New test in openacc
sfilippone
1 month ago
parent
fa6b8d5e33
commit
288805671f
@ -0,0 +1,992 @@
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!
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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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module psb_d_pde3d_mod
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use psb_base_mod, only : psb_dpk_, psb_ipk_, psb_lpk_, psb_desc_type,&
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& psb_dspmat_type, psb_d_vect_type, dzero,&
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& psb_d_base_sparse_mat, psb_d_base_vect_type, &
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& psb_i_base_vect_type, psb_l_base_vect_type
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interface
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function d_func_3d(x,y,z) result(val)
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import :: psb_dpk_
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real(psb_dpk_), intent(in) :: x,y,z
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real(psb_dpk_) :: val
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end function d_func_3d
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end interface
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interface psb_gen_pde3d
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module procedure psb_d_gen_pde3d
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end interface psb_gen_pde3d
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contains
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function d_null_func_3d(x,y,z) result(val)
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real(psb_dpk_), intent(in) :: x,y,z
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real(psb_dpk_) :: val
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val = dzero
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end function d_null_func_3d
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!
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! functions parametrizing the differential equation
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!
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!
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! Note: b1, b2 and b3 are the coefficients of the first
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! derivative of the unknown function. The default
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! we apply here is to have them zero, so that the resulting
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! matrix is symmetric/hermitian and suitable for
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! testing with CG and FCG.
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! When testing methods for non-hermitian matrices you can
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! change the B1/B2/B3 functions to e.g. done/sqrt((3*done))
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!
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function b1(x,y,z)
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use psb_base_mod, only : psb_dpk_, done, dzero
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implicit none
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real(psb_dpk_) :: b1
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real(psb_dpk_), intent(in) :: x,y,z
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b1=done/sqrt((3*done))
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end function b1
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function b2(x,y,z)
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use psb_base_mod, only : psb_dpk_, done, dzero
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implicit none
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real(psb_dpk_) :: b2
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real(psb_dpk_), intent(in) :: x,y,z
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b2=done/sqrt((3*done))
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end function b2
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function b3(x,y,z)
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use psb_base_mod, only : psb_dpk_, done, dzero
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implicit none
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real(psb_dpk_) :: b3
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real(psb_dpk_), intent(in) :: x,y,z
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b3=done/sqrt((3*done))
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end function b3
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function c(x,y,z)
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use psb_base_mod, only : psb_dpk_, done, dzero
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implicit none
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real(psb_dpk_) :: c
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real(psb_dpk_), intent(in) :: x,y,z
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c=dzero
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end function c
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function a1(x,y,z)
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use psb_base_mod, only : psb_dpk_, done, dzero
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implicit none
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real(psb_dpk_) :: a1
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real(psb_dpk_), intent(in) :: x,y,z
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a1=done/80
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end function a1
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function a2(x,y,z)
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use psb_base_mod, only : psb_dpk_, done, dzero
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implicit none
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real(psb_dpk_) :: a2
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real(psb_dpk_), intent(in) :: x,y,z
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a2=done/80
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end function a2
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function a3(x,y,z)
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use psb_base_mod, only : psb_dpk_, done, dzero
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implicit none
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real(psb_dpk_) :: a3
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real(psb_dpk_), intent(in) :: x,y,z
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a3=done/80
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end function a3
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function g(x,y,z)
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use psb_base_mod, only : psb_dpk_, done, dzero
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implicit none
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real(psb_dpk_) :: g
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real(psb_dpk_), intent(in) :: x,y,z
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g = dzero
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if (x == done) then
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g = done
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else if (x == dzero) then
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g = exp(y**2-z**2)
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end if
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end function g
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!
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! subroutine to allocate and fill in the coefficient matrix and
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! the rhs.
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!
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subroutine psb_d_gen_pde3d(ctxt,idim,a,bv,xv,desc_a,afmt,info,&
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& f,amold,vmold,imold,partition,nrl,iv,tnd)
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use psb_base_mod
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use psb_util_mod
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!
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! Discretizes the partial differential equation
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!
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! a1 dd(u) a2 dd(u) a3 dd(u) b1 d(u) b2 d(u) b3 d(u)
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! - ------ - ------ - ------ + ----- + ------ + ------ + c u = f
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! dxdx dydy dzdz dx dy dz
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!
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! with Dirichlet boundary conditions
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! u = g
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!
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! on the unit cube 0<=x,y,z<=1.
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!
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!
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! Note that if b1=b2=b3=c=0., the PDE is the Laplace equation.
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!
