2 /* pmm - parallel matrix multiplication "double diffusion" */
4 /* Copyright (c) 2006-2008 The SimGrid team. 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"),
65 /* Function prototypes */
66 int slave(int argc, char *argv[]);
67 int master(int argc, char *argv[]);
70 /* **********************************************************************
72 * **********************************************************************/
74 /* Global private data */
76 int nbr_row, nbr_line;
81 int master(int argc, char *argv[])
91 xbt_dynar_t peers; /* group of slaves */
92 xbt_peer_t grid[SLAVE_COUNT]; /* The slaves as an array */
93 gras_socket_t socket[SLAVE_COUNT]; /* sockets for brodcast to slaves */
95 /* Init the GRAS's infrastructure */
96 gras_init(&argc, argv);
100 /* Initialize data matrices */
101 A = xbt_matrix_double_new_id(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
102 B = xbt_matrix_double_new_seq(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
103 C = xbt_matrix_double_new_zeros(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
105 /* Create the connexions */
106 xbt_assert0(argc > 1, "Usage: master <port>");
107 gras_socket_server(atoi(argv[1]));
108 peers = amok_pm_group_new("pmm");
110 /* friends, we're ready. Come and play */
111 INFO0("Wait for peers for 5 sec");
112 gras_msg_handleall(5);
113 while (xbt_dynar_length(peers)<9) {
114 INFO1("Got only %ld pals. Wait 5 more seconds", xbt_dynar_length(peers));
115 gras_msg_handleall(5);
117 INFO1("Good. Got %ld pals", xbt_dynar_length(peers));
119 for (i = 0; i < xbt_dynar_length(peers) && i < SLAVE_COUNT; i++) {
120 xbt_dynar_get_cpy(peers, i, &grid[i]);
121 socket[i] = gras_socket_client(grid[i]->name, grid[i]->port);
123 xbt_assert2(i == SLAVE_COUNT,
124 "Not enough slaves for this setting (got %d of %d). Change the deployment file",
127 /* Kill surnumerous slaves */
128 for (i = SLAVE_COUNT; i < xbt_dynar_length(peers);) {
131 xbt_dynar_remove_at(peers, i, &h);
132 INFO2("Too much slaves. Killing %s:%d", h->name, h->port);
133 amok_pm_kill_hp(h->name, h->port);
138 /* Assign job to slaves */
139 int row = 0, line = 0;
140 INFO0("XXXXXXXXXXXXXXXXXXXXXX begin Multiplication");
141 for (i = 0; i < SLAVE_COUNT; i++) {
142 s_pmm_assignment_t assignment;
145 assignment.linepos = line; // assigned line
146 assignment.rowpos = row; // assigned row
149 for (j = 0, k = 0; j < PROC_MATRIX_SIZE; j++) {
150 if (i != j * PROC_MATRIX_SIZE + (row)) {
151 assignment.row[k] = grid[j * PROC_MATRIX_SIZE + (row)];
155 for (j = 0, k = 0; j < PROC_MATRIX_SIZE; j++) {
156 if (i != (line) * PROC_MATRIX_SIZE + j) {
157 assignment.line[k] = grid[(line) * PROC_MATRIX_SIZE + j];
162 assignment.A = xbt_matrix_new_sub(A,
163 submatrix_size, submatrix_size,
164 submatrix_size * line,
165 submatrix_size * row, NULL);
167 xbt_matrix_new_sub(B, submatrix_size, submatrix_size,
168 submatrix_size * line, submatrix_size * row, NULL);
170 if (row >= PROC_MATRIX_SIZE) {
175 gras_msg_send(socket[i], "pmm_slave", &assignment);
176 xbt_matrix_free(assignment.A);
177 xbt_matrix_free(assignment.B);
180 /* (have a rest while the slave perform the multiplication) */
182 /* Retrieve the results */
183 for (i = 0; i < SLAVE_COUNT; i++) {
184 gras_msg_wait(6000, "result", &from, &result);
185 VERB2("%d slaves are done already. Waiting for %d", i + 1, SLAVE_COUNT);
186 xbt_matrix_copy_values(C, result.C, submatrix_size, submatrix_size,
187 submatrix_size * result.linepos,
188 submatrix_size * result.rowpos, 0, 0, NULL);
189 xbt_matrix_free(result.C);
193 if (DATA_MATRIX_SIZE < 30) {
194 INFO0("The Result of Multiplication is :");
195 xbt_matrix_dump(C, "C:res", 0, xbt_matrix_dump_display_double);
197 INFO1("Matrix size too big (%d>30) to be displayed here",
201 amok_pm_group_shutdown("pmm"); /* Ok, we're out of here */
203 for (i = 0; i < SLAVE_COUNT; i++) {
204 gras_socket_close(socket[i]);
212 } /* end_of_master */
214 /* **********************************************************************
216 * **********************************************************************/
218 static int pmm_worker_cb(gras_msg_cb_ctx_t ctx, void *payload)
