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(sg_host_get_name(*((sg_host_t *) n1)),
22 sg_host_get_name(*((sg_host_t *) n2)));
25 int main(int argc, char **argv)
29 const sg_host_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 sg_host_t PtoPcomm1_hosts[2];
40 sg_host_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 sg_host_t ParComp_wocomm_hosts[5];
46 double *IntraRedist_cost;
47 double *IntraRedist_table;
48 sg_host_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 sg_host_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 sg_host_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 xbt_assert(strstr(argv[1],".xml"),
64 "Unsupported platform description style (not XML): %s",
66 SD_create_environment(argv[1]);
68 /* getting platform infos */
69 n_hosts = sg_host_count();
70 hosts = sg_host_list();
72 /* sorting hosts by hostname */
73 qsort((void *) hosts, n_hosts, sizeof(sg_host_t),
76 /* creation of the tasks */
77 taskInit = SD_task_create("Initial", NULL, 1.0);
78 PtoPComm1 = SD_task_create("PtoP Comm 1", NULL, 1.0);
79 PtoPComm2 = SD_task_create("PtoP Comm 2", NULL, 1.0);
80 ParComp_wocomm = SD_task_create("Par Comp without comm", NULL, 1.0);
81 IntraRedist = SD_task_create("intra redist", NULL, 1.0);
82 ParComp_wcomm1 = SD_task_create("Par Comp with comm 1", NULL, 1.0);
83 InterRedist = SD_task_create("inter redist", NULL, 1.0);
84 taskFinal = SD_task_create("Final", NULL, 1.0);
85 ParComp_wcomm2 = SD_task_create("Par Comp with comm 2", NULL, 1.0);
88 /* creation of the dependencies */
89 SD_task_dependency_add(NULL, NULL, taskInit, PtoPComm1);
90 SD_task_dependency_add(NULL, NULL, taskInit, PtoPComm2);
91 SD_task_dependency_add(NULL, NULL, PtoPComm1, ParComp_wocomm);
92 SD_task_dependency_add(NULL, NULL, ParComp_wocomm, IntraRedist);
93 SD_task_dependency_add(NULL, NULL, IntraRedist, ParComp_wcomm1);
94 SD_task_dependency_add(NULL, NULL, ParComp_wcomm1, InterRedist);
95 SD_task_dependency_add(NULL, NULL, InterRedist, ParComp_wcomm2);
96 SD_task_dependency_add(NULL, NULL, ParComp_wcomm2, taskFinal);
97 SD_task_dependency_add(NULL, NULL, PtoPComm2, taskFinal);
100 /* scheduling parameters */
102 /* large point-to-point communication (0.1 sec duration) */
103 PtoPcomm1_hosts[0] = hosts[0];
104 PtoPcomm1_hosts[1] = hosts[1];
106 /* small point-to-point communication (0.01 sec duration) */
107 PtoPcomm2_hosts[0] = hosts[0];
108 PtoPcomm2_hosts[1] = hosts[2];
110 /* parallel task without intra communications (1 sec duration) */
111 ParComp_wocomm_table = xbt_new0(double, 25);
113 for (i = 0; i < 5; i++) {
114 ParComp_wocomm_hosts[i] = hosts[i];
117 /* redistribution within a cluster (small latencies) */
118 /* each host send (4*2.5Mb =) 10Mb */
119 /* bandwidth is shared between 5 flows (0.05sec duration) */
120 IntraRedist_cost = xbt_new0(double, 5);
121 IntraRedist_table = xbt_new0(double, 25);
122 for (i = 0; i < 5; i++) {
123 for (j = 0; j < 5; j++) {
125 IntraRedist_table[i * 5 + j] = 0.;
127 IntraRedist_table[i * 5 + j] = 312500.; /* 2.5Mb */
131 for (i = 0; i < 5; i++) {
132 IntraRedist_hosts[i] = hosts[i];
135 /* parallel task with intra communications */
136 /* Computation domination (1 sec duration) */
137 ParComp_wcomm1_table = xbt_new0(double, 25);
139 for (i = 0; i < 5; i++) {
140 ParComp_wcomm1_hosts[i] = hosts[i];
143 for (i = 0; i < 5; i++) {
144 for (j = 0; j < 5; j++) {
146 ParComp_wcomm1_table[i * 5 + j] = 0.;
148 ParComp_wcomm1_table[i * 5 + j] = 312500.; /* 2.5Mb */
152 /* inter cluster redistribution (big latency on the backbone) */
153 /* (0.5sec duration without latency impact) */
154 InterRedist_cost = xbt_new0(double, 10);
155 InterRedist_table = xbt_new0(double, 100);
156 for (i = 0; i < 5; i++) {
157 InterRedist_table[i * 10 + i + 5] = 1250000.; /* 10Mb */
160 /* parallel task with intra communications */
161 /* Communication domination (0.1 sec duration) */
163 ParComp_wcomm2_table = xbt_new0(double, 25);
165 for (i = 0; i < 5; i++) {
166 ParComp_wcomm2_hosts[i] = hosts[i + 5];
169 for (i = 0; i < 5; i++) {
170 for (j = 0; j < 5; j++) {
172 ParComp_wcomm2_table[i * 5 + j] = 0.;
174 ParComp_wcomm2_table[i * 5 + j] = 625000.; /* 5Mb */
178 /* Sequential task */
181 /* scheduling the tasks */
182 SD_task_schedule(taskInit, 1, hosts, SD_SCHED_NO_COST, SD_SCHED_NO_COST,
184 SD_task_schedule(PtoPComm1, 2, PtoPcomm1_hosts, SD_SCHED_NO_COST,
185 PtoPcomm1_table, -1.0);
186 SD_task_schedule(PtoPComm2, 2, PtoPcomm2_hosts, SD_SCHED_NO_COST,
187 PtoPcomm2_table, -1.0);
188 SD_task_schedule(ParComp_wocomm, 5, ParComp_wocomm_hosts,
189 ParComp_wocomm_cost, ParComp_wocomm_table, -1.0);
190 SD_task_schedule(IntraRedist, 5, IntraRedist_hosts, IntraRedist_cost,
191 IntraRedist_table, -1.0);
192 SD_task_schedule(ParComp_wcomm1, 5, ParComp_wcomm1_hosts,
193 ParComp_wcomm1_cost, ParComp_wcomm1_table, -1.0);
194 SD_task_schedule(InterRedist, 10, hosts, InterRedist_cost,
195 InterRedist_table, -1.0);
196 SD_task_schedule(ParComp_wcomm2, 5, ParComp_wcomm2_hosts,
197 ParComp_wcomm2_cost, ParComp_wcomm2_table, -1.0);
198 SD_task_schedule(taskFinal, 1, &(hosts[9]), &final_cost,
199 SD_SCHED_NO_COST, -1.0);
201 /* let's launch the simulation! */
204 XBT_INFO("Simulation time: %f", SD_get_clock());
207 free(ParComp_wocomm_table);
208 free(IntraRedist_cost);
209 free(IntraRedist_table);
210 free(ParComp_wcomm1_table);
211 free(InterRedist_cost);
212 free(InterRedist_table);
213 free(ParComp_wcomm2_table);
215 SD_task_destroy(taskInit);
216 SD_task_destroy(PtoPComm1);
217 SD_task_destroy(PtoPComm2);
218 SD_task_destroy(ParComp_wocomm);
219 SD_task_destroy(IntraRedist);
220 SD_task_destroy(ParComp_wcomm1);
221 SD_task_destroy(InterRedist);
222 SD_task_destroy(ParComp_wcomm2);
223 SD_task_destroy(taskFinal);