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529 lines
16 KiB
Fortran
529 lines
16 KiB
Fortran
!
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! Parallel Sparse BLAS GPU plugin
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! (C) Copyright 2013
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! Salvatore Filippone
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! Alessandro Fanfarillo
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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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! File: dpdegenmv.f90
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!
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! Program: pdegenmv
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! This sample program measures the performance of the matrix-vector product.
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! The matrix is generated in the same way as for the pdegen test case of
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! the main PSBLAS library.
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!
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!
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program pdgenmv
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use psb_base_mod
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use psb_util_mod
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use psb_ext_mod
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use psb_d_pde3d_mod
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#ifdef PSB_OPENACC
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use psb_oacc_mod
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#endif
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#ifdef PSB_HAVE_CUDA
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use psb_cuda_mod
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#endif
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implicit none
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! input parameters
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character(len=5) :: acfmt, agfmt
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integer :: idim
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logical :: tnd
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! miscellaneous
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real(psb_dpk_), parameter :: one = 1.d0
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real(psb_dpk_) :: t1, t2, tprec, flops, tflops,&
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& tt1, tt2, gt1, gt2, gflops, bdwdth,&
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& tcnvcsr, tcnvc1, tcnvgpu, tcnvg1
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! sparse matrix and preconditioner
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type(psb_dspmat_type) :: a, agpu, aux_a
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! descriptor
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type(psb_desc_type) :: desc_a
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! dense matrices
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type(psb_d_vect_type), target :: xv, bv, xg, bg
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real(psb_dpk_), allocatable :: x1(:), x2(:), x0(:)
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! blacs parameters
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type(psb_ctxt_type) :: ctxt
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integer :: iam, np
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! solver parameters
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integer(psb_epk_) :: amatsize, precsize, descsize, annz, nbytes
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real(psb_dpk_) :: err, eps, tnv, tng,tdot, dnrm2,ddot
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integer, parameter :: ntests=8, ngpu=4, ncnv=3
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type(psb_d_coo_sparse_mat), target :: acoo
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type(psb_d_csr_sparse_mat), target :: acsr
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type(psb_d_ell_sparse_mat), target :: aell
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type(psb_d_hll_sparse_mat), target :: ahll
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type(psb_d_dia_sparse_mat), target :: adia
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type(psb_d_hdia_sparse_mat), target :: ahdia
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type(psb_d_base_vect_type), target :: dvect
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type(psb_i_base_vect_type), target :: ivect
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class(psb_d_base_sparse_mat), pointer :: acmold => acsr
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class(psb_d_base_vect_type), pointer :: vmold => dvect
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class(psb_i_base_vect_type), pointer :: imold => ivect
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class(psb_d_base_vect_type), pointer :: vgmold => dvect
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class(psb_i_base_vect_type), pointer :: igmold => ivect
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#if defined(PSB_HAVE_CUDA)
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type(psb_d_cuda_hlg_sparse_mat), target :: ahlg
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type(psb_d_cuda_hdiag_sparse_mat), target :: ahdiag
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type(psb_d_cuda_csrg_sparse_mat), target :: acsrg
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type(psb_d_cuda_elg_sparse_mat), target :: aelg
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type(psb_d_vect_cuda), target :: dvgpu
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type(psb_i_vect_cuda), target :: ivgpu
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#endif
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#if defined(PSB_OPENACC)
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type(psb_d_oacc_hll_sparse_mat), target :: ahlo
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type(psb_d_oacc_csr_sparse_mat), target :: acsro
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type(psb_d_oacc_ell_sparse_mat), target :: aelo
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type(psb_d_vect_oacc), target :: dvoac
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type(psb_i_vect_oacc), target :: ivoac
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#endif
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class(psb_d_base_sparse_mat), pointer :: agmold
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! other variables
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logical, parameter :: dump=.false.
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integer(psb_ipk_) :: info, i, j, nr, nrg
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integer(psb_lpk_) :: ig
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character(len=20) :: name,ch_err
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character(len=40) :: fname
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info=psb_success_
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call psb_init(ctxt)
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call psb_info(ctxt,iam,np)
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#ifdef PSB_OPENACC
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call psb_oacc_init(ctxt)
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#endif
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#ifdef PSB_HAVE_CUDA
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call psb_cuda_init(ctxt)
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#endif
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if (iam < 0) then
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! This should not happen, but just in case
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call psb_exit(ctxt)
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stop
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endif
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if(psb_get_errstatus() /= 0) goto 9999
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name='pdegenmv-oacc'
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!
