xbt_dynar_foreach(dax, cursor, task) { int kind = SD_task_get_kind(task); SD_workstation_t *wsl = SD_task_get_workstation_list(task); switch (kind) { case SD_TASK_COMP_SEQ: fprintf(out, "[%f] %s compute %f # %s\n", SD_task_get_start_time(task), SD_workstation_get_name(wsl[0]), SD_task_get_amount(task), SD_task_get_name(task)); break; case SD_TASK_COMM_E2E: fprintf(out, "[%f] %s send %s %f # %s\n", SD_task_get_start_time(task), SD_workstation_get_name(wsl[0]), SD_workstation_get_name(wsl[1]), SD_task_get_amount(task), SD_task_get_name(task)); fprintf(out, "[%f] %s recv %s %f # %s\n", SD_task_get_finish_time(task), SD_workstation_get_name(wsl[1]), SD_workstation_get_name(wsl[0]), SD_task_get_amount(task), SD_task_get_name(task)); break; default: xbt_die("Task %s is of unknown kind %d", SD_task_get_name(task), SD_task_get_kind(task)); } SD_task_destroy(task); }
xbt_dynar_foreach(dot, cursor, task) { int kind = SD_task_get_kind(task); sg_host_t *wsl = SD_task_get_workstation_list(task); switch (kind) { case SD_TASK_COMP_SEQ: fprintf(out, "[%f->%f] %s compute %f flops # %s\n", SD_task_get_start_time(task), SD_task_get_finish_time(task), sg_host_get_name(wsl[0]), SD_task_get_amount(task), SD_task_get_name(task)); break; case SD_TASK_COMM_E2E: fprintf(out, "[%f -> %f] %s -> %s transfer of %.0f bytes # %s\n", SD_task_get_start_time(task), SD_task_get_finish_time(task), sg_host_get_name(wsl[0]), sg_host_get_name(wsl[1]), SD_task_get_amount(task), SD_task_get_name(task)); break; default: xbt_die("Task %s is of unknown kind %d", SD_task_get_name(task), SD_task_get_kind(task)); } SD_task_destroy(task); }
int main(int argc, char **argv) { unsigned int ctr; SD_task_t task; xbt_dynar_t changed_tasks; SD_init(&argc, argv); SD_create_environment(argv[1]); const sg_host_t *hosts = sg_host_list(); SD_task_t t1 = SD_task_create_comp_seq("t1", NULL, 25000000); SD_task_t c1 = SD_task_create_comm_e2e("c1", NULL, 125000000); SD_task_t t2 = SD_task_create_comp_seq("t2", NULL, 25000000); SD_task_t c2 = SD_task_create_comm_e2e("c2", NULL, 62500000); SD_task_t t3 = SD_task_create_comp_seq("t3", NULL, 25000000); SD_task_t c3 = SD_task_create_comm_e2e("c3", NULL, 31250000); SD_task_t t4 = SD_task_create_comp_seq("t4", NULL, 25000000); /* Add dependencies: t1->c1->t2->c2->t3 */ SD_task_dependency_add(NULL, NULL, t1, c1); SD_task_dependency_add(NULL, NULL, c1, t2); SD_task_dependency_add(NULL, NULL, t2, c2); SD_task_dependency_add(NULL, NULL, c2, t3); SD_task_dependency_add(NULL, NULL, t3, c3); SD_task_dependency_add(NULL, NULL, c3, t4); /* Schedule tasks t1 and w3 on first host, t2 on second host */ /* Transfers are auto-scheduled */ SD_task_schedulel(t1, 1, hosts[0]); SD_task_schedulel(t2, 1, hosts[1]); SD_task_schedulel(t3, 1, hosts[0]); SD_task_schedulel(t4, 1, hosts[1]); /* Add some watchpoint upon task completion */ SD_task_watch(t1, SD_DONE); SD_task_watch(c1, SD_DONE); SD_task_watch(t2, SD_DONE); SD_task_watch(c2, SD_DONE); SD_task_watch(t3, SD_DONE); SD_task_watch(c3, SD_DONE); SD_task_watch(t4, SD_DONE); while (!xbt_dynar_is_empty((changed_tasks = SD_simulate(-1.0)))) { XBT_INFO("link1: bw=%.0f, lat=%f", SD_route_get_bandwidth(hosts[0], hosts[1]), SD_route_get_latency(hosts[0], hosts[1])); XBT_INFO("Jupiter: speed=%.0f", sg_host_speed(hosts[0])* sg_host_get_available_speed(hosts[0])); XBT_INFO("Tremblay: speed=%.0f", sg_host_speed(hosts[1])* sg_host_get_available_speed(hosts[1])); 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)); if (SD_task_get_state(task)==SD_DONE) SD_task_destroy(task); } }
