+++ /dev/null
-/* 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 */
-
-/* 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");
-
-/** @addtogroup MSG_examples
- *
- * - <b>priority/priority.c</b>: Demonstrates the use of @ref
- * MSG_task_set_bound to change the computation priority of a
- * given task.
- *
- */
-
-static int worker_main(int argc, char *argv[])
-{
- double computation_amount = atof(argv[1]);
- int use_bound = atoi(argv[2]);
- double bound = atof(argv[3]);
-
- {
- double clock_sta = MSG_get_clock();
-
- msg_task_t task = MSG_task_create("Task", computation_amount, 0, NULL);
- if (use_bound)
- MSG_task_set_bound(task, bound);
- MSG_task_execute(task);
- MSG_task_destroy(task);
-
- double clock_end = MSG_get_clock();
- double duration = clock_end - clock_sta;
- double flops_per_sec = computation_amount / duration;
-
- if (use_bound)
- XBT_INFO("bound to %f => duration %f (%f flops/s)", bound, duration, flops_per_sec);
- else
- XBT_INFO("not bound => duration %f (%f flops/s)", duration, flops_per_sec);
- }
-
- return 0;
-}
-
-static void launch_worker(msg_host_t host, const char *pr_name, double computation_amount, int use_bound, double bound)
-{
- char **argv = xbt_new(char *, 5);
- argv[0] = xbt_strdup(pr_name);
- argv[1] = bprintf("%f", computation_amount);
- argv[2] = bprintf("%d", use_bound);
- argv[3] = bprintf("%f", bound);
- argv[4] = NULL;
-
- MSG_process_create_with_arguments(pr_name, worker_main, NULL, host, 4, argv);
-}
-
-
-
-static int worker_busy_loop_main(int argc, char *argv[])
-{
- msg_task_t *task = MSG_process_get_data(MSG_process_self());
- for (;;)
- MSG_task_execute(*task);
-
- return 0;
-}
-
-/* FIXME: */
-#define DOUBLE_MAX 1e11
-
-static void test_dynamic_change(void)
-{
- 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 vm0 = MSG_vm_create_core(pm0, "VM0");
- msg_host_t vm1 = MSG_vm_create_core(pm0, "VM1");
- MSG_vm_start(vm0);
- MSG_vm_start(vm1);
-
- msg_task_t task0 = MSG_task_create("Task0", DOUBLE_MAX, 0, NULL);
- msg_task_t task1 = MSG_task_create("Task1", DOUBLE_MAX, 0, NULL);
- msg_process_t pr0 = MSG_process_create("worker0", worker_busy_loop_main, &task0, vm0);
- msg_process_t pr1 = MSG_process_create("worker1", worker_busy_loop_main, &task1, vm1);
-
-
- double task0_remain_prev = MSG_task_get_remaining_computation(task0);
- double task1_remain_prev = MSG_task_get_remaining_computation(task1);
-
- {
- const double cpu_speed = MSG_get_host_speed(pm0);
- int i = 0;
- for (i = 0; i < 10; i++) {
- double new_bound = (cpu_speed / 10) * i;
- XBT_INFO("set bound of VM1 to %f", new_bound);
- MSG_vm_set_bound(vm1, new_bound);
- MSG_process_sleep(100);
-
- double task0_remain_now = MSG_task_get_remaining_computation(task0);
- double task1_remain_now = MSG_task_get_remaining_computation(task1);
-
- double task0_flops_per_sec = task0_remain_prev - task0_remain_now;
- double task1_flops_per_sec = task1_remain_prev - task1_remain_now;
-
- XBT_INFO("Task0@VM0: %f flops/s", task0_flops_per_sec / 100);
- XBT_INFO("Task1@VM1: %f flops/s", task1_flops_per_sec / 100);
-
- task0_remain_prev = task0_remain_now;
- task1_remain_prev = task1_remain_now;
- }
- }
-
- MSG_process_kill(pr0);
- MSG_process_kill(pr1);
-
- MSG_vm_destroy(vm0);
- MSG_vm_destroy(vm1);
-}
-
-
-
-static void test_one_task(msg_host_t hostA)
-{
- const double cpu_speed = MSG_get_host_speed(hostA);
- const double computation_amount = cpu_speed * 10;
