+++ /dev/null
-/* saturate - link saturation demo of AMOK features */
-
-/* Copyright (c) 2005, 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 <stdio.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <time.h>
-
-#include "xbt/peer.h"
-#include "gras.h"
-#include "amok/bandwidth.h"
-#include "amok/peermanagement.h"
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(saturate,
- "Messages specific to this example");
-
-/* **********************************************************************
- * Sensor code
- * **********************************************************************/
-
-/* Function prototypes */
-int sensor(int argc, char *argv[]);
-
-int sensor(int argc, char *argv[])
-{
- xbt_socket_t mysock;
- xbt_socket_t master;
-
- gras_init(&argc, argv);
- amok_bw_init();
- amok_pm_init();
-
- mysock = gras_socket_server_range(3000, 9999, 0, 0);
- XBT_INFO("Sensor starting (on port %d)", gras_os_myport());
- gras_os_sleep(2); /* let the master get ready */
- master = gras_socket_client_from_string(argv[1]);
-
- amok_pm_group_join(master, "saturate");
- amok_pm_mainloop(600);
-
- gras_socket_close(mysock);
- gras_socket_close(master);
- gras_exit();
- return 0;
-}
-
-/* **********************************************************************
- * Maestro code
- * **********************************************************************/
-
-/* Function prototypes */
-int maestro(int argc, char *argv[]);
-
-/* XP setups */
-const int buf_size = 0;
-const int msg_size = 50 * 1024;
-const int msg_amount = 2;
-const int sat_size = 1024 * 1024 * 10;
-const double min_duration = 1;
-
-static double XP(const char *bw1, const char *bw2,
- const char *sat1, const char *sat2)
-{
-
- double sec, bw, sec_sat, bw_sat;
-
- gras_os_sleep(5.0); /* wait for the sensors to show up */
- /* Test BW without saturation */
- amok_bw_request(bw1, 4000, bw2, 4000,
- buf_size, msg_size, msg_amount, min_duration, &sec, &bw);
- XBT_INFO("BW(%s,%s) => %f sec, achieving %f Mb/s",
- bw1, bw2, sec, (bw / 1024.0 / 1024.0));
-
-
- /* Test BW with saturation */
- amok_bw_saturate_start(sat1, 4000, sat2, 4000, sat_size, 60);
- gras_os_sleep(1.0); /* let it start */
-
- amok_bw_request(bw1, 4000, bw2, 4000,
- buf_size, msg_size, msg_amount, min_duration, &sec_sat,
- &bw_sat);
- XBT_INFO("BW(%s,%s//%s,%s) => %f sec, achieving %f Mb/s", bw1, bw2, sat1,
- sat2, sec, bw / 1024.0 / 1024.0);
-
- amok_bw_saturate_stop(sat1, 4000, NULL, NULL);
-
- if (bw_sat / bw < 0.7) {
- XBT_INFO("THERE IS SOME INTERFERENCE !!!");
- }
- if (bw / bw_sat < 0.7) {
- XBT_INFO("THERE IS SOME INTERFERENCE (and I'm an idiot) !!!");
- }
- return bw_sat / bw;
-}
-
-static void kill_buddy(char *name, int port)
-{
- xbt_socket_t sock = gras_socket_client(name, port);
- gras_msg_send(sock, "kill", NULL);
- gras_socket_close(sock);
-}
-
-static void kill_buddy_dynar(void *b)
-{
- xbt_peer_t buddy = *(xbt_peer_t *) b;
- kill_buddy(buddy->name, buddy->port);
-}
-
-static void free_peer(void *d)
-{
- xbt_peer_t h = *(xbt_peer_t *) d;
- free(h->name);
- free(h);
-}
-
-static void simple_saturation(int argc, char *argv[])
-{
- xbt_ex_t e;
-
- /* where are the sensors */
- xbt_dynar_t peers;
- xbt_peer_t h1, h2;
- /* results */
- double duration, bw;
-
- /* Init the group */
- peers = amok_pm_group_new("saturate");
- /* wait for dudes */
- gras_msg_handleall(5);
-
- /* Stop all sensors but two of them */
- while (xbt_dynar_length(peers) > 2) {
- xbt_dynar_pop(peers, &h1);
- amok_pm_kill_hp(h1->name, h1->port);
- xbt_peer_free(h1);
- }
-
- /* get 2 friends */
- xbt_dynar_get_cpy(peers, 0, &h1);
- xbt_dynar_get_cpy(peers, 1, &h2);
