Test which checks the omp_test_nest_lock function.
2.0
omp_test_nest_lock
omp flush
INTEGER FUNCTION omp_test_nest_lock()
IMPLICIT NONE
INTEGER result
!result is:
! 0 -- if the test fails
! 1 -- if the test succeeds
INTEGER nr_threads_in_single
INTEGER nr_iterations
INTEGER i
include "omp_lib.h"
INTEGER (KIND=OMP_NEST_LOCK_KIND) :: lock
COMMON /orphvars/ lock
! INTEGER lck
INCLUDE "omp_testsuite.f"
nr_iterations=0
nr_threads_in_single=0
CALL OMP_INIT_NEST_LOCK(lock)
result=0
!$omp parallel shared(lock,nr_threads_in_single,nr_iterations,result)
!$omp do
DO i=1,LOOPCOUNT
DO WHILE(OMP_TEST_NEST_LOCK(lock) .EQ. 0)
END DO
!$omp flush
nr_threads_in_single=nr_threads_in_single+1
!$omp flush
nr_iterations=nr_iterations+1
nr_threads_in_single=nr_threads_in_single-1
result=result+nr_threads_in_single
CALL OMP_UNSET_NEST_LOCK(lock)
END DO
!$omp end do
!$omp end parallel
CALL omp_destroy_nest_lock(lock)
! print *, result, nr_iterations
IF(result.EQ.0 .AND. nr_iterations .EQ. LOOPCOUNT) THEN
=1
ELSE
=0
ENDIF
END FUNCTION