Add migrate_vm example.

[simgrid.git] / examples / msg / cloud / migrate_vm.c

diff --git a/examples/msg/cloud/migrate_vm.c b/examples/msg/cloud/migrate_vm.c
new file mode 100644 (file)
index 0000000..0ada43f
--- /dev/null
+++ b/examples/msg/cloud/migrate_vm.c
@@ -0,0 +1,163 @@
+/* Copyright (c) 2007-2012. 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 */
+
+/* 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");
+
+
+void vm_migrate(msg_vm_t vm, msg_host_t dst_pm)
+{
+  msg_host_t src_pm = MSG_vm_get_pm(vm);
+  double mig_sta = MSG_get_clock();
+  MSG_vm_migrate(vm, dst_pm);
+  double mig_end = MSG_get_clock();
+
+  XBT_INFO("%s migrated: %s->%s in %g s", MSG_vm_get_name(vm),
+                 MSG_host_get_name(src_pm), MSG_host_get_name(dst_pm),
+                 mig_end - mig_sta);
+}
+
+int migration_worker_main(int argc, char *argv[])
+{
+  xbt_assert(argc == 3);
+  char *vm_name = argv[1];
+  char *dst_pm_name = argv[2];
+
+  msg_vm_t vm = MSG_get_host_by_name(vm_name);
+  msg_host_t dst_pm = MSG_get_host_by_name(dst_pm_name);
+
+  vm_migrate(vm, dst_pm);
+
+  return 0;
+}
+
+void vm_migrate_async(msg_vm_t vm, msg_host_t dst_pm)
+{
+  const char *vm_name = MSG_vm_get_name(vm);
+  const char *dst_pm_name = MSG_host_get_name(dst_pm);
+  msg_host_t host = MSG_host_self();
+
+  const char *pr_name = "mig_wrk";
+  char **argv = xbt_new(char *, 4);
+  argv[0] = xbt_strdup(pr_name);
+  argv[1] = xbt_strdup(vm_name);
+  argv[2] = xbt_strdup(dst_pm_name);
+  argv[3] = NULL;
+
+  MSG_process_create_with_arguments(pr_name, migration_worker_main, NULL, host, 3, argv);
+}
+
+int master_main(int argc, char *argv[])
+{
+  xbt_dynar_t hosts_dynar = MSG_hosts_as_dynar();
+  msg_host_t pm0 = xbt_dynar_get_as(hosts_dynar, 0, msg_host_t);
+  msg_host_t pm1 = xbt_dynar_get_as(hosts_dynar, 1, msg_host_t);
+  msg_host_t pm2 = xbt_dynar_get_as(hosts_dynar, 2, msg_host_t);
+  msg_vm_t vm0, vm1;
+  s_ws_params_t params;
+  memset(&params, 0, sizeof(params));
+
+
+
+  vm0 = MSG_vm_create_core(pm0, "VM0");
+  params.ramsize = 1L * 1000 * 1000 * 1000; // 1Gbytes
+  MSG_host_set_params(vm0, &params);
+  MSG_vm_start(vm0);
+
+  XBT_INFO("Test: Migrate a VM with %ld Mbytes RAM", params.ramsize / 1000 / 1000);
+  vm_migrate(vm0, pm1);
+
+  MSG_vm_destroy(vm0);
+
+
+
+  vm0 = MSG_vm_create_core(pm0, "VM0");
+  params.ramsize = 1L * 1000 * 1000 * 100; // 100Mbytes
+  MSG_host_set_params(vm0, &params);
+  MSG_vm_start(vm0);
+
+  XBT_INFO("Test: Migrate a VM with %ld Mbytes RAM", params.ramsize / 1000 / 1000);
+  vm_migrate(vm0, pm1);
+
+  MSG_vm_destroy(vm0);
+
+
+
+  vm0 = MSG_vm_create_core(pm0, "VM0");
+  vm1 = MSG_vm_create_core(pm0, "VM1");
+
+  params.ramsize = 1L * 1000 * 1000 * 1000; // 1Gbytes
+  MSG_host_set_params(vm0, &params);
+  MSG_host_set_params(vm1, &params);
+  MSG_vm_start(vm0);
+  MSG_vm_start(vm1);
+
+  XBT_INFO("Test: Migrate two VMs at once from PM0 to PM1");
+  vm_migrate_async(vm0, pm1);
+  vm_migrate_async(vm1, pm1);
+  MSG_process_sleep(10000);
+
+  MSG_vm_destroy(vm0);
+  MSG_vm_destroy(vm1);
+
+
+
+  vm0 = MSG_vm_create_core(pm0, "VM0");
+  vm1 = MSG_vm_create_core(pm0, "VM1");
+
+  params.ramsize = 1L * 1000 * 1000 * 1000; // 1Gbytes
+  MSG_host_set_params(vm0, &params);
+  MSG_host_set_params(vm1, &params);
+  MSG_vm_start(vm0);
+  MSG_vm_start(vm1);
+
+  XBT_INFO("Test: Migrate two VMs at once to different PMs");
+  vm_migrate_async(vm0, pm1);
+  vm_migrate_async(vm1, pm2);
+  MSG_process_sleep(10000);
+
+  MSG_vm_destroy(vm0);
+  MSG_vm_destroy(vm1);
+
+
+  return 0;
+}
+
+void launch_master(msg_host_t host)
+{
+  const char *pr_name = "master_";
+  char **argv = xbt_new(char *, 2);
+  argv[0] = xbt_strdup(pr_name);
+  argv[1] = NULL;
+
+  MSG_process_create_with_arguments(pr_name, master_main, NULL, host, 1, argv);
+}
+
+
+int main(int argc, char *argv[])
+{
+  /* Get the arguments */
+  MSG_init(&argc, argv);
+
+  /* load the platform file */
+  MSG_create_environment(argv[1]);
+
+  xbt_dynar_t hosts_dynar = MSG_hosts_as_dynar();
+  msg_host_t pm0 = xbt_dynar_get_as(hosts_dynar, 0, msg_host_t);
+  launch_master(pm0);
+
+  int res = MSG_main();
+  XBT_INFO("Bye (simulation time %g)", MSG_get_clock());
+
+
+  return !(res == MSG_OK);
+}