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2568 lines
98 KiB
Fortran
2568 lines
98 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006-2018
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! Salvatore Filippone
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! Alfredo Buttari
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions
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! are met:
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions, and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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! 3. The name of the PSBLAS group or the names of its contributors may
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! not be used to endorse or promote products derived from this
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! software without specific written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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!
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!
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! File: psi_zswaptran.F90
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!
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! Subroutine: psi_zswaptran_vect
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! Implements the data exchange among processes. This is similar to Xswapdata, but
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! the list is read "in reverse", i.e. indices that are normally SENT are used
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! for the RECEIVE part and vice-versa. This is the basic data exchange operation
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! for doing the product of a sparse matrix by a vector.
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! Essentially this is doing a variable all-to-all data exchange
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! (ALLTOALLV in MPI parlance), but
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! it is capable of pruning empty exchanges, which are very likely in out
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! application environment. All the variants have the same structure
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! In all these subroutines X may be: I Integer
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! S real(psb_spk_)
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! D complex(psb_dpk_)
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! C complex(psb_spk_)
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! Z complex(psb_dpk_)
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! Basically the operation is as follows: on each process, we identify
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! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
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! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
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! but only on the elements involved in the SCT operation.
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! Thus: for halo data exchange, the receive section is confined in the
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! halo indices, and BETA=0, whereas for overlap exchange the receive section
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! is scattered in the owned indices, and BETA=1.
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! The first routine picks the desired exchange index list and passes it to the second.
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! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
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! so that special versions (i.e. GPU vectors can override them
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!
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!
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! Arguments:
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! swap_status - integer Choose the algorithm for data exchange:
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! this is chosen through bit fields.
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! swap_mpi = iand(swap_status,psb_swap_mpi_) /= 0
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! swap_sync = iand(swap_status,psb_swap_sync_) /= 0
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! swap_send = iand(swap_status,psb_swap_send_) /= 0
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! swap_recv = iand(swap_status,psb_swap_recv_) /= 0
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! if (swap_mpi): use underlying MPI_ALLTOALLV.
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! if (swap_sync): use PSB_SND and PSB_RCV in
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! synchronized pairs
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! if (swap_send .and. swap_recv): use mpi_irecv
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! and mpi_send
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! if (swap_send): use psb_snd (but need another
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! call with swap_recv to complete)
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! if (swap_recv): use psb_rcv (completing a
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! previous call with swap_send)
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!
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!
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! n - integer Number of columns in Y
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! beta - real Choose overwrite or sum.
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! y - type(psb_d_vect_type) The data area
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! desc_a - type(psb_desc_type). The communication descriptor.
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! our own internal allocation.
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! info - integer. return code.
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! data - integer which list is to be used to exchange data
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! default psb_comm_halo_
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! psb_comm_halo_ use halo_index
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! psb_comm_ext_ use ext_index
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! psb_comm_ovrl_ use ovrl_index
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! psb_comm_mov_ use ovr_mst_idx
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!
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!
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submodule (psi_z_comm_v_mod) psi_z_swaptran_impl
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use psb_base_mod
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use psb_comm_factory_mod
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contains
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module subroutine psi_zswaptran_vect(swap_status,beta,y,desc_a,info,data)
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#ifdef PSB_MPI_MOD
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use mpi
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#endif
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implicit none
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#ifdef PSB_MPI_H
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include 'mpif.h'
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#endif
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integer(psb_ipk_), intent(in) :: swap_status
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complex(psb_dpk_), intent(in) :: beta
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class(psb_z_base_vect_type), intent(inout) :: y
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type(psb_desc_type),target :: desc_a
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), optional :: data
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! locals
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type(psb_ctxt_type) :: ctxt
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integer(psb_mpk_) :: icomm
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integer(psb_ipk_) :: np, me, total_send, total_recv, num_neighbors, err_act, data_
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class(psb_i_base_vect_type), pointer :: comm_indexes
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character(len=20) :: name
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info = psb_success_
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name = 'psi_zswaptran_vect'
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call psb_erractionsave(err_act)
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ctxt = desc_a%get_context()
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icomm = ctxt%get_mpic()
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call psb_info(ctxt,me,np)
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if (np == -1) then
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info=psb_err_context_error_
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call psb_errpush(info,name)
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goto 9999
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endif
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if (.not.psb_is_asb_desc(desc_a)) then
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info=psb_err_invalid_cd_state_
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call psb_errpush(info,name)
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goto 9999
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endif
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if (present(data)) then
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data_ = data
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else
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data_ = psb_comm_halo_
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end if
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call desc_a%get_list_p(data_,comm_indexes,num_neighbors,total_recv,total_send,info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_internal_error_,name,a_err='psb_cd_get_list')
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goto 9999
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end if
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if( (swap_status /= psb_comm_status_start_).and.(swap_status /= psb_comm_status_wait_)&
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& .and.(swap_status /= psb_comm_status_sync_) ) then
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info = psb_err_mpi_error_
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call psb_errpush(info,name,a_err='Invalid swap_status swap_status')
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goto 9999
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end if
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if (.not. allocated(y%comm_handle)) then
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call psb_comm_set(psb_comm_isend_irecv_, y%comm_handle, info)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_internal_error_, name, a_err='init comm default baseline')
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goto 9999
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end if
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end if
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! Set the normalized swap status on the comm handle
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call y%comm_handle%set_swap_status(swap_status, info)
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if (info /= psb_success_) then
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call psb_errpush(info,name,a_err='set_swap_status')
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goto 9999
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end if
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select case(y%comm_handle%comm_type)
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case(psb_comm_ineighbor_alltoallv_)
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call psi_ztran_neighbor_topology_vect(ctxt,swap_status,beta,y,comm_indexes,&
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& num_neighbors,total_send,total_recv,y%comm_handle,info)
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if (info /= psb_success_) then
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call psb_errpush(info,name,a_err='neighbor a2av tran')
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goto 9999
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end if
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case(psb_comm_persistent_ineighbor_alltoallv_)
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call psi_ztran_neighbor_persistent_topology_vect(ctxt,swap_status,beta,y,comm_indexes,&
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& num_neighbors,total_send,total_recv,y%comm_handle,info)
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if (info /= psb_success_) then
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call psb_errpush(info,name,a_err='persistent neighbor tran')
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goto 9999
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end if
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case(psb_comm_rma_pull_)
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call psi_ztran_rma_pull_vect(ctxt,swap_status,beta,y,comm_indexes,&
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& num_neighbors,total_send,total_recv,y%comm_handle,info)
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if (info /= psb_success_) then
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call psb_errpush(info,name,a_err='rma pull tran')
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goto 9999
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end if
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case(psb_comm_rma_push_)
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call psi_ztran_rma_push_vect(ctxt,swap_status,beta,y,comm_indexes,&
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& num_neighbors,total_send,total_recv,y%comm_handle,info)
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if (info /= psb_success_) then
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call psb_errpush(info,name,a_err='rma push tran')
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goto 9999
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end if
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case default
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call psi_ztran_baseline_vect(ctxt,swap_status,beta,y,comm_indexes,num_neighbors,total_send,total_recv,y%comm_handle,info)
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if (info /= psb_success_) then
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call psb_errpush(info,name,a_err='baseline tran')
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goto 9999
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end if
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end select
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(ctxt,err_act)
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return
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end subroutine psi_zswaptran_vect
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!
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!
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! Subroutine: psi_ztran_baseline_vect
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! Data exchange among processes.
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!
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! Takes care of Y an encapsulated vector. Relies on the gather/scatter methods
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! of vectors.
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!
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! The real workhorse: the outer routine will only choose the index list
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! this one takes the index list and does the actual exchange.
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!
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!
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!
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module subroutine psi_ztran_baseline_vect(ctxt,swap_status,beta,y,idx,&
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& num_neighbors,total_send,total_recv,comm_handle,info)
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#ifdef PSB_MPI_MOD
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use mpi
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#endif
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implicit none
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#ifdef PSB_MPI_H
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include 'mpif.h'
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#endif
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type(psb_ctxt_type), intent(in) :: ctxt
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integer(psb_ipk_), intent(in) :: swap_status
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complex(psb_dpk_), intent(in) :: beta
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class(psb_z_base_vect_type), intent(inout) :: y
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class(psb_i_base_vect_type), intent(inout) :: idx
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integer(psb_ipk_), intent(in) :: num_neighbors,total_send, total_recv
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class(psb_comm_handle_type), intent(inout) :: comm_handle
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integer(psb_ipk_), intent(out) :: info
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! locals
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integer(psb_mpk_) :: np, me, nesd, nerv, n
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integer(psb_mpk_) :: proc_to_comm, p2ptag, p2pstat(mpi_status_size), iret
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integer(psb_mpk_) :: icomm
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integer(psb_mpk_), allocatable :: prcid(:)
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type(psb_comm_baseline_handle), pointer :: baseline_comm_handle
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integer(psb_ipk_) :: err_act, i, idx_pt, total_send_, total_recv_,&
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& snd_pt, rcv_pt, pnti
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logical :: swap_mpi, swap_sync, swap_send, swap_recv,&
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& albf,do_send,do_recv
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logical, parameter :: usersend=.false., debug=.false.
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character(len=20) :: name
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info = psb_success_
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name = 'psi_ztran_baseline_vect'
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call psb_erractionsave(err_act)
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call psb_info(ctxt,me,np)
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if (np == -1) then
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info=psb_err_context_error_
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call psb_errpush(info,name)
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goto 9999
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endif
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icomm = ctxt%get_mpic()
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baseline_comm_handle => null()
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select type(ch => comm_handle)
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type is(psb_comm_baseline_handle)
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baseline_comm_handle => ch
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class default
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info = psb_err_mpi_error_
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call psb_errpush(info,name,a_err='Expected baseline comm_handle in baseline swaptran')
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goto 9999
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end select
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n=1
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do_send = (swap_status == psb_comm_status_start_) .or. (swap_status == psb_comm_status_sync_)
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do_recv = (swap_status == psb_comm_status_wait_) .or. (swap_status == psb_comm_status_sync_)
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total_recv_ = total_recv * n
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total_send_ = total_send * n
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|
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call idx%sync()
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if (debug) write(*,*) me,'Internal buffer'
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if (do_send) then
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if (allocated(baseline_comm_handle%comid)) then
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if (any(baseline_comm_handle%comid /= mpi_request_null)) then
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!
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! Unfinished communication? Something is wrong....
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!
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info=psb_err_mpi_error_
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call psb_errpush(info,name,m_err=(/-2/))
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goto 9999
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end if
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end if
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if (debug) write(*,*) me,'do_send start'
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call y%new_buffer(ione*size(idx%v),info)
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call psb_realloc(num_neighbors,2_psb_ipk_,baseline_comm_handle%comid,info)
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baseline_comm_handle%comid = mpi_request_null
|
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call psb_realloc(num_neighbors,prcid,info)
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! First I post all the non blocking receives
|
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pnti = 1
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p2ptag = psb_double_swap_tag
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do i=1, num_neighbors
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proc_to_comm = idx%v(pnti+psb_proc_id_)
|
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nerv = idx%v(pnti+psb_n_elem_recv_)
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nesd = idx%v(pnti+nerv+psb_n_elem_send_)
|
|
|
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snd_pt = 1+pnti+nerv+psb_n_elem_send_
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rcv_pt = 1+pnti+psb_n_elem_recv_
|
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prcid(i) = psb_get_mpi_rank(ctxt,proc_to_comm)
|
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if ((nesd>0).and.(proc_to_comm /= me)) then
|
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if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
|
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call mpi_irecv(y%combuf(snd_pt),nesd,&
|
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& psb_mpi_c_dpk_,prcid(i),&
|
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& p2ptag, icomm,baseline_comm_handle%comid(i,2),iret)
|
|
end if
|
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pnti = pnti + nerv + nesd + 3
|
|
end do
|
|
|
|
if (debug) write(*,*) me,' Gather '
|
|
!
|
|
! Then gather for sending.
|
|
!
