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753 lines
21 KiB
Fortran
753 lines
21 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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module psi_penv_mod
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use psb_const_mod
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use psi_comm_buffers_mod, only : psb_buffer_queue
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interface psb_init
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module procedure psb_init_mpik
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end interface
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interface psb_exit
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module procedure psb_exit_mpik
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end interface
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interface psb_abort
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module procedure psb_abort_mpik
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end interface
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interface psb_info
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module procedure psb_info_mpik
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end interface
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interface psb_barrier
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module procedure psb_barrier_mpik
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end interface
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interface psb_init
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module procedure psb_init_epk
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end interface
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interface psb_exit
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module procedure psb_exit_epk
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end interface
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interface psb_abort
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module procedure psb_abort_epk
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end interface
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interface psb_info
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module procedure psb_info_epk
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end interface
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interface psb_barrier
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module procedure psb_barrier_epk
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end interface
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interface psb_wtime
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module procedure psb_wtime
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end interface
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#if defined(SERIAL_MPI)
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integer(psb_mpk_), private, save :: nctxt=0
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#else
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integer(psb_mpk_), save :: mpi_iamx_op, mpi_iamn_op
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integer(psb_mpk_), save :: mpi_mamx_op, mpi_mamn_op
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integer(psb_mpk_), save :: mpi_eamx_op, mpi_eamn_op
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integer(psb_mpk_), save :: mpi_samx_op, mpi_samn_op
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integer(psb_mpk_), save :: mpi_damx_op, mpi_damn_op
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integer(psb_mpk_), save :: mpi_camx_op, mpi_camn_op
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integer(psb_mpk_), save :: mpi_zamx_op, mpi_zamn_op
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integer(psb_mpk_), save :: mpi_snrm2_op, mpi_dnrm2_op
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type(psb_buffer_queue), save :: psb_mesg_queue
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#endif
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private :: psi_get_sizes, psi_register_mpi_extras
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private :: psi_iamx_op, psi_iamn_op
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private :: psi_mamx_op, psi_mamn_op
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private :: psi_eamx_op, psi_eamn_op
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private :: psi_samx_op, psi_samn_op
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private :: psi_damx_op, psi_damn_op
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private :: psi_camx_op, psi_camn_op
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private :: psi_zamx_op, psi_zamn_op
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private :: psi_snrm2_op, psi_dnrm2_op
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contains
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! !!!!!!!!!!!!!!!!!!!!!!
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!
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! Environment handling
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!
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! !!!!!!!!!!!!!!!!!!!!!!
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subroutine psi_get_sizes()
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use psb_const_mod
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real(psb_dpk_) :: dv(2)
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real(psb_spk_) :: sv(2)
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integer(psb_i2pk_):: i2v(2)
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integer(psb_mpk_) :: mv(2)
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integer(psb_ipk_) :: iv(2)
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integer(psb_lpk_) :: lv(2)
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integer(psb_epk_) :: ev(2)
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call psi_c_diffadd(sv(1),sv(2),psb_sizeof_sp)
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call psi_c_diffadd(dv(1),dv(2),psb_sizeof_dp)
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call psi_c_diffadd(i2v(1),i2v(2),psb_sizeof_i2p)
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call psi_c_diffadd(mv(1),mv(2),psb_sizeof_mp)
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call psi_c_diffadd(iv(1),iv(2),psb_sizeof_ip)
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call psi_c_diffadd(lv(1),lv(2),psb_sizeof_lp)
