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/*
* Copyright (c) 2004-2008 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 (c) 2006-2007 Cisco Systems, Inc. All rights reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
/* This component will only be compiled on File, where we are
guaranteed to have <unistd.h> and friends */
#include <stdio.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif /* HAVE_STDLIB_H */
#ifdef HAVE_STRING_H
#include <string.h>
#endif /* HAVE_STRING_H */
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif /* HAVE_ERRNO_H */
#include "opal/constants.h"
#include "opal/mca/base/mca_base_param.h"
#include "opal/util/argv.h"
#include "opal/util/show_help.h"
#include "opal/mca/carto/carto.h"
#include "opal/mca/carto/base/base.h"
#include "opal/mca/carto/base/carto_base_graph.h"
#include "carto_file.h"
#include "carto_file_lex.h"
char *carto_file_path;
static int opal_carto_file_init(void);
static int opal_carto_file_finalize(void);
static int opal_carto_file_parse(const char *cartofile);
/*
* File carto module
*/
static const opal_carto_base_module_1_0_0_t loc_module = {
opal_carto_file_init,
opal_carto_base_graph_get_host_graph_fn,
opal_carto_base_free_graph_fn,
opal_carto_base_get_nodes_distance_fn,
opal_carto_base_graph_spf_fn,
opal_carto_base_graph_find_node_fn,
opal_carto_file_finalize,
};
int opal_carto_file_component_query(mca_base_module_t **module, int *priority)
{
int param;
param = mca_base_param_find("carto", "file", "priority");
mca_base_param_lookup_int(param, priority);
param = mca_base_param_find("carto", "file", "path");
mca_base_param_lookup_string(param, &carto_file_path);
*module = (mca_base_module_t *)&loc_module;
return OPAL_SUCCESS;
}
/**
* Init the carto file module.
*
* @return int success or error
*/
static int opal_carto_file_init(void)
{
int rc;
/* create an empty graph */
if (NULL == opal_carto_base_common_host_graph) {
opal_carto_base_graph_create_fn(&opal_carto_base_common_host_graph);
}
if (NULL == carto_file_path) {
return OPAL_ERROR;
}
/* parse the carto file and add nodes and connections to the graph */
rc = opal_carto_file_parse(carto_file_path);
return rc;
}
/**
* finalize the carto file module.
*
* @return int success or error
*/
static int opal_carto_file_finalize(void)
{
/* free the host cartography graph. */
if (NULL != opal_carto_base_common_host_graph) {
opal_carto_base_free_graph_fn(opal_carto_base_common_host_graph);
}
return OPAL_SUCCESS;
}
/**
* Parse the carto file and file the host graph with nodes and
* connections.
*
* @param cartofile the path to the carto file.
*
* @return int success or error.
*/
static int opal_carto_file_parse(const char *cartofile)
{
int token;
opal_carto_base_node_t *node, *end_node;
uint32_t weight;
char *node1_name, *node2_name, *value, **argv;
int cnt, line_number = 1;
char *token_to_string[] = {
"New-line",
"File-error",
"Node deceleration",
"Connection deceleration",
"bi directional connection",
"Integer",
"Name",
"Node connection",
"Undefined"
"Undefined"
"Undefined"
};
/* set the done flag to false. at the end of file the the lexical analyzer will set it to true */
carto_file_done = false;
carto_file_in = fopen(cartofile, "r"); /* open the carto file */
/* if the file not found, return an error */
if (NULL == carto_file_in) {
opal_show_help("help-opal-carto-file.txt", "file not found", true, cartofile);
return OPAL_ERR_NOT_FOUND;
}
while (!carto_file_done) {
token = carto_file_lex();
switch (token) {
case OPAL_CARTO_FILE_NEWLINE:
line_number++;
break;
case OPAL_CARTO_FILE_NODE_DECELERATION:
token = carto_file_lex();
switch (token) {
case OPAL_CARTO_FILE_NAME:
node = (opal_carto_base_node_t *)malloc(sizeof(opal_carto_base_node_t));
node->node_type = strdup(carto_file_value.sval);
if (0 == strcmp("socket",node->node_type)) {
node->is_cpu = true;
}
else {
node->is_cpu = false;
}
token = carto_file_lex();
switch (token) {
case OPAL_CARTO_FILE_NAME:
node->node_name = strdup(carto_file_value.sval);
opal_carto_base_graph_add_node_fn(opal_carto_base_common_host_graph, node);
break;
default:
free(node);
opal_show_help("help-opal-carto-file.txt", "expected node name",
