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#!/bin/sh
# autopkgtest check: Build and run a simple program against libgfortran,
# to verify basic compile-time and run-time linking functionality.
set -e
CC=gcc-9
F95=gfortran-9
WORKDIR=$(mktemp -d)
trap "rm -rf $WORKDIR" 0 INT QUIT ABRT PIPE TERM
cd $WORKDIR
cat <<EOF > hello-gomp.c
#include <omp.h>
#include <stdio.h>
#include <stdlib.h>
int main (int argc, char *argv[]) {
int nthreads, tid;
/* Fork a team of threads giving them their own copies of variables */
#pragma omp parallel private(nthreads, tid)
{
/* Obtain thread number */
tid = omp_get_thread_num();
printf("Hello World from thread = %d\n", tid);
/* Only master thread does this */
if (tid == 0)
{
nthreads = omp_get_num_threads();
printf("Number of threads = %d\n", nthreads);
}
} /* All threads join master thread and disband */
}
EOF
$CC -fopenmp -o gctest hello-gomp.c
echo "build: OK"
ldd gctest
[ -x gctest ]
./gctest
echo "run: OK"
cat <<EOF > hello-gomp.f
program omp_par_do
implicit none
integer, parameter :: n = 100
real, dimension(n) :: dat, result
integer :: i
!$OMP PARALLEL DO
do i = 1, n
result(i) = my_function(dat(i))
end do
!$OMP END PARALLEL DO
contains
function my_function(d) result(y)
real, intent(in) :: d
real :: y
! do something complex with data to calculate y
end function my_function
end program omp_par_do
EOF
$F95 -fopenmp -o gftest hello-gomp.f
echo "build: OK"
ldd gftest
[ -x gftest ]
./gftest
echo "run: OK"
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