- const char *hostA_name = MSG_host_get_name(hostA);
-
- XBT_INFO("### Test: with/without MSG_task_set_bound");
-
-#if 0
- /* Easy-to-understand code (without calling MSG_task_set_bound) */
- {
- double clock_sta = MSG_get_clock();
-
- msg_task_t task = MSG_task_create("Task", computation_amount, 0, NULL);
- MSG_task_execute(task);
- MSG_task_destroy(task);
-
- double clock_end = MSG_get_clock();
- double duration = clock_end - clock_sta;
- double flops_per_sec = computation_amount / duration;
-
- XBT_INFO("not bound => duration %f (%f flops/s)", duration, flops_per_sec);
- }
-
- /* Easy-to-understand code (with calling MSG_task_set_bound) */
- {
- double clock_sta = MSG_get_clock();
-
- msg_task_t task = MSG_task_create("Task", computation_amount, 0, NULL);
- MSG_task_set_bound(task, cpu_speed / 2);
- MSG_task_execute(task);
- MSG_task_destroy(task);
-
- double clock_end = MSG_get_clock();
- double duration = clock_end - clock_sta;
- double flops_per_sec = computation_amount / duration;
-
- XBT_INFO("bound to 0.5 => duration %f (%f flops/s)", duration, flops_per_sec);
- }
-#endif
-
- {
- XBT_INFO("### Test: no bound for Task1@%s", hostA_name);
- launch_worker(hostA, "worker0", computation_amount, 0, 0);
- }
-
- MSG_process_sleep(1000);
-
- {
- XBT_INFO("### Test: 50%% for Task1@%s", hostA_name);
- launch_worker(hostA, "worker0", computation_amount, 1, cpu_speed / 2);
- }
-
- MSG_process_sleep(1000);
-
- {
- XBT_INFO("### Test: 33%% for Task1@%s", hostA_name);
- launch_worker(hostA, "worker0", computation_amount, 1, cpu_speed / 3);
- }
-
- MSG_process_sleep(1000);
-
- {
- XBT_INFO("### Test: zero for Task1@%s (i.e., unlimited)", hostA_name);
- launch_worker(hostA, "worker0", computation_amount, 1, 0);
- }
-
- MSG_process_sleep(1000);
-
- {
- XBT_INFO("### Test: 200%% for Task1@%s (i.e., meaningless)", hostA_name);
- launch_worker(hostA, "worker0", computation_amount, 1, cpu_speed * 2);
- }
-
- MSG_process_sleep(1000);
-}
-
-
-static void test_two_tasks(msg_host_t hostA, msg_host_t hostB)
-{
- const double cpu_speed = MSG_get_host_speed(hostA);
- xbt_assert(cpu_speed == MSG_get_host_speed(hostB));
- const double computation_amount = cpu_speed * 10;
- const char *hostA_name = MSG_host_get_name(hostA);
- const char *hostB_name = MSG_host_get_name(hostB);
-
- {
- XBT_INFO("### Test: no bound for Task1@%s, no bound for Task2@%s", hostA_name, hostB_name);
- launch_worker(hostA, "worker0", computation_amount, 0, 0);
- launch_worker(hostB, "worker1", computation_amount, 0, 0);
- }
-
- MSG_process_sleep(1000);
-
- {
- XBT_INFO("### Test: 0 for Task1@%s, 0 for Task2@%s (i.e., unlimited)", hostA_name, hostB_name);
- launch_worker(hostA, "worker0", computation_amount, 1, 0);
- launch_worker(hostB, "worker1", computation_amount, 1, 0);
- }
-
- MSG_process_sleep(1000);
-
- {
- XBT_INFO("### Test: 50%% for Task1@%s, 50%% for Task2@%s", hostA_name, hostB_name);
- launch_worker(hostA, "worker0", computation_amount, 1, cpu_speed / 2);
- launch_worker(hostB, "worker1", computation_amount, 1, cpu_speed / 2);
- }
-
- MSG_process_sleep(1000);
-
- {
- XBT_INFO("### Test: 25%% for Task1@%s, 25%% for Task2@%s", hostA_name, hostB_name);
- launch_worker(hostA, "worker0", computation_amount, 1, cpu_speed / 4);
- launch_worker(hostB, "worker1", computation_amount, 1, cpu_speed / 4);
- }
-
- MSG_process_sleep(1000);
-
- {
- XBT_INFO("### Test: 75%% for Task1@%s, 100%% for Task2@%s", hostA_name, hostB_name);