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implicit none
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integer(psb_ipk_) :: idim
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type(psb_dspmat_type) :: a
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type(psb_d_vect_type) :: xv,bv
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type(psb_desc_type) :: desc_a
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type(psb_ctxt_type) :: ctxt
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integer(psb_ipk_) :: info
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character(len=*) :: afmt
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procedure(d_func_3d), optional :: f
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class(psb_d_base_sparse_mat), optional :: amold
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class(psb_d_base_vect_type), optional :: vmold
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class(psb_i_base_vect_type), optional :: imold
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integer(psb_ipk_), optional :: partition, nrl,iv(:)
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logical, optional :: tnd
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! Local variables.
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integer(psb_ipk_), parameter :: nb=20
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type(psb_d_csc_sparse_mat) :: acsc
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type(psb_d_coo_sparse_mat) :: acoo
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type(psb_d_csr_sparse_mat) :: acsr
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real(psb_dpk_) :: zt(nb),x,y,z
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integer(psb_ipk_) :: nnz,nr,nlr,i,j,ii,ib,k, partition_
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integer(psb_lpk_) :: m,n,glob_row,nt
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integer(psb_ipk_) :: ix,iy,iz,ia,indx_owner
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! For 3D partition
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! Note: integer control variables going directly into an MPI call
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! must be 4 bytes, i.e. psb_mpk_
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integer(psb_mpk_) :: npdims(3), npp, minfo
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integer(psb_ipk_) :: npx,npy,npz, iamx,iamy,iamz,mynx,myny,mynz
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integer(psb_ipk_), allocatable :: bndx(:),bndy(:),bndz(:)
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! Process grid
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integer(psb_ipk_) :: np, iam
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integer(psb_ipk_) :: icoeff
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integer(psb_lpk_), allocatable :: irow(:),icol(:),myidx(:)
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real(psb_dpk_), allocatable :: val(:)
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! deltah dimension of each grid cell
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! deltat discretization time
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real(psb_dpk_) :: deltah, sqdeltah, deltah2
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real(psb_dpk_), parameter :: rhs=dzero,one=done,zero=dzero
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real(psb_dpk_) :: t0, t1, t2, t3, tasb, talc, ttot, tgen, tcdasb
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integer(psb_ipk_) :: err_act
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procedure(d_func_3d), pointer :: f_
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logical :: tnd_
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character(len=20) :: name, ch_err,tmpfmt
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info = psb_success_
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name = 'create_matrix'
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call psb_erractionsave(err_act)
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call psb_info(ctxt, iam, np)
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if (present(f)) then
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f_ => f
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else
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f_ => d_null_func_3d
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end if
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deltah = done/(idim+2)
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sqdeltah = deltah*deltah
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deltah2 = (2*done)* deltah
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if (present(partition)) then
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if ((1<= partition).and.(partition <= 3)) then
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partition_ = partition
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else
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write(*,*) 'Invalid partition choice ',partition,' defaulting to 3'
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partition_ = 3
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end if
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else
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partition_ = 3
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end if
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! initialize array descriptor and sparse matrix storage. provide an
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! estimate of the number of non zeroes
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m = (1_psb_lpk_*idim)*idim*idim
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n = m
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nnz = ((n*7)/(np))
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if(iam == psb_root_) write(psb_out_unit,'("Generating Matrix (size=",i0,")...")')n
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t0 = psb_wtime()
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select case(partition_)
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case(1)
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! A BLOCK partition
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if (present(nrl)) then
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nr = nrl
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else
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!
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! Using a simple BLOCK distribution.
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!
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nt = (m+np-1)/np
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nr = max(0,min(nt,m-(iam*nt)))
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end if
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nt = nr
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call psb_sum(ctxt,nt)
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if (nt /= m) then
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write(psb_err_unit,*) iam, 'Initialization error ',nr,nt,m
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info = -1
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call psb_barrier(ctxt)
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call psb_abort(ctxt)
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return
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end if
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!
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! First example of use of CDALL: specify for each process a number of
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! contiguous rows
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!
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call psb_cdall(ctxt,desc_a,info,nl=nr)
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myidx = desc_a%get_global_indices()
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nlr = size(myidx)
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case(2)
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! A partition defined by the user through IV
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if (present(iv)) then
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if (size(iv) /= m) then
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write(psb_err_unit,*) iam, 'Initialization error: wrong IV size',size(iv),m
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info = -1
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call psb_barrier(ctxt)
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call psb_abort(ctxt)
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return
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end if
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else
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write(psb_err_unit,*) iam, 'Initialization error: IV not present'
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info = -1
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call psb_barrier(ctxt)
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call psb_abort(ctxt)
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return
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end if
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!