int main(int argc, char **argv) { unsigned int ctr; SD_task_t task; xbt_dynar_t changed_tasks; SD_init(&argc, argv); xbt_assert(argc > 1, "Usage: %s platform_file\n\nExample: %s two_clusters.xml", argv[0], argv[0]); SD_create_environment(argv[1]); sg_host_t *hosts = sg_host_list(); /* creation of some typed tasks and their dependencies */ /* chain of five tasks, three compute tasks with two data transfers in between */ SD_task_t taskA = SD_task_create_comp_seq("Task A", NULL, 5e9); SD_task_t taskB = SD_task_create_comm_e2e("Task B", NULL, 1e7); SD_task_t taskC = SD_task_create_comp_seq("Task C", NULL, 5e9); SD_task_t taskD = SD_task_create_comm_e2e("Task D", NULL, 1e7); SD_task_t 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, hosts[0]); SD_task_schedulel(taskC, 1, hosts[1]); SD_task_schedulel(taskE, 1, hosts[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 */ /* the bandwidth is 1.25e8, the data size is 1e7, and we want to throttle the bandwidth by a factor 2. * The rate is then 1.25e8/(2*1e7)=6.25 * Changing the rate is possible before the task execution starts (in SD_RUNNING state). */ if (SD_task_get_state(taskC) == SD_DONE && SD_task_get_state(taskD) < SD_RUNNING) SD_task_set_rate(taskD, 6.25); }
int main(int argc, char **argv) { sg_host_t host_list[2]; double computation_amount[2]; double communication_amount[4] = { 0 }; /* initialization of SD */ SD_init(&argc, argv); xbt_assert(argc > 1, "Usage: %s platform_file\n\nExample: %s two_clusters.xml", argv[0], argv[0]); SD_create_environment(argv[1]); /* test the estimation functions */ const sg_host_t *hosts = sg_host_list(); sg_host_t h1 = hosts[0]; sg_host_t h2 = hosts[1]; const char *name1 = sg_host_get_name(h1); const char *name2 = sg_host_get_name(h2); double comp_amount1 = 2000000; double comp_amount2 = 1000000; double comm_amount12 = 2000000; double comm_amount21 = 3000000; XBT_INFO("Computation time for %f flops on %s: %f", comp_amount1, name1, comp_amount1/sg_host_speed(h1)); XBT_INFO("Computation time for %f flops on %s: %f", comp_amount2, name2, comp_amount2/sg_host_speed(h2)); XBT_INFO("Route between %s and %s:", name1, name2); SD_link_t *route = SD_route_get_list(h1, h2); int route_size = SD_route_get_size(h1, h2); for (int i = 0; i < route_size; i++) XBT_INFO(" Link %s: latency = %f, bandwidth = %f", sg_link_name(route[i]), sg_link_latency(route[i]), sg_link_bandwidth(route[i])); xbt_free(route); XBT_INFO("Route latency = %f, route bandwidth = %f", SD_route_get_latency(h1, h2), SD_route_get_bandwidth(h1, h2)); XBT_INFO("Communication time for %f bytes between %s and %s: %f", comm_amount12, name1, name2, SD_route_get_latency(h1, h2) + comm_amount12 / SD_route_get_bandwidth(h1, h2)); XBT_INFO("Communication time for %f bytes between %s and %s: %f", comm_amount21, name2, name1, SD_route_get_latency(h2, h1) + comm_amount21 / SD_route_get_bandwidth(h2, h1)); /* creation of the tasks and their dependencies */ SD_task_t taskA = SD_task_create("Task A", NULL, 10.0); SD_task_t taskB = SD_task_create("Task B", NULL, 40.0); SD_task_t taskC = SD_task_create("Task C", NULL, 30.0); SD_task_t taskD = SD_task_create("Task D", NULL, 60.0); /* try to attach and retrieve user data to a task */ SD_task_set_data(taskA, static_cast<void*>(&comp_amount1)); if (fabs(comp_amount1 - (*(static_cast<double*>(SD_task_get_data(taskA))))) > 1e-12) XBT_ERROR("User data