|
|
pnti = 1
|
|
snd_pt = 1
|
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do i=1, num_neighbors
|
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nerv = idx%v(pnti+psb_n_elem_recv_)
|
|
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
|
|
snd_pt = 1+pnti+nerv+psb_n_elem_send_
|
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rcv_pt = 1+pnti+psb_n_elem_recv_
|
|
|
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idx_pt = rcv_pt
|
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call y%gth(idx_pt,nerv,idx)
|
|
|
|
pnti = pnti + nerv + nesd + 3
|
|
end do
|
|
|
|
!
|
|
! Then wait
|
|
!
|
|
call y%device_wait()
|
|
|
|
if (debug) write(*,*) me,' isend'
|
|
!
|
|
! Then send
|
|
!
|
|
|
|
pnti = 1
|
|
snd_pt = 1
|
|
rcv_pt = 1
|
|
p2ptag = psb_double_swap_tag
|
|
do i=1, num_neighbors
|
|
proc_to_comm = idx%v(pnti+psb_proc_id_)
|
|
nerv = idx%v(pnti+psb_n_elem_recv_)
|
|
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
|
|
snd_pt = 1+pnti+nerv+psb_n_elem_send_
|
|
rcv_pt = 1+pnti+psb_n_elem_recv_
|
|
|
|
if ((nerv>0).and.(proc_to_comm /= me)) then
|
|
call mpi_isend(y%combuf(rcv_pt),nerv,&
|
|
& psb_mpi_c_dpk_,prcid(i),&
|
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& p2ptag,icomm,baseline_comm_handle%comid(i,1),iret)
|
|
end if
|
|
|
|
if(iret /= mpi_success) then
|
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info=psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
|
|
pnti = pnti + nerv + nesd + 3
|
|
end do
|
|
end if
|
|
|
|
if (do_recv) then
|
|
if (debug) write(*,*) me,' do_Recv'
|
|
if (.not.allocated(baseline_comm_handle%comid)) then
|
|
!
|
|
! No matching send? Something is wrong....
|
|
!
|
|
info=psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/-2/))
|
|
goto 9999
|
|
end if
|
|
call psb_realloc(num_neighbors,prcid,info)
|
|
|
|
if (debug) write(*,*) me,' wait'
|
|
pnti = 1
|
|
p2ptag = psb_double_swap_tag
|
|
do i=1, num_neighbors
|
|
proc_to_comm = idx%v(pnti+psb_proc_id_)
|
|
nerv = idx%v(pnti+psb_n_elem_recv_)
|
|
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
|
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snd_pt = 1+pnti+nerv+psb_n_elem_send_
|
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rcv_pt = 1+pnti+psb_n_elem_recv_
|
|
|
|
if (proc_to_comm /= me)then
|
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if (nerv>0) then
|
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call mpi_wait(baseline_comm_handle%comid(i,1),p2pstat,iret)
|
|
if(iret /= mpi_success) then
|
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info=psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
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goto 9999
|
|
end if
|
|
end if
|
|
if (nesd>0) then
|
|
call mpi_wait(baseline_comm_handle%comid(i,2),p2pstat,iret)
|
|
if(iret /= mpi_success) then
|
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info=psb_err_mpi_error_
|
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call psb_errpush(info,name,m_err=(/iret/))
|
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goto 9999
|
|
end if
|
|
end if
|
|
else if (proc_to_comm == me) then
|
|
if (nesd /= nerv) then
|
|
write(psb_err_unit,*) &
|
|
& 'Fatal error in swapdata: mismatch on self send',&
|
|
& nerv,nesd
|
|
end if
|
|
y%combuf(snd_pt:snd_pt+nesd-1) = y%combuf(rcv_pt:rcv_pt+nerv-1)
|
|
end if
|
|
pnti = pnti + nerv + nesd + 3
|
|
end do
|
|
|
|
if (debug) write(*,*) me,' scatter'
|
|
pnti = 1
|
|
snd_pt = 1
|
|
rcv_pt = 1
|
|
do i=1, num_neighbors
|
|
proc_to_comm = idx%v(pnti+psb_proc_id_)
|
|
nerv = idx%v(pnti+psb_n_elem_recv_)
|
|
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
|
|
idx_pt = 1+pnti+psb_n_elem_recv_
|
|
snd_pt = 1+pnti+nerv+psb_n_elem_send_
|
|
rcv_pt = 1+pnti+psb_n_elem_recv_
|
|
|
|
if (debug) write(0,*)me,' Received from: ',prcid(i),&
|
|
& y%combuf(snd_pt:snd_pt+nesd-1)
|
|
call y%sct(snd_pt,nesd,idx,beta)
|
|
pnti = pnti + nerv + nesd + 3
|
|
end do
|
|
!
|
|
! Waited for everybody, clean up
|
|
!
|
|
baseline_comm_handle%comid = mpi_request_null
|
|
|
|
!
|
|
! Then wait for device
|
|
!
|
|
if (debug) write(*,*) me,' wait'
|
|
call y%device_wait()
|
|
if (debug) write(*,*) me,' free buffer'
|
|
call y%maybe_free_buffer(info)
|
|
if (info == 0) then
|
|
if (allocated(y%comm_handle)) call psb_comm_free(y%comm_handle, info)
|
|
end if
|
|
if (info /= 0) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
if (debug) write(*,*) me,' done'
|
|
end if
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ctxt,err_act)
|
|
|
|
return
|
|
|
|
end subroutine psi_ztran_baseline_vect
|
|
|
|
|
|
|
|
|
|
subroutine psi_ztran_neighbor_topology_vect(ctxt,swap_status,beta,y,comm_indexes,&
|
|
& num_neighbors,total_send,total_recv,comm_handle,info)
|
|
#ifdef PSB_MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef PSB_MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
type(psb_ctxt_type), intent(in) :: ctxt
|
|
integer(psb_ipk_), intent(in) :: swap_status
|
|
complex(psb_dpk_), intent(in) :: beta
|
|
class(psb_z_base_vect_type), intent(inout) :: y
|
|
class(psb_i_base_vect_type), intent(inout) :: comm_indexes
|
|
integer(psb_ipk_), intent(in) :: num_neighbors,total_send,total_recv
|
|
class(psb_comm_handle_type), intent(inout) :: comm_handle
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
! locals
|
|
integer(psb_mpk_) :: icomm
|
|
integer(psb_mpk_) :: np, me
|
|
integer(psb_mpk_) :: iret, p2pstat(mpi_status_size)
|
|
type(psb_comm_neighbor_handle), pointer :: neighbor_comm_handle
|
|
integer(psb_ipk_) :: err_act, topology_total_send, topology_total_recv, buffer_size
|
|
logical :: do_start, do_wait
|
|
logical, parameter :: debug = .false.
|
|
character(len=30) :: name
|
|
|
|
|
|
info = psb_success_
|
|
name = 'psi_ztran_neighbor_topology_vect'
|
|
call psb_erractionsave(err_act)
|
|
call psb_info(ctxt,me,np)
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
icomm = ctxt%get_mpic()
|
|
|
|
neighbor_comm_handle => null()
|
|
select type(ch => comm_handle)
|
|
type is(psb_comm_neighbor_handle)
|
|
neighbor_comm_handle => ch
|
|
class default
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Expected neighbor comm_handle in neighbor swaptran')
|
|
goto 9999
|
|
end select
|
|
|
|
do_start = (swap_status == psb_comm_status_start_) .or. (swap_status == psb_comm_status_sync_)
|
|
do_wait = (swap_status == psb_comm_status_wait_) .or. (swap_status == psb_comm_status_sync_)
|
|
|
|
call comm_indexes%sync()
|
|
|
|
! ---------------------------------------------------------
|
|
! START phase: build topology (if needed), gather, post MPI
|
|
! ---------------------------------------------------------
|
|
if (do_start) then
|
|
if(debug) write(*,*) me,' nbr_vect: starting data exchange'
|
|
! Lazy initialization: build the topology on first call
|
|
if (.not. neighbor_comm_handle%is_initialized) then
|
|
if (debug) write(*,*) me,' nbr_vect: building topology'
|
|
call neighbor_comm_handle%topology_init(comm_indexes%v, num_neighbors, total_send, total_recv, ctxt, icomm, info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_, name, &
|
|
& a_err='neighbor_topology_init')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
topology_total_send = neighbor_comm_handle%total_send
|
|
topology_total_recv = neighbor_comm_handle%total_recv
|
|
|
|
! Buffer layout:
|
|
! combuf(1 : total_send) = send area
|
|
! combuf(total_send+1 : total_send+total_recv) = recv area
|
|
buffer_size = topology_total_send + topology_total_recv
|
|
|
|
call y%new_buffer(buffer_size, info)
|
|
if (info /= 0) then
|
|
call psb_errpush(psb_err_alloc_dealloc_, name)
|
|
goto 9999
|
|
end if
|
|
neighbor_comm_handle%comm_request = mpi_request_null
|
|
|
|
! For transpose exchange: gather recv area first (we will send "recv" data)
|
|
if (debug) write(*,*) me,' nbr_tran_vect: gathering recv data,', topology_total_recv,' elems'
|
|
call y%gth(int(topology_total_recv,psb_mpk_), &
|
|
& neighbor_comm_handle%recv_indexes, &
|
|
& y%combuf(1:topology_total_recv))
|
|
|
|
! Wait for device (important for GPU subclasses)
|
|
call y%device_wait()
|
|
|
|
! Post non-blocking neighborhood alltoallv swapping send/recv arrays
|
|
if (debug) write(*,*) me,' nbr_tran_vect: posting MPI_Ineighbor_alltoallv (swapped)'
|
|
call mpi_ineighbor_alltoallv( &
|
|
& y%combuf(1), & ! send buffer (recv_indexes gathered)
|
|
& neighbor_comm_handle%recv_counts, &
|
|
& neighbor_comm_handle%recv_displs, &
|
|
& psb_mpi_c_dpk_, &
|
|
& y%combuf(topology_total_recv + 1), & ! recv buffer (will contain send_indexes data)
|
|
& neighbor_comm_handle%send_counts, &
|
|
& neighbor_comm_handle%send_displs, &
|
|
& psb_mpi_c_dpk_, &
|
|
& neighbor_comm_handle%graph_comm, &
|
|
& neighbor_comm_handle%comm_request, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
|
|
end if ! do_start
|
|
|
|
! ---------------------------------------------------------
|
|
! WAIT phase: complete MPI, scatter received data
|
|
! ---------------------------------------------------------
|
|
if (do_wait) then
|
|
|
|
if (neighbor_comm_handle%comm_request == mpi_request_null) then
|
|
! No matching start? Something is wrong
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/-2/))
|
|
goto 9999
|
|
end if
|
|
|
|
topology_total_send = neighbor_comm_handle%total_send
|
|
topology_total_recv = neighbor_comm_handle%total_recv
|
|
|
|
! Wait for the non-blocking collective to complete
|
|
if (debug) write(*,*) me,' nbr_vect: waiting on MPI request'
|
|
call mpi_wait(neighbor_comm_handle%comm_request, p2pstat, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
|
|
! For transpose exchange: scatter the data that correspond to peers' send area
|
|
if (debug) write(*,*) me,' nbr_tran_vect: scattering send-index data,', topology_total_send,' elems'
|
|
call y%sct(int(topology_total_send,psb_mpk_), &
|
|
& neighbor_comm_handle%send_indexes, &
|
|
& y%combuf(topology_total_recv+1:topology_total_recv+topology_total_send), &
|
|
& beta)
|
|
|
|
|
|
! Clean up
|
|
neighbor_comm_handle%comm_request = mpi_request_null
|
|
call y%device_wait()
|
|
call y%maybe_free_buffer(info)
|
|
if (info /= 0) then
|
|
call psb_errpush(psb_err_alloc_dealloc_, name)
|
|
goto 9999
|
|
end if
|
|
if (debug) write(*,*) me,' nbr_vect: done'
|
|
|
|
end if ! do_wait
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ctxt,err_act)
|
|
|
|
return
|
|
end subroutine psi_ztran_neighbor_topology_vect
|
|
|
|
|
|
|
|
|
|
!
|
|
!
|
|
!
|
|
!
|
|
! Subroutine: psi_zswaptran_multivect
|
|
! Data exchange among processes.
|
|
!
|
|
! Takes care of Y an encaspulated multivector.
|
|
!
|
|
!