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! Second example of use of CDALL: specify for each row the
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! process that owns it
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!
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call psb_cdall(ctxt,desc_a,info,vg=iv)
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myidx = desc_a%get_global_indices()
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nlr = size(myidx)
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case(3)
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! A 3-dimensional partition
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! A nifty MPI function will split the process list
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npdims = 0
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call mpi_dims_create(np,3,npdims,info)
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npx = npdims(1)
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npy = npdims(2)
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npz = npdims(3)
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allocate(bndx(0:npx),bndy(0:npy),bndz(0:npz))
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! We can reuse idx2ijk for process indices as well.
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call idx2ijk(iamx,iamy,iamz,iam,npx,npy,npz,base=0)
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! Now let's split the 3D cube in hexahedra
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call dist1Didx(bndx,idim,npx)
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mynx = bndx(iamx+1)-bndx(iamx)
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call dist1Didx(bndy,idim,npy)
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myny = bndy(iamy+1)-bndy(iamy)
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call dist1Didx(bndz,idim,npz)
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mynz = bndz(iamz+1)-bndz(iamz)
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! How many indices do I own?
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nlr = mynx*myny*mynz
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allocate(myidx(nlr))
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! Now, let's generate the list of indices I own
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nr = 0
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do i=bndx(iamx),bndx(iamx+1)-1
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do j=bndy(iamy),bndy(iamy+1)-1
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do k=bndz(iamz),bndz(iamz+1)-1
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nr = nr + 1
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call ijk2idx(myidx(nr),i,j,k,idim,idim,idim)
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end do
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end do
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end do
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if (nr /= nlr) then
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write(psb_err_unit,*) iam,iamx,iamy,iamz, 'Initialization error: NR vs NLR ',&
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& nr,nlr,mynx,myny,mynz
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info = -1
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call psb_barrier(ctxt)
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call psb_abort(ctxt)
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end if
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!
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! Third example of use of CDALL: specify for each process
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! the set of global indices it owns.
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!
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call psb_cdall(ctxt,desc_a,info,vl=myidx)
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case default
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write(psb_err_unit,*) iam, 'Initialization error: should not get here'
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info = -1
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call psb_barrier(ctxt)
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call psb_abort(ctxt)
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return
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end select
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if (info == psb_success_) call psb_spall(a,desc_a,info,nnz=nnz,&
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& dupl=psb_dupl_err_)
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! define rhs from boundary conditions; also build initial guess
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if (info == psb_success_) call psb_geall(xv,desc_a,info)
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if (info == psb_success_) call psb_geall(bv,desc_a,info)
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call psb_barrier(ctxt)
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talc = psb_wtime()-t0
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if (info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='allocation rout.'
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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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! we build an auxiliary matrix consisting of one row at a
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! time; just a small matrix. might be extended to generate
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! a bunch of rows per call.
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!
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allocate(val(20*nb),irow(20*nb),&
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&icol(20*nb),stat=info)
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if (info /= psb_success_ ) then
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info=psb_err_alloc_dealloc_
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call psb_errpush(info,name)
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goto 9999
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endif
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! loop over rows belonging to current process in a block
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! distribution.
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call psb_barrier(ctxt)
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t1 = psb_wtime()
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do ii=1, nlr,nb
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ib = min(nb,nlr-ii+1)
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icoeff = 1
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do k=1,ib
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i=ii+k-1
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! local matrix pointer
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glob_row=myidx(i)
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! compute gridpoint coordinates
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call idx2ijk(ix,iy,iz,glob_row,idim,idim,idim)
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! x, y, z coordinates
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x = (ix-1)*deltah
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y = (iy-1)*deltah
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z = (iz-1)*deltah
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zt(k) = f_(x,y,z)
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! internal point: build discretization
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!
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! term depending on (x-1,y,z)
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!
