1 /* Copyright (c) 2007-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include "simgrid/simdag.h"
14 #include "xbt/sysdep.h" /* calloc, printf */
16 XBT_LOG_NEW_DEFAULT_CATEGORY(sd_test,
17 "Logging specific to this SimDag example");
19 static int nameCompareHosts(const void *n1, const void *n2)
21 return strcmp(SD_workstation_get_name(*((SD_workstation_t *) n1)),
22 SD_workstation_get_name(*((SD_workstation_t *) n2)));
25 int main(int argc, char **argv)
28 xbt_dynar_t changed_tasks;
30 const SD_workstation_t *hosts;
34 SD_task_t ParComp_wocomm;
35 SD_task_t IntraRedist;
36 SD_task_t ParComp_wcomm1;
37 SD_task_t InterRedist;
39 SD_task_t ParComp_wcomm2;
40 SD_workstation_t PtoPcomm1_hosts[2];
41 SD_workstation_t PtoPcomm2_hosts[2];
42 double PtoPcomm1_table[] = { 0, 12500000, 0, 0 }; /* 100Mb */
43 double PtoPcomm2_table[] = { 0, 1250000, 0, 0 }; /* 10Mb */
44 double ParComp_wocomm_cost[] = { 1e+9, 1e+9, 1e+9, 1e+9, 1e+9 }; /* 1 Gflop per Proc */
45 double *ParComp_wocomm_table;
46 SD_workstation_t ParComp_wocomm_hosts[5];
47 double *IntraRedist_cost;
48 double *IntraRedist_table;
49 SD_workstation_t IntraRedist_hosts[5];
50 double ParComp_wcomm1_cost[] = { 1e+9, 1e+9, 1e+9, 1e+9, 1e+9 }; /* 1 Gflop per Proc */
51 double *ParComp_wcomm1_table;
52 SD_workstation_t ParComp_wcomm1_hosts[5];
53 double *InterRedist_cost;
54 double *InterRedist_table;
55 double ParComp_wcomm2_cost[] = { 1e+8, 1e+8, 1e+8, 1e+8, 1e+8 }; /* 1 Gflop per Proc (0.02sec duration) */
56 SD_workstation_t ParComp_wcomm2_hosts[5];
57 double final_cost = 5e+9;
58 double *ParComp_wcomm2_table;
60 /* initialisation of SD */
63 /* creation of the environment */
64 if (strstr(argv[1],".xml"))
65 SD_create_environment(argv[1]);
67 xbt_die("Unsupported platform description style (not XML): %s",
70 /* getting platform infos */
71 n_hosts = SD_workstation_get_number();
72 hosts = SD_workstation_get_list();
74 /* sorting hosts by hostname */
75 qsort((void *) hosts, n_hosts, sizeof(SD_workstation_t),
78 /* creation of the tasks */
79 taskInit = SD_task_create("Initial", NULL, 1.0);
80 PtoPComm1 = SD_task_create("PtoP Comm 1", NULL, 1.0);
81 PtoPComm2 = SD_task_create("PtoP Comm 2", NULL, 1.0);
82 ParComp_wocomm = SD_task_create("Par Comp without comm", NULL, 1.0);
83 IntraRedist = SD_task_create("intra redist", NULL, 1.0);
84 ParComp_wcomm1 = SD_task_create("Par Comp with comm 1", NULL, 1.0);
85 InterRedist = SD_task_create("inter redist", NULL, 1.0);
86 taskFinal = SD_task_create("Final", NULL, 1.0);
87 ParComp_wcomm2 = SD_task_create("Par Comp with comm 2", NULL, 1.0);
90 /* creation of the dependencies */
91 SD_task_dependency_add(NULL, NULL, taskInit, PtoPComm1);
92 SD_task_dependency_add(NULL, NULL, taskInit, PtoPComm2);
93 SD_task_dependency_add(NULL, NULL, PtoPComm1, ParComp_wocomm);
94 SD_task_dependency_add(NULL, NULL, ParComp_wocomm, IntraRedist);
95 SD_task_dependency_add(NULL, NULL, IntraRedist, ParComp_wcomm1);
96 SD_task_dependency_add(NULL, NULL, ParComp_wcomm1, InterRedist);
97 SD_task_dependency_add(NULL, NULL, InterRedist, ParComp_wcomm2);
98 SD_task_dependency_add(NULL, NULL, ParComp_wcomm2, taskFinal);
99 SD_task_dependency_add(NULL, NULL, PtoPComm2, taskFinal);
102 /* scheduling parameters */
104 /* large point-to-point communication (0.1 sec duration) */
105 PtoPcomm1_hosts[0] = hosts[0];
106 PtoPcomm1_hosts[1] = hosts[1];
108 /* small point-to-point communication (0.01 sec duration) */