|
|
module subroutine psi_zswaptran_multivect(swap_status,beta,y,desc_a,info,data)
|
|
|
|
#ifdef PSB_MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef PSB_MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
integer(psb_ipk_), intent(in) :: swap_status
|
|
complex(psb_dpk_), intent(in) :: beta
|
|
class(psb_z_base_multivect_type), intent(inout) :: y
|
|
type(psb_desc_type),target :: desc_a
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), optional :: data
|
|
|
|
! locals
|
|
type(psb_ctxt_type) :: ctxt
|
|
integer(psb_mpk_) :: icomm
|
|
integer(psb_ipk_) :: np, me, total_send, total_recv, num_neighbors, err_act, data_
|
|
class(psb_i_base_vect_type), pointer :: comm_indexes
|
|
character(len=20) :: name
|
|
|
|
integer(psb_ipk_) :: setflag
|
|
|
|
|
|
info = psb_success_
|
|
name = 'psi_zswaptran_multivect'
|
|
call psb_erractionsave(err_act)
|
|
|
|
ctxt = desc_a%get_context()
|
|
icomm = ctxt%get_mpic()
|
|
call psb_info(ctxt,me,np)
|
|
if (np == -1) then
|
|
info = psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
if (.not.psb_is_asb_desc(desc_a)) then
|
|
info=psb_err_invalid_cd_state_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
if (present(data)) then
|
|
data_ = data
|
|
else
|
|
data_ = psb_comm_halo_
|
|
end if
|
|
|
|
call desc_a%get_list_p(data_,comm_indexes,num_neighbors,total_recv,total_send,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_,name,a_err='psb_cd_get_list')
|
|
goto 9999
|
|
end if
|
|
|
|
setflag = swap_status
|
|
if (swap_status == psb_swap_start_) then
|
|
setflag = psb_comm_status_start_
|
|
else if (swap_status == psb_swap_wait_) then
|
|
setflag = psb_comm_status_wait_
|
|
else if ((iand(swap_status, psb_swap_send_) /= 0) .or. (iand(swap_status, psb_swap_recv_) /= 0) .or. &
|
|
& (iand(swap_status, psb_swap_mpi_) /= 0) .or. (iand(swap_status, psb_swap_sync_) /= 0)) then
|
|
setflag = psb_comm_status_sync_
|
|
end if
|
|
|
|
if ((setflag /= psb_comm_status_start_) .and. (setflag /= psb_comm_status_wait_) .and. &
|
|
& (setflag /= psb_comm_status_sync_)) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Invalid swap_status')
|
|
goto 9999
|
|
end if
|
|
|
|
if (.not. allocated(y%comm_handle)) then
|
|
call psb_comm_set(psb_comm_isend_irecv_, y%comm_handle, info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_, name, a_err='init comm default baseline')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
call y%comm_handle%set_swap_status(setflag, info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name,a_err='set_swap_status')
|
|
goto 9999
|
|
end if
|
|
|
|
select case(y%comm_handle%comm_type)
|
|
case(psb_comm_ineighbor_alltoallv_)
|
|
call psi_ztran_neighbor_topology_multivect(ctxt,setflag,beta,y,comm_indexes,&
|
|
& num_neighbors,total_send,total_recv,y%comm_handle,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name,a_err='neighbor a2av tran')
|
|
goto 9999
|
|
end if
|
|
case(psb_comm_persistent_ineighbor_alltoallv_)
|
|
call psi_ztran_neighbor_persistent_topology_multivect(ctxt,setflag,beta,y,comm_indexes,&
|
|
& num_neighbors,total_send,total_recv,y%comm_handle,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name,a_err='persistent neighbor tran')
|
|
goto 9999
|
|
end if
|
|
case(psb_comm_rma_pull_)
|
|
call psi_ztran_rma_pull_multivect(ctxt,setflag,beta,y,comm_indexes,&
|
|
& num_neighbors,total_send,total_recv,y%comm_handle,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name,a_err='rma pull tran')
|
|
goto 9999
|
|
end if
|
|
case(psb_comm_rma_push_)
|
|
call psi_ztran_rma_push_multivect(ctxt,setflag,beta,y,comm_indexes,&
|
|
& num_neighbors,total_send,total_recv,y%comm_handle,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name,a_err='rma push tran')
|
|
goto 9999
|
|
end if
|
|
case default
|
|
call psi_ztran_baseline_multivect(ctxt,setflag,beta,y,comm_indexes,num_neighbors,total_send,total_recv,y%comm_handle,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name,a_err='baseline tran')
|
|
goto 9999
|
|
end if
|
|
end select
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ctxt,err_act)
|
|
|
|
return
|
|
end subroutine psi_zswaptran_multivect
|
|
|
|
subroutine psi_ztran_baseline_multivect(ctxt,swap_status,beta,y,idx,&
|
|
& num_neighbors,total_send,total_recv,comm_handle,info)
|
|
|
|
#ifdef PSB_MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef PSB_MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
type(psb_ctxt_type), intent(in) :: ctxt
|
|
integer(psb_ipk_), intent(in) :: swap_status
|
|
integer(psb_ipk_), intent(out) :: info
|
|
class(psb_z_base_multivect_type), intent(inout) :: y
|
|
complex(psb_dpk_), intent(in) :: beta
|
|
class(psb_i_base_vect_type), intent(inout) :: idx
|
|
integer(psb_ipk_), intent(in) :: num_neighbors,total_send,total_recv
|
|
class(psb_comm_handle_type), intent(inout) :: comm_handle
|
|
|
|
! locals
|
|
integer(psb_mpk_) :: np, me, nesd, nerv, n
|
|
integer(psb_mpk_) :: proc_to_comm, p2ptag, p2pstat(mpi_status_size), iret
|
|
integer(psb_mpk_) :: icomm
|
|
integer(psb_mpk_), allocatable :: prcid(:)
|
|
type(psb_comm_baseline_handle), pointer :: baseline_comm_handle
|
|
integer(psb_ipk_) :: err_act, i, idx_pt, total_send_, total_recv_,&
|
|
& snd_pt, rcv_pt, pnti
|
|
logical :: swap_mpi, swap_sync, swap_send, swap_recv,&
|
|
& albf,do_send,do_recv
|
|
logical, parameter :: usersend=.false., debug=.false.
|
|
character(len=20) :: name
|
|
|
|
info = psb_success_
|
|
name = 'psi_ztran_vidx_multivect'
|
|
call psb_erractionsave(err_act)
|
|
call psb_info(ctxt,me,np)
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
icomm = ctxt%get_mpic()
|
|
|
|
baseline_comm_handle => null()
|
|
select type(ch => comm_handle)
|
|
type is(psb_comm_baseline_handle)
|
|
baseline_comm_handle => ch
|
|
class default
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Expected baseline comm_handle in baseline multivect swaptran')
|
|
goto 9999
|
|
end select
|
|
|
|
n = y%get_ncols()
|
|
|
|
do_send = (swap_status == psb_comm_status_start_) .or. (swap_status == psb_comm_status_sync_)
|
|
do_recv = (swap_status == psb_comm_status_wait_) .or. (swap_status == psb_comm_status_sync_)
|
|
|
|
total_recv_ = total_recv * n
|
|
total_send_ = total_send * n
|
|
|
|
call idx%sync()
|
|
|
|
if (debug) write(*,*) me,'Internal buffer'
|
|
if (do_send) then
|
|
if (allocated(baseline_comm_handle%comid)) then
|
|
if (any(baseline_comm_handle%comid /= mpi_request_null)) then
|
|
!
|
|
! Unfinished communication? Something is wrong....
|
|
!
|
|
info=psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/-2/))
|
|
goto 9999
|
|
end if
|
|
end if
|
|
if (debug) write(*,*) me,'do_send start'
|
|
call y%new_buffer(ione*size(idx%v),info)
|
|
call psb_realloc(num_neighbors,2_psb_ipk_,baseline_comm_handle%comid,info)
|
|
baseline_comm_handle%comid = mpi_request_null
|
|
call psb_realloc(num_neighbors,prcid,info)
|
|
! First I post all the non blocking receives
|
|
pnti = 1
|
|
snd_pt = total_recv_+1
|
|
rcv_pt = 1
|
|
p2ptag = psb_double_swap_tag
|
|
do i=1, num_neighbors
|
|
proc_to_comm = idx%v(pnti+psb_proc_id_)
|
|
nerv = idx%v(pnti+psb_n_elem_recv_)
|
|
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
|
|
prcid(i) = psb_get_mpi_rank(ctxt,proc_to_comm)
|
|
if ((nesd>0).and.(proc_to_comm /= me)) then
|
|
if (debug) write(*,*) me,'Posting receive from',prcid(i),snd_pt
|
|
call mpi_irecv(y%combuf(snd_pt),n*nesd,&
|
|
& psb_mpi_c_dpk_,prcid(i),&
|
|
& p2ptag, icomm,baseline_comm_handle%comid(i,2),iret)
|
|
end if
|
|
rcv_pt = rcv_pt + n*nerv
|
|
snd_pt = snd_pt + n*nesd
|
|
pnti = pnti + nerv + nesd + 3
|
|
end do
|
|
|
|
if (debug) write(*,*) me,' Gather '
|
|
!
|
|
! Then gather for sending.
|
|
!
|
|
pnti = 1
|
|
snd_pt = total_recv_+1
|
|
rcv_pt = 1
|
|
do i=1, num_neighbors
|
|
nerv = idx%v(pnti+psb_n_elem_recv_)
|
|
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
|
|
idx_pt = 1+pnti+psb_n_elem_recv_
|
|
call y%gth(idx_pt,rcv_pt,nerv,idx)
|
|
rcv_pt = rcv_pt + n*nerv
|
|
snd_pt = snd_pt + n*nesd
|
|
pnti = pnti + nerv + nesd + 3
|
|
end do
|
|
|
|
!
|
|
! Then wait for device
|
|
!
|
|
call y%device_wait()
|
|
|
|
if (debug) write(*,*) me,' isend'
|
|
!
|
|
! Then send
|
|
!
|
|
|
|
pnti = 1
|
|
snd_pt = total_recv_+1
|
|
rcv_pt = 1
|
|
p2ptag = psb_double_swap_tag
|
|
do i=1, num_neighbors
|
|
proc_to_comm = idx%v(pnti+psb_proc_id_)
|
|
nerv = idx%v(pnti+psb_n_elem_recv_)
|
|
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
|
|
idx_pt = 1+pnti+psb_n_elem_recv_
|
|
|
|
if ((nerv>0).and.(proc_to_comm /= me)) then
|
|
call mpi_isend(y%combuf(rcv_pt),n*nerv,&
|
|
& psb_mpi_c_dpk_,prcid(i),&
|
|
& p2ptag,icomm,baseline_comm_handle%comid(i,1),iret)
|
|
end if
|
|
|
|
if(iret /= mpi_success) then
|
|
info=psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
rcv_pt = rcv_pt + n*nerv
|
|
snd_pt = snd_pt + n*nesd
|
|
pnti = pnti + nerv + nesd + 3
|
|
end do
|
|
end if
|
|
|
|
if (do_recv) then
|
|
if (debug) write(*,*) me,' do_Recv'
|
|
if (.not.allocated(baseline_comm_handle%comid)) then
|
|
!
|
|
! No matching send? Something is wrong....
|
|
!