was corrupted by a simple set/get"); SD_task_dependency_add(NULL, NULL, taskB, taskA); SD_task_dependency_add(NULL, NULL, taskC, taskA); SD_task_dependency_add(NULL, NULL, taskD, taskB); SD_task_dependency_add(NULL, NULL, taskD, taskC); SD_task_dependency_add(NULL, NULL, taskB, taskC); try { SD_task_dependency_add(NULL, NULL, taskA, taskA); /* shouldn't work and must raise an exception */ xbt_die("Hey, I can add a dependency between Task A and Task A!"); } catch (xbt_ex& ex) { if (ex.category != arg_error) throw; /* this is a serious error */ } try { SD_task_dependency_add(NULL, NULL, taskB, taskA); /* shouldn't work and must raise an exception */ xbt_die("Oh oh, I can add an already existing dependency!"); } catch (xbt_ex& ex) { if (ex.category != arg_error) throw; } try { SD_task_dependency_remove(taskA, taskC); /* shouldn't work and must raise an exception */ xbt_die("Dude, I can remove an unknown dependency!"); } catch (xbt_ex& ex) { if (ex.category != arg_error) throw; } try { SD_task_dependency_remove(taskC, taskC); /* shouldn't work and must raise an exception */ xbt_die("Wow, I can remove a dependency between Task C and itself!"); } catch (xbt_ex& ex) { if (ex.category != arg_error) throw; } /* if everything is ok, no exception is forwarded or rethrown by main() */ /* watch points */ SD_task_watch(taskD, SD_DONE); SD_task_watch(taskB, SD_DONE); SD_task_unwatch(taskD, SD_DONE); /* scheduling parameters */ host_list[0] = h1; host_list[1] = h2; computation_amount[0] = comp_amount1; computation_amount[1] = comp_amount2; communication_amount[1] = comm_amount12; communication_amount[2] = comm_amount21; /* estimated time */ SD_task_t task = taskD; XBT_INFO("Estimated time for '%s': %f", SD_task_get_name(task), SD_task_get_execution_time(task, 2, host_list, computation_amount, communication_amount)); SD_task_schedule(taskA, 2, host_list, computation_amount, communication_amount, -1); SD_task_schedule(taskB, 2, host_list, computation_amount, communication_amount, -1); SD_task_schedule(taskC, 2, host_list, computation_amount, communication_amount, -1); SD_task_schedule(taskD, 2, host_list, computation_amount, communication_amount, -1); std::set<SD_task_t> *changed_tasks = simgrid::sd::simulate(-1.0); for (auto task: *changed_tasks){ 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)); } XBT_DEBUG("Destroying tasks..."); SD_task_destroy(taskA); SD_task_destroy(taskB); SD_task_destroy(taskC); SD_task_destroy(taskD); XBT_DEBUG("Tasks destroyed. Exiting SimDag..."); SD_exit(); return 0; }
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; /* 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 */ /* the bandwidth is 1.25e8, the data size is 1e7, and we want to throttle * the bandwidth by a factor 2. the rate is then 1.25e8/(2*1e7)=6.25 * Changing the rate is possible before the task execution starts (in SD_RUNNING * state). */ if (SD_task_get_state(taskC) == SD_DONE && SD_task_get_state(taskD) < SD_RUNNING) SD_task_set_rate(taskD, 6.25); xbt_dynar_free_container(&changed_tasks); }