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! Hello world
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!
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if (iam == psb_root_) then
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write(*,*) 'Welcome to PSBLAS version: ',psb_version_string_
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write(*,*) 'This is the ',trim(name),' sample program'
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end if
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#ifdef PSB_OPENACC
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!!$ write(*,*) 'Process ',iam,' running on device: ', psb_oacc_getDevice(),' out of', psb_oacc_getDeviceCount()
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!!$ write(*,*) 'Process ',iam,' device ', psb_oacc_getDevice(),' is a: ', trim(psb_oacc_DeviceName())
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#endif
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#if defined(PSB_HAVE_CUDA)
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write(*,*) 'Process ',iam,' running on device: ', psb_cuda_getDevice(),' out of', psb_cuda_getDeviceCount()
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write(*,*) 'Process ',iam,' device ', psb_cuda_getDevice(),' is a: ', trim(psb_cuda_DeviceName())
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#endif
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!
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! get parameters
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!
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call get_parms(ctxt,acfmt,agfmt,idim,tnd)
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call psb_init_timers()
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!
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! allocate and fill in the coefficient matrix and initial vectors
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!
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call psb_barrier(ctxt)
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t1 = psb_wtime()
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call psb_d_gen_pde3d(ctxt,idim,a,bv,xv,desc_a,'CSR ',info,partition=3,tnd=tnd)
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call psb_barrier(ctxt)
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t2 = psb_wtime() - t1
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='create_matrix'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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if (iam == psb_root_) write(psb_out_unit,'("Overall matrix creation time : ",es12.5)')t2
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if (iam == psb_root_) write(psb_out_unit,'(" ")')
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if (dump) then
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write(fname,'(a,i3.3,a,i3.3,a,i3.3,a)') 'pde',idim,'-',iam,'-',np,'.mtx'
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call a%print(fname,head='PDEGEN test matrix')
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end if
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select case(psb_toupper(acfmt))
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case('ELL')
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acmold => aell
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case('HLL')
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acmold => ahll
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case('DIA')
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acmold => adia
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case('HDIA')
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acmold => ahdia
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case('CSR')
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acmold => acsr
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case('COO')
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acmold => acoo
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case default
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write(*,*) 'Unknown format defaulting to HLL'
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acmold => ahll
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end select
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call a%cscnv(info,mold=acmold)
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if ((info /= 0).or.(psb_get_errstatus()/=0)) then
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write(0,*) 'From cscnv ',info
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call psb_error()
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stop
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end if
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select case(psb_toupper(agfmt))
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#if defined(PSB_HAVE_CUDA)
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case('ELG')
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agmold => aelg
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vgmold => dvgpu
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igmold => ivgpu
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case('HLG')
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call psi_set_hksz(32)
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agmold => ahlg
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vgmold => dvgpu
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igmold => ivgpu
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case('HDIAG')
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agmold => ahdiag
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vgmold => dvgpu
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igmold => ivgpu
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case('CSRG')
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agmold => acsrg
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vgmold => dvgpu
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igmold => ivgpu
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#endif
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#if defined(PSB_OPENACC)
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case('ELO')
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agmold => aelo
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vgmold => dvoac
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igmold => ivoac
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case('HLO')
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call psi_set_hksz(32)
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agmold => ahlo
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vgmold => dvoac
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igmold => ivoac
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!!$ case('HDIAG')
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!!$ amold => ahdiag
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case('CSRO')
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agmold => acsro
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vgmold => dvoac
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igmold => ivoac
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#endif
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end select
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call a%cscnv(agpu,info,mold=agmold)
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if ((info /= 0).or.(psb_get_errstatus()/=0)) then
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write(0,*) 'From cscnv ',info
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call psb_error()
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stop
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end if
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call desc_a%cnv(mold=igmold)
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call psb_geasb(bg,desc_a,info,scratch=.true.,mold=vgmold)
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call psb_geasb(xg,desc_a,info,scratch=.true.,mold=vgmold)
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nr = desc_a%get_local_rows()
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nrg = desc_a%get_global_rows()
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call psb_geall(x0,desc_a,info)
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do i=1, nr
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call desc_a%l2g(i,ig,info)
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x0(i) = 1.0 + (1.0*ig)/(nrg**2)
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end do
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call a%cscnv(aux_a,info,mold=acoo)
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tcnvcsr = 0
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tcnvgpu = 0
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call psb_geall(x1,desc_a,info)
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do j=1, ncnv
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call aux_a%cscnv(a,info,mold=acoo)
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call psb_barrier(ctxt)
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t1 = psb_wtime()
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call a%cscnv(info,mold=acmold)
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t2 = psb_Wtime() -t1
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call psb_amx(ctxt,t2)
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tcnvcsr = tcnvcsr + t2
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if (j==1) tcnvc1 = t2
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call psb_geasb(x1,desc_a,info)
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call xv%bld(x0)
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call psb_geasb(bv,desc_a,info,scratch=.true.)