-
- /* Start saturation */
- XBT_INFO("Start saturation between %s:%d and %s:%d",
- h1->name, h1->port, h2->name, h2->port);
-
- amok_bw_saturate_start(h1->name, h1->port, h2->name, h2->port, 0, /* Be a nice boy, compute msg_size yourself */
- 30 /* 5 sec timeout */ );
-
- /* Stop it after a while */
- XBT_INFO("Have a rest");
- gras_os_sleep(1);
- TRY {
- XBT_INFO("Stop the saturation");
- amok_bw_saturate_stop(h1->name, h1->port, &duration, &bw);
- }
- CATCH(e) {
- XBT_INFO("Ooops, stoping the saturation raised an exception");
- xbt_ex_free(e);
- }
- XBT_INFO("Saturation took %.2fsec, achieving %fb/s", duration, bw);
-
- /* Game is over, friends */
- amok_pm_group_shutdown("saturate");
-}
-
-/********************************************************************************************/
-static void full_fledged_saturation(int argc, char *argv[])
-{
- double time1 = 5.0, bw1 = 5.0; // 0.5 for test
- /* timers */
- double begin_simulated;
- int begin;
-
- /* where are the sensors */
- xbt_dynar_t peers;
- int nb_peers;
-
- /* results */
- double *bw;
- double *bw_sat;
-
- /* iterators */
- unsigned int i, j, k, l;
- xbt_peer_t h1, h2, h3, h4;
-
- /* Init the group */
- peers = amok_pm_group_new("saturate");
- /* wait 4 dudes */
- gras_msg_handle(60);
- gras_msg_handle(60);
- gras_msg_handle(60);
- gras_msg_handle(60);
- nb_peers = xbt_dynar_length(peers);
-
- XBT_INFO("Let's go for the bw_matrix");
-
- /* Do the test without saturation */
- begin = time(NULL);
- begin_simulated = gras_os_time();
-
- bw = amok_bw_matrix(peers, buf_size, msg_size, msg_amount, min_duration);
-
- XBT_INFO("Did all BW tests in %ld sec (%.2f simulated(?) sec)",
- (long int) (time(NULL) - begin), gras_os_time() - begin_simulated);
-
- /* Do the test with saturation */
- bw_sat = xbt_new(double, nb_peers * nb_peers);
- xbt_dynar_foreach(peers, i, h1) {
- xbt_dynar_foreach(peers, j, h2) {
- if (i == j)
- continue;
-
- TRY {
- amok_bw_saturate_start(h1->name, h1->port, h2->name, h2->port, 0, /* Be nice, compute msg_size yourself */
- 0 /* no timeout */ );
- }
- CATCH_ANONYMOUS {
- RETHROWF("Cannot ask peers to saturate the link: %s");
- }
- gras_os_sleep(5);
-
- begin = time(NULL);
- begin_simulated = gras_os_time();
- xbt_dynar_foreach(peers, k, h3) {
- if (i == k || j == k)
- continue;
-
- xbt_dynar_foreach(peers, l, h4) {
- double ratio;
- if (i == l || j == l || k == l)
- continue;
-
- XBT_VERB("TEST %s %s // %s %s",
- h1->name, h2->name, h3->name, h4->name);
- amok_bw_request(h3->name, h3->port, h4->name, h4->port,
- buf_size, msg_size, msg_amount, min_duration,
- NULL, &(bw_sat[k * nb_peers + l]));
-
- ratio = bw_sat[k * nb_peers + l] / bw[k * nb_peers + l];
- XBT_INFO("SATURATED BW XP(%s %s // %s %s) => %f (%f vs %f)%s",
- h1->name, h2->name, h3->name, h4->name,
- ratio,
- bw[k * nb_peers + l], bw_sat[k * nb_peers + l],
- ratio < 0.7 ? " THERE IS SOME INTERFERENCE !!!" : "");
- }
- }
- amok_bw_saturate_stop(h1->name, h1->port, &time1, &bw1);
-
- XBT_INFO
- ("Did an iteration on saturation pair in %ld sec (%.2f simulated sec)",
- (long int) (time(NULL) - begin),
- gras_os_time() - begin_simulated);
- XBT_INFO
- ("the duration of the experiment >>>>> %.3f sec (%.3f bandwidth)",
- time1, bw1);
- }
- }
- free(bw_sat);
- free(bw);
- /* Game is over, friends */
- amok_pm_group_shutdown("saturate");
-}
-
-
-int maestro(int argc, char *argv[])
-{
-
- gras_init(&argc, argv);
- amok_bw_init();
- amok_pm_init();
-
- gras_socket_server(atoi(argv[1]));
-
- simple_saturation(argc, argv);
- //full_fledged_saturation(argc, argv);
-
- gras_exit();
- return 0;
-
-}