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val(icoeff) = -a1(x,y,z)/sqdeltah-b1(x,y,z)/deltah2
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if (ix == 1) then
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zt(k) = g(dzero,y,z)*(-val(icoeff)) + zt(k)
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else
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call ijk2idx(icol(icoeff),ix-1,iy,iz,idim,idim,idim)
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irow(icoeff) = glob_row
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icoeff = icoeff+1
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endif
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! term depending on (x,y-1,z)
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val(icoeff) = -a2(x,y,z)/sqdeltah-b2(x,y,z)/deltah2
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if (iy == 1) then
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zt(k) = g(x,dzero,z)*(-val(icoeff)) + zt(k)
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else
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call ijk2idx(icol(icoeff),ix,iy-1,iz,idim,idim,idim)
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irow(icoeff) = glob_row
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icoeff = icoeff+1
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endif
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! term depending on (x,y,z-1)
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val(icoeff)=-a3(x,y,z)/sqdeltah-b3(x,y,z)/deltah2
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if (iz == 1) then
|
||||
zt(k) = g(x,y,dzero)*(-val(icoeff)) + zt(k)
|
||||
else
|
||||
call ijk2idx(icol(icoeff),ix,iy,iz-1,idim,idim,idim)
|
||||
irow(icoeff) = glob_row
|
||||
icoeff = icoeff+1
|
||||
endif
|
||||
|
||||
! term depending on (x,y,z)
|
||||
val(icoeff)=(2*done)*(a1(x,y,z)+a2(x,y,z)+a3(x,y,z))/sqdeltah &
|
||||
& + c(x,y,z)
|
||||
call ijk2idx(icol(icoeff),ix,iy,iz,idim,idim,idim)
|
||||
irow(icoeff) = glob_row
|
||||
icoeff = icoeff+1
|
||||
! term depending on (x,y,z+1)
|
||||
val(icoeff)=-a3(x,y,z)/sqdeltah+b3(x,y,z)/deltah2
|
||||
if (iz == idim) then
|
||||
zt(k) = g(x,y,done)*(-val(icoeff)) + zt(k)
|
||||
else
|
||||
call ijk2idx(icol(icoeff),ix,iy,iz+1,idim,idim,idim)
|
||||
irow(icoeff) = glob_row
|
||||
icoeff = icoeff+1
|
||||
endif
|
||||
! term depending on (x,y+1,z)
|
||||
val(icoeff)=-a2(x,y,z)/sqdeltah+b2(x,y,z)/deltah2
|
||||
if (iy == idim) then
|
||||
zt(k) = g(x,done,z)*(-val(icoeff)) + zt(k)
|
||||
else
|
||||
call ijk2idx(icol(icoeff),ix,iy+1,iz,idim,idim,idim)
|
||||
irow(icoeff) = glob_row
|
||||
icoeff = icoeff+1
|
||||
endif
|
||||
! term depending on (x+1,y,z)
|
||||
val(icoeff)=-a1(x,y,z)/sqdeltah+b1(x,y,z)/deltah2
|
||||
if (ix==idim) then
|
||||
zt(k) = g(done,y,z)*(-val(icoeff)) + zt(k)
|
||||
else
|
||||
call ijk2idx(icol(icoeff),ix+1,iy,iz,idim,idim,idim)
|
||||
irow(icoeff) = glob_row
|
||||
icoeff = icoeff+1
|
||||
endif
|
||||
|
||||
end do
|
||||
call psb_spins(icoeff-1,irow,icol,val,a,desc_a,info)
|
||||
if(info /= psb_success_) exit
|
||||
call psb_geins(ib,myidx(ii:ii+ib-1),zt(1:ib),bv,desc_a,info)
|
||||
if(info /= psb_success_) exit
|
||||
zt(:)=dzero
|
||||
call psb_geins(ib,myidx(ii:ii+ib-1),zt(1:ib),xv,desc_a,info)
|
||||
if(info /= psb_success_) exit
|
||||
end do
|
||||
|
||||
tgen = psb_wtime()-t1
|
||||
if(info /= psb_success_) then
|
||||
info=psb_err_from_subroutine_
|
||||
ch_err='insert rout.'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
deallocate(val,irow,icol)
|
||||
|
||||
call psb_barrier(ctxt)
|
||||
t1 = psb_wtime()
|
||||
call psb_cdasb(desc_a,info,mold=imold)
|
||||
tcdasb = psb_wtime()-t1
|
||||
call psb_barrier(ctxt)
|
||||
t1 = psb_wtime()
|
||||
if (info == psb_success_) then
|
||||
if (present(amold)) then
|
||||
call psb_spasb(a,desc_a,info,mold=amold,bld_and=tnd)
|
||||
else
|
||||
