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 {
24 int linepos; int rowpos;
25 xbt_matrix_t C GRAS_ANNOTE(subtype, double);
28 typedef struct s_result result_t;
30 /* struct to send initial data to slave */
31 GRAS_DEFINE_TYPE(s_pmm_assignment, struct s_pmm_assignment {
34 xbt_peer_t line[NEIGHBOR_COUNT];
35 xbt_peer_t row[NEIGHBOR_COUNT];
36 xbt_matrix_t A GRAS_ANNOTE(subtype, double);
37 xbt_matrix_t B GRAS_ANNOTE(subtype, double);
40 typedef struct s_pmm_assignment s_pmm_assignment_t;
42 /* register messages which may be sent (common to client and server) */
43 static void register_messages(void)
45 gras_datadesc_type_t result_type;
46 gras_datadesc_type_t pmm_assignment_type;
48 gras_datadesc_set_const("NEIGHBOR_COUNT", NEIGHBOR_COUNT);
49 result_type = gras_datadesc_by_symbol(s_result);
50 pmm_assignment_type = gras_datadesc_by_symbol(s_pmm_assignment);
52 /* receive a final result from slave */
53 gras_msgtype_declare("result", result_type);
55 /* send from master to slave to assign a position and some data */
56 gras_msgtype_declare("pmm_slave", pmm_assignment_type);
58 /* send data between slaves */
59 gras_msgtype_declare("dataA",
60 gras_datadesc_matrix(gras_datadesc_by_name
62 gras_msgtype_declare("dataB",
63 gras_datadesc_matrix(gras_datadesc_by_name
66 /* synchronization message */
67 gras_msgtype_declare("pmm_sync", 0);
70 /* Function prototypes */
71 int slave(int argc, char *argv[]);
72 int master(int argc, char *argv[]);
75 /* **********************************************************************
77 * **********************************************************************/
79 /* Global private data */
81 int nbr_row, nbr_line;
86 int master(int argc, char *argv[])
96 xbt_dynar_t peers; /* group of slaves */
97 xbt_peer_t grid[SLAVE_COUNT]; /* The slaves as an array */
98 gras_socket_t socket[SLAVE_COUNT]; /* sockets for brodcast to slaves */
100 /* Init the GRAS's infrastructure */
101 gras_init(&argc, argv);
105 /* Initialize data matrices */
106 A = xbt_matrix_double_new_id(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
107 B = xbt_matrix_double_new_seq(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
108 C = xbt_matrix_double_new_zeros(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
110 /* Create the connexions */
111 xbt_assert0(argc > 1, "Usage: master <port>");
112 gras_socket_server(atoi(argv[1]));
113 peers = amok_pm_group_new("pmm");
115 /* friends, we're ready. Come and play */
116 XBT_INFO("Wait for peers for 2 sec");
117 gras_msg_handleall(2);
118 while (xbt_dynar_length(peers) < SLAVE_COUNT) {
119 XBT_INFO("Got only %ld pals (of %d). Wait 2 more seconds",
120 xbt_dynar_length(peers),SLAVE_COUNT);
121 gras_msg_handleall(2);
123 XBT_INFO("Good. Got %ld pals", xbt_dynar_length(peers));
125 for (i = 0; i < xbt_dynar_length(peers) && i < SLAVE_COUNT; i++) {
126 xbt_dynar_get_cpy(peers, i, &grid[i]);
127 socket[i] = gras_socket_client(grid[i]->name, grid[i]->port);
129 xbt_assert2(i == SLAVE_COUNT,
130 "Not enough slaves for this setting (got %d of %d). Change the deployment file",
133 /* Kill surnumerous slaves */
134 for (i = SLAVE_COUNT; i < xbt_dynar_length(peers);) {
137 xbt_dynar_remove_at(peers, i, &h);
138 XBT_INFO("Too much slaves. Killing %s:%d", h->name, h->port);
139 amok_pm_kill_hp(h->name, h->port);
