1 /* pmm - parallel matrix multiplication "double diffusion" */
3 /* Copyright (c) 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include "xbt/matrix.h"
11 #include "amok/peermanagement.h"
13 #define PROC_MATRIX_SIZE 3
14 #define NEIGHBOR_COUNT PROC_MATRIX_SIZE - 1
15 #define SLAVE_COUNT (PROC_MATRIX_SIZE*PROC_MATRIX_SIZE)
17 #define DATA_MATRIX_SIZE 18
18 const int submatrix_size = DATA_MATRIX_SIZE / PROC_MATRIX_SIZE;
20 XBT_LOG_NEW_DEFAULT_CATEGORY(pmm, "Parallel Matrix Multiplication");
22 /* struct for recovering results */
23 GRAS_DEFINE_TYPE(s_result, struct s_result {
25 int rowpos; xbt_matrix_t C GRAS_ANNOTE(subtype, double);});
27 typedef struct s_result result_t;
29 /* struct to send initial data to slave */
30 GRAS_DEFINE_TYPE(s_pmm_assignment, struct s_pmm_assignment {
33 xbt_peer_t line[NEIGHBOR_COUNT];
34 xbt_peer_t row[NEIGHBOR_COUNT];
35 xbt_matrix_t A GRAS_ANNOTE(subtype, double);
36 xbt_matrix_t B GRAS_ANNOTE(subtype, double);});
38 typedef struct s_pmm_assignment s_pmm_assignment_t;
40 /* register messages which may be sent (common to client and server) */
41 static void register_messages(void)
43 gras_datadesc_type_t result_type;
44 gras_datadesc_type_t pmm_assignment_type;
46 gras_datadesc_set_const("NEIGHBOR_COUNT", NEIGHBOR_COUNT);
47 result_type = gras_datadesc_by_symbol(s_result);
48 pmm_assignment_type = gras_datadesc_by_symbol(s_pmm_assignment);
50 /* receive a final result from slave */
51 gras_msgtype_declare("result", result_type);
53 /* send from master to slave to assign a position and some data */
54 gras_msgtype_declare("pmm_slave", pmm_assignment_type);
56 /* send data between slaves */
57 gras_msgtype_declare("dataA",
58 gras_datadesc_matrix(gras_datadesc_by_name("double"),
60 gras_msgtype_declare("dataB",
61 gras_datadesc_matrix(gras_datadesc_by_name("double"),
64 /* synchronization message */
65 gras_msgtype_declare("pmm_sync", 0);
68 /* Function prototypes */
69 int slave(int argc, char *argv[]);
70 int master(int argc, char *argv[]);
73 /* **********************************************************************
75 * **********************************************************************/
77 /* Global private data */
79 int nbr_row, nbr_line;
84 int master(int argc, char *argv[])
94 xbt_dynar_t peers; /* group of slaves */
95 xbt_peer_t grid[SLAVE_COUNT]; /* The slaves as an array */
96 gras_socket_t socket[SLAVE_COUNT]; /* sockets for brodcast to slaves */
98 /* Init the GRAS's infrastructure */
99 gras_init(&argc, argv);
103 /* Initialize data matrices */
104 A = xbt_matrix_double_new_id(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
105 B = xbt_matrix_double_new_seq(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
106 C = xbt_matrix_double_new_zeros(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
108 /* Create the connexions */
109 xbt_assert0(argc > 1, "Usage: master <port>");
110 gras_socket_server(atoi(argv[1]));
111 peers = amok_pm_group_new("pmm");
113 /* friends, we're ready. Come and play */
114 INFO0("Wait for peers for 2 sec");
115 gras_msg_handleall(2);
116 while (xbt_dynar_length(peers)<9) {
117 INFO1("Got only %ld pals. Wait 2 more seconds", xbt_dynar_length(peers));
118 gras_msg_handleall(2);
120 INFO1("Good. Got %ld pals", xbt_dynar_length(peers));
122 for (i = 0; i < xbt_dynar_length(peers) && i < SLAVE_COUNT; i++) {
123 xbt_dynar_get_cpy(peers, i, &grid[i]);
124 socket[i] = gras_socket_client(grid[i]->name, grid[i]->port);
126 xbt_assert2(i == SLAVE_COUNT,
