! Implemented: i1, iv, im, rm, cm

#if defined(__CUDA)

PROGRAM test_mp_circular_shift_left_{vname}_gpu
!
! Simple program to check the functionalities of test_mp_circular_shift_left.
!  N.B : mp_circular_shift_left is doing a allreduce!
!
    USE cudafor
    USE parallel_include
    USE util_param, ONLY : DP
    USE mp, ONLY : mp_circular_shift_left
    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
    INTEGER, PARAMETER :: datasize = {datasize}
    !
    ! Stuff for comparing with CPU implementation
    integer :: i
    REAL(DP) :: rnd{size}
    !
    ! test variable
    {type}, DEVICE :: {vname}_d{size}
    {type} :: {vname}_h{size}
    {type} :: aux_h{size}
    
    !
    CALL test%init()
    
#if defined(__MPI)    
    world_group = MPI_COMM_WORLD
#endif
    CALL mp_world_start(world_group)
    {vname}_h = mpime
    {vname}_d = {vname}_h
    !mp_circular_shift_left    (msg_dest,  msg_sour, mpime, dest, sour, ip, gid)
    CALL mp_circular_shift_left({vname}_d, 0, world_comm)
    {vname}_h = {vname}_d
    !
    CALL test%assert_{compare}({sumf}({vname}_h - {typeconv}(MODULO(mpime+1, nproc))), {typeconv}(0) )
    !
    !
    ! Test against CPU implementation
    CALL save_random_seed("test_mp_circular_shift_left_{vname}_gpu", mpime)
    !
    DO i = 0, nproc-1
      CALL RANDOM_NUMBER(rnd)
      {vname}_h = {typeconv} ( 10.0 * rnd )
      {vname}_d = {vname}_h
      aux_h = 0
      CALL mp_circular_shift_left({vname}_d, 0, world_comm)
      CALL mp_circular_shift_left({vname}_h, 0, world_comm)
      aux_h = {vname}_d
      CALL test%assert_{compare}({sumf}({vname}_h) , {sumf}(aux_h) )
    END DO
    !
    CALL collect_results(test)
    !
    CALL mp_world_end()
    !
    IF (mpime .eq. 0) CALL test%print()
    !
END PROGRAM test_mp_circular_shift_left_{vname}_gpu
#else
PROGRAM test_mp_circular_shift_left_{vname}_gpu
    CALL no_test()
END PROGRAM test_mp_circular_shift_left_{vname}_gpu
#endif