true, cartofile, line_number, token_to_string[token]);
goto error;
}
break;
default:
opal_show_help("help-opal-carto-file.txt", "expected node type",
true, cartofile, line_number, token_to_string[token]);
goto error;
}
break;
case OPAL_CARTO_FILE_CONNECTION_DECELERATION:
token = carto_file_lex();
switch (token) {
case OPAL_CARTO_FILE_NAME:
node1_name = strdup(carto_file_value.sval);
while (OPAL_CARTO_FILE_NEWLINE != token) {
token = carto_file_lex();
switch (token) {
case OPAL_CARTO_FILE_NODE_CONNECTION:
value = carto_file_value.sval;
argv = opal_argv_split (value, ':');
cnt = opal_argv_count (argv);
if (2 == cnt) {
node2_name = strdup(argv[0]);
weight = atoi(argv[1]);
} else {
opal_show_help("help-opal-carto-file.txt", "incorrect connection", true, cartofile, line_number, value);
opal_argv_free (argv);
free(node1_name);
goto error;
}
opal_argv_free (argv);
/* find the start node of the connection */
node = opal_carto_base_graph_find_node_fn(opal_carto_base_common_host_graph,node1_name);
if (NULL == node) {
opal_show_help("help-opal-carto-file.txt", "vertex not found", true, cartofile, line_number, node1_name);
free(node1_name);
free(node2_name);
goto error;
}
/* find the end node of the connection */
end_node = opal_carto_base_graph_find_node_fn(opal_carto_base_common_host_graph,node2_name);
if (NULL == end_node) {
opal_show_help("help-opal-carto-file.txt", "vertex not found", true, cartofile, line_number, node2_name);
free(node1_name);
free(node2_name);
goto error;
}
opal_carto_base_connect_nodes_fn(opal_carto_base_common_host_graph, node, end_node, weight);
free(node2_name);
break;
case OPAL_CARTO_FILE_NEWLINE:
line_number++;
break;
default:
opal_show_help("help-opal-carto-file.txt", "expected Connection",
true, cartofile, line_number, token_to_string[token]);
free(node1_name);
goto error;
}
}
free(node1_name);
break;
default:
opal_show_help("help-opal-carto-file.txt", "expected node name",
true, cartofile, line_number, token_to_string[token]);
goto error;
}
break;
case OPAL_CARTO_FILE_BIDIRECTION_CONNECTION:
token = carto_file_lex();
switch (token) {
case OPAL_CARTO_FILE_NAME:
node1_name = strdup(carto_file_value.sval);
while (OPAL_CARTO_FILE_NEWLINE != token) {
token = carto_file_lex();
switch (token) {
case OPAL_CARTO_FILE_NODE_CONNECTION:
value = carto_file_value.sval;
argv = opal_argv_split (value, ':');
cnt = opal_argv_count (argv);
if (2 == cnt) {
node2_name = strdup(argv[0]);
weight = atoi(argv[1]);
} else {
opal_show_help("help-opal-carto-file.txt", "incorrect connection", true, cartofile, line_number, value);
opal_argv_free (argv);
free(node1_name);
goto error;
}
opal_argv_free (argv);
/* find the start node of the connection */
node = opal_carto_base_graph_find_node_fn(opal_carto_base_common_host_graph,node1_name);
if (NULL == node) {
opal_show_help("help-opal-carto-file.txt", "vertex not found", true, cartofile, line_number, node1_name);
free(node1_name);
free(node2_name);
goto error;
}
/* find the end node of the connection */
end_node = opal_carto_base_graph_find_node_fn(opal_carto_base_common_host_graph,node2_name);
if (NULL == end_node) {
opal_show_help("help-opal-carto-file.txt", "vertex not found", true, cartofile, line_number, node2_name);
free(node1_name);
free(node2_name);
goto error;
}
opal_carto_base_connect_nodes_fn(opal_carto_base_common_host_graph, node, end_node, weight);
opal_carto_base_connect_nodes_fn(opal_carto_base_common_host_graph, end_node, node, weight);
free(node2_name);
break;
case OPAL_CARTO_FILE_NEWLINE:
line_number++;
break;
default:
opal_show_help("help-opal-carto-file.txt", "expected Connection",
true, cartofile, line_number, token_to_string[token]);
free(node1_name);
goto error;
}
}
free(node1_name);
break;
default:
opal_show_help("help-opal-carto-file.txt", "expected node name",
true, cartofile, line_number, token_to_string[token]);
goto error;
}
break;
default:
opal_show_help("help-opal-carto-file.txt", "expected deceleration",
true, cartofile, line_number, token_to_string[token]);
goto error;
}
}
return OPAL_SUCCESS;
error:
fclose(carto_file_in);
return OPAL_ERR_BAD_PARAM;
}
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