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openmpi/orte/runtime/data_type_support/orte_dt_copy_fns.c

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/*
A number of C/R enhancements per RFC below: http://www.open-mpi.org/community/lists/devel/2010/07/8240.php Documentation: http://osl.iu.edu/research/ft/ Major Changes: -------------- * Added C/R-enabled Debugging support. Enabled with the --enable-crdebug flag. See the following website for more information: http://osl.iu.edu/research/ft/crdebug/ * Added Stable Storage (SStore) framework for checkpoint storage * 'central' component does a direct to central storage save * 'stage' component stages checkpoints to central storage while the application continues execution. * 'stage' supports offline compression of checkpoints before moving (sstore_stage_compress) * 'stage' supports local caching of checkpoints to improve automatic recovery (sstore_stage_caching) * Added Compression (compress) framework to support * Add two new ErrMgr recovery policies * {{{crmig}}} C/R Process Migration * {{{autor}}} C/R Automatic Recovery * Added the {{{ompi-migrate}}} command line tool to support the {{{crmig}}} ErrMgr component * Added CR MPI Ext functions (enable them with {{{--enable-mpi-ext=cr}}} configure option) * {{{OMPI_CR_Checkpoint}}} (Fixes trac:2342) * {{{OMPI_CR_Restart}}} * {{{OMPI_CR_Migrate}}} (may need some more work for mapping rules) * {{{OMPI_CR_INC_register_callback}}} (Fixes trac:2192) * {{{OMPI_CR_Quiesce_start}}} * {{{OMPI_CR_Quiesce_checkpoint}}} * {{{OMPI_CR_Quiesce_end}}} * {{{OMPI_CR_self_register_checkpoint_callback}}} * {{{OMPI_CR_self_register_restart_callback}}} * {{{OMPI_CR_self_register_continue_callback}}} * The ErrMgr predicted_fault() interface has been changed to take an opal_list_t of ErrMgr defined types. This will allow us to better support a wider range of fault prediction services in the future. * Add a progress meter to: * FileM rsh (filem_rsh_process_meter) * SnapC full (snapc_full_progress_meter) * SStore stage (sstore_stage_progress_meter) * Added 2 new command line options to ompi-restart * --showme : Display the full command line that would have been exec'ed. * --mpirun_opts : Command line options to pass directly to mpirun. (Fixes trac:2413) * Deprecated some MCA params: * crs_base_snapshot_dir deprecated, use sstore_stage_local_snapshot_dir * snapc_base_global_snapshot_dir deprecated, use sstore_base_global_snapshot_dir * snapc_base_global_shared deprecated, use sstore_stage_global_is_shared * snapc_base_store_in_place deprecated, replaced with different components of SStore * snapc_base_global_snapshot_ref deprecated, use sstore_base_global_snapshot_ref * snapc_base_establish_global_snapshot_dir deprecated, never well supported * snapc_full_skip_filem deprecated, use sstore_stage_skip_filem Minor Changes: -------------- * Fixes trac:1924 : {{{ompi-restart}}} now recognizes path prefixed checkpoint handles and does the right thing. * Fixes trac:2097 : {{{ompi-info}}} should now report all available CRS components * Fixes trac:2161 : Manual checkpoint movement. A user can 'mv' a checkpoint directory from the original location to another and still restart from it. * Fixes trac:2208 : Honor various TMPDIR varaibles instead of forcing {{{/tmp}}} * Move {{{ompi_cr_continue_like_restart}}} to {{{orte_cr_continue_like_restart}}} to be more flexible in where this should be set. * opal_crs_base_metadata_write* functions have been moved to SStore to support a wider range of metadata handling functionality. * Cleanup the CRS framework and components to work with the SStore framework. * Cleanup the SnapC framework and components to work with the SStore framework (cleans up these code paths considerably). * Add 'quiesce' hook to CRCP for a future enhancement. * We now require a BLCR version that supports {{{cr_request_file()}}} or {{{cr_request_checkpoint()}}} in order to make the code more maintainable. Note that {{{cr_request_file}}} has been deprecated since 0.7.0, so we prefer to use {{{cr_request_checkpoint()}}}. * Add optional application level INC callbacks (registered through the CR MPI Ext interface). * Increase the {{{opal_cr_thread_sleep_wait}}} parameter to 1000 microseconds to make the C/R thread less aggressive. * {{{opal-restart}}} now looks for cache directories before falling back on stable storage when asked. * {{{opal-restart}}} also support local decompression before restarting * {{{orte-checkpoint}}} now uses the SStore framework to work with the metadata * {{{orte-restart}}} now uses the SStore framework to work with the metadata * Remove the {{{orte-restart}}} preload option. This was removed since the user only needs to select the 'stage' component in order to support this functionality. * Since the '-am' parameter is saved in the metadata, {{{ompi-restart}}} no longer hard codes {{{-am ft-enable-cr}}}. * Fix {{{hnp}}} ErrMgr so that if a previous component in the stack has 'fixed' the problem, then it should be skipped. * Make sure to decrement the number of 'num_local_procs' in the orted when one goes away. * odls now checks the SStore framework to see if it needs to load any checkpoint files before launching (to support 'stage'). This separates the SStore logic from the --preload-[binary|files] options. * Add unique IDs to the named pipes established between the orted and the app in SnapC. This is to better support migration and automatic recovery activities. * Improve the checks for 'already checkpointing' error path. * A a recovery output timer, to show how long it takes to restart a job * Do a better job of cleaning up the old session directory on restart. * Add a local module to the autor and crmig ErrMgr components. These small modules prevent the 'orted' component from attempting a local recovery (Which does not work for MPI apps at the moment) * Add a fix for bounding the checkpointable region between MPI_Init and MPI_Finalize. This commit was SVN r23587. The following Trac tickets were found above: Ticket 1924 --> https://svn.open-mpi.org/trac/ompi/ticket/1924 Ticket 2097 --> https://svn.open-mpi.org/trac/ompi/ticket/2097 Ticket 2161 --> https://svn.open-mpi.org/trac/ompi/ticket/2161 Ticket 2192 --> https://svn.open-mpi.org/trac/ompi/ticket/2192 Ticket 2208 --> https://svn.open-mpi.org/trac/ompi/ticket/2208 Ticket 2342 --> https://svn.open-mpi.org/trac/ompi/ticket/2342 Ticket 2413 --> https://svn.open-mpi.org/trac/ompi/ticket/2413
2010-08-10 20:51:11 +00:00
* Copyright (c) 2004-2010 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2011 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) 2011 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2011-2013 Los Alamos National Security, LLC.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "orte_config.h"
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "opal/util/argv.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/runtime/data_type_support/orte_dt_support.h"
/* ORTE_STD_CNTR */
int orte_dt_copy_std_cntr(orte_std_cntr_t **dest, orte_std_cntr_t *src, opal_data_type_t type)
{
orte_std_cntr_t *val;
val = (orte_std_cntr_t*)malloc(sizeof(orte_std_cntr_t));
if (NULL == val) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
*val = *src;
*dest = val;
return ORTE_SUCCESS;
}
/* PROCESS NAME */
int orte_dt_copy_name(orte_process_name_t **dest, orte_process_name_t *src, opal_data_type_t type)
{
orte_process_name_t *val;
val = (orte_process_name_t*)malloc(sizeof(orte_process_name_t));
if (NULL == val) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
val->jobid = src->jobid;
val->vpid = src->vpid;
*dest = val;
return ORTE_SUCCESS;
}
/*
* JOBID
*/
int orte_dt_copy_jobid(orte_jobid_t **dest, orte_jobid_t *src, opal_data_type_t type)
{
orte_jobid_t *val;
val = (orte_jobid_t*)malloc(sizeof(orte_jobid_t));
if (NULL == val) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
*val = *src;
*dest = val;
return ORTE_SUCCESS;
}
/*
* VPID
*/
int orte_dt_copy_vpid(orte_vpid_t **dest, orte_vpid_t *src, opal_data_type_t type)
{
orte_vpid_t *val;
val = (orte_vpid_t*)malloc(sizeof(orte_vpid_t));