|
|
info=psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/-2/))
|
|
goto 9999
|
|
end if
|
|
call psb_realloc(num_neighbors,prcid,info)
|
|
|
|
if (debug) write(*,*) me,' wait'
|
|
pnti = 1
|
|
snd_pt = total_recv_+1
|
|
rcv_pt = 1
|
|
p2ptag = psb_double_swap_tag
|
|
do i=1, num_neighbors
|
|
proc_to_comm = idx%v(pnti+psb_proc_id_)
|
|
nerv = idx%v(pnti+psb_n_elem_recv_)
|
|
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
|
|
if (proc_to_comm /= me)then
|
|
if (nerv>0) then
|
|
call mpi_wait(baseline_comm_handle%comid(i,1),p2pstat,iret)
|
|
if(iret /= mpi_success) then
|
|
info=psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
end if
|
|
if (nesd>0) then
|
|
call mpi_wait(baseline_comm_handle%comid(i,2),p2pstat,iret)
|
|
if(iret /= mpi_success) then
|
|
info=psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
end if
|
|
else if (proc_to_comm == me) then
|
|
if (nesd /= nerv) then
|
|
write(psb_err_unit,*) &
|
|
& 'Fatal error in swapdata: mismatch on self send',&
|
|
& nerv,nesd
|
|
end if
|
|
y%combuf(snd_pt:snd_pt+n*nesd-1) = y%combuf(rcv_pt:rcv_pt+n*nerv-1)
|
|
end if
|
|
rcv_pt = rcv_pt + n*nerv
|
|
snd_pt = snd_pt + n*nesd
|
|
pnti = pnti + nerv + nesd + 3
|
|
end do
|
|
|
|
if (debug) write(*,*) me,' scatter'
|
|
pnti = 1
|
|
snd_pt = total_recv_+1
|
|
rcv_pt = 1
|
|
do i=1, num_neighbors
|
|
proc_to_comm = idx%v(pnti+psb_proc_id_)
|
|
nerv = idx%v(pnti+psb_n_elem_recv_)
|
|
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
|
|
idx_pt = 1+pnti+nerv+psb_n_elem_send_
|
|
|
|
if (debug) write(0,*)me,' Received from: ',prcid(i),&
|
|
& y%combuf(snd_pt:snd_pt+n*nesd-1)
|
|
call y%sct(idx_pt,snd_pt,nesd,idx,beta)
|
|
rcv_pt = rcv_pt + n*nerv
|
|
snd_pt = snd_pt + n*nesd
|
|
pnti = pnti + nerv + nesd + 3
|
|
end do
|
|
|
|
|
|
!
|
|
! Waited for com, cleanup comid
|
|
!
|
|
baseline_comm_handle%comid = mpi_request_null
|
|
|
|
!
|
|
! Then wait for device
|
|
!
|
|
if (debug) write(*,*) me,' wait'
|
|
call y%device_wait()
|
|
if (debug) write(*,*) me,' free buffer'
|
|
call y%maybe_free_buffer(info)
|
|
if (info == 0) then
|
|
if (allocated(y%comm_handle)) call psb_comm_free(y%comm_handle, info)
|
|
end if
|
|
if (info /= 0) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
if (debug) write(*,*) me,' done'
|
|
end if
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ctxt,err_act)
|
|
|
|
return
|
|
|
|
end subroutine psi_ztran_baseline_multivect
|
|
|
|
|
|
subroutine psi_ztran_neighbor_topology_multivect(ctxt,swap_status,beta,y,comm_indexes,&
|
|
& num_neighbors,total_send,total_recv,comm_handle,info)
|
|
#ifdef PSB_MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef PSB_MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
type(psb_ctxt_type), intent(in) :: ctxt
|
|
integer(psb_ipk_), intent(in) :: swap_status
|
|
complex(psb_dpk_), intent(in) :: beta
|
|
class(psb_z_base_multivect_type), intent(inout) :: y
|
|
class(psb_i_base_vect_type), intent(inout) :: comm_indexes
|
|
integer(psb_ipk_), intent(in) :: num_neighbors,total_send,total_recv
|
|
class(psb_comm_handle_type), intent(inout) :: comm_handle
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
! locals
|
|
integer(psb_mpk_) :: icomm
|
|
integer(psb_mpk_) :: np, me
|
|
integer(psb_mpk_) :: iret, p2pstat(mpi_status_size)
|
|
type(psb_comm_neighbor_handle), pointer :: neighbor_comm_handle
|
|
integer(psb_ipk_) :: err_act, topology_total_send, topology_total_recv, buffer_size
|
|
logical :: do_start, do_wait
|
|
logical, parameter :: debug = .false.
|
|
character(len=30) :: name
|
|
|
|
|
|
info = psb_success_
|
|
name = 'psi_ztran_neighbor_topology_multivect'
|
|
call psb_erractionsave(err_act)
|
|
call psb_info(ctxt,me,np)
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
icomm = ctxt%get_mpic()
|
|
|
|
neighbor_comm_handle => null()
|
|
select type(ch => comm_handle)
|
|
type is(psb_comm_neighbor_handle)
|
|
neighbor_comm_handle => ch
|
|
class default
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Expected neighbor comm_handle in neighbor multivect swaptran')
|
|
goto 9999
|
|
end select
|
|
|
|
do_start = (swap_status == psb_comm_status_start_) .or. (swap_status == psb_comm_status_sync_)
|
|
do_wait = (swap_status == psb_comm_status_wait_) .or. (swap_status == psb_comm_status_sync_)
|
|
|
|
call comm_indexes%sync()
|
|
|
|
! ---------------------------------------------------------
|
|
! START phase: build topology (if needed), gather, post MPI
|
|
! ---------------------------------------------------------
|
|
if (do_start) then
|
|
if(debug) write(*,*) me,' nbr_vect: starting data exchange'
|
|
! Lazy initialization: build the topology on first call
|
|
if (.not. neighbor_comm_handle%is_initialized) then
|
|
if (debug) write(*,*) me,' nbr_vect: building topology'
|
|
call neighbor_comm_handle%topology_init(comm_indexes%v, num_neighbors, total_send, total_recv, ctxt, icomm, info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_, name, &
|
|
& a_err='neighbor_topology_init')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
topology_total_send = neighbor_comm_handle%total_send
|
|
topology_total_recv = neighbor_comm_handle%total_recv
|
|
|
|
! Buffer layout:
|
|
! combuf(1 : total_send) = send area
|
|
! combuf(total_send+1 : total_send+total_recv) = recv area
|
|
buffer_size = topology_total_send + topology_total_recv
|
|
|
|
call y%new_buffer(buffer_size, info)
|
|
if (info /= 0) then
|
|
call psb_errpush(psb_err_alloc_dealloc_, name)
|
|
goto 9999
|
|
end if
|
|
neighbor_comm_handle%comm_request = mpi_request_null
|
|
|
|
! For transpose exchange: gather recv area first (we will send "recv" data)
|
|
if (debug) write(*,*) me,' nbr_tran_vect: gathering recv data,', topology_total_recv,' elems'
|
|
call y%gth(int(topology_total_recv,psb_mpk_), &
|
|
& neighbor_comm_handle%recv_indexes, &
|
|
& y%combuf(1:topology_total_recv))
|
|
|
|
! Wait for device (important for GPU subclasses)
|
|
call y%device_wait()
|
|
|
|
! Post non-blocking neighborhood alltoallv swapping send/recv arrays
|
|
if (debug) write(*,*) me,' nbr_tran_vect: posting MPI_Ineighbor_alltoallv (swapped)'
|
|
call mpi_ineighbor_alltoallv( &
|
|
& y%combuf(1), & ! send buffer (recv_indexes gathered)
|
|
& neighbor_comm_handle%recv_counts, &
|
|
& neighbor_comm_handle%recv_displs, &
|
|
& psb_mpi_c_dpk_, &
|
|
& y%combuf(topology_total_recv + 1), & ! recv buffer (will contain send_indexes data)
|
|
& neighbor_comm_handle%send_counts, &
|
|
& neighbor_comm_handle%send_displs, &
|
|
& psb_mpi_c_dpk_, &
|
|
& neighbor_comm_handle%graph_comm, &
|
|
& neighbor_comm_handle%comm_request, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
|
|
end if ! do_start
|
|
|
|
! ---------------------------------------------------------
|
|
! WAIT phase: complete MPI, scatter received data
|
|
! ---------------------------------------------------------
|
|
if (do_wait) then
|
|
|
|
if (neighbor_comm_handle%comm_request == mpi_request_null) then
|
|
! No matching start? Something is wrong
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/-2/))
|
|
goto 9999
|
|
end if
|
|
|
|
topology_total_send = neighbor_comm_handle%total_send
|
|
topology_total_recv = neighbor_comm_handle%total_recv
|
|
|
|
! Wait for the non-blocking collective to complete
|
|
if (debug) write(*,*) me,' nbr_vect: waiting on MPI request'
|
|
call mpi_wait(neighbor_comm_handle%comm_request, p2pstat, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
|
|
! For transpose exchange: scatter the data that correspond to peers' send area
|
|
if (debug) write(*,*) me,' nbr_tran_vect: scattering send-index data,', topology_total_send,' elems'
|
|
call y%sct(int(topology_total_send,psb_mpk_), &
|
|
& neighbor_comm_handle%send_indexes, &
|
|
& y%combuf(topology_total_recv+1:topology_total_recv+topology_total_send), &
|
|
& beta)
|
|
|
|
|
|
! Clean up
|
|
neighbor_comm_handle%comm_request = mpi_request_null
|
|
call y%device_wait()
|
|
call y%maybe_free_buffer(info)
|
|
if (info /= 0) then
|
|
call psb_errpush(psb_err_alloc_dealloc_, name)
|
|
goto 9999
|
|
end if
|
|
if (debug) write(*,*) me,' nbr_vect: done'
|
|
|
|
end if ! do_wait
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ctxt,err_act)
|
|
|
|
return
|
|
end subroutine psi_ztran_neighbor_topology_multivect
|
|
|
|
|
|
|
|
subroutine psi_ztran_neighbor_persistent_topology_vect(ctxt,swap_status,beta,y,comm_indexes,&
|
|
& num_neighbors,total_send,total_recv,comm_handle,info)
|
|
#ifdef PSB_MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef PSB_MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
type(psb_ctxt_type), intent(in) :: ctxt
|
|
integer(psb_ipk_), intent(in) :: swap_status
|
|
complex(psb_dpk_), intent(in) :: beta
|
|
class(psb_z_base_vect_type), intent(inout) :: y
|
|
class(psb_i_base_vect_type), intent(inout) :: comm_indexes
|
|
integer(psb_ipk_), intent(in) :: num_neighbors,total_send,total_recv
|
|
class(psb_comm_handle_type), intent(inout) :: comm_handle
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
integer(psb_mpk_) :: icomm, np, my_rank, iret
|
|
integer(psb_mpk_) :: p2pstat(mpi_status_size)
|
|
type(psb_comm_neighbor_handle), pointer :: neighbor_comm_handle
|
|
integer(psb_ipk_) :: err_act, topology_total_send, topology_total_recv, buffer_size
|
|
logical :: do_start, do_wait
|
|
logical, parameter :: debug = .false.
|
|
character(len=30) :: name
|
|
|
|
info = psb_success_
|
|
name = 'psi_ztran_neighbor_persistent_topology_vect'
|
|
call psb_erractionsave(err_act)
|
|
call psb_info(ctxt,my_rank,np)
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
icomm = ctxt%get_mpic()
|
|
|
|
neighbor_comm_handle => null()
|
|
select type(ch => comm_handle)
|
|
type is(psb_comm_neighbor_handle)
|
|
neighbor_comm_handle => ch
|
|
class default
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Expected neighbor comm_handle in persistent neighbor swaptran')
|
|
goto 9999
|
|
end select
|
|
|
|
if (swap_status == psb_comm_status_unknown_) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='psb_comm_status_unknown_ not allowed in persistent neighbor swaptran')
|
|
goto 9999
|
|
end if
|
|
|
|
do_start = (swap_status == psb_comm_status_start_) .or. (swap_status == psb_comm_status_sync_)
|
|
do_wait = (swap_status == psb_comm_status_wait_) .or. (swap_status == psb_comm_status_sync_)
|
|
|
|
call comm_indexes%sync()
|
|
|
|
if (do_start) then
|
|
if (neighbor_comm_handle%persistent_in_flight) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Invalid START: persistent neighbor request already in flight')
|
|
goto 9999
|
|
end if
|
|
if (.not. neighbor_comm_handle%is_initialized) then
|
|
call neighbor_comm_handle%topology_init(comm_indexes%v, num_neighbors, total_send, total_recv, ctxt, icomm, info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_, name, a_err='neighbor_topology_init')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
topology_total_send = neighbor_comm_handle%total_send
|
|
topology_total_recv = neighbor_comm_handle%total_recv
|
|
buffer_size = topology_total_send + topology_total_recv
|
|
|
|
if (buffer_size > 0) then
|
|
if (.not. allocated(y%combuf)) then
|
|
if (neighbor_comm_handle%persistent_request_ready) then
|
|
if (neighbor_comm_handle%persistent_request /= mpi_request_null) then
|
|
call mpi_request_free(neighbor_comm_handle%persistent_request, iret)
|
|
end if
|
|
neighbor_comm_handle%persistent_request = mpi_request_null
|
|
neighbor_comm_handle%persistent_request_ready = .false.