call psb_spasb(a,desc_a,info,afmt=afmt,bld_and=tnd)
|
||||
end if
|
||||
end if
|
||||
call psb_barrier(ctxt)
|
||||
if(info /= psb_success_) then
|
||||
info=psb_err_from_subroutine_
|
||||
ch_err='asb rout.'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
if (info == psb_success_) call psb_geasb(xv,desc_a,info,mold=vmold)
|
||||
if (info == psb_success_) call psb_geasb(bv,desc_a,info,mold=vmold)
|
||||
if(info /= psb_success_) then
|
||||
info=psb_err_from_subroutine_
|
||||
ch_err='asb rout.'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
tasb = psb_wtime()-t1
|
||||
call psb_barrier(ctxt)
|
||||
ttot = psb_wtime() - t0
|
||||
|
||||
call psb_amx(ctxt,talc)
|
||||
call psb_amx(ctxt,tgen)
|
||||
call psb_amx(ctxt,tasb)
|
||||
call psb_amx(ctxt,ttot)
|
||||
if(iam == psb_root_) then
|
||||
tmpfmt = a%get_fmt()
|
||||
write(psb_out_unit,'("The matrix has been generated and assembled in ",a3," format.")')&
|
||||
& tmpfmt
|
||||
write(psb_out_unit,'("-allocation time : ",es12.5)') talc
|
||||
write(psb_out_unit,'("-coeff. gen. time : ",es12.5)') tgen
|
||||
write(psb_out_unit,'("-desc asbly time : ",es12.5)') tcdasb
|
||||
write(psb_out_unit,'("- mat asbly time : ",es12.5)') tasb
|
||||
write(psb_out_unit,'("-total time : ",es12.5)') ttot
|
||||
|
||||
end if
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 call psb_error_handler(ctxt,err_act)
|
||||
|
||||
return
|
||||
end subroutine psb_d_gen_pde3d
|
||||
|
||||
|
||||
end module psb_d_pde3d_mod
|
||||
|
||||
|
||||
program pdgenmv
|
||||
use psb_base_mod
|
||||
use psb_util_mod
|
||||
use psb_ext_mod
|
||||
#if defined(HAVE_OPENACC)
|
||||
use psb_oacc_mod
|
||||
#endif
|
||||
use psb_d_pde3d_mod
|
||||
implicit none
|
||||
|
||||
! input parameters
|
||||
character(len=5) :: acfmt, agfmt
|
||||
integer :: idim
|
||||
logical :: tnd
|
||||
! miscellaneous
|
||||
real(psb_dpk_), parameter :: one = 1.d0
|
||||
real(psb_dpk_) :: t1, t2, tprec, flops, tflops,&
|
||||
& tt1, tt2, gt1, gt2, gflops, bdwdth,&
|
||||
& tcnvcsr, tcnvc1, tcnvgpu, tcnvg1
|
||||
|
||||
! sparse matrix and preconditioner
|
||||
type(psb_dspmat_type) :: a, agpu, aux_a
|
||||
! descriptor
|
||||
type(psb_desc_type) :: desc_a
|
||||
! dense matrices
|
||||
type(psb_d_vect_type), target :: xv, bv, xg, bg
|
||||
#ifdef HAVE_OPENACC
|
||||
type(psb_d_vect_oacc), target :: vmold
|
||||
type(psb_i_vect_oacc ) :: imold
|
||||
type(psb_d_oacc_csr_sparse_mat), target :: acsrg
|
||||
type(psb_d_oacc_ell_sparse_mat), target :: aellg
|
||||
type(psb_d_oacc_hll_sparse_mat), target :: ahllg
|
||||
#endif
|
||||
real(psb_dpk_), allocatable :: x1(:), x2(:), x0(:)
|
||||
! blacs parameters
|
||||
type(psb_ctxt_type) :: ctxt
|
||||
integer :: iam, np
|
||||
|
||||
! solver parameters
|
||||
integer(psb_epk_) :: amatsize, precsize, descsize, annz, nbytes
|
||||
real(psb_dpk_) :: err, eps, tnv, tng,tdot, dnrm2,ddot
|
||||
integer, parameter :: ntests=20, ngpu=5, ncnv=2
|
||||
type(psb_d_coo_sparse_mat), target :: acoo
|
||||
type(psb_d_csr_sparse_mat), target :: acsr
|
||||
type(psb_d_ell_sparse_mat), target :: aell
|
||||
type(psb_d_hll_sparse_mat), target :: ahll
|
||||
type(psb_d_dia_sparse_mat), target :: adia
|
||||
type(psb_d_hdia_sparse_mat), target :: ahdia
|
||||
class(psb_d_base_sparse_mat), pointer :: agmold, acmold
|
||||
! other variables
|
||||
logical, parameter :: dump=.false.
|
||||
integer(psb_ipk_) :: info, i, j, nr, nrg
|
||||
integer(psb_lpk_) :: ig
|
||||
character(len=20) :: name,ch_err
|
||||
character(len=40) :: fname
|
||||
|
||||
info=psb_success_
|
||||
|
||||
|
||||
call psb_init(ctxt)
|
||||
call psb_info(ctxt,iam,np)
|
||||
|
||||
#if defined(HAVE_OPENACC)
|
||||
call psb_oacc_init(ctxt)
|
||||
#endif
|
||||
|
||||
if (iam < 0) then
|
||||
! This should not happen, but just in case
|
||||
call psb_exit(ctxt)
|
||||
stop
|
||||
endif
|
||||
if(psb_get_errstatus() /= 0) goto 9999
|
||||
name='pdegenmv-cuda'
|
||||
!
