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[nvptx] Enable setting vector length using -fopenacc-dim -- testcases

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Add some test-cases that set vector length using -fopenacc-dim.

2019-01-12  Tom de Vries  <tdevries@suse.de>

	* testsuite/libgomp.oacc-c-c++-common/pr85486-2.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/vector-length-128-2.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/vector-length-128-5.c: New test.
	* testsuite/libgomp.oacc-fortran/gemm-2.f90: New test.

From-SVN: r267897
This commit is contained in:
Tom de Vries 2019-01-12 22:19:31 +00:00 committed by Tom de Vries
parent 2c2ff1684d
commit efb56ae82b
5 changed files with 219 additions and 0 deletions
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7
libgomp/ChangeLog
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2019-01-12 Tom de Vries <tdevries@suse.de>
* testsuite/libgomp.oacc-c-c++-common/pr85486-2.c: New test.
* testsuite/libgomp.oacc-c-c++-common/vector-length-128-2.c: New test.
* testsuite/libgomp.oacc-c-c++-common/vector-length-128-5.c: New test.
* testsuite/libgomp.oacc-fortran/gemm-2.f90: New test.
2019-01-12 Tom de Vries <tdevries@suse.de>
* plugin/plugin-nvptx.c (nvptx_exec): Update error message.

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libgomp/testsuite/libgomp.oacc-c-c++-common/pr85486-2.c Normal file
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/* { dg-do run { target openacc_nvidia_accel_selected } } */
/* { dg-additional-options "-fopenacc-dim=::128" } */
/* Minimized from ref-1.C. */
#include <stdio.h>
#pragma acc routine vector
void __attribute__((noinline, noclone))
Vector (int *ptr, int n, const int inc)
{
#pragma acc loop vector
for (unsigned ix = 0; ix < n; ix++)
ptr[ix] += inc;
}
int
main (void)
{
const int n = 32, m=32;
int ary[m][n];
unsigned ix, iy;
for (ix = m; ix--;)
for (iy = n; iy--;)
ary[ix][iy] = (1 << 16) + (ix << 8) + iy;
int err = 0;
#pragma acc parallel copy (ary)
{
Vector (&ary[0][0], m * n, (1 << 24) - (1 << 16));
}
for (ix = m; ix--;)
for (iy = n; iy--;)
if (ary[ix][iy] != ((1 << 24) + (ix << 8) + iy))
{
printf ("ary[%u][%u] = %x expected %x\n",
ix, iy, ary[ix][iy], ((1 << 24) + (ix << 8) + iy));
err++;
}
if (err)
{
printf ("%d failed\n", err);
return 1;
}
return 0;
}

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libgomp/testsuite/libgomp.oacc-c-c++-common/vector-length-128-2.c Normal file
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/* { dg-do run { target openacc_nvidia_accel_selected } } */
/* { dg-additional-options "-fopenacc-dim=::128" } */
/* { dg-additional-options "-foffload=-fdump-tree-oaccdevlow" } */
/* { dg-set-target-env-var "GOMP_DEBUG" "1" } */
#include <stdlib.h>
#define N 1024
unsigned int a[N];
unsigned int b[N];
unsigned int c[N];
unsigned int n = N;
int
main (void)
{
for (unsigned int i = 0; i < n; ++i)
{
a[i] = i % 3;
b[i] = i % 5;
}
#pragma acc parallel copyin (a,b) copyout (c)
{
#pragma acc loop vector
for (unsigned int i = 0; i < n; i++)
c[i] = a[i] + b[i];
}
for (unsigned int i = 0; i < n; ++i)
if (c[i] != (i % 3) + (i % 5))
abort ();
return 0;
}
/* { dg-final { scan-offload-tree-dump "__attribute__\\(\\(oacc function \\(1, 1, 128\\)" "oaccdevlow" } } */
/* { dg-output "nvptx_exec: kernel main\\\$_omp_fn\\\$0: launch gangs=1, workers=1, vectors=128" } */

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libgomp/testsuite/libgomp.oacc-c-c++-common/vector-length-128-5.c Normal file
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/* { dg-do run { target openacc_nvidia_accel_selected } } */
/* { dg-additional-options "-fopenacc-dim=:2:128" } */
/* { dg-additional-options "-foffload=-fdump-tree-oaccdevlow" } */
/* { dg-set-target-env-var "GOMP_DEBUG" "1" } */
#include <stdlib.h>
#define N 1024
unsigned int a[N];
unsigned int b[N];
unsigned int c[N];
unsigned int n = N;
int
main (void)
{
for (unsigned int i = 0; i < n; ++i)
{
a[i] = i % 3;
b[i] = i % 5;
}
#pragma acc parallel copyin (a,b) copyout (c)
{
#pragma acc loop worker
for (unsigned int i = 0; i < 4; i++)
#pragma acc loop vector
for (unsigned int j = 0; j < n / 4; j++)
c[(i * N / 4) + j] = a[(i * N / 4) + j] + b[(i * N / 4) + j];
}
for (unsigned int i = 0; i < n; ++i)
if (c[i] != (i % 3) + (i % 5))
abort ();
return 0;
}
/* { dg-final { scan-offload-tree-dump "__attribute__\\(\\(oacc function \\(1, 2, 128\\)" "oaccdevlow" } } */
/* { dg-output "nvptx_exec: kernel main\\\$_omp_fn\\\$0: launch gangs=1, workers=2, vectors=128" } */

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libgomp/testsuite/libgomp.oacc-fortran/gemm-2.f90 Normal file
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! Exercise three levels of parallelism using SGEMM from BLAS.
! { dg-do run }
! { dg-additional-options "-fopenacc-dim=::128" }
! Implicitly set vector_length to 128 using -fopenacc-dim.
subroutine openacc_sgemm (m, n, k, alpha, a, b, beta, c)
integer :: m, n, k
real :: alpha, beta
real :: a(k,*), b(k,*), c(m,*)
integer :: i, j, l
real :: temp
!$acc parallel loop copy(c(1:m,1:n)) copyin(a(1:k,1:m),b(1:k,1:n)) firstprivate (temp)
do j = 1, n
!$acc loop
do i = 1, m
temp = 0.0
!$acc loop reduction(+:temp)
do l = 1, k
temp = temp + a(l,i)*b(l,j)
end do
if(beta == 0.0) then
c(i,j) = alpha*temp
else
c(i,j) = alpha*temp + beta*c(i,j)
end if
end do
end do
end subroutine openacc_sgemm
subroutine host_sgemm (m, n, k, alpha, a, b, beta, c)
integer :: m, n, k
real :: alpha, beta
real :: a(k,*), b(k,*), c(m,*)
integer :: i, j, l
real :: temp
do j = 1, n
do i = 1, m
temp = 0.0
do l = 1, k
temp = temp + a(l,i)*b(l,j)
end do
if(beta == 0.0) then
c(i,j) = alpha*temp
else
c(i,j) = alpha*temp + beta*c(i,j)
end if
end do
end do
end subroutine host_sgemm
program main
integer, parameter :: M = 100, N = 50, K = 2000
real :: a(K, M), b(K, N), c(M, N), d (M, N), e (M, N)
real alpha, beta
integer i, j
a(:,:) = 1.0
b(:,:) = 0.25
c(:,:) = 0.0
d(:,:) = 0.0
e(:,:) = 0.0
alpha = 1.05
beta = 1.25
call openacc_sgemm (M, N, K, alpha, a, b, beta, c)
call host_sgemm (M, N, K, alpha, a, b, beta, e)
do i = 1, m
do j = 1, n
if (c(i,j) /= e(i,j)) call abort
end do
end do
end program main