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/*
* Copyright (c) 2006-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2007 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2006 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "pml_cm.h"
#include "opal/event/event.h"
#include "opal/mca/base/mca_base_param.h"
#include "ompi/mca/mtl/mtl.h"
#include "ompi/mca/mtl/base/base.h"
#include "ompi/mca/pml/base/pml_base_bsend.h"
#include "pml_cm_sendreq.h"
#include "pml_cm_recvreq.h"
#include "pml_cm_component.h"
static int mca_pml_cm_component_register(void);
static int mca_pml_cm_component_open(void);
static int mca_pml_cm_component_close(void);
static mca_pml_base_module_t* mca_pml_cm_component_init( int* priority,
bool enable_progress_threads, bool enable_mpi_threads);
static int mca_pml_cm_component_fini(void);
mca_pml_base_component_2_0_0_t mca_pml_cm_component = {
/* First, the mca_base_component_t struct containing meta
* information about the component itself */
{
MCA_PML_BASE_VERSION_2_0_0,
"cm", /* MCA component name */
OMPI_MAJOR_VERSION, /* MCA component major version */
OMPI_MINOR_VERSION, /* MCA component minor version */
OMPI_RELEASE_VERSION, /* MCA component release version */
mca_pml_cm_component_open, /* component open */
mca_pml_cm_component_close, /* component close */
NULL,
mca_pml_cm_component_register,
},
{
/* This component is not checkpoint ready */
MCA_BASE_METADATA_PARAM_NONE
},
mca_pml_cm_component_init, /* component init */
mca_pml_cm_component_fini /* component finalize */
};
/* Array of send completion callback - one per send type
* These are called internally by the library when the send
* is completed from its perspective.
*/
void (*send_completion_callbacks[MCA_PML_BASE_SEND_SIZE])
(struct mca_mtl_request_t *mtl_request) =
{ mca_pml_cm_send_request_completion,
mca_pml_cm_send_request_completion,
mca_pml_cm_send_request_completion,
mca_pml_cm_send_request_completion,
mca_pml_cm_send_request_completion } ;
static int
mca_pml_cm_component_register(void)
{
mca_base_param_reg_int(&mca_pml_cm_component.pmlm_version,
"free_list_num",
"Initial size of request free lists",
false,
false,
4,
&ompi_pml_cm.free_list_num);
mca_base_param_reg_int(&mca_pml_cm_component.pmlm_version,
"free_list_max",
"Maximum size of request free lists",
false,
false,
-1,
&ompi_pml_cm.free_list_max);
mca_base_param_reg_int(&mca_pml_cm_component.pmlm_version,
"free_list_inc",
"Number of elements to add when growing request free lists",
false,
false,
64,
&ompi_pml_cm.free_list_inc);
mca_base_param_reg_int(&mca_pml_cm_component.pmlm_version,
"priority",
"CM PML selection priority",
false,
false,
10,
&ompi_pml_cm.default_priority);
return OPAL_SUCCESS;
}
static int
mca_pml_cm_component_open(void)
{
int ret;
ret = ompi_mtl_base_open();
if (OMPI_SUCCESS == ret) {
/* If no MTL components initialized CM component can be unloaded */
if (0 == opal_list_get_size(&ompi_mtl_base_components_opened)) {
ret = OPAL_ERR_NOT_AVAILABLE;
}
}
return ret;
}
static int
mca_pml_cm_component_close(void)
{
return ompi_mtl_base_close();
}
static mca_pml_base_module_t*
mca_pml_cm_component_init(int* priority,
bool enable_progress_threads,
bool enable_mpi_threads)
{
int ret;
if((*priority) > ompi_pml_cm.default_priority) {
*priority = ompi_pml_cm.default_priority;
return NULL;
}
*priority = ompi_pml_cm.default_priority;
opal_output_verbose( 10, 0,
"in cm pml priority is %d\n", *priority);
/* find a useable MTL */
ret = ompi_mtl_base_select(enable_progress_threads, enable_mpi_threads);
if (OMPI_SUCCESS != ret) {
*priority = -1;
return NULL;
} else if((strcmp(ompi_mtl_base_selected_component->mtl_version.mca_component_name, "psm") == 0) ||
(strcmp(ompi_mtl_base_selected_component->mtl_version.mca_component_name, "mxm") == 0)) {
/*
* If MTL is PSM or MXM then up our priority
* For every other communication layer having MTLs and BTLs, the user/admin
* may still select PML/ob1 (BTLs) or PML/cm (MTLs) if preferable for the app/site.
*/
*priority = 30;
}
/* update our tag / context id max values based on MTL
information */
ompi_pml_cm.super.pml_max_contextid = ompi_mtl->mtl_max_contextid;
ompi_pml_cm.super.pml_max_tag = ompi_mtl->mtl_max_tag;
return &ompi_pml_cm.super;
}
static int
mca_pml_cm_component_fini(void)
{
if (NULL != ompi_mtl && NULL != ompi_mtl->mtl_finalize) {
return ompi_mtl->mtl_finalize(ompi_mtl);
}
return OMPI_SUCCESS;
}
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