|
||||
! Hello world
|
||||
!
|
||||
if (iam == psb_root_) then
|
||||
write(*,*) 'Welcome to PSBLAS version: ',psb_version_string_
|
||||
write(*,*) 'This is the ',trim(name),' sample program'
|
||||
end if
|
||||
#ifdef HAVE_OPENACC
|
||||
write(*,*) 'Process ',iam,' running on OPENACC: '
|
||||
#endif
|
||||
!
|
||||
! get parameters
|
||||
!
|
||||
call get_parms(ctxt,acfmt,agfmt,idim,tnd)
|
||||
call psb_init_timers()
|
||||
!
|
||||
! allocate and fill in the coefficient matrix and initial vectors
|
||||
!
|
||||
call psb_barrier(ctxt)
|
||||
t1 = psb_wtime()
|
||||
call psb_gen_pde3d(ctxt,idim,a,bv,xv,desc_a,'CSR ',info,partition=3,tnd=tnd)
|
||||
call psb_barrier(ctxt)
|
||||
t2 = psb_wtime() - t1
|
||||
if(info /= psb_success_) then
|
||||
info=psb_err_from_subroutine_
|
||||
ch_err='create_matrix'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
if (iam == psb_root_) write(psb_out_unit,'("Overall matrix creation time : ",es12.5)')t2
|
||||
if (iam == psb_root_) write(psb_out_unit,'(" ")')
|
||||
|
||||
if (dump) then
|
||||
write(fname,'(a,i3.3,a,i3.3,a,i3.3,a)') 'pde',idim,'-',iam,'-',np,'.mtx'
|
||||
call a%print(fname,head='PDEGEN test matrix')
|
||||
end if
|
||||
|
||||
select case(psb_toupper(acfmt))
|
||||
case('ELL')
|
||||
acmold => aell
|
||||
case('HLL')
|
||||
acmold => ahll
|
||||
case('DIA')
|
||||
acmold => adia
|
||||
case('HDIA')
|
||||
acmold => ahdia
|
||||
case('CSR')
|
||||
acmold => acsr
|
||||
case('COO')
|
||||
acmold => acoo
|
||||
case default
|
||||
write(*,*) 'Unknown format defaulting to HLL'
|
||||
acmold => ahll
|
||||
end select
|
||||
call a%cscnv(info,mold=acmold)
|
||||
if ((info /= 0).or.(psb_get_errstatus()/=0)) then
|
||||
write(0,*) 'From cscnv ',info
|
||||
call psb_error()
|
||||
stop
|
||||
end if
|
||||
|
||||
#ifdef HAVE_OPENACC
|
||||
select case(psb_toupper(agfmt))
|
||||
case('ELG')
|
||||
agmold => aellg
|
||||
case('HLG')
|
||||
agmold => ahllg
|
||||
case('CSRG')
|
||||
agmold => acsrg
|
||||
case default
|
||||
write(*,*) 'Unknown format defaulting to HLG'
|
||||
agmold => ahllg
|
||||
end select
|
||||
call a%cscnv(agpu,info,mold=agmold)
|
||||
if ((info /= 0).or.(psb_get_errstatus()/=0)) then
|
||||
write(0,*) 'From cscnv ',info
|
||||
call psb_error()
|
||||
stop
|
||||
end if
|
||||
call desc_a%cnv(mold=imold)
|
||||
|
||||
call psb_geasb(bg,desc_a,info,scratch=.true.,mold=vmold)
|
||||
call psb_geasb(xg,desc_a,info,scratch=.true.,mold=vmold)
|
||||
#endif
|
||||
nr = desc_a%get_local_rows()
|
||||
nrg = desc_a%get_global_rows()
|
||||
call psb_geall(x0,desc_a,info)
|
||||
do i=1, nr
|
||||
call desc_a%l2g(i,ig,info)
|
||||
x0(i) = 1.0 + (1.0*ig)/(nrg**2)
|
||||
end do
|
||||
call a%cscnv(aux_a,info,mold=acoo)
|
||||
tcnvcsr = 0
|
||||
tcnvgpu = 0
|
||||
call psb_geall(x1,desc_a,info)
|
||||
do j=1, ncnv
|
||||
call aux_a%cscnv(a,info,mold=acoo)
|
||||
call psb_barrier(ctxt)
|
||||
t1 = psb_wtime()
|
||||
call a%cscnv(info,mold=acmold)
|
||||
t2 = psb_Wtime() -t1
|
||||
call psb_amx(ctxt,t2)
|
||||
tcnvcsr = tcnvcsr + t2
|
||||
if (j==1) tcnvc1 = t2
|
||||
call psb_geasb(x1,desc_a,info)
|
||||
call xv%bld(x0)
|
||||
call psb_geasb(bv,desc_a,info,scratch=.true.)
