222 строки
6.9 KiB
C
222 строки
6.9 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006-2010 QLogic Corporation. All rights reserved.
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* Copyright (c) 2012-2015 Los Alamos National Security, LLC.
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* All rights reserved.
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* Copyright (c) 2013-2015 Intel, Inc. All rights reserved
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "opal/mca/event/event.h"
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#include "opal/util/output.h"
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#include "opal/util/show_help.h"
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#include "ompi/proc/proc.h"
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#include "mtl_psm2.h"
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#include "mtl_psm2_types.h"
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#include "mtl_psm2_request.h"
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#include "psm2.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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static int param_priority;
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static int ompi_mtl_psm2_component_open(void);
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static int ompi_mtl_psm2_component_close(void);
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static int ompi_mtl_psm2_component_query(mca_base_module_t **module, int *priority);
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static int ompi_mtl_psm2_component_register(void);
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static mca_mtl_base_module_t* ompi_mtl_psm2_component_init( bool enable_progress_threads,
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bool enable_mpi_threads );
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mca_mtl_psm2_component_t mca_mtl_psm2_component = {
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{
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/* First, the mca_base_component_t struct containing meta
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* information about the component itself */
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.mtl_version = {
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MCA_MTL_BASE_VERSION_2_0_0,
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.mca_component_name = "psm2",
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MCA_BASE_MAKE_VERSION(component, OMPI_MAJOR_VERSION, OMPI_MINOR_VERSION,
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OMPI_RELEASE_VERSION),
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.mca_open_component = ompi_mtl_psm2_component_open,
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.mca_close_component = ompi_mtl_psm2_component_close,
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.mca_query_component = ompi_mtl_psm2_component_query,
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.mca_register_component_params = ompi_mtl_psm2_component_register,
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},
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.mtl_data = {
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/* The component is not checkpoint ready */
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MCA_BASE_METADATA_PARAM_NONE
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},
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.mtl_init = ompi_mtl_psm2_component_init,
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}
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};
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static int
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ompi_mtl_psm2_component_register(void)
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{
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ompi_mtl_psm2.connect_timeout = 180;
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(void) mca_base_component_var_register(&mca_mtl_psm2_component.super.mtl_version,
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"connect_timeout",
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"PSM2 connection timeout value in seconds",
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MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&ompi_mtl_psm2.connect_timeout);
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/* set priority high enough to beat ob1's default (also set higher than psm) */
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param_priority = 40;
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(void) mca_base_component_var_register (&mca_mtl_psm2_component.super.mtl_version,
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"priority", "Priority of the PSM2 MTL component",
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MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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¶m_priority);
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return OMPI_SUCCESS;
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}
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static int
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ompi_mtl_psm2_component_open(void)
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{
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struct stat st;
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/* Component available only if Omni-Path hardware is present */
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if (0 == stat("/dev/hfi1", &st)) {
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return OMPI_SUCCESS;
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}
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else {
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return OPAL_ERR_NOT_AVAILABLE;
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}
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}
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static int
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ompi_mtl_psm2_component_query(mca_base_module_t **module, int *priority)
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{
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/*
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* if we get here it means that PSM2 is available so give high priority
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*/
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*priority = param_priority;
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*module = (mca_base_module_t *)&ompi_mtl_psm2.super;
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return OMPI_SUCCESS;
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}
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static int
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ompi_mtl_psm2_component_close(void)
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{
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return OMPI_SUCCESS;
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}
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static int
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get_num_total_procs(int *out_ntp)
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{
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*out_ntp = (int)ompi_process_info.num_procs;
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return OMPI_SUCCESS;
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}
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static int
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get_num_local_procs(int *out_nlp)
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{
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/* num_local_peers does not include us in
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* its calculation, so adjust for that */
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*out_nlp = (int)(1 + ompi_process_info.num_local_peers);
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return OMPI_SUCCESS;
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}
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static int
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get_local_rank(int *out_rank)
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{
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ompi_node_rank_t my_node_rank;
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*out_rank = 0;
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if (OMPI_NODE_RANK_INVALID == (my_node_rank =
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ompi_process_info.my_node_rank)) {
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return OMPI_ERROR;
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}
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*out_rank = (int)my_node_rank;
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return OMPI_SUCCESS;
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}
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static mca_mtl_base_module_t *
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ompi_mtl_psm2_component_init(bool enable_progress_threads,
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bool enable_mpi_threads)
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{
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psm2_error_t err;
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int verno_major = PSM2_VERNO_MAJOR;
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int verno_minor = PSM2_VERNO_MINOR;
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int local_rank = -1, num_local_procs = 0;
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int num_total_procs = 0;
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/* Compute the total number of processes on this host and our local rank
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* on that node. We need to provide PSM2 with these values so it can
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* allocate hardware contexts appropriately across processes.
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*/
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if (OMPI_SUCCESS != get_num_local_procs(&num_local_procs)) {
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opal_output(0, "Cannot determine number of local processes. "
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"Cannot continue.\n");
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return NULL;
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}
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if (OMPI_SUCCESS != get_local_rank(&local_rank)) {
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opal_output(0, "Cannot determine local rank. Cannot continue.\n");
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return NULL;
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}
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if (OMPI_SUCCESS != get_num_total_procs(&num_total_procs)) {
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opal_output(0, "Cannot determine total number of processes. "
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"Cannot continue.\n");
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return NULL;
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}
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err = psm2_error_register_handler(NULL /* no ep */,
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PSM2_ERRHANDLER_NOP);
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if (err) {
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opal_output(0, "Error in psm2_error_register_handler (error %s)\n",
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psm2_error_get_string(err));
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return NULL;
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}
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if (num_local_procs == num_total_procs) {
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setenv("PSM2_DEVICES", "self,shm", 0);
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}
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err = psm2_init(&verno_major, &verno_minor);
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if (err) {
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opal_show_help("help-mtl-psm2.txt",
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"psm2 init", true,
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psm2_error_get_string(err));
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return NULL;
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}
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/* Complete PSM2 initialization */
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ompi_mtl_psm2_module_init(local_rank, num_local_procs);
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ompi_mtl_psm2.super.mtl_request_size =
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sizeof(mca_mtl_psm2_request_t) -
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sizeof(struct mca_mtl_request_t);
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return &ompi_mtl_psm2.super;
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}
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