X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/3c6ccc91eba46281d4ed926bf506e27e794add67..3902bb71f8b79057f3b4d273fbc489b458a871d3:/examples/msg/cloud-capping/cloud-capping.c diff --git a/examples/msg/cloud-capping/cloud-capping.c b/examples/msg/cloud-capping/cloud-capping.c new file mode 100644 index 0000000000..aef36265ba --- /dev/null +++ b/examples/msg/cloud-capping/cloud-capping.c @@ -0,0 +1,321 @@ +/* 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 "simgrid/msg.h" + +XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example"); + +/** @addtogroup MSG_examples + * + * - cloud/bound.c: Demonstrates the use of @ref MSG_task_set_bound + */ + +static int worker_main(int argc, char *argv[]) +{ + double computation_amount = xbt_str_parse_double(argv[1], "Invalid computation amount: %s"); + int use_bound = xbt_str_parse_int(argv[2], "Second parameter (use_bound) should be 0 or 1 but is: %s"); + double bound = xbt_str_parse_double(argv[3], "Invalid bound: %s"); + + 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()); + 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_create("worker0", worker_busy_loop_main, &task0, vm0); + MSG_process_create("worker1", worker_busy_loop_main, &task1, vm1); + + double task0_remain_prev = MSG_task_get_flops_amount(task0); + double task1_remain_prev = MSG_task_get_flops_amount(task1); + + { + const double cpu_speed = MSG_host_get_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_flops_amount(task0); + double task1_remain_now = MSG_task_get_flops_amount(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_sleep(2000); // let the tasks end + + MSG_vm_destroy(vm0); + MSG_vm_destroy(vm1); +} + +static void test_one_task(msg_host_t hostA) +{ + const double cpu_speed = MSG_host_get_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"); + + 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_host_get_speed(hostA); + xbt_assert(cpu_speed == MSG_host_get_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); + + 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); + + vm0 = MSG_vm_create_core(pm0, "VM0"); + double cpu_speed = MSG_host_get_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); + + vm0 = MSG_vm_create_core(pm0, "VM0"); + + s_vm_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); + + cpu_speed = MSG_host_get_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 */ + xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s ../platforms/small_platform.xml\n", argv[0], argv[0]); + + 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); +}