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call psi_c_diffadd(ev(1),ev(2),psb_sizeof_ep)
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end subroutine psi_get_sizes
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subroutine psi_register_mpi_extras(info)
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#ifdef MPI_MOD
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use mpi
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#endif
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implicit none
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#ifdef MPI_H
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include 'mpif.h'
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#endif
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integer(psb_mpk_) :: info
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info = 0
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#if 0
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if (info == 0) call mpi_type_create_f90_integer(psb_ipk_, psb_mpi_ipk_ ,info)
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if (info == 0) call mpi_type_create_f90_integer(psb_lpk_, psb_mpi_lpk_ ,info)
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if (info == 0) call mpi_type_create_f90_integer(psb_mpk_, psb_mpi_mpk_ ,info)
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if (info == 0) call mpi_type_create_f90_integer(psb_epk_, psb_mpi_lpk_ ,info)
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if (info == 0) call mpi_type_create_f90_real(psb_spk_p_,psb_spk_r_, psb_mpi_r_spk_,info)
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if (info == 0) call mpi_type_create_f90_real(psb_dpk_p_,psb_dpk_r_, psb_mpi_r_dpk_,info)
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if (info == 0) call mpi_type_create_f90_complex(psb_spk_p_,psb_spk_r_, psb_mpi_c_spk_,info)
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if (info == 0) call mpi_type_create_f90_complex(psb_dpk_p_,psb_dpk_r_, psb_mpi_c_dpk_,info)
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#else
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#if defined(IPK4) && defined(LPK4)
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psb_mpi_ipk_ = mpi_integer4
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psb_mpi_lpk_ = mpi_integer4
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#elif defined(IPK4) && defined(LPK8)
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psb_mpi_ipk_ = mpi_integer4
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psb_mpi_lpk_ = mpi_integer8
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#elif defined(IPK8) && defined(LPK8)
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psb_mpi_ipk_ = mpi_integer8
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psb_mpi_lpk_ = mpi_integer8
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#else
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! This should never happen
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write(psb_err_unit,*) 'Warning: an impossible IPK/LPK combination.'
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write(psb_err_unit,*) 'Something went wrong at configuration time.'
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psb_mpi_ipk_ = -1
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psb_mpi_lpk_ = -1
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#endif
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psb_mpi_i2pk_ = mpi_integer2
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psb_mpi_mpk_ = mpi_integer4
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psb_mpi_epk_ = mpi_integer8
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psb_mpi_r_spk_ = mpi_real
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psb_mpi_r_dpk_ = mpi_double_precision
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psb_mpi_c_spk_ = mpi_complex
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psb_mpi_c_dpk_ = mpi_double_complex
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#endif
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#if defined(SERIAL_MPI)
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#else
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if (info == 0) call mpi_op_create(psi_mamx_op,.true.,mpi_mamx_op,info)
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if (info == 0) call mpi_op_create(psi_mamn_op,.true.,mpi_mamn_op,info)
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if (info == 0) call mpi_op_create(psi_eamx_op,.true.,mpi_eamx_op,info)
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if (info == 0) call mpi_op_create(psi_eamn_op,.true.,mpi_eamn_op,info)
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if (info == 0) call mpi_op_create(psi_samx_op,.true.,mpi_samx_op,info)
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if (info == 0) call mpi_op_create(psi_samn_op,.true.,mpi_samn_op,info)
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if (info == 0) call mpi_op_create(psi_damx_op,.true.,mpi_damx_op,info)
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if (info == 0) call mpi_op_create(psi_damn_op,.true.,mpi_damn_op,info)
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if (info == 0) call mpi_op_create(psi_camx_op,.true.,mpi_camx_op,info)
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if (info == 0) call mpi_op_create(psi_camn_op,.true.,mpi_camn_op,info)
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if (info == 0) call mpi_op_create(psi_zamx_op,.true.,mpi_zamx_op,info)
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if (info == 0) call mpi_op_create(psi_zamn_op,.true.,mpi_zamn_op,info)
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if (info == 0) call mpi_op_create(psi_snrm2_op,.true.,mpi_snrm2_op,info)
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if (info == 0) call mpi_op_create(psi_dnrm2_op,.true.,mpi_dnrm2_op,info)
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#endif
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end subroutine psi_register_mpi_extras
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subroutine psb_init_epk(ictxt,np,basectxt,ids)
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integer(psb_epk_), intent(out) :: ictxt
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integer(psb_epk_), intent(in), optional :: np, basectxt, ids(:)
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integer(psb_mpk_) :: iictxt
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integer(psb_mpk_) :: inp, ibasectxt
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integer(psb_mpk_), allocatable :: ids_(:)