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
neighbor_comm_handle%persistent_buffer_size = 0
|
|
end if
|
|
call y%new_buffer(buffer_size, info)
|
|
if (info /= 0) then
|
|
call psb_errpush(psb_err_alloc_dealloc_, name)
|
|
goto 9999
|
|
end if
|
|
else if (size(y%combuf) < buffer_size) then
|
|
if (neighbor_comm_handle%persistent_request_ready) then
|
|
if (neighbor_comm_handle%persistent_request /= mpi_request_null) then
|
|
call mpi_request_free(neighbor_comm_handle%persistent_request, iret)
|
|
end if
|
|
neighbor_comm_handle%persistent_request = mpi_request_null
|
|
neighbor_comm_handle%persistent_request_ready = .false.
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
neighbor_comm_handle%persistent_buffer_size = 0
|
|
end if
|
|
call y%new_buffer(buffer_size, info)
|
|
if (info /= 0) then
|
|
call psb_errpush(psb_err_alloc_dealloc_, name)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
end if
|
|
neighbor_comm_handle%comm_request = mpi_request_null
|
|
|
|
if (buffer_size > 0) then
|
|
! Transpose: gather from recv_indexes (we "send" recv data)
|
|
if (debug) write(*,*) my_rank,' tran_persistent_vect: gathering recv data,',topology_total_recv,' elems'
|
|
call y%gth(int(topology_total_recv,psb_mpk_), &
|
|
& neighbor_comm_handle%recv_indexes, &
|
|
& y%combuf(1:topology_total_recv))
|
|
else
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
end if
|
|
|
|
call y%device_wait()
|
|
|
|
if (.not. neighbor_comm_handle%persistent_request_ready) then
|
|
if (buffer_size > 0) then
|
|
! Transpose: swap send/recv counts in alltoallv_init
|
|
! send = recv_indexes data with recv_counts/displs
|
|
! recv = into send_indexes area with send_counts/displs
|
|
call mpi_neighbor_alltoallv_init( &
|
|
& y%combuf(1), &
|
|
& neighbor_comm_handle%recv_counts, &
|
|
& neighbor_comm_handle%recv_displs, &
|
|
& psb_mpi_c_dpk_, &
|
|
& y%combuf(topology_total_recv + 1), &
|
|
& neighbor_comm_handle%send_counts, &
|
|
& neighbor_comm_handle%send_displs, &
|
|
& psb_mpi_c_dpk_, &
|
|
& neighbor_comm_handle%graph_comm, &
|
|
& mpi_info_null, &
|
|
& neighbor_comm_handle%persistent_request, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
neighbor_comm_handle%persistent_request_ready = .true.
|
|
neighbor_comm_handle%persistent_buffer_size = buffer_size
|
|
else
|
|
neighbor_comm_handle%persistent_request_ready = .false.
|
|
neighbor_comm_handle%persistent_buffer_size = 0
|
|
end if
|
|
end if
|
|
|
|
if (buffer_size > 0) then
|
|
call mpi_start(neighbor_comm_handle%persistent_request, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
neighbor_comm_handle%persistent_in_flight = .true.
|
|
else
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
end if
|
|
end if ! do_start
|
|
|
|
if (do_wait) then
|
|
topology_total_send = neighbor_comm_handle%total_send
|
|
topology_total_recv = neighbor_comm_handle%total_recv
|
|
|
|
if ((topology_total_send + topology_total_recv) == 0) then
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
else
|
|
if (.not. neighbor_comm_handle%persistent_in_flight) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, a_err='Invalid WAIT: no persistent neighbor request in flight')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
if ((topology_total_send + topology_total_recv) > 0) then
|
|
call mpi_wait(neighbor_comm_handle%persistent_request, p2pstat, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
|
|
! Transpose: scatter to send_indexes
|
|
if (debug) write(*,*) my_rank,' tran_persistent_vect: scattering to send_indexes,',topology_total_send,' elems'
|
|
call y%sct(int(topology_total_send,psb_mpk_), &
|
|
& neighbor_comm_handle%send_indexes, &
|
|
& y%combuf(topology_total_recv+1:topology_total_recv+topology_total_send), &
|
|
& beta)
|
|
end if
|
|
|
|
call y%device_wait()
|
|
end if ! do_wait
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ctxt,err_act)
|
|
return
|
|
end subroutine psi_ztran_neighbor_persistent_topology_vect
|
|
|
|
|
|
subroutine psi_ztran_rma_pull_vect(ctxt,swap_status,beta,y,comm_indexes,num_neighbors,total_send,total_recv,comm_handle,info)
|
|
#ifdef PSB_MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef PSB_MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
type(psb_ctxt_type), intent(in) :: ctxt
|
|
integer(psb_ipk_), intent(in) :: swap_status
|
|
complex(psb_dpk_), intent(in) :: beta
|
|
class(psb_z_base_vect_type), intent(inout) :: y
|
|
class(psb_i_base_vect_type), intent(inout) :: comm_indexes
|
|
integer(psb_ipk_), intent(in) :: num_neighbors, total_send, total_recv
|
|
class(psb_comm_handle_type), intent(inout) :: comm_handle
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
! Effective sizes for transpose:
|
|
! eff_send = total_recv (we expose recv_indexes data)
|
|
! eff_recv = total_send (we GET into the send_indexes area)
|
|
integer(psb_mpk_) :: np, my_rank, iret, element_bytes, icomm
|
|
integer(psb_mpk_) :: proc_to_comm, prc_rank, recv_count, send_count, send_pos, recv_pos, list_pos
|
|
integer(psb_mpk_) :: remote_base
|
|
integer(kind=MPI_ADDRESS_KIND) :: remote_disp, exposed_bytes
|
|
integer(psb_ipk_) :: err_act, neighbor_idx, buffer_size, eff_send, eff_recv
|
|
integer(psb_ipk_), allocatable :: peer_mpi_rank(:)
|
|
logical :: do_start, do_wait, layout_rebuild_needed
|
|
type(psb_comm_rma_handle), pointer :: rma_handle
|
|
character(len=30) :: name
|
|
|
|
info = psb_success_
|
|
name = 'psi_ztran_rma_pull_vect'
|
|
call psb_erractionsave(err_act)
|
|
call psb_info(ctxt,my_rank,np)
|
|
if (np == -1) then
|
|
info = psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
icomm = ctxt%get_mpic()
|
|
eff_send = total_recv
|
|
eff_recv = total_send
|
|
|
|
select type(ch => comm_handle)
|
|
type is(psb_comm_rma_handle)
|
|
rma_handle => ch
|
|
class default
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Expected RMA comm_handle for tran pull')
|
|
goto 9999
|
|
end select
|
|
|
|
do_start = (swap_status == psb_comm_status_start_) .or. (swap_status == psb_comm_status_sync_)
|
|
do_wait = (swap_status == psb_comm_status_wait_) .or. (swap_status == psb_comm_status_sync_)
|
|
|
|
call comm_indexes%sync()
|
|
|
|
if (do_start) then
|
|
buffer_size = eff_send + eff_recv
|
|
layout_rebuild_needed = (.not. rma_handle%layout_ready) .or. &
|
|
& (rma_handle%layout_nnbr /= num_neighbors) .or. &
|
|
& (rma_handle%layout_send /= eff_send) .or. &
|
|
& (rma_handle%layout_recv /= eff_recv)
|
|
|
|
if (layout_rebuild_needed) then
|
|
if (allocated(peer_mpi_rank)) deallocate(peer_mpi_rank)
|
|
if (num_neighbors > 0) then
|
|
allocate(peer_mpi_rank(num_neighbors), stat=iret)
|
|
if (iret /= 0) then
|
|
info = psb_err_alloc_dealloc_
|
|
call psb_errpush(info,name,a_err='RMA tran pull rank cache allocation')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
list_pos = 1
|
|
do neighbor_idx = 1, num_neighbors
|
|
proc_to_comm = comm_indexes%v(list_pos+psb_proc_id_)
|
|
peer_mpi_rank(neighbor_idx) = psb_get_mpi_rank(ctxt,proc_to_comm)
|
|
recv_count = comm_indexes%v(list_pos+psb_n_elem_recv_)
|
|
send_count = comm_indexes%v(list_pos+recv_count+psb_n_elem_send_)
|
|
list_pos = list_pos + recv_count + send_count + 3
|
|
end do
|
|
call rma_handle%init_memory_buffer_layout_tran(info, comm_indexes%v, peer_mpi_rank, &
|
|
& num_neighbors, total_send, total_recv, my_rank, icomm)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name,a_err='RMA tran pull init_memory_buffer_layout_tran failure')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
if (buffer_size > 0) then
|
|
if (.not. allocated(y%combuf)) then
|
|
call y%new_buffer(ione*size(comm_indexes%v), info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
else if (size(y%combuf) < size(comm_indexes%v)) then
|
|
if (rma_handle%window_open) then
|
|
call mpi_win_unlock_all(rma_handle%win, iret)
|
|
rma_handle%window_open = .false.
|
|
end if
|
|
if (rma_handle%window_ready) then
|
|
call mpi_win_free(rma_handle%win, iret)
|
|
rma_handle%window_ready = .false.
|
|
rma_handle%win = mpi_win_null
|
|
end if
|
|
call y%new_buffer(ione*size(comm_indexes%v), info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
end if
|
|
|
|
if ((buffer_size > 0).and.(.not. rma_handle%window_ready)) then
|
|
element_bytes = storage_size(y%combuf(1))/8
|
|
exposed_bytes = int(size(y%combuf),kind=MPI_ADDRESS_KIND) * int(element_bytes,kind=MPI_ADDRESS_KIND)
|
|
call mpi_win_create(y%combuf, exposed_bytes, element_bytes, &
|
|
& mpi_info_null, ctxt%get_mpic(), rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
rma_handle%window_ready = .true.
|
|
end if
|
|
|
|
if (buffer_size > 0) then
|
|
! Transpose: gather recv_indexes data into combuf(1:eff_send)
|
|
if (eff_send > 0) then
|
|
call y%gth(int(eff_send,psb_mpk_), rma_handle%peer_send_indexes, y%combuf(1:eff_send))
|
|
end if
|
|
call y%device_wait()
|
|
|
|
! Pull from each peer's recv_indexes area with per-neighbor passive lock (neighbor-only sync).
|
|
do neighbor_idx=1, num_neighbors
|
|
proc_to_comm = rma_handle%peer_proc(neighbor_idx)
|
|
send_count = rma_handle%peer_send_counts(neighbor_idx)
|
|
recv_count = rma_handle%peer_recv_counts(neighbor_idx)
|
|
prc_rank = rma_handle%peer_mpi_rank(neighbor_idx)
|
|
send_pos = rma_handle%peer_send_displs(neighbor_idx) + 1
|
|
recv_pos = eff_send + rma_handle%peer_recv_displs(neighbor_idx) + 1
|
|
|
|
if (proc_to_comm /= my_rank) then
|
|
remote_base = rma_handle%peer_remote_send_displs(neighbor_idx)
|
|
if (remote_base < 1) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Invalid remote metadata in RMA tran pull')
|
|
goto 9999
|
|
end if
|
|
if (recv_count > 0) then
|
|
call mpi_win_lock(MPI_LOCK_SHARED, prc_rank, 0, rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
remote_disp = int(remote_base - 1, kind=MPI_ADDRESS_KIND)
|
|
call mpi_get(y%combuf(recv_pos), recv_count, psb_mpi_r_dpk_, prc_rank, remote_disp, recv_count, psb_mpi_r_dpk_, &
|
|
& rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
call mpi_win_unlock(prc_rank, rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
end if
|
|
else
|
|
if (send_count /= recv_count) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='RMA tran pull self-copy mismatch')
|
|
goto 9999
|
|
end if
|
|
y%combuf(recv_pos:recv_pos+recv_count-1) = y%combuf(send_pos:send_pos+send_count-1)
|
|
end if
|
|
end do
|
|
end if
|
|
end if ! do_start
|
|
|
|
! WAIT phase: GETs already complete (per-neighbor unlock in START); scatter into send_indexes.
