quantum-espresso/UtilXlib/tests/test_mp_bcast_rv_buffer_gpu...

58 lines
1.3 KiB
Fortran

#if defined(__CUDA)
PROGRAM test_mp_bcast_rv_buffer_gpu
!
! Simple program to check the functionalities of test_mp_bcast_rv
! with buffer implementation.
!
USE parallel_include
USE cudafor
USE util_param, ONLY : DP
USE mp, ONLY : mp_bcast
USE mp_world, ONLY : mp_world_start, mp_world_end, mpime, &
root, nproc, world_comm
USE tester
IMPLICIT NONE
!
TYPE(tester_t) :: test
INTEGER :: world_group = 0
! test variable
REAL(DP), DEVICE :: rv_d(200001)
REAL(DP) :: rv_h(200001)
!
CALL test%init()
#if defined(__MPI)
world_group = MPI_COMM_WORLD
#endif
CALL mp_world_start(world_group)
rv_h(:) = mpime+0.5
!
rv_d = rv_h
CALL mp_bcast(rv_d, root, world_comm)
rv_h = rv_d
!
CALL test%assert_equal(ALL(rv_h .eq. 0.5) , .true. )
!
rv_h(:) = mpime+0.5
rv_d = rv_h
CALL mp_bcast(rv_d, nproc-1, world_comm)
rv_h = rv_d
!
CALL test%assert_equal(ALL(rv_h .eq. nproc-0.5) , .true. )
!
CALL collect_results(test)
!
CALL mp_world_end()
!
IF (mpime .eq. 0) CALL test%print()
!
END PROGRAM test_mp_bcast_rv_buffer_gpu
#else
PROGRAM test_mp_bcast_rv_buffer_gpu
CALL no_test()
END PROGRAM test_mp_bcast_rv_buffer_gpu
#endif