int main(int argc, char **argv) { double computation_amount[1]; double communication_amount[2] = { 0 }; sg_host_t hosts[1]; /* initialization of SD */ SD_init(&argc, argv); /* creation of the environment */ SD_create_environment(argv[1]); /* creation of a single task that will poorly fail when the workstation will stop */ XBT_INFO("First test: COMP_SEQ task"); SD_task_t task = SD_task_create_comp_seq("Poor task", NULL, 2e10); SD_task_watch(task, SD_FAILED); SD_task_watch(task, SD_DONE); XBT_INFO("Schedule task '%s' on 'Faulty Host'", SD_task_get_name(task)); SD_task_schedulel(task, 1, sg_host_by_name("Faulty Host")); xbt_dynar_t tasks = SD_simulate(-1.0); xbt_dynar_free(&tasks); SD_task_dump(task); XBT_INFO("Task '%s' has failed. %.f flops remain to be done", SD_task_get_name(task), SD_task_get_remaining_amount(task)); XBT_INFO("let's unschedule task '%s' and reschedule it on the 'Safe Host'", SD_task_get_name(task)); SD_task_unschedule(task); SD_task_schedulel(task, 1, sg_host_by_name("Safe Host")); XBT_INFO("Run the simulation again"); tasks = SD_simulate(-1.0); xbt_dynar_free(&tasks); SD_task_dump(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)); SD_task_destroy(task); task=NULL; XBT_INFO("Second test: NON TYPED task"); task = SD_task_create("Poor parallel task", NULL, 2e10); SD_task_watch(task, SD_FAILED); SD_task_watch(task, SD_DONE); computation_amount[0] = 2e10; XBT_INFO("Schedule task '%s' on 'Faulty Host'", SD_task_get_name(task)); hosts[0] = sg_host_by_name("Faulty Host"); SD_task_schedule(task, 1, hosts, computation_amount, communication_amount,-1); tasks = SD_simulate(-1.0); xbt_dynar_free(&tasks); SD_task_dump(task); XBT_INFO("Task '%s' has failed. %.f flops remain to be done", SD_task_get_name(task), SD_task_get_remaining_amount(task)); XBT_INFO("let's unschedule task '%s' and reschedule it on the 'Safe Host'", SD_task_get_name(task)); SD_task_unschedule(task); hosts[0] = sg_host_by_name("Safe Host"); SD_task_schedule(task, 1, hosts, computation_amount, communication_amount,-1); XBT_INFO("Run the simulation again"); tasks = SD_simulate(-1.0); xbt_dynar_free(&tasks); SD_task_dump(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)); SD_task_destroy(task); SD_exit(); return 0; }
int main(int argc, char **argv) { int i; unsigned int ctr; const char *platform_file; const SD_workstation_t *workstations; const char *name1; const char *name2; double computation_amount1; double computation_amount2; double communication_amount12; double communication_amount21; const SD_link_t *route; int route_size; SD_task_t task, taskA, taskB, taskC, taskD, checkB, checkD; xbt_dynar_t changed_tasks; xbt_ex_t ex; const int workstation_number = 2; SD_workstation_t workstation_list[2]; double computation_amount[2]; double communication_amount[4] = { 0 }; double rate = -1.0; SD_workstation_t w1, w2; /* 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); /* test the estimation functions */ workstations = SD_workstation_get_list(); w1 = workstations[0]; w2 = workstations[1]; SD_workstation_set_access_mode(w2, SD_WORKSTATION_SEQUENTIAL_ACCESS); name1 = SD_workstation_get_name(w1); name2 = SD_workstation_get_name(w2); computation_amount1 = 2000000; computation_amount2 = 1000000; communication_amount12 = 2000000; communication_amount21 = 3000000; XBT_INFO("Computation time for %f flops on %s: %f", computation_amount1, name1, SD_workstation_get_computation_time(w1, computation_amount1)); XBT_INFO("Computation time for %f flops on %s: %f", computation_amount2, name2, SD_workstation_get_computation_time(w2, computation_amount2)); XBT_INFO("Route between %s and %s:", name1, name2); route = SD_route_get_list(w1, w2); route_size = SD_route_get_size(w1, w2); for (i = 0; i < route_size; i++) { XBT_INFO(" Link %s: latency = %f, bandwidth = %f", SD_link_get_name(route[i]), SD_link_get_current_latency(route[i]), SD_link_get_current_bandwidth(route[i])); } XBT_INFO("Route