|
|
if (do_wait) then
|
|
! Transpose: scatter to send_indexes (peer_recv_indexes in tran init = actual send_indexes)
|
|
if (eff_recv > 0) then
|
|
call y%sct(int(eff_recv,psb_mpk_), rma_handle%peer_recv_indexes, y%combuf(eff_send+1:eff_send+eff_recv), beta)
|
|
end if
|
|
call y%device_wait()
|
|
end if ! do_wait
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ctxt,err_act)
|
|
return
|
|
end subroutine psi_ztran_rma_pull_vect
|
|
|
|
|
|
subroutine psi_ztran_rma_push_vect(ctxt,swap_status,beta,y,comm_indexes,num_neighbors,total_send,total_recv,comm_handle,info)
|
|
#ifdef PSB_MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef PSB_MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
type(psb_ctxt_type), intent(in) :: ctxt
|
|
integer(psb_ipk_), intent(in) :: swap_status
|
|
complex(psb_dpk_), intent(in) :: beta
|
|
class(psb_z_base_vect_type), intent(inout) :: y
|
|
class(psb_i_base_vect_type), intent(inout) :: comm_indexes
|
|
integer(psb_ipk_), intent(in) :: num_neighbors, total_send, total_recv
|
|
class(psb_comm_handle_type), intent(inout) :: comm_handle
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
integer(psb_mpk_) :: np, my_rank, iret, element_bytes, icomm
|
|
integer(psb_mpk_) :: proc_to_comm, prc_rank, recv_count, send_count, send_pos, recv_pos, list_pos
|
|
integer(psb_mpk_) :: remote_base
|
|
integer(kind=MPI_ADDRESS_KIND) :: remote_disp, exposed_bytes
|
|
integer(psb_ipk_) :: err_act, neighbor_idx, buffer_size, eff_send, eff_recv
|
|
integer(psb_ipk_), allocatable :: peer_mpi_rank(:)
|
|
integer(psb_mpk_), parameter :: rma_push_notify_tag = 914_psb_mpk_
|
|
logical :: do_start, do_wait, layout_rebuild_needed
|
|
type(psb_comm_rma_handle), pointer :: rma_handle
|
|
character(len=30) :: name
|
|
|
|
info = psb_success_
|
|
name = 'psi_ztran_rma_push_vect'
|
|
call psb_erractionsave(err_act)
|
|
call psb_info(ctxt,my_rank,np)
|
|
if (np == -1) then
|
|
info = psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
icomm = ctxt%get_mpic()
|
|
eff_send = total_recv
|
|
eff_recv = total_send
|
|
|
|
select type(ch => comm_handle)
|
|
type is(psb_comm_rma_handle)
|
|
rma_handle => ch
|
|
class default
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Expected RMA comm_handle for tran push')
|
|
goto 9999
|
|
end select
|
|
|
|
do_start = (swap_status == psb_comm_status_start_) .or. (swap_status == psb_comm_status_sync_)
|
|
do_wait = (swap_status == psb_comm_status_wait_) .or. (swap_status == psb_comm_status_sync_)
|
|
|
|
call comm_indexes%sync()
|
|
|
|
if (do_start) then
|
|
buffer_size = eff_send + eff_recv
|
|
layout_rebuild_needed = (.not. rma_handle%layout_ready) .or. &
|
|
& (rma_handle%layout_nnbr /= num_neighbors) .or. &
|
|
& (rma_handle%layout_send /= eff_send) .or. &
|
|
& (rma_handle%layout_recv /= eff_recv)
|
|
|
|
if (layout_rebuild_needed) then
|
|
if (allocated(peer_mpi_rank)) deallocate(peer_mpi_rank)
|
|
if (num_neighbors > 0) then
|
|
allocate(peer_mpi_rank(num_neighbors), stat=iret)
|
|
if (iret /= 0) then
|
|
info = psb_err_alloc_dealloc_
|
|
call psb_errpush(info,name,a_err='RMA tran push rank cache allocation')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
list_pos = 1
|
|
do neighbor_idx = 1, num_neighbors
|
|
proc_to_comm = comm_indexes%v(list_pos+psb_proc_id_)
|
|
peer_mpi_rank(neighbor_idx) = psb_get_mpi_rank(ctxt,proc_to_comm)
|
|
recv_count = comm_indexes%v(list_pos+psb_n_elem_recv_)
|
|
send_count = comm_indexes%v(list_pos+recv_count+psb_n_elem_send_)
|
|
list_pos = list_pos + recv_count + send_count + 3
|
|
end do
|
|
call rma_handle%init_memory_buffer_layout_tran(info, comm_indexes%v, peer_mpi_rank, &
|
|
& num_neighbors, total_send, total_recv, my_rank, icomm)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name,a_err='RMA tran push init_memory_buffer_layout_tran failure')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
if (buffer_size > 0) then
|
|
if (.not. allocated(y%combuf)) then
|
|
call y%new_buffer(ione*size(comm_indexes%v), info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
else if (size(y%combuf) < size(comm_indexes%v)) then
|
|
if (rma_handle%window_open) then
|
|
call mpi_win_unlock_all(rma_handle%win, iret)
|
|
rma_handle%window_open = .false.
|
|
end if
|
|
if (rma_handle%window_ready) then
|
|
call mpi_win_free(rma_handle%win, iret)
|
|
rma_handle%window_ready = .false.
|
|
rma_handle%win = mpi_win_null
|
|
end if
|
|
call y%new_buffer(ione*size(comm_indexes%v), info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
end if
|
|
|
|
if ((buffer_size > 0).and.(.not. rma_handle%window_ready)) then
|
|
element_bytes = storage_size(y%combuf(1))/8
|
|
exposed_bytes = int(size(y%combuf),kind=MPI_ADDRESS_KIND) * int(element_bytes,kind=MPI_ADDRESS_KIND)
|
|
call mpi_win_create(y%combuf, exposed_bytes, element_bytes, &
|
|
& mpi_info_null, ctxt%get_mpic(), rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
rma_handle%window_ready = .true.
|
|
end if
|
|
|
|
if (buffer_size > 0) then
|
|
! Transpose: gather recv_indexes data into combuf(1:eff_send)
|
|
if (eff_send > 0) then
|
|
call y%gth(int(eff_send,psb_mpk_), rma_handle%peer_send_indexes, y%combuf(1:eff_send))
|
|
end if
|
|
call y%device_wait()
|
|
|
|
! Pre-post notification receives before opening the window.
|
|
if (num_neighbors > 0) then
|
|
rma_handle%notify_recv_reqs(1:num_neighbors) = MPI_REQUEST_NULL
|
|
rma_handle%notify_send_reqs(1:num_neighbors) = MPI_REQUEST_NULL
|
|
end if
|
|
do neighbor_idx=1, num_neighbors
|
|
proc_to_comm = rma_handle%peer_proc(neighbor_idx)
|
|
if (proc_to_comm /= my_rank) then
|
|
prc_rank = rma_handle%peer_mpi_rank(neighbor_idx)
|
|
call mpi_irecv(rma_handle%notify_buf(neighbor_idx), 1, psb_mpi_mpk_, prc_rank, &
|
|
& rma_push_notify_tag, icomm, rma_handle%notify_recv_reqs(neighbor_idx), iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
end if
|
|
end do
|
|
|
|
call mpi_win_lock_all(0, rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
rma_handle%window_open = .true.
|
|
|
|
! Push our recv_indexes data to each peer's send_indexes area; notify after flush.
|
|
do neighbor_idx=1, num_neighbors
|
|
proc_to_comm = rma_handle%peer_proc(neighbor_idx)
|
|
send_count = rma_handle%peer_send_counts(neighbor_idx)
|
|
recv_count = rma_handle%peer_recv_counts(neighbor_idx)
|
|
prc_rank = rma_handle%peer_mpi_rank(neighbor_idx)
|
|
send_pos = rma_handle%peer_send_displs(neighbor_idx) + 1
|
|
recv_pos = eff_send + rma_handle%peer_recv_displs(neighbor_idx) + 1
|
|
|
|
if (proc_to_comm /= my_rank) then
|
|
remote_base = rma_handle%peer_remote_recv_displs(neighbor_idx)
|
|
if (remote_base < 1) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Invalid remote metadata in RMA tran push')
|
|
goto 9999
|
|
end if
|
|
if (send_count > 0) then
|
|
remote_disp = int(remote_base - 1, kind=MPI_ADDRESS_KIND)
|
|
call mpi_put(y%combuf(send_pos), send_count, psb_mpi_r_dpk_, prc_rank, remote_disp, send_count, psb_mpi_r_dpk_, &
|
|
& rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
end if
|
|
call mpi_win_flush(prc_rank, rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
call mpi_isend(rma_handle%notify_buf(neighbor_idx), 1, psb_mpi_mpk_, prc_rank, &
|
|
& rma_push_notify_tag, icomm, rma_handle%notify_send_reqs(neighbor_idx), iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
else
|
|
if (send_count /= recv_count) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='RMA tran push self-copy mismatch')
|
|
goto 9999
|
|
end if
|
|
y%combuf(recv_pos:recv_pos+recv_count-1) = y%combuf(send_pos:send_pos+send_count-1)
|
|
end if
|
|
end do
|
|
end if
|
|
end if ! do_start
|
|
|
|
! WAIT phase: close epoch, wait for P2P notifications, then scatter into send_indexes.
|
|
if (do_wait) then
|
|
if (rma_handle%window_open) then
|
|
call mpi_win_unlock_all(rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
rma_handle%window_open = .false.
|
|
end if
|
|
if (num_neighbors > 0) then
|
|
call mpi_waitall(num_neighbors, rma_handle%notify_recv_reqs, MPI_STATUSES_IGNORE, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
call mpi_waitall(num_neighbors, rma_handle%notify_send_reqs, MPI_STATUSES_IGNORE, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
end if
|
|
! Transpose: scatter to send_indexes (peer_recv_indexes in tran init = actual send_indexes)
|
|
if (eff_recv > 0) then
|
|
call y%sct(int(eff_recv,psb_mpk_), rma_handle%peer_recv_indexes, y%combuf(eff_send+1:eff_send+eff_recv), beta)
|
|
end if
|
|
call y%device_wait()
|
|
end if ! do_wait
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ctxt,err_act)
|
|
return
|
|
end subroutine psi_ztran_rma_push_vect
|
|
|
|
|
|
subroutine psi_ztran_neighbor_persistent_topology_multivect(ctxt,swap_status,beta,y,comm_indexes,&
|
|
& num_neighbors,total_send,total_recv,comm_handle,info)
|
|
#ifdef PSB_MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef PSB_MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
type(psb_ctxt_type), intent(in) :: ctxt
|
|
integer(psb_ipk_), intent(in) :: swap_status
|
|
complex(psb_dpk_), intent(in) :: beta
|
|
class(psb_z_base_multivect_type), intent(inout) :: y
|
|
class(psb_i_base_vect_type), intent(inout) :: comm_indexes
|
|
integer(psb_ipk_), intent(in) :: num_neighbors,total_send,total_recv
|
|
class(psb_comm_handle_type), intent(inout) :: comm_handle
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
integer(psb_mpk_) :: icomm, np, my_rank, iret, n
|
|
integer(psb_mpk_) :: p2pstat(mpi_status_size)
|
|
type(psb_comm_neighbor_handle), pointer :: neighbor_comm_handle
|
|
integer(psb_ipk_) :: err_act, topology_total_send, topology_total_recv, buffer_size
|
|
integer(psb_mpk_) :: total_send_, total_recv_
|
|
logical :: do_start, do_wait
|
|
logical, parameter :: debug = .false.
|
|
character(len=30) :: name
|
|
|
|
info = psb_success_
|
|
name = 'psi_ztran_neighbor_persistent_topology_multivect'
|
|
call psb_erractionsave(err_act)
|
|
call psb_info(ctxt,my_rank,np)
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
icomm = ctxt%get_mpic()
|
|
n = y%get_ncols()
|
|
|
|
neighbor_comm_handle => null()
|
|
select type(ch => comm_handle)
|
|
type is(psb_comm_neighbor_handle)
|
|
neighbor_comm_handle => ch
|
|
class default
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Expected neighbor comm_handle in persistent neighbor multivect swaptran')
|
|
goto 9999
|
|
end select
|
|
|
|
if (swap_status == psb_comm_status_unknown_) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='psb_comm_status_unknown_ not allowed in persistent neighbor multivect swaptran')
|
|
goto 9999
|
|
end if
|
|
|
|
do_start = (swap_status == psb_comm_status_start_) .or. (swap_status == psb_comm_status_sync_)
|
|
do_wait = (swap_status == psb_comm_status_wait_) .or. (swap_status == psb_comm_status_sync_)
|
|
|
|
call comm_indexes%sync()
|
|
|
|
if (do_start) then
|
|
if (neighbor_comm_handle%persistent_in_flight) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Invalid START: persistent neighbor request already in flight')
|
|
goto 9999
|
|
end if
|
|
if (.not. neighbor_comm_handle%is_initialized) then
|
|
call neighbor_comm_handle%topology_init(comm_indexes%v, num_neighbors, total_send, total_recv, ctxt, icomm, info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_, name, a_err='neighbor_topology_init')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
topology_total_send = neighbor_comm_handle%total_send
|
|
topology_total_recv = neighbor_comm_handle%total_recv
|
|
total_send_ = topology_total_send * n
|
|
total_recv_ = topology_total_recv * n
|
|
buffer_size = total_send_ + total_recv_
|
|
|
|
if (buffer_size > 0) then
|
|
if (.not. allocated(y%combuf)) then
|
|
if (neighbor_comm_handle%persistent_request_ready) then
|
|
if (neighbor_comm_handle%persistent_request /= mpi_request_null) then
|
|
call mpi_request_free(neighbor_comm_handle%persistent_request, iret)
|
|
end if
|
|
neighbor_comm_handle%persistent_request = mpi_request_null
|
|
neighbor_comm_handle%persistent_request_ready = .false.
