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)
29 const SD_workstation_t *hosts;
33 SD_task_t ParComp_wocomm;
34 SD_task_t IntraRedist;
35 SD_task_t ParComp_wcomm1;
36 SD_task_t InterRedist;
38 SD_task_t ParComp_wcomm2;
39 SD_workstation_t PtoPcomm1_hosts[2];
40 SD_workstation_t PtoPcomm2_hosts[2];
41 double PtoPcomm1_table[] = { 0, 12500000, 0, 0 }; /* 100Mb */
42 double PtoPcomm2_table[] = { 0, 1250000, 0, 0 }; /* 10Mb */
43 double ParComp_wocomm_cost[] = { 1e+9, 1e+9, 1e+9, 1e+9, 1e+9 }; /* 1 Gflop per Proc */
44 double *ParComp_wocomm_table;
45 SD_workstation_t ParComp_wocomm_hosts[5];
46 double *IntraRedist_cost;
47 double *IntraRedist_table;
48 SD_workstation_t IntraRedist_hosts[5];
49 double ParComp_wcomm1_cost[] = { 1e+9, 1e+9, 1e+9, 1e+9, 1e+9 }; /* 1 Gflop per Proc */
50 double *ParComp_wcomm1_table;
51 SD_workstation_t ParComp_wcomm1_hosts[5];
52 double *InterRedist_cost;
53 double *InterRedist_table;
54 double ParComp_wcomm2_cost[] = { 1e+8, 1e+8, 1e+8, 1e+8, 1e+8 }; /* 1 Gflop per Proc (0.02sec duration) */
55 SD_workstation_t ParComp_wcomm2_hosts[5];
56 double final_cost = 5e+9;
57 double *ParComp_wcomm2_table;
59 /* SD initialization */
62 /* creation of the environment */
63 if (strstr(argv[1],".xml"))
64 SD_create_environment(argv[1]);
66 xbt_die("Unsupported platform description style (not XML): %s",
69 /* getting platform infos */
70 n_hosts = SD_workstation_get_number();
71 hosts = SD_workstation_get_list();
73 /* sorting hosts by hostname */
74 qsort((void *) hosts, n_hosts, sizeof(SD_workstation_t),
77 /* creation of the tasks */
78 taskInit = SD_task_create("Initial", NULL, 1.0);
79 PtoPComm1 = SD_task_create("PtoP Comm 1", NULL, 1.0);
80 PtoPComm2 = SD_task_create("PtoP Comm 2", NULL, 1.0);
81 ParComp_wocomm = SD_task_create("Par Comp without comm", NULL, 1.0);
82 IntraRedist = SD_task_create("intra redist", NULL, 1.0);
83 ParComp_wcomm1 = SD_task_create("Par Comp with comm 1", NULL, 1.0);
84 InterRedist = SD_task_create("inter redist", NULL, 1.0);
85 taskFinal = SD_task_create("Final", NULL, 1.0);
86 ParComp_wcomm2 = SD_task_create("Par Comp with comm 2", NULL, 1.0);
89 /* creation of the dependencies */
90 SD_task_dependency_add(NULL, NULL, taskInit, PtoPComm1);
91 SD_task_dependency_add(NULL, NULL, taskInit, PtoPComm2);
92 SD_task_dependency_add(NULL, NULL, PtoPComm1, ParComp_wocomm);
93 SD_task_dependency_add(NULL, NULL, ParComp_wocomm, IntraRedist);
94 SD_task_dependency_add(NULL, NULL, IntraRedist, ParComp_wcomm1);
95 SD_task_dependency_add(NULL, NULL, ParComp_wcomm1, InterRedist);
96 SD_task_dependency_add(NULL, NULL, InterRedist, ParComp_wcomm2);
97 SD_task_dependency_add(NULL, NULL, ParComp_wcomm2, taskFinal);
98 SD_task_dependency_add(NULL, NULL, PtoPComm2, taskFinal);
101 /* scheduling parameters */
103 /* large point-to-point communication (0.1 sec duration) */
104 PtoPcomm1_hosts[0] = hosts[0];
105 PtoPcomm1_hosts[1] = hosts[1];
107 /* small point-to-point communication (0.01 sec duration) */
108 PtoPcomm2_hosts[0] = hosts[0];
109 PtoPcomm2_hosts[1] = hosts[2];
111 /* parallel task without intra communications (1 sec duration) */
112 ParComp_wocomm_table = xbt_new0(double, 25);
