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openmpi/ompi/mca/pml/v/pml_v_component.c
Eugene Loh 2770a12beb Continue clean up of thread options started in r22841, 22842, and 22849.
No need for any CMRs to 1.5... that was already done in CMR 2728.

This commit was SVN r24545.

The following SVN revision numbers were found above:
  r22841 --> open-mpi/ompi@b400b84162
2011-03-18 21:36:35 +00:00

253 строки
9.2 KiB
C

/*
* Copyright (c) 2004-2007 The Trustees of the University of Tennessee.
* All rights reserved.
* Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "opal/mca/base/mca_base_param.h"
#include "opal/mca/base/base.h"
#include "opal/mca/base/mca_base_component_repository.h"
#include "ompi/constants.h"
#include "ompi/mca/pml/base/base.h"
#include "ompi/mca/vprotocol/vprotocol.h"
#include "ompi/mca/vprotocol/base/base.h"
#include "pml_v_output.h"
#include "pml_v.h"
static int mca_pml_v_component_open(void);
static int mca_pml_v_component_close(void);
static int mca_pml_v_component_parasite_close(void);
static mca_pml_base_module_t *mca_pml_v_component_init(int* priority, bool enable_progress_threads, bool enable_mpi_thread_multiple);
static int mca_pml_v_component_finalize(void);
static int mca_pml_v_component_parasite_finalize(void);
static int mca_pml_v_enable(bool enable);
static inline int mca_pml_v_param_register_int( const char* param_name, int default_value);
static inline char *mca_pml_v_param_register_string( const char* param_name, char *default_value);
mca_pml_base_component_2_0_0_t mca_pml_v_component =
{
/* First, the mca_base_component_t struct containing meta
* information about the component itself */
{
MCA_PML_BASE_VERSION_2_0_0,
"v", /* 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_v_component_open,
mca_pml_v_component_close
},
{
MCA_BASE_METADATA_PARAM_NONE /* Component is not checkpointable */
},
mca_pml_v_component_init, /* component init */
mca_pml_v_component_finalize /* component finalize */
};
static bool pml_v_enable_progress_treads = OMPI_ENABLE_PROGRESS_THREADS;
static bool pml_v_enable_mpi_thread_multiple = OMPI_ENABLE_THREAD_MULTIPLE;
/*******************************************************************************
* MCA level functions - parasite setup
*/
static int mca_pml_v_component_open(void)
{
char *output;
int verbose;
int priority;
char *vprotocol_include_list;
priority = mca_pml_v_param_register_int("priority", -1);
output = mca_pml_v_param_register_string("output", "stderr");
verbose = mca_pml_v_param_register_int("verbose", 0);
mca_base_param_reg_string_name("vprotocol", NULL,
"Specify a specific vprotocol to use",
false, false, "", &vprotocol_include_list);
pml_v_output_open(output, verbose);
if(-1 != priority)
V_OUTPUT_ERR("pml_v: Overriding priority setting (%d) with -1. The PML V should NEVER be the selected component; even when enabling fault tolerance.", priority);
V_OUTPUT_VERBOSE(500, "loaded");
return mca_vprotocol_base_open(vprotocol_include_list);
}
static int mca_pml_v_component_close(void)
{
/* Save original PML before making any changes */
mca_pml_v.host_pml_component = mca_pml_base_selected_component;
mca_pml_v.host_pml = mca_pml;
mca_pml_v.host_request_fns = ompi_request_functions;
/* Do not load anything if no FT protocol is selected */
if (NULL != mca_vprotocol_base_include_list && !mca_vprotocol_base_include_list[0]) {
return mca_pml_v_component_parasite_close();
}
/* Mark that we have changed something */
snprintf(mca_pml_base_selected_component.pmlm_version.mca_component_name,
MCA_BASE_MAX_TYPE_NAME_LEN, "%s]v%s",
mca_pml_v.host_pml_component.pmlm_version.mca_component_name,
mca_vprotocol_component.pmlm_version.mca_component_name);
/* Replace finalize */
mca_pml_base_selected_component.pmlm_finalize =
mca_pml_v_component_parasite_finalize;
/* Make sure we get initialized if some Vprotocol is enabled */
mca_pml.pml_enable = mca_pml_v_enable;
return OMPI_SUCCESS;
}
/*******************************************************************************
* Parasite cleanup
*/
static int mca_pml_v_component_parasite_finalize(void)
{
mca_base_component_list_item_t *cli = NULL;