- launch_worker(hostA, "worker0", computation_amount, 1, cpu_speed * 0.75);
- launch_worker(hostB, "worker1", computation_amount, 1, cpu_speed);
- }
-
- MSG_process_sleep(1000);
-
- {
- XBT_INFO("### Test: no bound for Task1@%s, 25%% for Task2@%s", hostA_name, hostB_name);
- launch_worker(hostA, "worker0", computation_amount, 0, 0);
- launch_worker(hostB, "worker1", computation_amount, 1, cpu_speed / 4);
- }
-
- MSG_process_sleep(1000);
-
- {
- XBT_INFO("### Test: 75%% for Task1@%s, 25%% for Task2@%s", hostA_name, hostB_name);
- launch_worker(hostA, "worker0", computation_amount, 1, cpu_speed * 0.75);
- launch_worker(hostB, "worker1", computation_amount, 1, cpu_speed / 4);
- }
-
- MSG_process_sleep(1000);
-}
-
-static 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, 0, msg_host_t);
-
-
- {
- XBT_INFO("# 1. Put a single task on a PM. ");
- test_one_task(pm0);
- XBT_INFO(" ");
-
-
- XBT_INFO("# 2. Put two tasks on a PM.");
- test_two_tasks(pm0, pm0);
- XBT_INFO(" ");
- }
-
-
- {
- msg_host_t vm0 = MSG_vm_create_core(pm0, "VM0");
- MSG_vm_start(vm0);
-
- XBT_INFO("# 3. Put a single task on a VM. ");
- test_one_task(vm0);
- XBT_INFO(" ");
-
- XBT_INFO("# 4. Put two tasks on a VM.");
- test_two_tasks(vm0, vm0);
- XBT_INFO(" ");
-
-
- MSG_vm_destroy(vm0);
- }
-
-
- {
- msg_host_t vm0 = MSG_vm_create_core(pm0, "VM0");
- MSG_vm_start(vm0);
-
- XBT_INFO("# 6. Put a task on a PM and a task on a VM.");
- test_two_tasks(pm0, vm0);
- XBT_INFO(" ");
-
-
- MSG_vm_destroy(vm0);
- }
-
-
- {
- msg_host_t vm0 = MSG_vm_create_core(pm0, "VM0");
- const double cpu_speed = MSG_get_host_speed(pm0);
- MSG_vm_set_bound(vm0, cpu_speed / 10);
- MSG_vm_start(vm0);
-
- XBT_INFO("# 7. Put a single task on the VM capped by 10%%.");
- test_one_task(vm0);
- XBT_INFO(" ");
-
- XBT_INFO("# 8. Put two tasks on the VM capped by 10%%.");
- test_two_tasks(vm0, vm0);
- XBT_INFO(" ");
-
- XBT_INFO("# 9. Put a task on a PM and a task on the VM capped by 10%%.");
- test_two_tasks(pm0, vm0);
- XBT_INFO(" ");
-
- MSG_vm_destroy(vm0);
- }
-
-
- {
- msg_host_t vm0 = MSG_vm_create_core(pm0, "VM0");
-
- s_ws_params_t params;
- memset(¶ms, 0, sizeof(params));
- params.ramsize = 1L * 1000 * 1000 * 1000; // 1Gbytes
- MSG_host_set_params(vm0, ¶ms);
- MSG_vm_start(vm0);
-
- const double cpu_speed = MSG_get_host_speed(pm0);
- MSG_vm_start(vm0);
-
- XBT_INFO("# 10. Test migration");
- const double computation_amount = cpu_speed * 10;
-
- XBT_INFO("# 10. (a) Put a task on a VM without any bound.");
- launch_worker(vm0, "worker0", computation_amount, 0, 0);
- MSG_process_sleep(1000);
- XBT_INFO(" ");
-
- XBT_INFO("# 10. (b) set 10%% bound to the VM, and then put a task on the VM.");
- MSG_vm_set_bound(vm0, cpu_speed / 10);
- launch_worker(vm0, "worker0", computation_amount, 0, 0);
- MSG_process_sleep(1000);
- XBT_INFO(" ");
-
- XBT_INFO("# 10. (c) migrate");
- MSG_vm_migrate(vm0, pm1);
- XBT_INFO(" ");
-
- XBT_INFO("# 10. (d) Put a task again on the VM.");
- launch_worker(vm0, "worker0", computation_amount, 0, 0);
- MSG_process_sleep(1000);
- XBT_INFO(" ");
-
- MSG_vm_destroy(vm0);
- }
-
-
- XBT_INFO("# 11. Change a bound dynamically.");
- test_dynamic_change();
-
- return 0;
-}
-
-static 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 */
- if (argc != 2) {
- printf("Usage: %s example/msg/cloud/simple_plat.xml\n", argv[0]);
- return 1;
- }
-
- 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);
-}