if (NULL == val) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
*val = *src;
*dest = val;
return ORTE_SUCCESS;
}
/**
* JOB
*/
int orte_dt_copy_job(orte_job_t **dest, orte_job_t *src, opal_data_type_t type)
{
(*dest) = src;
OBJ_RETAIN(src);
return ORTE_SUCCESS;
}
/**
* NODE
*/
int orte_dt_copy_node(orte_node_t **dest, orte_node_t *src, opal_data_type_t type)
{
(*dest) = src;
OBJ_RETAIN(src);
return ORTE_SUCCESS;
}
/**
* PROC
*/
int orte_dt_copy_proc(orte_proc_t **dest, orte_proc_t *src, opal_data_type_t type)
{
(*dest) = src;
OBJ_RETAIN(src);
return ORTE_SUCCESS;
}
/*
* APP CONTEXT
*/
int orte_dt_copy_app_context(orte_app_context_t **dest, orte_app_context_t *src, opal_data_type_t type)
{
/* create the new object */
*dest = OBJ_NEW(orte_app_context_t);
if (NULL == *dest) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
/* copy data into it */
(*dest)->idx = src->idx;
if (NULL != src->app) {
(*dest)->app = strdup(src->app);
}
(*dest)->num_procs = src->num_procs;
(*dest)->argv = opal_argv_copy(src->argv);
(*dest)->env = opal_argv_copy(src->env);
if (NULL != src->cwd) {
(*dest)->cwd = strdup(src->cwd);
}
(*dest)->user_specified_cwd = src->user_specified_cwd;
if (NULL != src->hostfile) {
(*dest)->hostfile = strdup(src->hostfile);
}
if (NULL != src->add_hostfile) {
(*dest)->add_hostfile = strdup(src->add_hostfile);
}
(*dest)->add_host = opal_argv_copy(src->add_host);
(*dest)->dash_host = opal_argv_copy(src->dash_host);
if (NULL != src->prefix_dir) {
(*dest)->prefix_dir = strdup(src->prefix_dir);
}
(*dest)->preload_binary = src->preload_binary;
if( NULL != src->preload_files) {
(*dest)->preload_files = strdup(src->preload_files);
}
(*dest)->recovery_defined = src->recovery_defined;
(*dest)->max_restarts = src->max_restarts;
A number of C/R enhancements per RFC below: http://www.open-mpi.org/community/lists/devel/2010/07/8240.php Documentation: http://osl.iu.edu/research/ft/ Major Changes: -------------- * Added C/R-enabled Debugging support. Enabled with the --enable-crdebug flag. See the following website for more information: http://osl.iu.edu/research/ft/crdebug/ * Added Stable Storage (SStore) framework for checkpoint storage * 'central' component does a direct to central storage save * 'stage' component stages checkpoints to central storage while the application continues execution. * 'stage' supports offline compression of checkpoints before moving (sstore_stage_compress) * 'stage' supports local caching of checkpoints to improve automatic recovery (sstore_stage_caching) * Added Compression (compress) framework to support * Add two new ErrMgr recovery policies * {{{crmig}}} C/R Process Migration * {{{autor}}} C/R Automatic Recovery * Added the {{{ompi-migrate}}} command line tool to support the {{{crmig}}} ErrMgr component * Added CR MPI Ext functions (enable them with {{{--enable-mpi-ext=cr}}} configure option) * {{{OMPI_CR_Checkpoint}}} (Fixes trac:2342) * {{{OMPI_CR_Restart}}} * {{{OMPI_CR_Migrate}}} (may need some more work for mapping rules) * {{{OMPI_CR_INC_register_callback}}} (Fixes trac:2192) * {{{OMPI_CR_Quiesce_start}}} * {{{OMPI_CR_Quiesce_checkpoint}}} * {{{OMPI_CR_Quiesce_end}}} * {{{OMPI_CR_self_register_checkpoint_callback}}} * {{{OMPI_CR_self_register_restart_callback}}} * {{{OMPI_CR_self_register_continue_callback}}} * The ErrMgr predicted_fault() interface has been changed to take an opal_list_t of ErrMgr defined types. This will allow us to better support a wider range of fault prediction services in the future. * Add a progress meter to: * FileM rsh (filem_rsh_process_meter) * SnapC full (snapc_full_progress_meter) * SStore stage (sstore_stage_progress_meter) * Added 2 new command line options to ompi-restart * --showme : Display the full command line that would have been exec'ed. * --mpirun_opts : Command line options to pass directly to mpirun. (Fixes trac:2413) * Deprecated some MCA params: * crs_base_snapshot_dir deprecated, use sstore_stage_local_snapshot_dir * snapc_base_global_snapshot_dir deprecated, use sstore_base_global_snapshot_dir * snapc_base_global_shared