109 PtoPcomm2_hosts[0] = hosts[0];
110 PtoPcomm2_hosts[1] = hosts[2];
112 /* parallel task without intra communications (1 sec duration) */
113 ParComp_wocomm_table = xbt_new0(double, 25);
115 for (i = 0; i < 5; i++) {
116 ParComp_wocomm_hosts[i] = hosts[i];
119 /* redistribution within a cluster (small latencies) */
120 /* each host send (4*2.5Mb =) 10Mb */
121 /* bandwidth is shared between 5 flows (0.05sec duration) */
122 IntraRedist_cost = xbt_new0(double, 5);
123 IntraRedist_table = xbt_new0(double, 25);
124 for (i = 0; i < 5; i++) {
125 for (j = 0; j < 5; j++) {
127 IntraRedist_table[i * 5 + j] = 0.;
129 IntraRedist_table[i * 5 + j] = 312500.; /* 2.5Mb */
133 for (i = 0; i < 5; i++) {
134 IntraRedist_hosts[i] = hosts[i];
137 /* parallel task with intra communications */
138 /* Computation domination (1 sec duration) */
139 ParComp_wcomm1_table = xbt_new0(double, 25);
141 for (i = 0; i < 5; i++) {
142 ParComp_wcomm1_hosts[i] = hosts[i];
145 for (i = 0; i < 5; i++) {
146 for (j = 0; j < 5; j++) {
148 ParComp_wcomm1_table[i * 5 + j] = 0.;
150 ParComp_wcomm1_table[i * 5 + j] = 312500.; /* 2.5Mb */
154 /* inter cluster redistribution (big latency on the backbone) */
155 /* (0.5sec duration without latency impact) */
156 InterRedist_cost = xbt_new0(double, 10);
157 InterRedist_table = xbt_new0(double, 100);
158 for (i = 0; i < 5; i++) {
159 InterRedist_table[i * 10 + i + 5] = 1250000.; /* 10Mb */
162 /* parallel task with intra communications */
163 /* Communication domination (0.1 sec duration) */
165 ParComp_wcomm2_table = xbt_new0(double, 25);
167 for (i = 0; i < 5; i++) {
168 ParComp_wcomm2_hosts[i] = hosts[i + 5];
171 for (i = 0; i < 5; i++) {
172 for (j = 0; j < 5; j++) {
174 ParComp_wcomm2_table[i * 5 + j] = 0.;
176 ParComp_wcomm2_table[i * 5 + j] = 625000.; /* 5Mb */
180 /* Sequential task */
183 /* scheduling the tasks */
184 SD_task_schedule(taskInit, 1, hosts, SD_SCHED_NO_COST, SD_SCHED_NO_COST,
186 SD_task_schedule(PtoPComm1, 2, PtoPcomm1_hosts, SD_SCHED_NO_COST,
187 PtoPcomm1_table, -1.0);
188 SD_task_schedule(PtoPComm2, 2, PtoPcomm2_hosts, SD_SCHED_NO_COST,
189 PtoPcomm2_table, -1.0);
190 SD_task_schedule(ParComp_wocomm, 5, ParComp_wocomm_hosts,
191 ParComp_wocomm_cost, ParComp_wocomm_table, -1.0);
192 SD_task_schedule(IntraRedist, 5, IntraRedist_hosts, IntraRedist_cost,
193 IntraRedist_table, -1.0);
194 SD_task_schedule(ParComp_wcomm1, 5, ParComp_wcomm1_hosts,
195 ParComp_wcomm1_cost, ParComp_wcomm1_table, -1.0);
196 SD_task_schedule(InterRedist, 10, hosts, InterRedist_cost,
197 InterRedist_table, -1.0);
198 SD_task_schedule(ParComp_wcomm2, 5, ParComp_wcomm2_hosts,
199 ParComp_wcomm2_cost, ParComp_wcomm2_table, -1.0);
200 SD_task_schedule(taskFinal, 1, &(hosts[9]), &final_cost,
201 SD_SCHED_NO_COST, -1.0);
203 /* let's launch the simulation! */
204 changed_tasks = SD_simulate(-1.0);
206 XBT_INFO("Simulation time: %f", SD_get_clock());
208 xbt_dynar_free_container(&changed_tasks);
210 free(ParComp_wocomm_table);
211 free(IntraRedist_cost);
212 free(IntraRedist_table);
213 free(ParComp_wcomm1_table);
214 free(InterRedist_cost);
215 free(InterRedist_table);
216 free(ParComp_wcomm2_table);
218 SD_task_destroy(taskInit);
219 SD_task_destroy(PtoPComm1);
220 SD_task_destroy(PtoPComm2);
221 SD_task_destroy(ParComp_wocomm);
222 SD_task_destroy(IntraRedist);
223 SD_task_destroy(ParComp_wcomm1);
224 SD_task_destroy(InterRedist);
225 SD_task_destroy(ParComp_wcomm2);
226 SD_task_destroy(taskFinal);