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openmpi/ompi/mca/btl/template/btl_template_component.c
Nathan Hjelm cf377db823 MCA/base: Add new MCA variable system
Features:
 - Support for an override parameter file (openmpi-mca-param-override.conf).
   Variable values in this file can not be overridden by any file or environment
   value.
 - Support for boolean, unsigned, and unsigned long long variables.
 - Support for true/false values.
 - Support for enumerations on integer variables.
 - Support for MPIT scope, verbosity, and binding.
 - Support for command line source.
 - Support for setting variable source via the environment using
   OMPI_MCA_SOURCE_<var name>=source (either command or file:filename)
 - Cleaner API.
 - Support for variable groups (equivalent to MPIT categories).

Notes:
 - Variables must be created with a backing store (char **, int *, or bool *)
   that must live at least as long as the variable.
 - Creating a variable with the MCA_BASE_VAR_FLAG_SETTABLE enables the use of
   mca_base_var_set_value() to change the value.
 - String values are duplicated when the variable is registered. It is up to
   the caller to free the original value if necessary. The new value will be
   freed by the mca_base_var system and must not be freed by the user.
 - Variables with constant scope may not be settable.
 - Variable groups (and all associated variables) are deregistered when the
   component is closed or the component repository item is freed. This
   prevents a segmentation fault from accessing a variable after its component
   is unloaded.
 - After some discussion we decided we should remove the automatic registration
   of component priority variables. Few component actually made use of this
   feature.
 - The enumerator interface was updated to be general enough to handle
   future uses of the interface.
 - The code to generate ompi_info output has been moved into the MCA variable
   system. See mca_base_var_dump().

opal: update core and components to mca_base_var system
orte: update core and components to mca_base_var system
ompi: update core and components to mca_base_var system

This commit also modifies the rmaps framework. The following variables were
moved from ppr and lama: rmaps_base_pernode, rmaps_base_n_pernode,
rmaps_base_n_persocket. Both lama and ppr create synonyms for these variables.

This commit was SVN r28236.
2013-03-27 21:09:41 +00:00

160 строки
5.9 KiB
C

/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/constants.h"
#include "opal/mca/event/event.h"
#include "ompi/mca/btl/btl.h"
#include "ompi/mca/mpool/base/base.h"
#include "btl_template.h"
#include "btl_template_frag.h"
#include "btl_template_endpoint.h"
#include "ompi/mca/btl/base/base.h"
/**
* Register any MCA parameters associated with this component
*/
static int mca_btl_template_component_register(void);
/**
* Make initial determination whether this component can run or not
*/
static int mca_btl_template_component_open(void);
/**
* Any final cleanup before being unloaded.
*/
static int mca_btl_template_component_close(void);
mca_btl_template_component_t mca_btl_template_component = {
{
/* First, the mca_base_component_t struct containing meta information
about the component itself */
{
MCA_BTL_BASE_VERSION_2_0_0,
"template", /* 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_btl_template_component_open, /* component open */
mca_btl_template_component_close, /* component close */
NULL, /* component query */
mca_btl_template_component_register, /* component register */
},
{
/* The component is not checkpoint ready */
MCA_BASE_METADATA_PARAM_NONE
},
mca_btl_template_component_init,
mca_btl_template_component_progress,
}
};
static int mca_btl_template_component_open(void)
{
return OMPI_SUCCESS;
}
static int mca_btl_template_component_register(void)
{
/* initialize state */
mca_btl_template_component.template_num_btls=0;
mca_btl_template_component.template_btls=NULL;
/* initialize objects */
OBJ_CONSTRUCT(&mca_btl_template_component.template_procs, opal_list_t);
/* register TEMPLATE component parameters */
mca_btl_template_component.template_free_list_num = 8;
(void) mca_base_component_var_register(&mca_btl_template_component.super.btl_version,
"free_list_num", NULL, MCA_BASE_VAR_TYPE_INT,
NULL, 0, 0, OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_template_component.template_free_list_num);
(void) mca_base_component_var_register(&mca_btl_template_component.super.btl_version,
"free_list_max", NULL, MCA_BASE_VAR_TYPE_INT,
NULL, 0, 0, OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_template_component.template_free_list_max);
(void) mca_base_component_var_register(&mca_btl_template_component.super.btl_version,
"free_list_inc", NULL, MCA_BASE_VAR_TYPE_INT,
NULL, 0, 0, OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_template_component.template_free_list_inc);
mca_btl_template_component.template_mpool_name = "grdma";
(void) mca_base_component_var_register(&mca_btl_template_component.super.btl_version,
"mpool", NULL, MCA_BASE_VAR_TYPE_STRING,
NULL, 0, 0, OPAL_INFO_LVL_9,
MCA_BASE_VAR_SCOPE_READONLY,
&mca_btl_template_component.template_mpool_name);
mca_btl_template_module.super.btl_exclusivity = 0;
mca_btl_template_module.super.btl_eager_limit = 64*1024;
mca_btl_template_module.super.btl_rndv_eager_limit = 64*1024;
mca_btl_template_module.super.btl_max_send_size = 128*1024;
mca_btl_template_module.super.btl_min_rdma_pipeline_size = 1024*1024;
mca_btl_template_module.super.btl_rdma_pipeline_frag_size = 1024*1024;
mca_btl_template_module.super.btl_rdma_pipeline_send_length = 1024*1024;
mca_btl_template_module.super.btl_flags = MCA_BTL_FLAGS_PUT;
return mca_btl_base_param_register(&mca_btl_template_component.super.btl_version,
&mca_btl_template_module.super);
}
/*
* component cleanup - sanity checking of queue lengths
*/
static int mca_btl_template_component_close(void)
{
return OMPI_SUCCESS;
}
/*
* TEMPLATE component initialization:
* (1) read interface list from kernel and compare against component parameters
* then create a BTL instance for selected interfaces
* (2) setup TEMPLATE listen socket for incoming connection attempts
* (3) register BTL parameters with the MCA
*/
mca_btl_base_module_t** mca_btl_template_component_init(int *num_btl_modules,
bool enable_progress_threads,
bool enable_mpi_threads)
{
return NULL;
}
/*
* TEMPLATE component progress.
*/
int mca_btl_template_component_progress()
{
return 0;
}