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if (present(ids)) then
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allocate(ids_(size(ids)))
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ids_ = ids
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else
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allocate(ids_(0))
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end if
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if (present(np).and.present(basectxt)) then
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inp = np
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ibasectxt = basectxt
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call psb_init(iictxt,np=inp,basectxt=ibasectxt,ids=ids_)
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else if (present(np)) then
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inp = np
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call psb_init(iictxt,np=inp,ids=ids_)
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else if (present(basectxt)) then
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ibasectxt = basectxt
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call psb_init(iictxt,basectxt=ibasectxt,ids=ids_)
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else
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call psb_init(iictxt,ids=ids_)
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end if
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ictxt = iictxt
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end subroutine psb_init_epk
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subroutine psb_exit_epk(ictxt,close)
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integer(psb_epk_), intent(inout) :: ictxt
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logical, intent(in), optional :: close
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integer(psb_mpk_) :: iictxt
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iictxt = ictxt
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call psb_exit(iictxt, close)
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end subroutine psb_exit_epk
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subroutine psb_barrier_epk(ictxt)
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integer(psb_epk_), intent(in) :: ictxt
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integer(psb_mpk_) :: iictxt
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iictxt = ictxt
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call psb_barrier(iictxt)
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end subroutine psb_barrier_epk
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subroutine psb_abort_epk(ictxt,errc)
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integer(psb_epk_), intent(in) :: ictxt
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integer(psb_epk_), intent(in), optional :: errc
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integer(psb_mpk_) :: iictxt, ierrc
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iictxt = ictxt
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if (present(errc)) then
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ierrc = errc
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call psb_abort(iictxt,ierrc)
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else
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call psb_abort(iictxt)
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end if
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end subroutine psb_abort_epk
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subroutine psb_info_epk(ictxt,iam,np)
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integer(psb_epk_), intent(in) :: ictxt
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integer(psb_epk_), intent(out) :: iam, np
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!
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! Simple caching scheme, keep track
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! of the last CTXT encountered.
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!
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integer(psb_mpk_), save :: lctxt=-1, lam, lnp
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if (ictxt /= lctxt) then
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lctxt = ictxt
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call psb_info(lctxt,lam,lnp)
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end if
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iam = lam
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np = lnp
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end subroutine psb_info_epk
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subroutine psb_init_mpik(ictxt,np,basectxt,ids)
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use psi_comm_buffers_mod
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use psb_const_mod
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use psb_error_mod
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use psb_mat_mod
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use psb_vect_mod
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! !$ use psb_rsb_mod
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#ifdef MPI_MOD
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use mpi
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#endif
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implicit none
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#ifdef MPI_H
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include 'mpif.h'
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#endif
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integer(psb_mpk_), intent(out) :: ictxt
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integer(psb_mpk_), intent(in), optional :: np, basectxt, ids(:)
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integer(psb_mpk_) :: i, isnullcomm
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integer(psb_mpk_), allocatable :: iids(:)
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logical :: initialized
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integer(psb_mpk_) :: np_, npavail, iam, info, basecomm, basegroup, newgroup
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character(len=20), parameter :: name='psb_init'
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integer(psb_ipk_) :: iinfo
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!
