m_cuda_sendrecv Module


Uses

  • module~~m_cuda_sendrecv~~UsesGraph module~m_cuda_sendrecv m_cuda_sendrecv cudafor cudafor module~m_cuda_sendrecv->cudafor m_mpi m_mpi module~m_cuda_sendrecv->m_mpi module~m_common m_common module~m_cuda_sendrecv->module~m_common module~m_cuda_errors m_cuda_errors module~m_cuda_sendrecv->module~m_cuda_errors module~m_logger m_logger module~m_cuda_sendrecv->module~m_logger module~m_common->m_mpi module~m_common->module~m_logger module~m_cuda_errors->cudafor module~m_cuda_errors->module~m_logger module~m_logger->m_mpi iso_fortran_env iso_fortran_env module~m_logger->iso_fortran_env

Used by

  • module~~m_cuda_sendrecv~~UsedByGraph module~m_cuda_sendrecv m_cuda_sendrecv module~m_cuda_backend m_cuda_backend module~m_cuda_backend->module~m_cuda_sendrecv module~m_cuda_exec_dist m_cuda_exec_dist module~m_cuda_backend->module~m_cuda_exec_dist module~m_cuda_poisson_fft m_cuda_poisson_fft module~m_cuda_backend->module~m_cuda_poisson_fft module~m_cuda_exec_dist->module~m_cuda_sendrecv module~m_cuda_poisson_fft->module~m_cuda_sendrecv module~m_backend_setup m_backend_setup module~m_backend_setup->module~m_cuda_backend module~m_cuda_memcheck_device m_cuda_memcheck_device module~m_cuda_memcheck_device->module~m_cuda_poisson_fft module~m_memcheck_estimate m_memcheck_estimate module~m_memcheck_estimate->module~m_cuda_poisson_fft module~m_memcheck_context m_memcheck_context module~m_memcheck_estimate->module~m_memcheck_context module~m_memcheck_build m_memcheck_build module~m_memcheck_build->module~m_backend_setup module~m_memcheck_build->module~m_memcheck_estimate module~m_memcheck_build->module~m_memcheck_context module~m_memcheck_report m_memcheck_report module~m_memcheck_build->module~m_memcheck_report module~m_memcheck_context->module~m_cuda_memcheck_device module~m_memcheck_report->module~m_cuda_memcheck_device module~m_memcheck_report->module~m_memcheck_estimate module~m_memcheck_report->module~m_memcheck_context program~x3d2_memcheck x3d2_memcheck program~x3d2_memcheck->module~m_memcheck_estimate program~x3d2_memcheck->module~m_memcheck_build program~x3d2_memcheck->module~m_memcheck_context program~x3d2_memcheck->module~m_memcheck_report program~x3d2_poisson_solver x3d2_poisson_solver program~x3d2_poisson_solver->module~m_backend_setup program~xcompact xcompact program~xcompact->module~m_backend_setup

Variables

Type Visibility Attributes Name Initial
integer(kind=cuda_stream_kind), public, parameter :: default_stream = 0

Subroutines

public subroutine sendrecv_fields(f_recv_s, f_recv_e, f_send_s, f_send_e, n_data, nproc, prev, next)

Arguments

Type IntentOptional Attributes Name
real(kind=dp), intent(out), device, dimension(:, :, :) :: f_recv_s
real(kind=dp), intent(out), device, dimension(:, :, :) :: f_recv_e
real(kind=dp), intent(in), device, dimension(:, :, :) :: f_send_s
real(kind=dp), intent(in), device, dimension(:, :, :) :: f_send_e
integer, intent(in) :: n_data
integer, intent(in) :: nproc
integer, intent(in) :: prev
integer, intent(in) :: next

public subroutine sendrecv_3fields(f1_recv_s, f1_recv_e, f2_recv_s, f2_recv_e, f3_recv_s, f3_recv_e, f1_send_s, f1_send_e, f2_send_s, f2_send_e, f3_send_s, f3_send_e, n_data, nproc, prev, next)

Arguments

Type IntentOptional Attributes Name
real(kind=dp), intent(out), device, dimension(:, :, :) :: f1_recv_s
real(kind=dp), intent(out), device, dimension(:, :, :) :: f1_recv_e
real(kind=dp), intent(out), device, dimension(:, :, :) :: f2_recv_s
real(kind=dp), intent(out), device, dimension(:, :, :) :: f2_recv_e
real(kind=dp), intent(out), device, dimension(:, :, :) :: f3_recv_s
real(kind=dp), intent(out), device, dimension(:, :, :) :: f3_recv_e
real(kind=dp), intent(in), device, dimension(:, :, :) :: f1_send_s
real(kind=dp), intent(in), device, dimension(:, :, :) :: f1_send_e
real(kind=dp), intent(in), device, dimension(:, :, :) :: f2_send_s
real(kind=dp), intent(in), device, dimension(:, :, :) :: f2_send_e
real(kind=dp), intent(in), device, dimension(:, :, :) :: f3_send_s
real(kind=dp), intent(in), device, dimension(:, :, :) :: f3_send_e
integer, intent(in) :: n_data
integer, intent(in) :: nproc
integer, intent(in) :: prev
integer, intent(in) :: next

public subroutine copy_halo(dst, src, n_data)

Periodic wrap-around on a single rank: copies the first n_data elements of a halo buffer, the groups of the direction being exchanged. The buffers are sized for the direction with the most groups, so a whole-array assignment would copy that maximum on every exchange (16 times the data in use on an elongated mesh).

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Arguments

Type IntentOptional Attributes Name
real(kind=dp), intent(inout), device, dimension(:, :, :) :: dst
real(kind=dp), intent(in), device, dimension(:, :, :) :: src
integer, intent(in) :: n_data