|
||||
|
||||
#ifdef HAVE_OPENACC
|
||||
|
||||
call aux_a%cscnv(agpu,info,mold=acoo)
|
||||
call xg%bld(x0,mold=vmold)
|
||||
call psb_geasb(bg,desc_a,info,scratch=.true.,mold=vmold)
|
||||
call psb_barrier(ctxt)
|
||||
t1 = psb_wtime()
|
||||
call agpu%cscnv(info,mold=agmold)
|
||||
!call psb_cuda_DeviceSync()
|
||||
t2 = psb_Wtime() -t1
|
||||
call psb_amx(ctxt,t2)
|
||||
if (j==1) tcnvg1 = t2
|
||||
tcnvgpu = tcnvgpu + t2
|
||||
#endif
|
||||
end do
|
||||
|
||||
|
||||
call xv%set(x0)
|
||||
call psb_barrier(ctxt)
|
||||
t1 = psb_wtime()
|
||||
do i=1,ntests
|
||||
call psb_spmm(done,a,xv,dzero,bv,desc_a,info)
|
||||
end do
|
||||
call psb_barrier(ctxt)
|
||||
t2 = psb_wtime() - t1
|
||||
call psb_amx(ctxt,t2)
|
||||
|
||||
#ifdef HAVE_OPENACC
|
||||
call xg%set(x0)
|
||||
|
||||
! FIXME: cache flush needed here
|
||||
x1 = bv%get_vect()
|
||||
x2 = bg%get_vect()
|
||||
|
||||
call psb_barrier(ctxt)
|
||||
tt1 = psb_wtime()
|
||||
do i=1,ntests
|
||||
call psb_spmm(done,agpu,xv,dzero,bg,desc_a,info)
|
||||
if ((info /= 0).or.(psb_get_errstatus()/=0)) then
|
||||
write(0,*) 'From 1 spmm',info,i,ntests
|
||||
call psb_error()
|
||||
stop
|
||||
end if
|
||||
|
||||
end do
|
||||
!call psb_cuda_DeviceSync()
|
||||
call psb_barrier(ctxt)
|
||||
tt2 = psb_wtime() - tt1
|
||||
call psb_amx(ctxt,tt2)
|
||||
x1 = bv%get_vect()
|
||||
x2 = bg%get_vect()
|
||||
nr = desc_a%get_local_rows()
|
||||
eps = maxval(abs(x1(1:nr)-x2(1:nr)))
|
||||
call psb_amx(ctxt,eps)
|
||||
if (iam==0) write(*,*) 'Max diff on xGPU',eps
|
||||
|
||||
! FIXME: cache flush needed here
|
||||
call xg%set(x0)
|
||||
call xg%sync()
|
||||
call psb_barrier(ctxt)
|
||||
gt1 = psb_wtime()
|
||||
do i=1,ntests*ngpu
|
||||
call psb_spmm(done,agpu,xg,dzero,bg,desc_a,info)
|
||||
! For timing purposes we need to make sure all threads
|
||||
! in the device are done.