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#if defined(PSB_OPENACC)||defined(PSB_HAVE_CUDA)
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call aux_a%cscnv(agpu,info,mold=acoo)
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call xg%bld(x0,mold=vgmold)
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call psb_geasb(bg,desc_a,info,scratch=.true.,mold=vgmold)
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call psb_barrier(ctxt)
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t1 = psb_wtime()
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call agpu%cscnv(info,mold=agmold)
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!!$ call psb_oacc_DeviceSync()
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t2 = psb_Wtime() -t1
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call psb_amx(ctxt,t2)
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if (j==1) tcnvg1 = t2
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tcnvgpu = tcnvgpu + t2
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#endif
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end do
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call xv%set(x0)
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call psb_barrier(ctxt)
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t1 = psb_wtime()
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do i=1,ntests
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call psb_spmm(done,a,xv,dzero,bv,desc_a,info)
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end do
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call psb_barrier(ctxt)
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t2 = psb_wtime() - t1
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call psb_amx(ctxt,t2)
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#if defined(PSB_OPENACC)||defined(PSB_HAVE_CUDA)
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call xg%set(x0)
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! FIXME: cache flush needed here
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x1 = bv%get_vect()
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x2 = bg%get_vect()
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call psb_barrier(ctxt)
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tt1 = psb_wtime()
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do i=1,ntests
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call psb_spmm(done,agpu,xv,dzero,bg,desc_a,info)
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if ((info /= 0).or.(psb_get_errstatus()/=0)) then
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write(0,*) 'From 1 spmm',info,i,ntests
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call psb_error()
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stop
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end if
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end do
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!!$ call psb_oacc_DeviceSync()
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call psb_barrier(ctxt)
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tt2 = psb_wtime() - tt1
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call psb_amx(ctxt,tt2)
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x1 = bv%get_vect()
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x2 = bg%get_vect()
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nr = desc_a%get_local_rows()
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eps = maxval(abs(x1(1:nr)-x2(1:nr)))
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call psb_amx(ctxt,eps)
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if (iam==0) write(*,*) 'Max diff on xGPU',eps
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! FIXME: cache flush needed here
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call xg%set(x0)
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call xg%sync()
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call psb_barrier(ctxt)
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gt1 = psb_wtime()
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do i=1,ntests*ngpu
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call psb_spmm(done,agpu,xg,dzero,bg,desc_a,info)
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! For timing purposes we need to make sure all threads
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! in the device are done.