127 "Not enough slaves for this setting (got %d of %d). Change the deployment file",
130 /* Kill surnumerous slaves */
131 for (i = SLAVE_COUNT; i < xbt_dynar_length(peers);) {
134 xbt_dynar_remove_at(peers, i, &h);
135 INFO2("Too much slaves. Killing %s:%d", h->name, h->port);
136 amok_pm_kill_hp(h->name, h->port);
141 /* Assign job to slaves */
142 int row = 0, line = 0;
143 INFO0("XXXXXXXXXXXXXXXXXXXXXX begin Multiplication");
144 for (i = 0; i < SLAVE_COUNT; i++) {
145 s_pmm_assignment_t assignment;
148 assignment.linepos = line; // assigned line
149 assignment.rowpos = row; // assigned row
152 for (j = 0, k = 0; j < PROC_MATRIX_SIZE; j++) {
153 if (i != j * PROC_MATRIX_SIZE + (row)) {
154 assignment.row[k] = grid[j * PROC_MATRIX_SIZE + (row)];
158 for (j = 0, k = 0; j < PROC_MATRIX_SIZE; j++) {
159 if (i != (line) * PROC_MATRIX_SIZE + j) {
160 assignment.line[k] = grid[(line) * PROC_MATRIX_SIZE + j];
165 assignment.A = xbt_matrix_new_sub(A,
166 submatrix_size, submatrix_size,
167 submatrix_size * line,
168 submatrix_size * row, NULL);
170 xbt_matrix_new_sub(B, submatrix_size, submatrix_size,
171 submatrix_size * line, submatrix_size * row, NULL);
173 if (row >= PROC_MATRIX_SIZE) {
178 gras_msg_send(socket[i], "pmm_slave", &assignment);
179 xbt_matrix_free(assignment.A);
180 xbt_matrix_free(assignment.B);
183 /* synchronize slaves */
184 for (i = 0 ; i < PROC_MATRIX_SIZE ; i++) {
186 for (j = 0 ; j < SLAVE_COUNT ; j++)
187 gras_msg_wait(600, "pmm_sync", NULL, NULL);
188 for (j = 0 ; j < SLAVE_COUNT ; j++)
189 gras_msg_send(socket[j], "pmm_sync", NULL);
192 /* Retrieve the results */
193 for (i = 0; i < SLAVE_COUNT; i++) {
194 gras_msg_wait(6000, "result", &from, &result);
195 VERB2("%d slaves are done already. Waiting for %d", i + 1, SLAVE_COUNT);
196 xbt_matrix_copy_values(C, result.C, submatrix_size, submatrix_size,
197 submatrix_size * result.linepos,
198 submatrix_size * result.rowpos, 0, 0, NULL);
199 xbt_matrix_free(result.C);
203 if (xbt_matrix_double_is_seq(C))
204 INFO0("XXXXXXXXXXXXXXXXXXXXXX Ok, the result matches expectations");
206 WARN0("the result seems wrong");
207 if (DATA_MATRIX_SIZE < 30) {
208 INFO0("The Result of Multiplication is :");
209 xbt_matrix_dump(C, "C:res", 0, xbt_matrix_dump_display_double);
211 INFO1("Matrix size too big (%d>30) to be displayed here",
216 amok_pm_group_shutdown("pmm"); /* Ok, we're out of here */
218 for (i = 0; i < SLAVE_COUNT; i++)
219 gras_socket_close(socket[i]);
226 } /* end_of_master */
228 /* **********************************************************************
230 * **********************************************************************/
232 static int pmm_worker_cb(gras_msg_cb_ctx_t ctx, void *payload)
234 /* Recover my initialized Data and My Position */
235 s_pmm_assignment_t assignment = *(s_pmm_assignment_t *) payload;
236 gras_socket_t master = gras_msg_cb_ctx_from(ctx);
241 xbt_matrix_t bA = xbt_matrix_new(submatrix_size, submatrix_size,
242 sizeof(double), NULL);
243 xbt_matrix_t bB = xbt_matrix_new(submatrix_size, submatrix_size,
244 sizeof(double), NULL);
247 xbt_matrix_t mydataA, mydataB;
249 xbt_matrix_double_new_zeros(submatrix_size, submatrix_size);
253 gras_socket_t from; /* to exchange data with my neighbor */
255 /* sockets for brodcast to other slave */
256 gras_socket_t socket_line[PROC_MATRIX_SIZE - 1];
257 gras_socket_t socket_row[PROC_MATRIX_SIZE - 1];
258 memset(socket_line, 0, sizeof(socket_line));
259 memset(socket_row, 0, sizeof(socket_row));