220 /* Recover my initialized Data and My Position */
221 s_pmm_assignment_t assignment = *(s_pmm_assignment_t *) payload;
222 gras_socket_t master = gras_msg_cb_ctx_from(ctx);
227 xbt_matrix_t bA = xbt_matrix_new(submatrix_size, submatrix_size,
228 sizeof(double), NULL);
229 xbt_matrix_t bB = xbt_matrix_new(submatrix_size, submatrix_size,
230 sizeof(double), NULL);
233 xbt_matrix_t mydataA, mydataB;
235 xbt_matrix_double_new_zeros(submatrix_size, submatrix_size);
239 gras_socket_t from; /* to exchange data with my neighbor */
241 /* sockets for brodcast to other slave */
242 gras_socket_t socket_line[PROC_MATRIX_SIZE - 1];
243 gras_socket_t socket_row[PROC_MATRIX_SIZE - 1];
244 memset(socket_line, 0, sizeof(socket_line));
245 memset(socket_row, 0, sizeof(socket_row));
249 gras_os_sleep(1); /* wait for my pals */
251 myline = assignment.linepos;
252 myrow = assignment.rowpos;
253 mydataA = assignment.A;
254 mydataB = assignment.B;
256 INFO2("Receive my pos (%d,%d) and assignment", myline, myrow);
258 /* Get my neighborhood from the assignment message (skipping myself) */
259 for (i = 0; i < PROC_MATRIX_SIZE - 1; i++) {
260 socket_line[i] = gras_socket_client(assignment.line[i]->name,
261 assignment.line[i]->port);
262 xbt_peer_free(assignment.line[i]);
264 for (i = 0; i < PROC_MATRIX_SIZE - 1; i++) {
265 socket_row[i] = gras_socket_client(assignment.row[i]->name,
266 assignment.row[i]->port);
267 xbt_peer_free(assignment.row[i]);
270 for (step = 0; step < PROC_MATRIX_SIZE; step++) {
272 /* a line brodcast */
273 if (myline == step) {
274 INFO2("LINE: step(%d) = Myline(%d). Broadcast my data.", step, myline);
275 for (l = 0; l < PROC_MATRIX_SIZE - 1; l++) {
276 INFO1("LINE: Send to %s", gras_socket_peer_name(socket_row[l]));
277 gras_msg_send(socket_row[l], "dataB", &mydataB);
282 bB = xbt_matrix_new_sub(mydataB,
283 submatrix_size, submatrix_size, 0, 0, NULL);
287 gras_msg_wait(600, "dataB", &from, &bB);
290 RETHROW0("Can't get a data message from line : %s");
292 INFO3("LINE: step(%d) <> Myline(%d). Receive data from %s", step,
293 myline, gras_socket_peer_name(from));
298 INFO2("ROW: step(%d)=myrow(%d). Broadcast my data.", step, myrow);
299 for (l = 1; l < PROC_MATRIX_SIZE; l++) {
300 INFO1("ROW: Send to %s", gras_socket_peer_name(socket_line[l - 1]));
301 gras_msg_send(socket_line[l - 1], "dataA", &mydataA);
304 bA = xbt_matrix_new_sub(mydataA,
305 submatrix_size, submatrix_size, 0, 0, NULL);
309 gras_msg_wait(1200, "dataA", &from, &bA);
312 RETHROW0("Can't get a data message from row : %s");
314 INFO3("ROW: step(%d)<>myrow(%d). Receive data from %s", step, myrow,
315 gras_socket_peer_name(from));
317 xbt_matrix_double_addmult(bA, bB, bC);
321 /* send Result to master */
323 result.linepos = myline;
324 result.rowpos = myrow;
327 gras_msg_send(master, "result", &result);
330 RETHROW0("Failed to send answer to server: %s");
332 INFO2(">>>>>>>> Result sent to %s:%d <<<<<<<<",
333 gras_socket_peer_name(master), gras_socket_peer_port(master));
334 /* Free the allocated resources, and shut GRAS down */
340 xbt_matrix_free(mydataA);
341 xbt_matrix_free(mydataB);
342 /* FIXME: some are said to be unknown
343 gras_socket_close(master);
344 gras_socket_close(from);
345 for (l=0; l < PROC_MATRIX_SIZE-1; l++) {
347 gras_socket_close(socket_line[l]);
349 gras_socket_close(socket_row[l]);
355 int slave(int argc, char *argv[])
357 gras_socket_t mysock;
358 gras_socket_t master = NULL;
362 /* Init the GRAS's infrastructure */
363 gras_init(&argc, argv);
365 if (argc != 3 && argc != 2)
366 xbt_die("Usage: slave masterhost:masterport [rank]");
370 rank = atoi(argv[2]);
372 /* Register the known messages and my callback */
374 gras_cb_register("pmm_slave", pmm_worker_cb);
376 /* Create the connexions */
377 mysock = gras_socket_server_range(3000, 9999, 0, 0);
378 INFO1("Sensor %d starting", rank);
382 master = gras_socket_client_from_string(argv[1]);
386 if (e.category != system_error)
393 /* Join and run the group */
394 rank = amok_pm_group_join(master, "pmm");
395 amok_pm_mainloop(600);
398 gras_socket_close(mysock);
399 // gras_socket_close(master); Unknown