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openmpi/opal/mca/btl/vader/btl_vader_atomic.c
Nathan Hjelm ae91b11de2 btl/vader: when using single-copy emulation fragment large rdma
This commit changes how the single-copy emulation in the vader btl
operates. Before this change the BTL set its put and get limits
based on the max send size. After this change the limits are unset
and the put or get operation is fragmented internally.

References #6568

Signed-off-by: Nathan Hjelm <hjelmn@google.com>
2019-09-05 23:08:53 -07:00

50 строки
2.6 KiB
C

/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2010-2017 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2019 Google, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include "btl_vader.h"
#include "btl_vader_frag.h"
#include "btl_vader_endpoint.h"
#include "btl_vader_xpmem.h"
int mca_btl_vader_emu_aop (struct mca_btl_base_module_t *btl, struct mca_btl_base_endpoint_t *endpoint,
uint64_t remote_address, mca_btl_base_registration_handle_t *remote_handle,
mca_btl_base_atomic_op_t op, uint64_t operand, int flags, int order,
mca_btl_base_rdma_completion_fn_t cbfunc, void *cbcontext, void *cbdata)
{
size_t size = (flags & MCA_BTL_ATOMIC_FLAG_32BIT) ? 4 : 8;
return mca_btl_vader_rdma_frag_start (btl, endpoint, MCA_BTL_VADER_OP_ATOMIC, operand, 0, op, order, flags,
size, NULL, remote_address, cbfunc, cbcontext, cbdata);
}
int mca_btl_vader_emu_afop (struct mca_btl_base_module_t *btl, struct mca_btl_base_endpoint_t *endpoint,
void *local_address, uint64_t remote_address, mca_btl_base_registration_handle_t *local_handle,
mca_btl_base_registration_handle_t *remote_handle, mca_btl_base_atomic_op_t op,
uint64_t operand, int flags, int order, mca_btl_base_rdma_completion_fn_t cbfunc,
void *cbcontext, void *cbdata)
{
size_t size = (flags & MCA_BTL_ATOMIC_FLAG_32BIT) ? 4 : 8;
return mca_btl_vader_rdma_frag_start (btl, endpoint, MCA_BTL_VADER_OP_ATOMIC, operand, 0, op, order, flags,
size, local_address, remote_address, cbfunc, cbcontext, cbdata);
}
int mca_btl_vader_emu_acswap (struct mca_btl_base_module_t *btl, struct mca_btl_base_endpoint_t *endpoint,
void *local_address, uint64_t remote_address, mca_btl_base_registration_handle_t *local_handle,
mca_btl_base_registration_handle_t *remote_handle, uint64_t compare, uint64_t value, int flags,
int order, mca_btl_base_rdma_completion_fn_t cbfunc, void *cbcontext, void *cbdata)
{
size_t size = (flags & MCA_BTL_ATOMIC_FLAG_32BIT) ? 4 : 8;
return mca_btl_vader_rdma_frag_start (btl, endpoint, MCA_BTL_VADER_OP_CSWAP, compare, value, 0, order,
flags, size, local_address, remote_address, cbfunc, cbcontext, cbdata);
}