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
neighbor_comm_handle%persistent_buffer_size = 0
|
|
end if
|
|
call y%new_buffer(buffer_size, info)
|
|
if (info /= 0) then
|
|
call psb_errpush(psb_err_alloc_dealloc_, name)
|
|
goto 9999
|
|
end if
|
|
else if (size(y%combuf) < buffer_size) then
|
|
if (neighbor_comm_handle%persistent_request_ready) then
|
|
if (neighbor_comm_handle%persistent_request /= mpi_request_null) then
|
|
call mpi_request_free(neighbor_comm_handle%persistent_request, iret)
|
|
end if
|
|
neighbor_comm_handle%persistent_request = mpi_request_null
|
|
neighbor_comm_handle%persistent_request_ready = .false.
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
neighbor_comm_handle%persistent_buffer_size = 0
|
|
end if
|
|
call y%new_buffer(buffer_size, info)
|
|
if (info /= 0) then
|
|
call psb_errpush(psb_err_alloc_dealloc_, name)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
end if
|
|
neighbor_comm_handle%comm_request = mpi_request_null
|
|
|
|
if (buffer_size > 0) then
|
|
! Transpose: gather from recv_indexes
|
|
if (debug) write(*,*) my_rank,' tran_persistent_mv: gathering recv data,',topology_total_recv,' elems'
|
|
call y%gth(int(topology_total_recv,psb_mpk_), &
|
|
& neighbor_comm_handle%recv_indexes, &
|
|
& y%combuf(1:total_recv_))
|
|
else
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
end if
|
|
|
|
call y%device_wait()
|
|
|
|
if (.not. neighbor_comm_handle%persistent_request_ready) then
|
|
if (buffer_size > 0) then
|
|
! Transpose: swap send/recv in alltoallv_init
|
|
call mpi_neighbor_alltoallv_init( &
|
|
& y%combuf(1), &
|
|
& n*neighbor_comm_handle%recv_counts, &
|
|
& n*neighbor_comm_handle%recv_displs, &
|
|
& psb_mpi_c_dpk_, &
|
|
& y%combuf(total_recv_ + 1), &
|
|
& n*neighbor_comm_handle%send_counts, &
|
|
& n*neighbor_comm_handle%send_displs, &
|
|
& psb_mpi_c_dpk_, &
|
|
& neighbor_comm_handle%graph_comm, &
|
|
& mpi_info_null, &
|
|
& neighbor_comm_handle%persistent_request, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
neighbor_comm_handle%persistent_request_ready = .true.
|
|
neighbor_comm_handle%persistent_buffer_size = buffer_size
|
|
else
|
|
neighbor_comm_handle%persistent_request_ready = .false.
|
|
neighbor_comm_handle%persistent_buffer_size = 0
|
|
end if
|
|
end if
|
|
|
|
if (buffer_size > 0) then
|
|
call mpi_start(neighbor_comm_handle%persistent_request, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
neighbor_comm_handle%persistent_in_flight = .true.
|
|
else
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
end if
|
|
end if ! do_start
|
|
|
|
if (do_wait) then
|
|
topology_total_send = neighbor_comm_handle%total_send
|
|
topology_total_recv = neighbor_comm_handle%total_recv
|
|
total_send_ = topology_total_send * n
|
|
total_recv_ = topology_total_recv * n
|
|
|
|
if ((topology_total_send + topology_total_recv) == 0) then
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
else
|
|
if (.not. neighbor_comm_handle%persistent_in_flight) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, a_err='Invalid WAIT: no persistent neighbor request in flight')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
if ((topology_total_send + topology_total_recv) > 0) then
|
|
call mpi_wait(neighbor_comm_handle%persistent_request, p2pstat, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info, name, m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
neighbor_comm_handle%persistent_in_flight = .false.
|
|
|
|
! Transpose: scatter to send_indexes
|
|
if (debug) write(*,*) my_rank,' tran_persistent_mv: scattering to send_indexes,',topology_total_send,' elems'
|
|
call y%sct(int(topology_total_send,psb_mpk_), &
|
|
& neighbor_comm_handle%send_indexes, &
|
|
& y%combuf(total_recv_+1:total_recv_+total_send_), &
|
|
& beta)
|
|
end if
|
|
|
|
call y%device_wait()
|
|
end if ! do_wait
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ctxt,err_act)
|
|
return
|
|
end subroutine psi_ztran_neighbor_persistent_topology_multivect
|
|
|
|
|
|
subroutine psi_ztran_rma_pull_multivect(ctxt,swap_status,beta,y,comm_indexes,num_neighbors,total_send,total_recv,comm_handle,info)
|
|
#ifdef PSB_MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef PSB_MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
type(psb_ctxt_type), intent(in) :: ctxt
|
|
integer(psb_ipk_), intent(in) :: swap_status
|
|
complex(psb_dpk_), intent(in) :: beta
|
|
class(psb_z_base_multivect_type), intent(inout) :: y
|
|
class(psb_i_base_vect_type), intent(inout) :: comm_indexes
|
|
integer(psb_ipk_), intent(in) :: num_neighbors, total_send, total_recv
|
|
class(psb_comm_handle_type), intent(inout) :: comm_handle
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
integer(psb_mpk_) :: np, my_rank, iret, element_bytes, icomm, n
|
|
integer(psb_mpk_) :: proc_to_comm, prc_rank, recv_count, send_count, send_pos, recv_pos, list_pos
|
|
integer(psb_mpk_) :: remote_base
|
|
integer(kind=MPI_ADDRESS_KIND) :: remote_disp, exposed_bytes
|
|
integer(psb_ipk_) :: err_act, neighbor_idx, buffer_size, eff_send, eff_recv, total_eff_send_, total_eff_recv_
|
|
integer(psb_ipk_), allocatable :: peer_mpi_rank(:)
|
|
logical :: do_start, do_wait, layout_rebuild_needed
|
|
type(psb_comm_rma_handle), pointer :: rma_handle
|
|
character(len=30) :: name
|
|
|
|
info = psb_success_
|
|
name = 'psi_ztran_rma_pull_multivect'
|
|
call psb_erractionsave(err_act)
|
|
call psb_info(ctxt,my_rank,np)
|
|
if (np == -1) then
|
|
info = psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
icomm = ctxt%get_mpic()
|
|
n = y%get_ncols()
|
|
eff_send = total_recv
|
|
eff_recv = total_send
|
|
total_eff_send_ = eff_send * n
|
|
total_eff_recv_ = eff_recv * n
|
|
|
|
select type(ch => comm_handle)
|
|
type is(psb_comm_rma_handle)
|
|
rma_handle => ch
|
|
class default
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Expected RMA comm_handle for tran pull multivect')
|
|
goto 9999
|
|
end select
|
|
|
|
do_start = (swap_status == psb_comm_status_start_) .or. (swap_status == psb_comm_status_sync_)
|
|
do_wait = (swap_status == psb_comm_status_wait_) .or. (swap_status == psb_comm_status_sync_)
|
|
|
|
call comm_indexes%sync()
|
|
|
|
if (do_start) then
|
|
buffer_size = total_eff_send_ + total_eff_recv_
|
|
layout_rebuild_needed = (.not. rma_handle%layout_ready) .or. &
|
|
& (rma_handle%layout_nnbr /= num_neighbors) .or. &
|
|
& (rma_handle%layout_send /= eff_send) .or. &
|
|
& (rma_handle%layout_recv /= eff_recv)
|
|
|
|
if (layout_rebuild_needed) then
|
|
if (allocated(peer_mpi_rank)) deallocate(peer_mpi_rank)
|
|
if (num_neighbors > 0) then
|
|
allocate(peer_mpi_rank(num_neighbors), stat=iret)
|
|
if (iret /= 0) then
|
|
info = psb_err_alloc_dealloc_
|
|
call psb_errpush(info,name,a_err='RMA tran pull multivect rank allocation')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
list_pos = 1
|
|
do neighbor_idx = 1, num_neighbors
|
|
proc_to_comm = comm_indexes%v(list_pos+psb_proc_id_)
|
|
peer_mpi_rank(neighbor_idx) = psb_get_mpi_rank(ctxt,proc_to_comm)
|
|
recv_count = comm_indexes%v(list_pos+psb_n_elem_recv_)
|
|
send_count = comm_indexes%v(list_pos+recv_count+psb_n_elem_send_)
|
|
list_pos = list_pos + recv_count + send_count + 3
|
|
end do
|
|
call rma_handle%init_memory_buffer_layout_tran(info, comm_indexes%v, peer_mpi_rank, &
|
|
& num_neighbors, total_send, total_recv, my_rank, icomm)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name,a_err='RMA tran pull multivect init_memory_buffer_layout_tran')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
if (buffer_size > 0) then
|
|
if (.not. allocated(y%combuf)) then
|
|
call y%new_buffer(buffer_size, info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
else if (size(y%combuf) < buffer_size) then
|
|
if (rma_handle%window_open) then
|
|
call mpi_win_unlock_all(rma_handle%win, iret)
|
|
rma_handle%window_open = .false.
|
|
end if
|
|
if (rma_handle%window_ready) then
|
|
call mpi_win_free(rma_handle%win, iret)
|
|
rma_handle%window_ready = .false.
|
|
rma_handle%win = mpi_win_null
|
|
end if
|
|
call y%new_buffer(buffer_size, info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
end if
|
|
|
|
if ((buffer_size > 0).and.(.not. rma_handle%window_ready)) then
|
|
element_bytes = storage_size(y%combuf(1))/8
|
|
exposed_bytes = int(size(y%combuf),kind=MPI_ADDRESS_KIND) * int(element_bytes,kind=MPI_ADDRESS_KIND)
|
|
call mpi_win_create(y%combuf, exposed_bytes, element_bytes, &
|
|
& mpi_info_null, ctxt%get_mpic(), rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
rma_handle%window_ready = .true.
|
|
end if
|
|
|
|
if (buffer_size > 0) then
|
|
if (eff_send > 0) then
|
|
call y%gth(int(eff_send,psb_mpk_), rma_handle%peer_send_indexes, y%combuf(1:total_eff_send_))
|
|
end if
|
|
call y%device_wait()
|
|
|
|
! Pull from each peer's recv_indexes area with per-neighbor passive lock (neighbor-only sync).