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if ((info /= 0).or.(psb_get_errstatus()/=0)) then
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write(0,*) 'From 2 spmm',info,i,ntests
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call psb_error()
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stop
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end if
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end do
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!!$ call psb_oacc_DeviceSync()
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call psb_barrier(ctxt)
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gt2 = psb_wtime() - gt1
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call psb_amx(ctxt,gt2)
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call bg%sync()
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x1 = bv%get_vect()
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x2 = bg%get_vect()
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tnv = psb_genrm2(bv,desc_a,info)
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tng = psb_genrm2(bg,desc_a,info)
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tdot = psb_gedot(bg,bg,desc_a,info)
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write(0,*) ' bv ',tnv,' bg ',tng, ' dot ',tdot,eps,&
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& dnrm2(desc_a%get_local_rows(),x2,1),&
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& ddot(desc_a%get_local_rows(),x1,1,x2,1)
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call psb_geaxpby(-done,bg,+done,bv,desc_a,info)
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eps = psb_geamax(bv,desc_a,info)
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call psb_amx(ctxt,t2)
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eps = maxval(abs(x1(1:nr)-x2(1:nr)))
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call psb_amx(ctxt,eps)
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if (iam==0) write(*,*) 'Max diff on GPU',eps
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if (dump) then
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write(fname,'(a,i3.3,a,i3.3,a)')'XCPU-out-',iam,'-',np,'.mtx'
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call mm_array_write(x1(1:nr),'Local part CPU',info,filename=fname)
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write(fname,'(a,i3.3,a,i3.3,a)')'XGPU-out-',iam,'-',np,'.mtx'
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call mm_array_write(x2(1:nr),'Local part GPU',info,filename=fname)
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end if
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#endif
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annz = a%get_nzeros()
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amatsize = a%sizeof()
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descsize = psb_sizeof(desc_a)
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call psb_sum(ctxt,nr)
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call psb_sum(ctxt,annz)
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call psb_sum(ctxt,amatsize)
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call psb_sum(ctxt,descsize)
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if (iam == psb_root_) then
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write(psb_out_unit,&
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& '("Matrix: ell1 ",i0)') idim
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write(psb_out_unit,&
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&'("Test on : ",i20," processors")') np
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write(psb_out_unit,&
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&'("Size of matrix : ",i20," ")') nr
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write(psb_out_unit,&
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&'("Number of nonzeros : ",i20," ")') annz
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write(psb_out_unit,&
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&'("Memory occupation : ",i20," ")') amatsize
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flops = ntests*(2.d0*annz)
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tflops = flops
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gflops = flops * ngpu
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write(psb_out_unit,'("Storage type for A: ",a)') a%get_fmt()
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#if defined(PSB_OPENACC)||defined(PSB_HAVE_CUDA)
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write(psb_out_unit,'("Storage type for AGPU: ",a)') agpu%get_fmt()
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write(psb_out_unit,'("Time to convert A from COO to CPU (1): ",F20.9)')&
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& tcnvc1
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write(psb_out_unit,'("Time to convert A from COO to CPU (t): ",F20.9)')&
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& tcnvcsr
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write(psb_out_unit,'("Time to convert A from COO to CPU (a): ",F20.9)')&
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& tcnvcsr/ncnv
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write(psb_out_unit,'("Time to convert A from COO to GPU (1): ",F20.9)')&
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& tcnvg1
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write(psb_out_unit,'("Time to convert A from COO to GPU (t): ",F20.9)')&
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& tcnvgpu
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write(psb_out_unit,'("Time to convert A from COO to GPU (a): ",F20.9)')&
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& tcnvgpu/ncnv
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#endif
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write(psb_out_unit,&
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& '("Number of flops (",i0," prod) : ",F20.0," ")') &
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& ntests,flops
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flops = flops / (t2)
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tflops = tflops / (tt2)
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gflops = gflops / (gt2)
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write(psb_out_unit,'("Time for ",i6," products (s) (CPU) : ",F20.3)')&
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& ntests,t2
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write(psb_out_unit,'("Time per product (ms) (CPU) : ",F20.3)')&
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& t2*1.d3/(1.d0*ntests)
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write(psb_out_unit,'("MFLOPS (CPU) : ",F20.3)')&
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& flops/1.d6
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#if defined(PSB_OPENACC)||defined(PSB_HAVE_CUDA)
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write(psb_out_unit,'("Time for ",i6," products (s) (xGPU) : ",F20.3)')&
|
|
& ntests, tt2
|
|
write(psb_out_unit,'("Time per product (ms) (xGPU) : ",F20.3)')&
|
|
& tt2*1.d3/(1.d0*ntests)
|
|
write(psb_out_unit,'("MFLOPS (xGPU) : ",F20.3)')&
|
|
& tflops/1.d6
|
|
|
|
write(psb_out_unit,'("Time for ",i6," products (s) (GPU.) : ",F20.3)')&
|
|
& ngpu*ntests,gt2
|
|
write(psb_out_unit,'("Time per product (ms) (GPU.) : ",F20.3)')&
|
|
& gt2*1.d3/(1.d0*ntests*ngpu)
|
|
write(psb_out_unit,'("MFLOPS (GPU.) : ",F20.3)')&
|
|
& gflops/1.d6
|
|
#endif
|
|
!
