-/* $Id$ */
-
-/* Copyright (c) 2002,2003,2004 Arnaud Legrand. All rights reserved. */
+/* Copyright (c) 2007-2014. The SimGrid Team.
+ * All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include <stdio.h>
-#include "msg/msg.h" /* Yeah! If you want to use msg, you need to include msg/msg.h */
-#include "xbt/sysdep.h" /* calloc, printf */
+#include "msg/msg.h" /* Yeah! If you want to use msg, you need to include msg/msg.h */
+#include "xbt/sysdep.h" /* calloc, printf */
/* Create a log channel to have nice outputs. */
#include "xbt/log.h"
#include "xbt/asserts.h"
-XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,"Messages specific for this msg example");
+XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
+ "Messages specific for this msg example");
+
+/** @addtogroup MSG_examples
+ *
+ * - <b>parallel_task/parallel_task.c</b>: Demonstrates the use of
+ * @ref MSG_parallel_task_create, to create special tasks that run
+ * on several hosts at the same time. The resulting simulations are
+ * very close to what can be achieved in @ref SD_API, but still
+ * allows to use the other features of MSG (it'd be cool to be able
+ * to mix interfaces, but it's not possible ATM).
+ */
int test(int argc, char *argv[]);
-MSG_error_t test_all(const char *platform_file);
+msg_error_t test_all(const char *platform_file);
/** Emitter function */
int test(int argc, char *argv[])
{
+ xbt_dynar_t slaves_dynar;
int slaves_count = 0;
- m_host_t *slaves = NULL;
+ msg_host_t *slaves = NULL;
double task_comp_size = 100000;
double task_comm_size = 10000;
double *computation_amount = NULL;
double *communication_amount = NULL;
- m_task_t ptask = NULL;
- int i,j;
+ msg_task_t ptask = NULL;
+ int i, j;
+
+ slaves_dynar = MSG_hosts_as_dynar();
+ slaves_count = xbt_dynar_length(slaves_dynar);
+ slaves = xbt_dynar_to_array(slaves_dynar);
- slaves_count = MSG_get_host_number();
- slaves = MSG_get_host_table();
+ computation_amount = xbt_new0(double, slaves_count);
+ communication_amount = xbt_new0(double, slaves_count * slaves_count);
- computation_amount = xbt_new0(double,slaves_count);
- communication_amount = xbt_new0(double,slaves_count*slaves_count);
-
- for(i=0;i<slaves_count;i++)
- computation_amount[i]=task_comp_size;
+ for (i = 0; i < slaves_count; i++)
+ computation_amount[i] = task_comp_size;
- for(i=0;i<slaves_count;i++)
- for(j=i+1;j<slaves_count;j++)
- communication_amount[i*slaves_count+j]=task_comm_size;
+ for (i = 0; i < slaves_count; i++)
+ for (j = i + 1; j < slaves_count; j++)
+ communication_amount[i * slaves_count + j] = task_comm_size;
ptask = MSG_parallel_task_create("parallel task",
- slaves_count, slaves,
- computation_amount,
- communication_amount,
- NULL);
+ slaves_count, slaves,
+ computation_amount,
+ communication_amount, NULL);
MSG_parallel_task_execute(ptask);
+ MSG_task_destroy(ptask);
/* There is no need to free that! */
/* free(communication_amount); */
/* free(computation_amount); */
-
- INFO0("Goodbye now!");
+
+ XBT_INFO("Goodbye now!");
free(slaves);
return 0;
-}
+}
/** Test function */
-MSG_error_t test_all(const char *platform_file)
+msg_error_t test_all(const char *platform_file)
{
- MSG_error_t res = MSG_OK;
+ msg_error_t res = MSG_OK;
+ xbt_dynar_t all_hosts;
+ msg_host_t first_host;
- MSG_config("workstation_model","ptask_L07");
- MSG_set_channel_number(1);
+ MSG_config("workstation/model", "ptask_L07");
MSG_create_environment(platform_file);
- MSG_process_create("test",test,NULL,MSG_get_host_table()[0]);
+ all_hosts = MSG_hosts_as_dynar();
+ first_host = xbt_dynar_getfirst_as(all_hosts,msg_host_t);
+ MSG_process_create("test", test, NULL, first_host);
res = MSG_main();
-
- INFO1("Simulation time %g",MSG_get_clock());
+ xbt_dynar_free(&all_hosts);
+
+ XBT_INFO("Simulation time %g", MSG_get_clock());
return res;
}
int main(int argc, char *argv[])
{
- MSG_error_t res = MSG_OK;
+ msg_error_t res = MSG_OK;
- MSG_global_init(&argc,argv);
+ MSG_init(&argc, argv);
if (argc < 2) {
- printf ("Usage: %s platform_file\n",argv[0]);
- printf ("example: %s msg_platform.xml\n",argv[0]);
- exit(1);
+ printf("Usage: %s platform_file\n", argv[0]);
+ printf("example: %s msg_platform.xml\n", argv[0]);
+ exit(1);
}
res = test_all(argv[1]);
- MSG_clean();
- if(res==MSG_OK)
+ if (res == MSG_OK)
return 0;
else
return 1;