|
|
do neighbor_idx=1, num_neighbors
|
|
proc_to_comm = rma_handle%peer_proc(neighbor_idx)
|
|
send_count = rma_handle%peer_send_counts(neighbor_idx)
|
|
recv_count = rma_handle%peer_recv_counts(neighbor_idx)
|
|
prc_rank = rma_handle%peer_mpi_rank(neighbor_idx)
|
|
send_pos = rma_handle%peer_send_displs(neighbor_idx)*n + 1
|
|
recv_pos = total_eff_send_ + rma_handle%peer_recv_displs(neighbor_idx)*n + 1
|
|
|
|
if (proc_to_comm /= my_rank) then
|
|
remote_base = rma_handle%peer_remote_send_displs(neighbor_idx)
|
|
if (remote_base < 1) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Invalid remote metadata in RMA tran pull multivect')
|
|
goto 9999
|
|
end if
|
|
if (recv_count > 0) then
|
|
call mpi_win_lock(MPI_LOCK_SHARED, prc_rank, 0, rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
remote_disp = int((remote_base - 1)*n, kind=MPI_ADDRESS_KIND)
|
|
call mpi_get(y%combuf(recv_pos), recv_count*n, psb_mpi_r_dpk_, prc_rank, remote_disp, recv_count*n, psb_mpi_r_dpk_, &
|
|
& rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
call mpi_win_unlock(prc_rank, rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
end if
|
|
else
|
|
if (send_count /= recv_count) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='RMA tran pull multivect self-copy mismatch')
|
|
goto 9999
|
|
end if
|
|
y%combuf(recv_pos:recv_pos+recv_count*n-1) = y%combuf(send_pos:send_pos+send_count*n-1)
|
|
end if
|
|
end do
|
|
end if
|
|
end if ! do_start
|
|
|
|
! WAIT phase: GETs already complete (per-neighbor unlock in START); scatter into send_indexes.
|
|
if (do_wait) then
|
|
if (eff_recv > 0) then
|
|
call y%sct(int(eff_recv,psb_mpk_), rma_handle%peer_recv_indexes, &
|
|
& y%combuf(total_eff_send_+1:total_eff_send_+total_eff_recv_), beta)
|
|
end if
|
|
call y%device_wait()
|
|
end if ! do_wait
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ctxt,err_act)
|
|
return
|
|
end subroutine psi_ztran_rma_pull_multivect
|
|
|
|
|
|
subroutine psi_ztran_rma_push_multivect(ctxt,swap_status,beta,y,comm_indexes,num_neighbors,total_send,total_recv,comm_handle,info)
|
|
#ifdef PSB_MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef PSB_MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
type(psb_ctxt_type), intent(in) :: ctxt
|
|
integer(psb_ipk_), intent(in) :: swap_status
|
|
complex(psb_dpk_), intent(in) :: beta
|
|
class(psb_z_base_multivect_type), intent(inout) :: y
|
|
class(psb_i_base_vect_type), intent(inout) :: comm_indexes
|
|
integer(psb_ipk_), intent(in) :: num_neighbors, total_send, total_recv
|
|
class(psb_comm_handle_type), intent(inout) :: comm_handle
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
integer(psb_mpk_) :: np, my_rank, iret, element_bytes, icomm, n
|
|
integer(psb_mpk_) :: proc_to_comm, prc_rank, recv_count, send_count, send_pos, recv_pos, list_pos
|
|
integer(psb_mpk_) :: remote_base
|
|
integer(kind=MPI_ADDRESS_KIND) :: remote_disp, exposed_bytes
|
|
integer(psb_ipk_) :: err_act, neighbor_idx, buffer_size, eff_send, eff_recv, total_eff_send_, total_eff_recv_
|
|
integer(psb_ipk_), allocatable :: peer_mpi_rank(:)
|
|
integer(psb_mpk_), parameter :: rma_push_notify_tag = 914_psb_mpk_
|
|
logical :: do_start, do_wait, layout_rebuild_needed
|
|
type(psb_comm_rma_handle), pointer :: rma_handle
|
|
character(len=30) :: name
|
|
|
|
info = psb_success_
|
|
name = 'psi_ztran_rma_push_multivect'
|
|
call psb_erractionsave(err_act)
|
|
call psb_info(ctxt,my_rank,np)
|
|
if (np == -1) then
|
|
info = psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
icomm = ctxt%get_mpic()
|
|
n = y%get_ncols()
|
|
eff_send = total_recv
|
|
eff_recv = total_send
|
|
total_eff_send_ = eff_send * n
|
|
total_eff_recv_ = eff_recv * n
|
|
|
|
select type(ch => comm_handle)
|
|
type is(psb_comm_rma_handle)
|
|
rma_handle => ch
|
|
class default
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,a_err='Expected RMA comm_handle for tran push multivect')
|
|
goto 9999
|
|
end select
|
|
|
|
do_start = (swap_status == psb_comm_status_start_) .or. (swap_status == psb_comm_status_sync_)
|
|
do_wait = (swap_status == psb_comm_status_wait_) .or. (swap_status == psb_comm_status_sync_)
|
|
|
|
call comm_indexes%sync()
|
|
|
|
if (do_start) then
|
|
buffer_size = total_eff_send_ + total_eff_recv_
|
|
layout_rebuild_needed = (.not. rma_handle%layout_ready) .or. &
|
|
& (rma_handle%layout_nnbr /= num_neighbors) .or. &
|
|
& (rma_handle%layout_send /= eff_send) .or. &
|
|
& (rma_handle%layout_recv /= eff_recv)
|
|
|
|
if (layout_rebuild_needed) then
|
|
if (allocated(peer_mpi_rank)) deallocate(peer_mpi_rank)
|
|
if (num_neighbors > 0) then
|
|
allocate(peer_mpi_rank(num_neighbors), stat=iret)
|
|
if (iret /= 0) then
|
|
info = psb_err_alloc_dealloc_
|
|
call psb_errpush(info,name,a_err='RMA tran push multivect rank allocation')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
list_pos = 1
|
|
do neighbor_idx = 1, num_neighbors
|
|
proc_to_comm = comm_indexes%v(list_pos+psb_proc_id_)
|
|
peer_mpi_rank(neighbor_idx) = psb_get_mpi_rank(ctxt,proc_to_comm)
|
|
recv_count = comm_indexes%v(list_pos+psb_n_elem_recv_)
|
|
send_count = comm_indexes%v(list_pos+recv_count+psb_n_elem_send_)
|
|
list_pos = list_pos + recv_count + send_count + 3
|
|
end do
|
|
call rma_handle%init_memory_buffer_layout_tran(info, comm_indexes%v, peer_mpi_rank, &
|
|
& num_neighbors, total_send, total_recv, my_rank, icomm)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(info,name,a_err='RMA tran push multivect init_memory_buffer_layout_tran')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
if (buffer_size > 0) then
|
|
if (.not. allocated(y%combuf)) then
|
|
call y%new_buffer(buffer_size, info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
else if (size(y%combuf) < buffer_size) then
|
|
if (rma_handle%window_open) then
|
|
call mpi_win_unlock_all(rma_handle%win, iret)
|
|
rma_handle%window_open = .false.
|
|
end if
|
|
if (rma_handle%window_ready) then
|
|
call mpi_win_free(rma_handle%win, iret)
|
|
rma_handle%window_ready = .false.
|
|
rma_handle%win = mpi_win_null
|
|
end if
|
|
call y%new_buffer(buffer_size, info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_alloc_dealloc_,name)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
end if
|
|
|
|
if ((buffer_size > 0).and.(.not. rma_handle%window_ready)) then
|
|
element_bytes = storage_size(y%combuf(1))/8
|
|
exposed_bytes = int(size(y%combuf),kind=MPI_ADDRESS_KIND) * int(element_bytes,kind=MPI_ADDRESS_KIND)
|
|
call mpi_win_create(y%combuf, exposed_bytes, element_bytes, &
|
|
& mpi_info_null, ctxt%get_mpic(), rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
rma_handle%window_ready = .true.
|
|
end if
|
|
|
|
if (buffer_size > 0) then
|
|
if (eff_send > 0) then
|
|
call y%gth(int(eff_send,psb_mpk_), rma_handle%peer_send_indexes, y%combuf(1:total_eff_send_))
|
|
end if
|
|
call y%device_wait()
|
|
|
|
! Pre-post notification receives before opening the window.
|
|
if (num_neighbors > 0) then
|
|
rma_handle%notify_recv_reqs(1:num_neighbors) = MPI_REQUEST_NULL
|
|
rma_handle%notify_send_reqs(1:num_neighbors) = MPI_REQUEST_NULL
|
|
end if
|
|
do neighbor_idx=1, num_neighbors
|
|
proc_to_comm = rma_handle%peer_proc(neighbor_idx)
|
|
if (proc_to_comm /= my_rank) then
|
|
prc_rank = rma_handle%peer_mpi_rank(neighbor_idx)
|
|
call mpi_irecv(rma_handle%notify_buf(neighbor_idx), 1, psb_mpi_mpk_, prc_rank, &
|
|
& rma_push_notify_tag, icomm, rma_handle%notify_recv_reqs(neighbor_idx), iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
end if
|
|
end do
|
|
|
|
call mpi_win_lock_all(0, rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
rma_handle%window_open = .true.
|
|
|
|
do neighbor_idx=1, num_neighbors
|
|
proc_to_comm = rma_handle%peer_proc(neighbor_idx)
|
|
send_count = rma_handle%peer_send_counts(neighbor_idx)
|
|
recv_count = rma_handle%peer_recv_counts(neighbor_idx)
|
|
prc_rank = rma_handle%peer_mpi_rank(neighbor_idx)
|
|
send_pos = rma_handle%peer_send_displs(neighbor_idx)*n + 1
|
|
recv_pos = total_eff_send_ + rma_handle%peer_recv_displs(neighbor_idx)*n + 1
|
|
|
|
if (proc_to_comm /= my_rank) then
|
|
remote_base = rma_handle%peer_remote_recv_displs(neighbor_idx)
|
|
if (remote_base < 1) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Invalid remote metadata in RMA tran push multivect')
|
|
goto 9999
|
|
end if
|
|
if (send_count > 0) then
|
|
remote_disp = int((remote_base - 1)*n, kind=MPI_ADDRESS_KIND)
|
|
call mpi_put(y%combuf(send_pos), send_count*n, psb_mpi_r_dpk_, prc_rank, remote_disp, send_count*n, psb_mpi_r_dpk_, &
|
|
& rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
end if
|
|
call mpi_win_flush(prc_rank, rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
call mpi_isend(rma_handle%notify_buf(neighbor_idx), 1, psb_mpi_mpk_, prc_rank, &
|
|
& rma_push_notify_tag, icomm, rma_handle%notify_send_reqs(neighbor_idx), iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
else
|
|
if (send_count /= recv_count) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='RMA tran push multivect self-copy mismatch')
|
|
goto 9999
|
|
end if
|
|
y%combuf(recv_pos:recv_pos+recv_count*n-1) = y%combuf(send_pos:send_pos+send_count*n-1)
|
|
end if
|
|
end do
|
|
end if
|
|
end if ! do_start
|
|
|
|
! WAIT phase: close epoch, wait for P2P notifications, then scatter into send_indexes.
|
|
if (do_wait) then
|
|
if (rma_handle%window_open) then
|
|
call mpi_win_unlock_all(rma_handle%win, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
rma_handle%window_open = .false.
|
|
end if
|
|
if (num_neighbors > 0) then
|
|
call mpi_waitall(num_neighbors, rma_handle%notify_recv_reqs, MPI_STATUSES_IGNORE, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
call mpi_waitall(num_neighbors, rma_handle%notify_send_reqs, MPI_STATUSES_IGNORE, iret)
|
|
if (iret /= mpi_success) then
|
|
info = psb_err_mpi_error_
|
|
call psb_errpush(info,name,m_err=(/iret/))
|
|
goto 9999
|
|
end if
|
|
end if
|
|
if (eff_recv > 0) then
|
|
call y%sct(int(eff_recv,psb_mpk_), rma_handle%peer_recv_indexes, &
|
|
& y%combuf(total_eff_send_+1:total_eff_send_+total_eff_recv_), beta)
|
|
end if
|
|
call y%device_wait()
|
|
end if ! do_wait
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ctxt,err_act)
|
|
return
|
|
end subroutine psi_ztran_rma_push_multivect
|
|
|
|
|
|
end submodule psi_z_swaptran_impl
|