X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/49e85177c669d793e84242983a1b1f430e47184e..3902bb71f8b79057f3b4d273fbc489b458a871d3:/examples/msg/cloud/bound.c diff --git a/examples/msg/cloud/bound.c b/examples/msg/cloud/bound.c deleted file mode 100644 index ee5fc4971a..0000000000 --- a/examples/msg/cloud/bound.c +++ /dev/null @@ -1,421 +0,0 @@ -/* 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 -#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 - * - * - priority/priority.c: 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); -}