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call psb_set_debug_unit(psb_err_unit)
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#if defined(SERIAL_MPI)
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ictxt = nctxt
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nctxt = nctxt + 1
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call psi_register_mpi_extras(info)
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call psi_get_sizes()
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#else
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call mpi_initialized(initialized,info)
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if ((.not.initialized).or.(info /= mpi_success)) then
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if (info == mpi_success) call mpi_init(info)
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if (info /= mpi_success) then
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write(psb_err_unit,*) 'Error in initalizing MPI, bailing out',info
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stop
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end if
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end if
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if (present(basectxt)) then
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basecomm = basectxt
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else
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basecomm = mpi_comm_world
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end if
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if (present(np)) then
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if (np < 1) then
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iinfo=psb_err_initerror_neugh_procs_
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call psb_errpush(iinfo,name)
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call psb_error()
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ictxt = mpi_comm_null
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return
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endif
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call mpi_comm_size(basecomm,np_,info)
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if (np_ < np) then
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iinfo=psb_err_initerror_neugh_procs_
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call psb_errpush(iinfo,name)
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call psb_error()
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ictxt = mpi_comm_null
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return
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endif
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call mpi_comm_group(basecomm,basegroup,info)
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if (present(ids)) then
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if (size(ids)<np) then
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write(psb_err_unit,*) 'Error in init: too few ids in input'
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ictxt = mpi_comm_null
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return
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end if
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do i=1, np
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if ((ids(i)<0).or.(ids(i)>np_)) then
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write(psb_err_unit,*) 'Error in init: invalid rank in input'
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ictxt = mpi_comm_null
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return
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end if
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end do
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call mpi_group_incl(basegroup,np,ids,newgroup,info)
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if (info /= mpi_success) then
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ictxt = mpi_comm_null
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return
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endif
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else
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allocate(iids(np),stat=info)
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if (info /= 0) then
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ictxt = mpi_comm_null
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return
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endif
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do i=1, np
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iids(i) = i-1
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end do
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call mpi_group_incl(basegroup,np,iids,newgroup,info)
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if (info /= mpi_success) then
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ictxt = mpi_comm_null
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return
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endif
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deallocate(iids)
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end if
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call mpi_comm_create(basecomm,newgroup,ictxt,info)
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else
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if (basecomm /= mpi_comm_null) then
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call mpi_comm_dup(basecomm,ictxt,info)
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else
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ictxt = mpi_comm_null
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end if
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endif
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call psi_register_mpi_extras(info)
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call psi_get_sizes()
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if (ictxt == mpi_comm_null) return
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#endif
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call psb_init_vect_defaults()
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call psb_init_mat_defaults()
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! !$ call psb_rsb_init(info)
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! !$ if (info.ne.psb_rsb_const_success) then
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! !$ if (info.eq.psb_rsb_const_not_available) then
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! !$ info=psb_success_ ! rsb is not present
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! !$ else
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! !$ ! rsb failed to initialize, and we issue an internal error.
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! !$ ! or shall we tolerate this ?
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! !$ info=psb_err_internal_error_
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! !$ call psb_errpush(info,name)
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! !$ call psb_error(ictxt)
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! !$ endif
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! !$ endif
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end subroutine psb_init_mpik
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subroutine psb_exit_mpik(ictxt,close)
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use psi_comm_buffers_mod
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! !$ use psb_rsb_mod
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#ifdef MPI_MOD
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use mpi
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#endif
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implicit none
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#ifdef MPI_H
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include 'mpif.h'
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#endif
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integer(psb_mpk_), intent(inout) :: ictxt
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logical, intent(in), optional :: close
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logical :: close_
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integer(psb_mpk_) :: info
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character(len=20), parameter :: name='psb_exit'
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info = 0
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if (present(close)) then
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close_ = close
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else
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close_ = .true.
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end if
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! !$ if (close_) call psb_rsb_exit(info)
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! !$ if (info.ne.psb_rsb_const_success) then
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! !$ if (info.eq.psb_rsb_const_not_available) then
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! !$ info=psb_success_ ! rsb is not present
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! !$ else
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! !$ info=psb_err_internal_error_ ! rsb failed to exit, and we issue an internal error. or shall we tolerate this ?
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! !$ call psb_errpush(info,name)
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! !$ call psb_error(ictxt)
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! !$ endif
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! !$ endif
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#if defined(SERIAL_MPI)
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! Under serial mode, CLOSE has no effect, but reclaim
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! the used ICTXT number.