144 /* Assign job to slaves */
145 int row = 0, line = 0;
146 XBT_INFO("XXXXXXXXXXXXXXXXXXXXXX begin Multiplication");
147 for (i = 0; i < SLAVE_COUNT; i++) {
148 s_pmm_assignment_t assignment;
151 assignment.linepos = line; // assigned line
152 assignment.rowpos = row; // assigned row
155 for (j = 0, k = 0; j < PROC_MATRIX_SIZE; j++) {
156 if (i != j * PROC_MATRIX_SIZE + (row)) {
157 assignment.row[k] = grid[j * PROC_MATRIX_SIZE + (row)];
161 for (j = 0, k = 0; j < PROC_MATRIX_SIZE; j++) {
162 if (i != (line) * PROC_MATRIX_SIZE + j) {
163 assignment.line[k] = grid[(line) * PROC_MATRIX_SIZE + j];
168 assignment.A = xbt_matrix_new_sub(A,
169 submatrix_size, submatrix_size,
170 submatrix_size * line,
171 submatrix_size * row, NULL);
173 xbt_matrix_new_sub(B, submatrix_size, submatrix_size,
174 submatrix_size * line, submatrix_size * row,
177 if (row >= PROC_MATRIX_SIZE) {
182 gras_msg_send(socket[i], "pmm_slave", &assignment);
183 xbt_matrix_free(assignment.A);
184 xbt_matrix_free(assignment.B);
187 /* synchronize slaves */
188 for (i = 0; i < PROC_MATRIX_SIZE; i++) {
190 for (j = 0; j < SLAVE_COUNT; j++)
191 gras_msg_wait(600, "pmm_sync", NULL, NULL);
192 for (j = 0; j < SLAVE_COUNT; j++)
193 gras_msg_send(socket[j], "pmm_sync", NULL);
196 /* Retrieve the results */
197 for (i = 0; i < SLAVE_COUNT; i++) {
198 gras_msg_wait(6000, "result", &from, &result);
199 XBT_VERB("%d slaves are done already. Waiting for %d", i + 1,
201 xbt_matrix_copy_values(C, result.C, submatrix_size, submatrix_size,
202 submatrix_size * result.linepos,
203 submatrix_size * result.rowpos, 0, 0, NULL);
204 xbt_matrix_free(result.C);
208 if (xbt_matrix_double_is_seq(C))
209 XBT_INFO("XXXXXXXXXXXXXXXXXXXXXX Ok, the result matches expectations");
211 XBT_WARN("the result seems wrong");
212 if (DATA_MATRIX_SIZE < 30) {
213 XBT_INFO("The Result of Multiplication is :");
214 xbt_matrix_dump(C, "C:res", 0, xbt_matrix_dump_display_double);
216 XBT_INFO("Matrix size too big (%d>30) to be displayed here",
221 amok_pm_group_shutdown("pmm"); /* Ok, we're out of here */
223 for (i = 0; i < SLAVE_COUNT; i++)
224 gras_socket_close(socket[i]);
231 } /* end_of_master */
233 /* **********************************************************************
235 * **********************************************************************/
237 static int pmm_worker_cb(gras_msg_cb_ctx_t ctx, void *payload)
239 /* Recover my initialized Data and My Position */
240 s_pmm_assignment_t assignment = *(s_pmm_assignment_t *) payload;
241 gras_socket_t master = gras_msg_cb_ctx_from(ctx);
246 xbt_matrix_t bA = xbt_matrix_new(submatrix_size, submatrix_size,
247 sizeof(double), NULL);
248 xbt_matrix_t bB = xbt_matrix_new(submatrix_size, submatrix_size,
249 sizeof(double), NULL);
252 xbt_matrix_t mydataA, mydataB;
254 xbt_matrix_double_new_zeros(submatrix_size, submatrix_size);
258 gras_socket_t from; /* to exchange data with my neighbor */
260 /* sockets for brodcast to other slave */
261 gras_socket_t socket_line[PROC_MATRIX_SIZE - 1];
262 gras_socket_t socket_row[PROC_MATRIX_SIZE - 1];
263 memset(socket_line, 0, sizeof(socket_line));
264 memset(socket_row, 0, sizeof(socket_row));
268 gras_os_sleep(1); /* wait for my pals */
270 myline = assignment.linepos;
271 myrow = assignment.rowpos;
272 mydataA = assignment.A;
273 mydataB = assignment.B;
