quantum-espresso/UtilXlib/tests/test_mp_alltoall.tmpl

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! Implemented: it, ct
PROGRAM test_mp_alltoall_{vname}
!
! Simple program to check the functionalities of mp_alltoall.
!
USE parallel_include
USE util_param, ONLY : DP
USE mp, ONLY : mp_alltoall
USE mp_world, ONLY : mp_world_start, mp_world_end, mpime, &
root, nproc, world_comm
USE tester
IMPLICIT NONE
!
TYPE(tester_t) :: test
INTEGER :: rnk, valid_sum, world_group = 0
INTEGER, PARAMETER :: datasize = {datasize}
!
! Stuff for comparing with CPU implementation
integer :: i
!
! test variable
{type}, ALLOCATABLE :: snd_{vname}_h{all}
{type}, ALLOCATABLE :: rcv_{vname}_h{all}
!
CALL test%init()
#if defined(__MPI)
world_group = MPI_COMM_WORLD
#endif
CALL mp_world_start(world_group)
!
ALLOCATE(snd_{vname}_h(datasize, datasize, nproc))
ALLOCATE(rcv_{vname}_h(datasize, datasize, nproc))
snd_{vname}_h = mpime + 1
!mp_alltoall (sndbuf, rcvbuf, gid)
CALL mp_alltoall(snd_{vname}_h, rcv_{vname}_h, world_comm)
!
DO i = 1, nproc
CALL test%assert_equal(SUM(rcv_{vname}_h(:,:,i)) , {typeconv} (i*(datasize**2)))
END DO
!
DEALLOCATE(snd_{vname}_h, rcv_{vname}_h)
!
CALL collect_results(test)
!
CALL mp_world_end()
!
IF (mpime .eq. 0) CALL test%print()
!
END PROGRAM test_mp_alltoall_{vname}