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nctxt = max(0, nctxt - 1)
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#else
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if (close_) then
|
|
call psb_close_all_context(psb_mesg_queue)
|
|
else
|
|
call psb_close_context(psb_mesg_queue,ictxt)
|
|
end if
|
|
if ((ictxt /= mpi_comm_null).and.(ictxt /= mpi_comm_world)) then
|
|
call mpi_comm_Free(ictxt,info)
|
|
end if
|
|
|
|
if (close_) call mpi_finalize(info)
|
|
#endif
|
|
|
|
|
|
end subroutine psb_exit_mpik
|
|
|
|
|
|
subroutine psb_barrier_mpik(ictxt)
|
|
#ifdef MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
integer(psb_mpk_), intent(in) :: ictxt
|
|
|
|
integer(psb_mpk_) :: info
|
|
#if !defined(SERIAL_MPI)
|
|
if (ictxt /= mpi_comm_null) then
|
|
call mpi_barrier(ictxt, info)
|
|
end if
|
|
#endif
|
|
|
|
end subroutine psb_barrier_mpik
|
|
|
|
function psb_wtime()
|
|
use psb_const_mod
|
|
! use mpi_constants
|
|
#ifdef MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
real(psb_dpk_) :: psb_wtime
|
|
|
|
psb_wtime = mpi_wtime()
|
|
end function psb_wtime
|
|
|
|
subroutine psb_abort_mpik(ictxt,errc)
|
|
use psi_comm_buffers_mod
|
|
|
|
integer(psb_mpk_), intent(in) :: ictxt
|
|
integer(psb_mpk_), intent(in), optional :: errc
|
|
|
|
integer(psb_mpk_) :: code, info
|
|
|
|
#if defined(SERIAL_MPI)
|
|
stop
|
|
#else
|
|
if (present(errc)) then
|
|
code = errc
|
|
else
|
|
code = -1
|
|
endif
|
|
|
|
call mpi_abort(ictxt,code,info)
|
|
#endif
|
|
|
|
end subroutine psb_abort_mpik
|
|
|
|
|
|
subroutine psb_info_mpik(ictxt,iam,np)
|
|
use psi_comm_buffers_mod
|
|
#ifdef MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
integer(psb_mpk_), intent(in) :: ictxt
|
|
integer(psb_mpk_), intent(out) :: iam, np
|
|
integer(psb_mpk_) :: info
|
|
!
|
|
! Simple caching scheme, keep track
|
|
! of the last CTXT encountered.
|
|
!
|
|
integer(psb_mpk_), save :: lctxt=-1, lam, lnp
|
|
|
|
#if defined(SERIAL_MPI)
|
|
iam = 0
|
|
np = 1
|
|
#else
|
|
iam = -1
|
|
np = -1
|
|
if (ictxt == lctxt) then
|
|
iam = lam
|
|
np = lnp
|
|
else
|
|
if (ictxt /= mpi_comm_null) then
|
|
call mpi_comm_size(ictxt,np,info)
|
|
if (info /= mpi_success) np = -1
|
|
call mpi_comm_rank(ictxt,iam,info)
|
|
if (info /= mpi_success) iam = -1
|
|
end if
|
|
lctxt = ictxt
|
|
lam = iam
|
|
lnp = np
|
|
end if
|
|
#endif
|
|
|
|
end subroutine psb_info_mpik
|
|
|
|
|
|
function psb_get_mpicomm(ictxt) result(comm)
|
|
integer(psb_mpk_) :: ictxt, comm
|
|
|
|
comm = ictxt
|
|
end function psb_get_mpicomm
|
|
|
|
function psb_get_rank(ictxt,id) result(rank)
|
|
integer(psb_mpk_) :: rank,ictxt,id
|
|
|
|
rank = id
|
|
end function psb_get_rank
|
|
|
|
|
|
! !!!!!!!!!!!!!!!!!!!!!!
|
|
!
|
|
! Base binary operations
|
|
!
