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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2014-2016 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include "btl_self.h"
#include "btl_self_frag.h"
static int mca_btl_self_component_register(void);
static int mca_btl_self_component_open(void);
static int mca_btl_self_component_close(void);
/**
* SELF module initialization.
*
* @param num_btls (OUT) Number of BTLs returned in BTL array.
* @param enable_progress_threads (IN) Flag indicating whether BTL is allowed to have progress
* threads
* @param enable_mpi_threads (IN) Flag indicating whether BTL must support multilple
* simultaneous invocations from different threads
*
*/
static mca_btl_base_module_t **
mca_btl_self_component_init(int *num_btls, bool enable_progress_threads, bool enable_mpi_threads);
/*
* Shared Memory (SELF) component instance.
*/
mca_btl_self_component_t mca_btl_self_component = {
.super =
{
/* First, the mca_base_component_t struct containing meta information
about the component itself */
.btl_version =
{
MCA_BTL_DEFAULT_VERSION("self"),
.mca_open_component = mca_btl_self_component_open,
.mca_close_component = mca_btl_self_component_close,
.mca_register_component_params = mca_btl_self_component_register,
},
.btl_data =
{
/* The component is checkpoint ready */
.param_field = MCA_BASE_METADATA_PARAM_CHECKPOINT,
},
.btl_init = mca_btl_self_component_init,
} /* end super */
};
/*
* Called by MCA framework to open the component, registers
* component parameters.
*/
static int mca_btl_self_component_register(void)
{
mca_base_var_group_component_register(&mca_btl_self_component.super.btl_version,
"BTL for self communication");
/* register SELF component parameters */
mca_btl_self_component.free_list_num = 0;
(void) mca_base_component_var_register(&mca_btl_self_component.super.btl_version,
"free_list_num", "Number of fragments by default",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0, OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_self_component.free_list_num);
/* NTH: free list buffers are not released until we tear down so DO NOT make them unlimited here
*/
mca_btl_self_component.free_list_max = 64;
(void) mca_base_component_var_register(&mca_btl_self_component.super.btl_version,
"free_list_max", "Maximum number of fragments",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0, OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_self_component.free_list_max);
mca_btl_self_component.free_list_inc = 8;
(void) mca_base_component_var_register(&mca_btl_self_component.super.btl_version,
"free_list_inc", "Increment by this number of fragments",
MCA_BASE_VAR_TYPE_INT, NULL, 0, 0, OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_self_component.free_list_inc);
mca_btl_self.btl_exclusivity = MCA_BTL_EXCLUSIVITY_HIGH;
mca_btl_self.btl_eager_limit = 1024;
mca_btl_self.btl_rndv_eager_limit = 128 * 1024;
mca_btl_self.btl_max_send_size = 16 * 1024;
mca_btl_self.btl_rdma_pipeline_send_length = INT_MAX;
mca_btl_self.btl_rdma_pipeline_frag_size = INT_MAX;
mca_btl_self.btl_min_rdma_pipeline_size = 0;
mca_btl_self.btl_flags = MCA_BTL_FLAGS_RDMA | MCA_BTL_FLAGS_SEND_INPLACE | MCA_BTL_FLAGS_SEND;
/* for self, remote completion is local completion */
mca_btl_self.btl_flags |= MCA_BTL_FLAGS_RDMA_REMOTE_COMPLETION;
mca_btl_self.btl_bandwidth = 100;
mca_btl_self.btl_latency = 0;
mca_btl_base_param_register(&mca_btl_self_component.super.btl_version, &mca_btl_self);
return OPAL_SUCCESS;
}
static int mca_btl_self_component_open(void)
{
/* initialize objects */
OBJ_CONSTRUCT(&mca_btl_self_component.self_frags_eager, opal_free_list_t);
OBJ_CONSTRUCT(&mca_btl_self_component.self_frags_send, opal_free_list_t);
OBJ_CONSTRUCT(&mca_btl_self_component.self_frags_rdma, opal_free_list_t);
return OPAL_SUCCESS;
}
/*
* component cleanup - sanity checking of queue lengths
*/
static int mca_btl_self_component_close(void)
{
OBJ_DESTRUCT(&mca_btl_self_component.self_frags_eager);
OBJ_DESTRUCT(&mca_btl_self_component.self_frags_send);
OBJ_DESTRUCT(&mca_btl_self_component.self_frags_rdma);
return OPAL_SUCCESS;
}
/*
* SELF component initialization
*/
static mca_btl_base_module_t **
mca_btl_self_component_init(int *num_btls, bool enable_progress_threads, bool enable_mpi_threads)
{
mca_btl_base_module_t **btls = NULL;
int ret;
/* initialize free lists */
ret = opal_free_list_init(&mca_btl_self_component.self_frags_eager,
sizeof(mca_btl_self_frag_eager_t) + mca_btl_self.btl_eager_limit,
opal_cache_line_size, OBJ_CLASS(mca_btl_self_frag_eager_t), 0,
opal_cache_line_size, mca_btl_self_component.free_list_num,
mca_btl_self_component.free_list_max,
mca_btl_self_component.free_list_inc, NULL, 0, NULL, NULL, NULL);
if (OPAL_SUCCESS != ret) {
return NULL;
}
ret = opal_free_list_init(&mca_btl_self_component.self_frags_send,
sizeof(mca_btl_self_frag_send_t) + mca_btl_self.btl_max_send_size,
opal_cache_line_size, OBJ_CLASS(mca_btl_self_frag_send_t), 0,
opal_cache_line_size, mca_btl_self_component.free_list_num,
mca_btl_self_component.free_list_max,
mca_btl_self_component.free_list_inc, NULL, 0, NULL, NULL, NULL);
if (OPAL_SUCCESS != ret) {
return NULL;
}
ret = opal_free_list_init(&mca_btl_self_component.self_frags_rdma,
sizeof(mca_btl_self_frag_rdma_t) + MCA_BTL_SELF_MAX_INLINE_SIZE,
opal_cache_line_size, OBJ_CLASS(mca_btl_self_frag_rdma_t), 0,
opal_cache_line_size, mca_btl_self_component.free_list_num,
mca_btl_self_component.free_list_max,
mca_btl_self_component.free_list_inc, NULL, 0, NULL, NULL, NULL);
if (OPAL_SUCCESS != ret) {
return NULL;
}
/* get pointer to the btls */
btls = (mca_btl_base_module_t **) malloc(sizeof(mca_btl_base_module_t *));
if (NULL == btls) {
return NULL;
}
btls[0] = &mca_btl_self;
*num_btls = 1;
return btls;
}
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