|
|
! This computation assumes the data movement associated with CSR:
|
|
! it is minimal in terms of coefficients. Other formats may either move
|
|
! more data (padding etc.) or less data (if they can save on the indices).
|
|
!
|
|
nbytes = nr*(2*psb_sizeof_dp + psb_sizeof_ip)+&
|
|
& annz*(psb_sizeof_dp + psb_sizeof_ip)
|
|
bdwdth = ntests*nbytes/(t2*1.d6)
|
|
write(psb_out_unit,*)
|
|
write(psb_out_unit,'("MBYTES/S sust. effective bandwidth (CPU) : ",F20.3)') bdwdth
|
|
#if defined(PSB_OPENACC)||defined(PSB_HAVE_CUDA)
|
|
bdwdth = ngpu*ntests*nbytes/(gt2*1.d6)
|
|
write(psb_out_unit,'("MBYTES/S sust. effective bandwidth (GPU) : ",F20.3)') bdwdth
|
|
!!$ bdwdth = psb_oacc_MemoryPeakBandwidth()
|
|
write(psb_out_unit,'("MBYTES/S peak bandwidth (GPU) : ",F20.3)') bdwdth
|
|
#endif
|
|
write(psb_out_unit,'("Storage type for DESC_A: ",a)') desc_a%indxmap%get_fmt()
|
|
write(psb_out_unit,'("Total memory occupation for DESC_A: ",i12)')descsize
|
|
|
|
end if
|
|
call psb_print_timers(ctxt)
|
|
|
|
!
|
|
! cleanup storage and exit
|
|
!
|
|
call psb_gefree(bv,desc_a,info)
|
|
call psb_gefree(xv,desc_a,info)
|
|
call psb_spfree(a,desc_a,info)
|
|
call psb_cdfree(desc_a,info)
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='free routine'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
#ifdef PSB_OPENACC
|
|
call psb_oacc_exit()
|
|
#endif
|
|
#ifdef PSB_HAVE_CUDA
|
|
call psb_cuda_exit()
|
|
#endif
|
|
call psb_exit(ctxt)
|
|
stop
|
|
|
|
9999 continue
|
|
call psb_error(ctxt)
|
|
|
|
contains
|
|
!
|
|
! get iteration parameters from standard input
|
|
!
|
|
subroutine get_parms(ctxt,acfmt,agfmt,idim,tnd)
|
|
type(psb_ctxt_type) :: ctxt
|
|
character(len=*) :: agfmt, acfmt
|
|
integer :: idim
|
|
logical :: tnd
|
|
integer :: np, iam
|
|
integer :: intbuf(10), ip
|
|
|
|
call psb_info(ctxt, iam, np)
|
|
|
|
if (iam == 0) then
|
|
write(*,*) 'CPU side format?'
|
|
read(psb_inp_unit,*) acfmt
|
|
write(*,*) 'DEVICE side format?'
|
|
read(psb_inp_unit,*) agfmt
|
|
write(*,*) 'Size of discretization cube?'
|
|
read(psb_inp_unit,*) idim
|
|
write(*,*) 'Try comm/comp overlap?'
|
|
read(psb_inp_unit,*) tnd
|
|
endif
|
|
call psb_bcast(ctxt,acfmt)
|
|
call psb_bcast(ctxt,agfmt)
|
|
call psb_bcast(ctxt,idim)
|
|
call psb_bcast(ctxt,tnd)
|
|
|
|
if (iam == 0) then
|
|
write(psb_out_unit,'("Testing matrix : ell1")')
|
|
write(psb_out_unit,'("Grid dimensions : ",i4,"x",i4,"x",i4)')idim,idim,idim
|
|
write(psb_out_unit,'("Number of processors : ",i0)')np
|
|
write(psb_out_unit,'("Data distribution : BLOCK")')
|
|
write(psb_out_unit,'(" ")')
|
|
write(psb_out_unit,'("Storage formats ",a)') acfmt,' ',agfmt
|
|
write(psb_out_unit,'("Testing overlap ND ",l8)') tnd
|
|
end if
|
|
return
|
|
|
|
end subroutine get_parms
|
|
|
|
end program pdgenmv
|