|
|
! Note: len & type are always default integer.
|
|
!
|
|
! !!!!!!!!!!!!!!!!!!!!!!
|
|
subroutine psi_mamx_op(inv, outv,len,type)
|
|
integer(psb_mpk_) :: inv(len), outv(len)
|
|
integer(psb_mpk_) :: len,type
|
|
integer(psb_mpk_) :: i
|
|
|
|
do i=1, len
|
|
if (abs(inv(i)) > abs(outv(i))) outv(i) = inv(i)
|
|
end do
|
|
end subroutine psi_mamx_op
|
|
|
|
subroutine psi_mamn_op(inv, outv,len,type)
|
|
integer(psb_mpk_) :: inv(len), outv(len)
|
|
integer(psb_mpk_) :: len,type
|
|
integer(psb_mpk_) :: i
|
|
|
|
do i=1, len
|
|
if (abs(inv(i)) < abs(outv(i))) outv(i) = inv(i)
|
|
end do
|
|
end subroutine psi_mamn_op
|
|
|
|
subroutine psi_eamx_op(inv, outv,len,type)
|
|
integer(psb_epk_) :: inv(len), outv(len)
|
|
integer(psb_mpk_) :: len,type
|
|
integer(psb_mpk_) :: i
|
|
|
|
do i=1, len
|
|
if (abs(inv(i)) > abs(outv(i))) outv(i) = inv(i)
|
|
end do
|
|
end subroutine psi_eamx_op
|
|
|
|
subroutine psi_eamn_op(inv, outv,len,type)
|
|
integer(psb_epk_) :: inv(len), outv(len)
|
|
integer(psb_mpk_) :: len,type
|
|
integer(psb_mpk_) :: i
|
|
|
|
do i=1, len
|
|
if (abs(inv(i)) < abs(outv(i))) outv(i) = inv(i)
|
|
end do
|
|
end subroutine psi_eamn_op
|
|
|
|
subroutine psi_samx_op(vin,vinout,len,itype)
|
|
integer(psb_mpk_), intent(in) :: len, itype
|
|
real(psb_spk_), intent(in) :: vin(len)
|
|
real(psb_spk_), intent(inout) :: vinout(len)
|
|
|
|
integer(psb_mpk_) :: i
|
|
do i=1, len
|
|
if (abs(vinout(i)) < abs(vin(i))) vinout(i) = vin(i)
|
|
end do
|
|
end subroutine psi_samx_op
|
|
|
|
subroutine psi_samn_op(vin,vinout,len,itype)
|
|
integer(psb_mpk_), intent(in) :: len, itype
|
|
real(psb_spk_), intent(in) :: vin(len)
|
|
real(psb_spk_), intent(inout) :: vinout(len)
|
|
|
|
integer(psb_mpk_) :: i
|
|
do i=1, len
|
|
if (abs(vinout(i)) > abs(vin(i))) vinout(i) = vin(i)
|
|
end do
|
|
end subroutine psi_samn_op
|
|
|
|
subroutine psi_damx_op(vin,vinout,len,itype)
|
|
integer(psb_mpk_), intent(in) :: len, itype
|
|
real(psb_dpk_), intent(in) :: vin(len)
|
|
real(psb_dpk_), intent(inout) :: vinout(len)
|
|
|
|
integer(psb_mpk_) :: i
|
|
do i=1, len
|
|
if (abs(vinout(i)) < abs(vin(i))) vinout(i) = vin(i)
|
|
end do
|
|
end subroutine psi_damx_op
|
|
|
|
subroutine psi_damn_op(vin,vinout,len,itype)
|
|
integer(psb_mpk_), intent(in) :: len, itype
|
|
real(psb_dpk_), intent(in) :: vin(len)
|
|
real(psb_dpk_), intent(inout) :: vinout(len)
|
|
|
|
integer(psb_mpk_) :: i
|
|
do i=1, len
|
|
if (abs(vinout(i)) > abs(vin(i))) vinout(i) = vin(i)