deprecated, use sstore_stage_global_is_shared * snapc_base_store_in_place deprecated, replaced with different components of SStore * snapc_base_global_snapshot_ref deprecated, use sstore_base_global_snapshot_ref * snapc_base_establish_global_snapshot_dir deprecated, never well supported * snapc_full_skip_filem deprecated, use sstore_stage_skip_filem Minor Changes: -------------- * Fixes trac:1924 : {{{ompi-restart}}} now recognizes path prefixed checkpoint handles and does the right thing. * Fixes trac:2097 : {{{ompi-info}}} should now report all available CRS components * Fixes trac:2161 : Manual checkpoint movement. A user can 'mv' a checkpoint directory from the original location to another and still restart from it. * Fixes trac:2208 : Honor various TMPDIR varaibles instead of forcing {{{/tmp}}} * Move {{{ompi_cr_continue_like_restart}}} to {{{orte_cr_continue_like_restart}}} to be more flexible in where this should be set. * opal_crs_base_metadata_write* functions have been moved to SStore to support a wider range of metadata handling functionality. * Cleanup the CRS framework and components to work with the SStore framework. * Cleanup the SnapC framework and components to work with the SStore framework (cleans up these code paths considerably). * Add 'quiesce' hook to CRCP for a future enhancement. * We now require a BLCR version that supports {{{cr_request_file()}}} or {{{cr_request_checkpoint()}}} in order to make the code more maintainable. Note that {{{cr_request_file}}} has been deprecated since 0.7.0, so we prefer to use {{{cr_request_checkpoint()}}}. * Add optional application level INC callbacks (registered through the CR MPI Ext interface). * Increase the {{{opal_cr_thread_sleep_wait}}} parameter to 1000 microseconds to make the C/R thread less aggressive. * {{{opal-restart}}} now looks for cache directories before falling back on stable storage when asked. * {{{opal-restart}}} also support local decompression before restarting * {{{orte-checkpoint}}} now uses the SStore framework to work with the metadata * {{{orte-restart}}} now uses the SStore framework to work with the metadata * Remove the {{{orte-restart}}} preload option. This was removed since the user only needs to select the 'stage' component in order to support this functionality. * Since the '-am' parameter is saved in the metadata, {{{ompi-restart}}} no longer hard codes {{{-am ft-enable-cr}}}. * Fix {{{hnp}}} ErrMgr so that if a previous component in the stack has 'fixed' the problem, then it should be skipped. * Make sure to decrement the number of 'num_local_procs' in the orted when one goes away. * odls now checks the SStore framework to see if it needs to load any checkpoint files before launching (to support 'stage'). This separates the SStore logic from the --preload-[binary|files] options. * Add unique IDs to the named pipes established between the orted and the app in SnapC. This is to better support migration and automatic recovery activities. * Improve the checks for 'already checkpointing' error path. * A a recovery output timer, to show how long it takes to restart a job * Do a better job of cleaning up the old session directory on restart. * Add a local module to the autor and crmig ErrMgr components. These small modules prevent the 'orted' component from attempting a local recovery (Which does not work for MPI apps at the moment) * Add a fix for bounding the checkpointable region between MPI_Init and MPI_Finalize. This commit was SVN r23587. The following Trac tickets were found above: Ticket 1924 --> https://svn.open-mpi.org/trac/ompi/ticket/1924 Ticket 2097 --> https://svn.open-mpi.org/trac/ompi/ticket/2097 Ticket 2161 --> https://svn.open-mpi.org/trac/ompi/ticket/2161 Ticket 2192 --> https://svn.open-mpi.org/trac/ompi/ticket/2192 Ticket 2208 --> https://svn.open-mpi.org/trac/ompi/ticket/2208 Ticket 2342 --> https://svn.open-mpi.org/trac/ompi/ticket/2342 Ticket 2413 --> https://svn.open-mpi.org/trac/ompi/ticket/2413
2010-08-10 20:51:11 +00:00
#if OPAL_ENABLE_FT_CR == 1
