2d381f800f
The old BTL interface provided support for RDMA through the use of the btl_prepare_src and btl_prepare_dst functions. These functions were expected to prepare as much of the user buffer as possible for the RDMA operation and return a descriptor. The descriptor contained segment information on the prepared region. The btl user could then pass the RDMA segment information to a remote peer. Once the peer received that information it then packed it into a similar descriptor on the other side that could then be passed into a single btl_put or btl_get operation. Changes: - Removed the btl_prepare_dst function. This reflects the fact that RDMA operations no longer depend on "prepared" descriptors. - Removed the btl_seg_size member. There is no need to btl's to subclass the mca_btl_base_segment_t class anymore. ... Add more
48 строки
1.6 KiB
C
48 строки
1.6 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
|
|
/*
|
|
* Copyright (c) 2011-2014 Los Alamos National Security, LLC. All rights
|
|
* reserved.
|
|
* Copyright (c) 2011 UT-Battelle, LLC. All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#include "btl_ugni.h"
|
|
#include "btl_ugni_frag.h"
|
|
|
|
static inline void mca_btl_ugni_base_frag_constructor (mca_btl_ugni_base_frag_t *frag)
|
|
{
|
|
memset ((char *) frag + sizeof (frag->base), 0, sizeof (*frag) - sizeof (frag->base));
|
|
frag->segments[0].seg_addr.pval = frag->base.super.ptr;
|
|
}
|
|
|
|
static inline void mca_btl_ugni_eager_frag_constructor (mca_btl_ugni_base_frag_t *frag)
|
|
{
|
|
struct mca_btl_ugni_reg_t *reg =
|
|
(struct mca_btl_ugni_reg_t *) frag->base.super.registration;
|
|
|
|
mca_btl_ugni_base_frag_constructor (frag);
|
|
|
|
frag->memory_handle = reg->handle;
|
|
}
|
|
|
|
OBJ_CLASS_INSTANCE(mca_btl_ugni_smsg_frag_t, mca_btl_base_descriptor_t,
|
|
mca_btl_ugni_base_frag_constructor, NULL);
|
|
|
|
OBJ_CLASS_INSTANCE(mca_btl_ugni_rdma_frag_t, mca_btl_base_descriptor_t,
|
|
mca_btl_ugni_base_frag_constructor, NULL);
|
|
|
|
OBJ_CLASS_INSTANCE(mca_btl_ugni_eager_frag_t, mca_btl_base_descriptor_t,
|
|
mca_btl_ugni_eager_frag_constructor, NULL);
|
|
|
|
OBJ_CLASS_INSTANCE(mca_btl_ugni_post_descriptor_t, ompi_free_list_item_t,
|
|
NULL, NULL);
|
|
|
|
void mca_btl_ugni_frag_init (mca_btl_ugni_base_frag_t *frag, mca_btl_ugni_module_t *ugni_module)
|
|
{
|
|
frag->msg_id = opal_pointer_array_add (&ugni_module->pending_smsg_frags_bb, (void *) frag);
|
|
}
|