114 for (i = 0; i < 5; i++) {
115 ParComp_wocomm_hosts[i] = hosts[i];
118 /* redistribution within a cluster (small latencies) */
119 /* each host send (4*2.5Mb =) 10Mb */
120 /* bandwidth is shared between 5 flows (0.05sec duration) */
121 IntraRedist_cost = xbt_new0(double, 5);
122 IntraRedist_table = xbt_new0(double, 25);
123 for (i = 0; i < 5; i++) {
124 for (j = 0; j < 5; j++) {
126 IntraRedist_table[i * 5 + j] = 0.;
128 IntraRedist_table[i * 5 + j] = 312500.; /* 2.5Mb */
132 for (i = 0; i < 5; i++) {
133 IntraRedist_hosts[i] = hosts[i];
136 /* parallel task with intra communications */
137 /* Computation domination (1 sec duration) */
138 ParComp_wcomm1_table = xbt_new0(double, 25);
140 for (i = 0; i < 5; i++) {
141 ParComp_wcomm1_hosts[i] = hosts[i];
144 for (i = 0; i < 5; i++) {
145 for (j = 0; j < 5; j++) {
147 ParComp_wcomm1_table[i * 5 + j] = 0.;
149 ParComp_wcomm1_table[i * 5 + j] = 312500.; /* 2.5Mb */
153 /* inter cluster redistribution (big latency on the backbone) */
154 /* (0.5sec duration without latency impact) */
155 InterRedist_cost = xbt_new0(double, 10);
156 InterRedist_table = xbt_new0(double, 100);
157 for (i = 0; i < 5; i++) {
158 InterRedist_table[i * 10 + i + 5] = 1250000.; /* 10Mb */
161 /* parallel task with intra communications */
162 /* Communication domination (0.1 sec duration) */
164 ParComp_wcomm2_table = xbt_new0(double, 25);
166 for (i = 0; i < 5; i++) {
167 ParComp_wcomm2_hosts[i] = hosts[i + 5];
170 for (i = 0; i < 5; i++) {
171 for (j = 0; j < 5; j++) {
173 ParComp_wcomm2_table[i * 5 + j] = 0.;
175 ParComp_wcomm2_table[i * 5 + j] = 625000.; /* 5Mb */
179 /* Sequential task */
182 /* scheduling the tasks */
183 SD_task_schedule(taskInit, 1, hosts, SD_SCHED_NO_COST, SD_SCHED_NO_COST,
185 SD_task_schedule(PtoPComm1, 2, PtoPcomm1_hosts, SD_SCHED_NO_COST,
186 PtoPcomm1_table, -1.0);
187 SD_task_schedule(PtoPComm2, 2, PtoPcomm2_hosts, SD_SCHED_NO_COST,
188 PtoPcomm2_table, -1.0);
189 SD_task_schedule(ParComp_wocomm, 5, ParComp_wocomm_hosts,
190 ParComp_wocomm_cost, ParComp_wocomm_table, -1.0);
191 SD_task_schedule(IntraRedist, 5, IntraRedist_hosts, IntraRedist_cost,
192 IntraRedist_table, -1.0);
193 SD_task_schedule(ParComp_wcomm1, 5, ParComp_wcomm1_hosts,
194 ParComp_wcomm1_cost, ParComp_wcomm1_table, -1.0);
195 SD_task_schedule(InterRedist, 10, hosts, InterRedist_cost,
196 InterRedist_table, -1.0);
197 SD_task_schedule(ParComp_wcomm2, 5, ParComp_wcomm2_hosts,
198 ParComp_wcomm2_cost, ParComp_wcomm2_table, -1.0);
199 SD_task_schedule(taskFinal, 1, &(hosts[9]), &final_cost,
200 SD_SCHED_NO_COST, -1.0);
202 /* let's launch the simulation! */
205 XBT_INFO("Simulation time: %f", SD_get_clock());
208 free(ParComp_wocomm_table);
209 free(IntraRedist_cost);
210 free(IntraRedist_table);
211 free(ParComp_wcomm1_table);
212 free(InterRedist_cost);
213 free(InterRedist_table);
214 free(ParComp_wcomm2_table);
216 SD_task_destroy(taskInit);
217 SD_task_destroy(PtoPComm1);
218 SD_task_destroy(PtoPComm2);
219 SD_task_destroy(ParComp_wocomm);
220 SD_task_destroy(IntraRedist);
221 SD_task_destroy(ParComp_wcomm1);
222 SD_task_destroy(InterRedist);
223 SD_task_destroy(ParComp_wcomm2);
224 SD_task_destroy(taskFinal);