263 gras_os_sleep(1); /* wait for my pals */
265 myline = assignment.linepos;
266 myrow = assignment.rowpos;
267 mydataA = assignment.A;
268 mydataB = assignment.B;
271 INFO0("Receive my pos and assignment");
273 INFO2("Receive my pos (%d,%d) and assignment", myline, myrow);
275 /* Get my neighborhood from the assignment message (skipping myself) */
276 for (i = 0; i < PROC_MATRIX_SIZE - 1; i++) {
277 socket_line[i] = gras_socket_client(assignment.line[i]->name,
278 assignment.line[i]->port);
279 xbt_peer_free(assignment.line[i]);
281 for (i = 0; i < PROC_MATRIX_SIZE - 1; i++) {
282 socket_row[i] = gras_socket_client(assignment.row[i]->name,
283 assignment.row[i]->port);
284 xbt_peer_free(assignment.row[i]);
287 for (step = 0; step < PROC_MATRIX_SIZE; step++) {
288 gras_msg_send(master, "pmm_sync", NULL);
289 gras_msg_wait(600, "pmm_sync", NULL, NULL);
291 /* a line brodcast */
292 if (myline == step) {
293 VERB2("LINE: step(%d) = Myline(%d). Broadcast my data.", step, myline);
294 for (l = 0; l < PROC_MATRIX_SIZE - 1; l++) {
295 VERB1("LINE: Send to %s", gras_socket_peer_name(socket_row[l]));
296 gras_msg_send(socket_row[l], "dataB", &mydataB);
301 bB = xbt_matrix_new_sub(mydataB,
302 submatrix_size, submatrix_size, 0, 0, NULL);
306 gras_msg_wait(600, "dataB", &from, &bB);
309 RETHROW0("Can't get a data message from line : %s");
311 VERB3("LINE: step(%d) <> Myline(%d). Receive data from %s", step,
312 myline, gras_socket_peer_name(from));
317 VERB2("ROW: step(%d)=myrow(%d). Broadcast my data.", step, myrow);
318 for (l = 1; l < PROC_MATRIX_SIZE; l++) {
319 VERB1("ROW: Send to %s", gras_socket_peer_name(socket_line[l - 1]));
320 gras_msg_send(socket_line[l - 1], "dataA", &mydataA);
323 bA = xbt_matrix_new_sub(mydataA,
324 submatrix_size, submatrix_size, 0, 0, NULL);
328 gras_msg_wait(1200, "dataA", &from, &bA);
331 RETHROW0("Can't get a data message from row : %s");
333 VERB3("ROW: step(%d)<>myrow(%d). Receive data from %s", step, myrow,
334 gras_socket_peer_name(from));
336 xbt_matrix_double_addmult(bA, bB, bC);
340 /* send Result to master */
342 result.linepos = myline;
343 result.rowpos = myrow;
346 gras_msg_send(master, "result", &result);
349 RETHROW0("Failed to send answer to server: %s");
351 VERB2(">>>>>>>> Result sent to %s:%d <<<<<<<<",
352 gras_socket_peer_name(master), gras_socket_peer_port(master));
353 /* Free the allocated resources, and shut GRAS down */
359 xbt_matrix_free(mydataA);
360 xbt_matrix_free(mydataB);
361 /* FIXME: some are said to be unknown
362 gras_socket_close(master);
363 gras_socket_close(from);
364 for (l=0; l < PROC_MATRIX_SIZE-1; l++) {
366 gras_socket_close(socket_line[l]);
368 gras_socket_close(socket_row[l]);
374 int slave(int argc, char *argv[])
376 gras_socket_t mysock;
377 gras_socket_t master = NULL;
381 /* Init the GRAS's infrastructure */
382 gras_init(&argc, argv);
384 if (argc != 3 && argc != 2)
385 xbt_die("Usage: slave masterhost:masterport [rank]");
389 rank = atoi(argv[2]);
391 /* Register the known messages and my callback */
393 gras_cb_register("pmm_slave", pmm_worker_cb);
395 /* Create the connexions */
396 mysock = gras_socket_server_range(3000, 9999, 0, 0);
397 INFO1("Sensor %d starting", rank);
401 master = gras_socket_client_from_string(argv[1]);
405 if (e.category != system_error)
412 /* Join and run the group */
413 rank = amok_pm_group_join(master, "pmm");
414 amok_pm_mainloop(600);
417 gras_socket_close(mysock);
418 // gras_socket_close(master); Unknown