-/* Copyright (c) 2007-2014. The SimGrid Team.
+/* Copyright (c) 2007-2015. 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"
-#include "xbt/sysdep.h" /* calloc, printf */
+#include "simgrid/msg.h"
-/* 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");
+
+#define MAXMBOXLEN 64
/** @addtogroup MSG_examples
*
const double task_comp_size = 10000000;
const double task_comm_size = 10000000;
-
-int master_fun(int argc, char *argv[]);
-int worker_fun(int argc, char *argv[]);
-
-
static void send_tasks(int nb_workers)
{
- int i;
- for (i = 0; i < nb_workers; i++) {
+ for (int i = 0; i < nb_workers; i++) {
char *tname = bprintf("Task%02d", i);
char *mbox = bprintf("MBOX:WRK%02d", i);
}
}
-int master_fun(int argc, char *argv[])
+static int worker_fun(int argc, char *argv[])
+{
+ const char *pr_name = MSG_process_get_name(MSG_process_self());
+ char mbox[MAXMBOXLEN];
+ snprintf(mbox, MAXMBOXLEN, "MBOX:%s", pr_name);
+
+ XBT_INFO("%s is listening on mailbox(%s)", pr_name, mbox);
+
+ for (;;) {
+ msg_task_t task = NULL;
+
+ msg_error_t res = MSG_task_receive(&task, mbox);
+ if (res != MSG_OK) {
+ XBT_CRITICAL("MSG_task_get failed");
+ DIE_IMPOSSIBLE;
+ }
+
+ XBT_INFO("%s received task(%s) from mailbox(%s)", pr_name, MSG_task_get_name(task), mbox);
+
+ if (!strcmp(MSG_task_get_name(task), "finalize")) {
+ MSG_task_destroy(task);
+ break;
+ }
+
+ MSG_task_execute(task);
+ XBT_INFO("%s executed task(%s)", pr_name, MSG_task_get_name(task));
+ MSG_task_destroy(task);
+ }
+ return 0;
+}
+
+static int master_fun(int argc, char *argv[])
{
msg_vm_t vm;
unsigned int i;
xbt_dynar_t vms = xbt_dynar_new(sizeof(msg_vm_t), NULL);
-
/* Launch VMs and worker processes. One VM per PM, and one worker process per VM. */
-
XBT_INFO("# Launch %d VMs", nb_workers);
- for (i = 0; i< nb_workers; i++) {
+ for (int i = 0; i< nb_workers; i++) {
char *vm_name = bprintf("VM%02d", i);
char *pr_name = bprintf("WRK%02d", i);
XBT_INFO("create %s on PM(%s)", vm_name, MSG_host_get_name(pm));
msg_vm_t vm = MSG_vm_create_core(pm, vm_name);
- s_ws_params_t params;
+ s_vm_params_t params;
memset(¶ms, 0, sizeof(params));
params.ramsize = 1L * 1024 * 1024 * 1024; // 1Gbytes
MSG_host_set_params(vm, ¶ms);
xbt_free(pr_name);
}
-
/* Send a bunch of work to every one */
XBT_INFO("# Send a task to %d worker process", nb_workers);
send_tasks(nb_workers);
MSG_vm_resume(vm);
}
-
XBT_INFO("# Sleep long enough for everyone to be done with previous batch of work");
MSG_process_sleep(1000 - MSG_get_clock());
MSG_vm_migrate(vm, worker_pm1);
}
-
XBT_INFO("# Shutdown the half of worker processes gracefuly. The remaining half will be forcibly killed.");
for (i = 0; i < nb_workers; i++) {
- char mbox[64];
- sprintf(mbox, "MBOX:WRK%02d", i);
+ char mbox[MAXMBOXLEN];
+ snprintf(mbox, MAXMBOXLEN, "MBOX:WRK%02d", i);
msg_task_t finalize = MSG_task_create("finalize", 0, 0, 0);
MSG_task_send(finalize, mbox);
}
XBT_INFO("# Wait a while before effective shutdown.");
MSG_process_sleep(2);
-
XBT_INFO("# Shutdown and destroy all the VMs. The remaining worker processes will be forcibly killed.");
xbt_dynar_foreach(vms, i, vm) {
XBT_INFO("shutdown %s", MSG_host_get_name(vm));
XBT_INFO("# Goodbye now!");
xbt_dynar_free(&vms);
-
return 0;
}
/** Receiver function */
-int worker_fun(int argc, char *argv[])
-{
- const char *pr_name = MSG_process_get_name(MSG_process_self());
- char *mbox = bprintf("MBOX:%s", pr_name);
-
- XBT_INFO("%s is listenning on mailbox(%s)", pr_name, mbox);
-
- for (;;) {
- msg_task_t task = NULL;
-
- msg_error_t res = MSG_task_receive(&task, mbox);
- if (res != MSG_OK) {
- XBT_CRITICAL("MSG_task_get failed");
- DIE_IMPOSSIBLE;
- }
-
- XBT_INFO("%s received task(%s) from mailbox(%s)",
- pr_name, MSG_task_get_name(task), mbox);
-
- if (!strcmp(MSG_task_get_name(task), "finalize")) {
- MSG_task_destroy(task);
- break;
- }
-
- MSG_task_execute(task);
- XBT_INFO("%s executed task(%s)", pr_name, MSG_task_get_name(task));
- MSG_task_destroy(task);
- }
-
- free(mbox);
-
- return 0;
-}
-
-
-
-
int main(int argc, char *argv[])
{
const int nb_workers = 2;
MSG_init(&argc, argv);
- if (argc != 2) {
- printf("Usage: %s example/msg/msg_platform.xml\n", argv[0]);
- return 1;
- }
+ xbt_assert(argc >1,"Usage: %s example/msg/msg_platform.xml\n", argv[0]);
/* Load the platform file */
MSG_create_environment(argv[1]);
xbt_dynar_t pms = MSG_hosts_as_dynar();
/* we need a master node and worker nodes */
- if (xbt_dynar_length(pms) < nb_workers + 1) {
- XBT_CRITICAL("need %d hosts", nb_workers + 1);
- return 1;
- }
+ xbt_assert(xbt_dynar_length(pms) > nb_workers,"need %d hosts", nb_workers + 1);
/* the first pm is the master, the others are workers */
msg_host_t master_pm = xbt_dynar_get_as(pms, 0, msg_host_t);
xbt_dynar_t worker_pms = xbt_dynar_new(sizeof(msg_host_t), NULL);
- int i;
- for (i = 1; i < nb_workers + 1; i++) {
+ for (int i = 1; i < nb_workers + 1; i++) {
msg_host_t pm = xbt_dynar_get_as(pms, i, msg_host_t);
xbt_dynar_push(worker_pms, &pm);
}
-
/* Start the master process on the master pm. */
MSG_process_create("master", master_fun, worker_pms, master_pm);