276 XBT_INFO("Receive my pos and assignment");
278 XBT_INFO("Receive my pos (%d,%d) and assignment", myline, myrow);
280 /* Get my neighborhood from the assignment message (skipping myself) */
281 for (i = 0; i < PROC_MATRIX_SIZE - 1; i++) {
282 socket_line[i] = gras_socket_client(assignment.line[i]->name,
283 assignment.line[i]->port);
284 xbt_peer_free(assignment.line[i]);
286 for (i = 0; i < PROC_MATRIX_SIZE - 1; i++) {
287 socket_row[i] = gras_socket_client(assignment.row[i]->name,
288 assignment.row[i]->port);
289 xbt_peer_free(assignment.row[i]);
292 for (step = 0; step < PROC_MATRIX_SIZE; step++) {
293 gras_msg_send(master, "pmm_sync", NULL);
294 gras_msg_wait(600, "pmm_sync", NULL, NULL);
296 /* a line brodcast */
297 if (myline == step) {
298 XBT_VERB("LINE: step(%d) = Myline(%d). Broadcast my data.", step,
300 for (l = 0; l < PROC_MATRIX_SIZE - 1; l++) {
301 XBT_VERB("LINE: Send to %s", gras_socket_peer_name(socket_row[l]));
302 gras_msg_send(socket_row[l], "dataB", &mydataB);
307 bB = xbt_matrix_new_sub(mydataB,
308 submatrix_size, submatrix_size, 0, 0, NULL);
312 gras_msg_wait(600, "dataB", &from, &bB);
315 RETHROWF("Can't get a data message from line : %s");
317 XBT_VERB("LINE: step(%d) <> Myline(%d). Receive data from %s", step,
318 myline, gras_socket_peer_name(from));
323 XBT_VERB("ROW: step(%d)=myrow(%d). Broadcast my data.", step, myrow);
324 for (l = 1; l < PROC_MATRIX_SIZE; l++) {
325 XBT_VERB("ROW: Send to %s",
326 gras_socket_peer_name(socket_line[l - 1]));
327 gras_msg_send(socket_line[l - 1], "dataA", &mydataA);
330 bA = xbt_matrix_new_sub(mydataA,
331 submatrix_size, submatrix_size, 0, 0, NULL);
335 gras_msg_wait(1200, "dataA", &from, &bA);
338 RETHROWF("Can't get a data message from row : %s");
340 XBT_VERB("ROW: step(%d)<>myrow(%d). Receive data from %s", step, myrow,
341 gras_socket_peer_name(from));
343 xbt_matrix_double_addmult(bA, bB, bC);
347 /* send Result to master */
349 result.linepos = myline;
350 result.rowpos = myrow;
353 gras_msg_send(master, "result", &result);
356 RETHROWF("Failed to send answer to server: %s");
358 XBT_VERB(">>>>>>>> Result sent to %s:%d <<<<<<<<",
359 gras_socket_peer_name(master), gras_socket_peer_port(master));
360 /* Free the allocated resources, and shut GRAS down */
366 xbt_matrix_free(mydataA);
367 xbt_matrix_free(mydataB);
368 /* FIXME: some are said to be unknown
369 gras_socket_close(master);
370 gras_socket_close(from);
371 for (l=0; l < PROC_MATRIX_SIZE-1; l++) {
373 gras_socket_close(socket_line[l]);
375 gras_socket_close(socket_row[l]);
381 int slave(int argc, char *argv[])
383 gras_socket_t mysock;
384 gras_socket_t master = NULL;
388 /* Init the GRAS's infrastructure */
389 gras_init(&argc, argv);
391 if (argc != 3 && argc != 2)
392 xbt_die("Usage: slave masterhost:masterport [rank]");
396 rank = atoi(argv[2]);
398 /* Register the known messages and my callback */
400 gras_cb_register("pmm_slave", pmm_worker_cb);
402 /* Create the connexions */
403 mysock = gras_socket_server_range(3000, 9999, 0, 0);
404 XBT_INFO("Sensor %d starting", rank);
408 master = gras_socket_client_from_string(argv[1]);
412 if (e.category != system_error)
419 /* Join and run the group */
420 rank = amok_pm_group_join(master, "pmm");
421 amok_pm_mainloop(600);
424 gras_socket_close(mysock);
425 // gras_socket_close(master); Unknown