if( NULL != src->sstore_load) {
(*dest)->sstore_load = strdup(src->sstore_load);
}
#endif
return ORTE_SUCCESS;
}
int orte_dt_copy_proc_state(orte_proc_state_t **dest, orte_proc_state_t *src, opal_data_type_t type)
{
orte_proc_state_t *ps;
ps = (orte_proc_state_t*)malloc(sizeof(orte_proc_state_t));
if (NULL == ps) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
*ps = *src;
*dest = ps;
return ORTE_SUCCESS;
}
int orte_dt_copy_job_state(orte_job_state_t **dest, orte_job_state_t *src, opal_data_type_t type)
{
orte_job_state_t *ps;
ps = (orte_job_state_t*)malloc(sizeof(orte_job_state_t));
if (NULL == ps) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
*ps = *src;
*dest = ps;
return ORTE_SUCCESS;
}
int orte_dt_copy_node_state(orte_node_state_t **dest, orte_node_state_t *src, opal_data_type_t type)
{
orte_node_state_t *ps;
ps = (orte_node_state_t*)malloc(sizeof(orte_node_state_t));
if (NULL == ps) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
*ps = *src;
*dest = ps;
return ORTE_SUCCESS;
}
int orte_dt_copy_exit_code(orte_exit_code_t **dest, orte_exit_code_t *src, opal_data_type_t type)
{
orte_exit_code_t *ps;
ps = (orte_exit_code_t*)malloc(sizeof(orte_exit_code_t));
if (NULL == ps) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
*ps = *src;
*dest = ps;
return ORTE_SUCCESS;
}
/*
* JOB_MAP
*/
int orte_dt_copy_map(orte_job_map_t **dest, orte_job_map_t *src, opal_data_type_t type)
{
orte_std_cntr_t i;
if (NULL == src) {
*dest = NULL;
return ORTE_SUCCESS;
}
/* create the new object */
*dest = OBJ_NEW(orte_job_map_t);
if (NULL == *dest) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
/* copy data into it */
At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here: https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation. In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions: 1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior. 2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation. 3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so. As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes. This commit was SVN r25476.
2011-11-15 03:40:11 +00:00
(*dest)->mapping = src->mapping;
(*dest)->ranking = src->ranking;
#if OPAL_HAVE_HWLOC
(*dest)->binding = src->binding;
#endif
if (NULL != src->ppr) {
(*dest)->ppr = strdup(src->ppr);
}
(*dest)->display_map = src->display_map;
(*dest)->num_new_daemons = src->num_new_daemons;
(*dest)->daemon_vpid_start = src->daemon_vpid_start;
(*dest)->num_nodes = src->num_nodes;
/* copy the pointer array - have to do this manually
* as no dss.copy function is setup for that object
*/
(*dest)->nodes->lowest_free = src->nodes->lowest_free;
(*dest)->nodes->number_free = src->nodes->number_free;
(*dest)->nodes->size = src->nodes->size;
(*dest)->nodes->max_size = src->nodes->max_size;
(*dest)->nodes->block_size = src->nodes->block_size;
for (i=0; i < src->nodes->size; i++) {
(*dest)->nodes->addr[i] = src->nodes->addr[i];
}
return ORTE_SUCCESS;
}
/*
* RML tag
*/
int orte_dt_copy_tag(orte_rml_tag_t **dest, orte_rml_tag_t *src, opal_data_type_t type)
{
orte_rml_tag_t *tag;
if (NULL == src) {
*dest = NULL;
return ORTE_SUCCESS;
}
/* create the new space */
tag = (orte_rml_tag_t*)malloc(sizeof(orte_rml_tag_t));
if (NULL == tag) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
/* copy data into it */
*tag = *src;
*dest = tag;
return ORTE_SUCCESS;
}
int orte_dt_copy_daemon_cmd(orte_daemon_cmd_flag_t **dest, orte_daemon_cmd_flag_t *src, opal_data_type_t type)
{
size_t datasize;
datasize = sizeof(orte_daemon_cmd_flag_t);
*dest = (orte_daemon_cmd_flag_t*)malloc(datasize);
if (NULL == *dest) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
memcpy(*dest, src, datasize);
return ORTE_SUCCESS;
}
int orte_dt_copy_iof_tag(orte_iof_tag_t **dest, orte_iof_tag_t *src, opal_data_type_t type)
{
size_t datasize;
datasize = sizeof(orte_iof_tag_t);
*dest = (orte_iof_tag_t*)malloc(datasize);
if (NULL == *dest) {
ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
return ORTE_ERR_OUT_OF_RESOURCE;
}
memcpy(*dest, src, datasize);
return ORTE_SUCCESS;
}