latency = %f, route bandwidth = %f", SD_route_get_current_latency(w1, w2), SD_route_get_current_bandwidth(w1, w2)); XBT_INFO("Communication time for %f bytes between %s and %s: %f", communication_amount12, name1, name2, SD_route_get_communication_time(w1, w2, communication_amount12)); XBT_INFO("Communication time for %f bytes between %s and %s: %f", communication_amount21, name2, name1, SD_route_get_communication_time(w2, w1, communication_amount21)); /* creation of the tasks and their dependencies */ taskA = SD_task_create("Task A", NULL, 10.0); taskB = SD_task_create("Task B", NULL, 40.0); taskC = SD_task_create("Task C", NULL, 30.0); taskD = SD_task_create("Task D", NULL, 60.0); /* try to attach and retrieve user data to a task */ SD_task_set_data(taskA, (void*) &computation_amount1); if (computation_amount1 != (*((double*) SD_task_get_data(taskA)))) XBT_ERROR("User data was corrupted by a simple set/get"); SD_task_dependency_add(NULL, NULL, taskB, taskA); SD_task_dependency_add(NULL, NULL, taskC, taskA); SD_task_dependency_add(NULL, NULL, taskD, taskB); SD_task_dependency_add(NULL, NULL, taskD, taskC); /* SD_task_dependency_add(NULL, NULL, taskA, taskD); /\* deadlock */ TRY { SD_task_dependency_add(NULL, NULL, taskA, taskA); /* shouldn't work and must raise an exception */ xbt_die("Hey, I can add a dependency between Task A and Task A!"); } CATCH(ex) { if (ex.category != arg_error) RETHROW; /* this is a serious error */ xbt_ex_free(ex); } TRY { SD_task_dependency_add(NULL, NULL, taskB, taskA); /* shouldn't work and must raise an exception */ xbt_die("Oh oh, I can add an already existing dependency!"); } CATCH(ex) { if (ex.category != arg_error) RETHROW; xbt_ex_free(ex); } TRY { SD_task_dependency_remove(taskA, taskC); /* shouldn't work and must raise an exception */ xbt_die("Dude, I can remove an unknown dependency!"); } CATCH(ex) { if (ex.category != arg_error) RETHROW; xbt_ex_free(ex); } TRY { SD_task_dependency_remove(taskC, taskC); /* shouldn't work and must raise an exception */ xbt_die("Wow, I can remove a dependency between Task C and itself!"); } CATCH(ex) { if (ex.category != arg_error) RETHROW; xbt_ex_free(ex); } /* if everything is ok, no exception is forwarded or rethrown by main() */ /* watch points */ SD_task_watch(taskD, SD_DONE); SD_task_watch(taskB, SD_DONE); SD_task_unwatch(taskD, SD_DONE); /* scheduling parameters */ workstation_list[0] = w1; workstation_list[1] = w2; computation_amount[0] = computation_amount1; computation_amount[1] = computation_amount2; communication_amount[1] = communication_amount12; communication_amount[2] = communication_amount21; /* estimated time */ task = taskD; XBT_INFO("Estimated time for '%s': %f", SD_task_get_name(task), SD_task_get_execution_time(task, workstation_number, workstation_list, computation_amount, communication_amount)); /* let's launch the simulation! */ SD_task_schedule(taskA, workstation_number, workstation_list, computation_amount, communication_amount, rate); SD_task_schedule(taskB, workstation_number, workstation_list, computation_amount, communication_amount, rate); SD_task_schedule(taskC, workstation_number, workstation_list, computation_amount, communication_amount, rate); SD_task_schedule(taskD, workstation_number, workstation_list, computation_amount, communication_amount, rate); changed_tasks = SD_simulate(-1.0); 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)); }