|
|
end do
|
|
end subroutine psi_damn_op
|
|
|
|
subroutine psi_camx_op(vin,vinout,len,itype)
|
|
integer(psb_mpk_), intent(in) :: len, itype
|
|
complex(psb_spk_), intent(in) :: vin(len)
|
|
complex(psb_spk_), intent(inout) :: vinout(len)
|
|
|
|
integer(psb_mpk_) :: i
|
|
do i=1, len
|
|
if (abs(vinout(i)) < abs(vin(i))) vinout(i) = vin(i)
|
|
end do
|
|
end subroutine psi_camx_op
|
|
|
|
subroutine psi_camn_op(vin,vinout,len,itype)
|
|
integer(psb_mpk_), intent(in) :: len, itype
|
|
complex(psb_spk_), intent(in) :: vin(len)
|
|
complex(psb_spk_), intent(inout) :: vinout(len)
|
|
|
|
integer(psb_mpk_) :: i
|
|
do i=1, len
|
|
if (abs(vinout(i)) > abs(vin(i))) vinout(i) = vin(i)
|
|
end do
|
|
end subroutine psi_camn_op
|
|
|
|
subroutine psi_zamx_op(vin,vinout,len,itype)
|
|
integer(psb_mpk_), intent(in) :: len, itype
|
|
complex(psb_dpk_), intent(in) :: vin(len)
|
|
complex(psb_dpk_), intent(inout) :: vinout(len)
|
|
|
|
integer(psb_mpk_) :: i
|
|
do i=1, len
|
|
if (abs(vinout(i)) < abs(vin(i))) vinout(i) = vin(i)
|
|
end do
|
|
end subroutine psi_zamx_op
|
|
|
|
subroutine psi_zamn_op(vin,vinout,len,itype)
|
|
integer(psb_mpk_), intent(in) :: len, itype
|
|
complex(psb_dpk_), intent(in) :: vin(len)
|
|
complex(psb_dpk_), intent(inout) :: vinout(len)
|
|
|
|
integer(psb_mpk_) :: i
|
|
do i=1, len
|
|
if (abs(vinout(i)) > abs(vin(i))) vinout(i) = vin(i)
|
|
end do
|
|
end subroutine psi_zamn_op
|
|
|
|
subroutine psi_snrm2_op(vin,vinout,len,itype)
|
|
implicit none
|
|
integer(psb_mpk_), intent(in) :: len, itype
|
|
real(psb_spk_), intent(in) :: vin(len)
|
|
real(psb_spk_), intent(inout) :: vinout(len)
|
|
|
|
integer(psb_mpk_) :: i
|
|
real(psb_spk_) :: w, z
|
|
do i=1, len
|
|
w = max( vin(i), vinout(i) )
|
|
z = min( vin(i), vinout(i) )
|
|
if ( z == szero ) then
|
|
vinout(i) = w
|
|
else
|
|
vinout(i) = w*sqrt( sone+( z / w )**2 )
|
|
end if
|
|
end do
|
|
end subroutine psi_snrm2_op
|
|
|
|
subroutine psi_dnrm2_op(vin,vinout,len,itype)
|
|
implicit none
|
|
integer(psb_mpk_), intent(in) :: len, itype
|
|
real(psb_dpk_), intent(in) :: vin(len)
|
|
real(psb_dpk_), intent(inout) :: vinout(len)
|
|
|
|
integer(psb_mpk_) :: i
|
|
real(psb_dpk_) :: w, z
|
|
do i=1, len
|
|
w = max( vin(i), vinout(i) )
|
|
z = min( vin(i), vinout(i) )
|
|
if ( z == dzero ) then
|
|
vinout(i) = w
|
|
else
|
|
vinout(i) = w*sqrt( done+( z / w )**2 )
|
|
end if
|
|
end do
|
|
end subroutine psi_dnrm2_op
|
|
|
|
end module psi_penv_mod
|