V_OUTPUT_VERBOSE(500, "parasite_finalize");
/* Make sure we'll get closed again with the true close function */
mca_pml_v_component.pmlm_version.mca_close_component =
mca_pml_v_component_parasite_close;
cli = OBJ_NEW(mca_base_component_list_item_t);
cli->cli_component = (mca_base_component_t *) &mca_pml_v_component;
opal_list_prepend(&mca_pml_base_components_available,
(opal_list_item_t *) cli);
/* finalize vprotocol component */
if(mca_vprotocol_base_selected())
mca_vprotocol_component.pmlm_finalize();
if(mca_pml_v.host_pml_component.pmlm_finalize != NULL)
return mca_pml_v.host_pml_component.pmlm_finalize();
else
return OMPI_SUCCESS;
}
static int mca_pml_v_component_parasite_close(void)
{
V_OUTPUT_VERBOSE(500, "parasite_close: Ok, I accept to die and let %s component finish",
mca_pml_v.host_pml_component.pmlm_version.mca_component_name);
mca_pml_base_selected_component = mca_pml_v.host_pml_component;
mca_vprotocol_base_close();
pml_v_output_close();
mca_pml.pml_enable = mca_pml_v.host_pml.pml_enable;
/* don't need to call the host component's close: pml_base will do it */
return OMPI_SUCCESS; /* ignore any errors as we are leaving anyway */
}
/*******************************************************************************
* Init/finalize for MCA PML components
*/
static mca_pml_base_module_t *mca_pml_v_component_init(int *priority,
bool enable_progress_threads,
bool enable_mpi_thread_multiple)
{
V_OUTPUT_VERBOSE(1, "init: I'm not supposed to be here until BTL loading stuff gets fixed!? That's strange...");
pml_v_enable_progress_treads = enable_progress_threads;
pml_v_enable_mpi_thread_multiple = enable_mpi_thread_multiple;
/* I NEVER want to be the selected PML, so I report less than possible
* priority and a NULL module
*/
*priority = -1;
return NULL;
}
static int mca_pml_v_component_finalize(void)
{
V_OUTPUT_VERBOSE(1, "finalize: I'm not supposed to be here until BTL loading stuff gets fixed!? That's strange...");
/* Nothing to do here. We are not sure we need to be unloaded or not at
* this stage
*/
return OMPI_SUCCESS;
}
/*******************************************************************************
* Enable the PML V (and initialize the Vprotocol)
*/
static int mca_pml_v_enable(bool enable)
{
int ret;
/* Enable the real PML (no threading issues there as threads are started
* later)
*/
ret = mca_pml_v.host_pml.pml_enable(enable);
if(OMPI_SUCCESS != ret) return ret;
if(enable) {
/* Check if a protocol have been selected during init */
if(! mca_vprotocol_base_selected())
mca_vprotocol_base_select(pml_v_enable_progress_treads,
pml_v_enable_mpi_thread_multiple);
/* Check if we succeeded selecting a protocol */
if(mca_vprotocol_base_selected()) {
V_OUTPUT_VERBOSE(1, "I don't want to die: I will parasite %s host component %s with %s %s",
mca_pml_base_selected_component.pmlm_version.mca_type_name,
mca_pml_base_selected_component.pmlm_version.mca_component_name,
mca_vprotocol_component.pmlm_version.mca_type_name,
mca_vprotocol_component.pmlm_version.mca_component_name);
ret = mca_vprotocol_base_parasite();
if(OMPI_SUCCESS != ret) return ret;
if(mca_vprotocol.enable)
return mca_vprotocol.enable(enable);
else
return OMPI_SUCCESS;
}
V_OUTPUT_VERBOSE(1, "No fault tolerant protocol selected. All are unloaded");
}
/* Disable */
mca_pml = mca_pml_v.host_pml;
mca_pml.pml_enable = mca_pml_v_enable;
/* /!\ This is incorrect if another component also changed the requests */
ompi_request_functions = mca_pml_v.host_request_fns;
return OMPI_SUCCESS;
}
/*******************************************************************************
* utilities
*/
static inline int mca_pml_v_param_register_int( const char* param_name,
int default_value )
{
int id = mca_base_param_register_int("pml", "v", param_name, NULL, default_value);
int param_value = default_value;
mca_base_param_lookup_int(id, &param_value);
return param_value;
}
static inline char *mca_pml_v_param_register_string( const char* param_name,
char *default_value )
{
int id = mca_base_param_register_string("pml", "v", param_name, NULL, default_value);
char *param_value = default_value;
mca_base_param_lookup_string(id, &param_value);
return param_value;
}