|
||||
if ((info /= 0).or.(psb_get_errstatus()/=0)) then
|
||||
write(0,*) 'From 2 spmm',info,i,ntests
|
||||
call psb_error()
|
||||
stop
|
||||
end if
|
||||
|
||||
end do
|
||||
!call psb_cuda_DeviceSync()
|
||||
call psb_barrier(ctxt)
|
||||
gt2 = psb_wtime() - gt1
|
||||
call psb_amx(ctxt,gt2)
|
||||
call bg%sync()
|
||||
x1 = bv%get_vect()
|
||||
x2 = bg%get_vect()
|
||||
tnv = psb_genrm2(bv,desc_a,info)
|
||||
tng = psb_genrm2(bg,desc_a,info)
|
||||
tdot = psb_gedot(bg,bg,desc_a,info)
|
||||
write(0,*) ' bv ',tnv,' bg ',tng, ' dot ',tdot,eps,&
|
||||
& dnrm2(desc_a%get_local_rows(),x2,1),&
|
||||
& ddot(desc_a%get_local_rows(),x1,1,x2,1)
|
||||
call psb_geaxpby(-done,bg,+done,bv,desc_a,info)
|
||||
eps = psb_geamax(bv,desc_a,info)
|
||||
|
||||
call psb_amx(ctxt,t2)
|
||||
eps = maxval(abs(x1(1:nr)-x2(1:nr)))
|
||||
call psb_amx(ctxt,eps)
|
||||
if (iam==0) write(*,*) 'Max diff on GPU',eps
|
||||
if (dump) then
|
||||
write(fname,'(a,i3.3,a,i3.3,a)')'XCPU-out-',iam,'-',np,'.mtx'
|
||||
call mm_array_write(x1(1:nr),'Local part CPU',info,filename=fname)
|
||||
write(fname,'(a,i3.3,a,i3.3,a)')'XGPU-out-',iam,'-',np,'.mtx'
|
||||
call mm_array_write(x2(1:nr),'Local part GPU',info,filename=fname)
|
||||
end if
|
||||
|
||||
#endif
|
||||
annz = a%get_nzeros()
|
||||
amatsize = a%sizeof()
|
||||
descsize = psb_sizeof(desc_a)
|
||||
call psb_sum(ctxt,nr)
|
||||
call psb_sum(ctxt,annz)
|
||||
call psb_sum(ctxt,amatsize)
|
||||
call psb_sum(ctxt,descsize)
|
||||
|
||||
if (iam == psb_root_) then
|
||||
write(psb_out_unit,&
|
||||
& '("Matrix: ell1 ",i0)') idim
|
||||
write(psb_out_unit,&
|
||||
&'("Test on : ",i20," processors")') np
|
||||
write(psb_out_unit,&
|
||||
&'("Size of matrix : ",i20," ")') nr
|
||||
write(psb_out_unit,&
|
||||
&'("Number of nonzeros : ",i20," ")') annz
|
||||
write(psb_out_unit,&
|
||||
&'("Memory occupation : ",i20," ")') amatsize
|
||||
flops = ntests*(2.d0*annz)
|
||||
tflops = flops
|
||||
gflops = flops * ngpu
|
||||
write(psb_out_unit,'("Storage type for A: ",a)') a%get_fmt()
|
||||
#ifdef HAVE_OPENACC
|
||||
write(psb_out_unit,'("Storage type for AGPU: ",a)') agpu%get_fmt()
|
||||
write(psb_out_unit,'("Time to convert A from COO to CPU (1): ",F20.9)')&
|
||||
& tcnvc1
|
||||
write(psb_out_unit,'("Time to convert A from COO to CPU (t): ",F20.9)')&
|
||||
& tcnvcsr
|
||||
write(psb_out_unit,'("Time to convert A from COO to CPU (a): ",F20.9)')&
|
||||
& tcnvcsr/ncnv
|
||||
write(psb_out_unit,'("Time to convert A from COO to GPU (1): ",F20.9)')&
|
||||
& tcnvg1
|
||||
write(psb_out_unit,'("Time to convert A from COO to GPU (t): ",F20.9)')&
|
||||
& tcnvgpu
|
||||
write(psb_out_unit,'("Time to convert A from COO to GPU (a): ",F20.9)')&
|
||||
& tcnvgpu/ncnv
|
||||
|
||||
#endif
|
||||
write(psb_out_unit,&
|
||||
& '("Number of flops (",i0," prod) : ",F20.0," ")') &
|
||||
& ntests,flops
|
||||
|
||||
flops = flops / (t2)
|
||||
tflops = tflops / (tt2)
|
||||
gflops = gflops / (gt2)
|
||||
|
||||
write(psb_out_unit,'("Time for ",i6," products (s) (CPU) : ",F20.3)')&
|
||||
& ntests,t2
|
||||
write(psb_out_unit,'("Time per product (ms) (CPU) : ",F20.3)')&
|
||||
& t2*1.d3/(1.d0*ntests)
|
||||
write(psb_out_unit,'("MFLOPS (CPU) : ",F20.3)')&
|
||||
& flops/1.d6
|
||||
#ifdef HAVE_OPENACC
|
||||
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
|
||||
#ifdef HAVE_OPENACC
|
||||
bdwdth = ngpu*ntests*nbytes/(gt2*1.d6)
|
||||
write(psb_out_unit,'("MBYTES/S sust. effective bandwidth (GPU) : ",F20.3)') bdwdth
|
||||
!bdwdth = psb_cuda_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 HAVE_OPENACC
|
||||
call psb_oacc_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(*,*) 'GPU 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
|
||||
Loading…
Reference in New Issue