From e673f975c63eb812ff26e1598684c2941859132a Mon Sep 17 00:00:00 2001 From: suter Date: Fri, 15 Jun 2012 09:36:13 +0200 Subject: [PATCH] add a new example that use SD_task_set_rate to throttle a communication --- examples/simdag/CMakeLists.txt | 4 ++ examples/simdag/sd_comm_throttling.c | 93 ++++++++++++++++++++++++++++ 2 files changed, 97 insertions(+) create mode 100644 examples/simdag/sd_comm_throttling.c diff --git a/examples/simdag/CMakeLists.txt b/examples/simdag/CMakeLists.txt index 8d99b16ae1..6a619bb0f1 100644 --- a/examples/simdag/CMakeLists.txt +++ b/examples/simdag/CMakeLists.txt @@ -5,6 +5,7 @@ set(EXECUTABLE_OUTPUT_PATH "${CMAKE_CURRENT_BINARY_DIR}") add_executable(ex_sd_test sd_test.c) add_executable(sd_test2 sd_test2.c) add_executable(sd_typed_tasks_test sd_typed_tasks_test.c) +add_executable(sd_comm_throttling sd_comm_throttling.c) add_executable(sd_seq_access sd_seq_access.c) add_executable(sd_test_console sd_test_console.c) add_executable(simdag_tracing simdag_trace.c) @@ -14,6 +15,7 @@ if(NOT WIN32) target_link_libraries(ex_sd_test simgrid pthread m ) target_link_libraries(sd_test2 simgrid pthread m ) target_link_libraries(sd_typed_tasks_test simgrid pthread m ) + target_link_libraries(sd_comm_throttling simgrid pthread m ) target_link_libraries(sd_seq_access simgrid pthread m ) target_link_libraries(sd_test_console simgrid pthread m ) target_link_libraries(simdag_tracing simgrid pthread m ) @@ -32,6 +34,7 @@ else(NOT WIN32) target_link_libraries(ex_sd_test simgrid) target_link_libraries(sd_test2 simgrid) target_link_libraries(sd_typed_tasks_test simgrid) + target_link_libraries(sd_comm_throttling simgrid) target_link_libraries(sd_seq_access simgrid) target_link_libraries(sd_test_console simgrid) target_link_libraries(simdag_tracing simgrid) @@ -66,6 +69,7 @@ set(examples_src ${CMAKE_CURRENT_SOURCE_DIR}/sd_test.c ${CMAKE_CURRENT_SOURCE_DIR}/sd_test_console.c ${CMAKE_CURRENT_SOURCE_DIR}/sd_typed_tasks_test.c + ${CMAKE_CURRENT_SOURCE_DIR}/sd_comm_throttling.c ${CMAKE_CURRENT_SOURCE_DIR}/simdag_trace.c PARENT_SCOPE ) diff --git a/examples/simdag/sd_comm_throttling.c b/examples/simdag/sd_comm_throttling.c new file mode 100644 index 0000000000..a9fb24f1dc --- /dev/null +++ b/examples/simdag/sd_comm_throttling.c @@ -0,0 +1,93 @@ +/* Copyright (c) 2006, 2007, 2008, 2009, 2010. 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 +#include "simdag/simdag.h" +#include "xbt/ex.h" +#include "xbt/log.h" + +XBT_LOG_NEW_DEFAULT_CATEGORY(sd_comm_throttling, + "Logging specific to this SimDag example"); + +int main(int argc, char **argv) +{ + unsigned int ctr; + const char *platform_file; + const SD_workstation_t *workstations; + SD_task_t task, taskA, taskB, taskC, taskD, taskE; + xbt_dynar_t changed_tasks; + + SD_workstation_t workstation_list[4]; + + /* initialization of SD */ + SD_init(&argc, argv); + + /* xbt_log_control_set("sd.thres=debug"); */ + + if (argc < 2) { + XBT_INFO("Usage: %s platform_file", argv[0]); + XBT_INFO("example: %s sd_platform.xml", argv[0]); + exit(1); + } + + /* creation of the environment */ + platform_file = argv[1]; + SD_create_environment(platform_file); + + workstations = SD_workstation_get_list(); + + /* creation of some typed tasks and their dependencies */ + /* chain of five tasks, three compute tasks with two data transfers */ + /* in between */ + taskA = SD_task_create_comp_seq("Task A", NULL, 5e9); + taskB = SD_task_create_comm_e2e("Task B", NULL, 1e7); + taskC = SD_task_create_comp_seq("Task C", NULL, 5e9); + taskD = SD_task_create_comm_e2e("Task D", NULL, 1e7); + taskE = SD_task_create_comp_seq("Task E", NULL, 5e9); + + SD_task_dependency_add(NULL, NULL, taskA, taskB); + SD_task_dependency_add(NULL, NULL, taskB, taskC); + SD_task_dependency_add(NULL, NULL, taskC, taskD); + SD_task_dependency_add(NULL, NULL, taskD, taskE); + + /* Add watchpoints on completion of compute tasks */ + SD_task_watch(taskA, SD_DONE); + SD_task_watch(taskC, SD_DONE); + SD_task_watch(taskE, SD_DONE); + + /* Auto-schedule the compute tasks on three different workstations */ + /* Data transfer tasks taskB and taskD are automagically scheduled */ + SD_task_schedulel(taskA, 1, workstations[0]); + SD_task_schedulel(taskC, 1, workstations[1]); + SD_task_schedulel(taskE, 1, workstations[0]); + while (!xbt_dynar_is_empty((changed_tasks = SD_simulate(-1.0)))) { + XBT_INFO("Simulation stopped after %.4f seconds", SD_get_clock()); + xbt_dynar_foreach(changed_tasks, ctr, task) { + XBT_INFO("Task '%s' start time: %f, finish time: %f", + SD_task_get_name(task), + SD_task_get_start_time(task), + SD_task_get_finish_time(task)); + + } + /* let throttle the communication for taskD if its parent is SD_DONE */ + if (SD_task_get_state(taskC) == SD_DONE) + SD_task_set_rate(taskD, 0.5); + } + + XBT_DEBUG("Destroying tasks..."); + + SD_task_destroy(taskA); + SD_task_destroy(taskB); + SD_task_destroy(taskC); + SD_task_destroy(taskD); + SD_task_destroy(taskE); + + XBT_DEBUG("Tasks destroyed. Exiting SimDag..."); + + SD_exit(); + return 0; +} -- 2.20.1