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;
82 int master(int argc, char *argv[])
92 xbt_dynar_t peers; /* group of slaves */
93 xbt_peer_t grid[SLAVE_COUNT]; /* The slaves as an array */
94 gras_socket_t socket[SLAVE_COUNT]; /* sockets for brodcast to slaves */
96 /* Init the GRAS's infrastructure */
97 gras_init(&argc, argv);
101 /* Initialize data matrices */
102 A = xbt_matrix_double_new_id(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
103 B = xbt_matrix_double_new_seq(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
104 C = xbt_matrix_double_new_zeros(DATA_MATRIX_SIZE, DATA_MATRIX_SIZE);
106 /* Create the connexions */
107 xbt_assert0(argc > 1, "Usage: master <port>");
108 gras_socket_server(atoi(argv[1]));
109 peers = amok_pm_group_new("pmm");
111 /* friends, we're ready. Come and play */
112 INFO0("Wait for peers for 5 sec");
113 gras_msg_handleall(5);
114 INFO1("Got %ld pals", xbt_dynar_length(peers));
116 for (i = 0; i < xbt_dynar_length(peers) && i < SLAVE_COUNT; i++) {
118 xbt_dynar_get_cpy(peers, i, &grid[i]);
119 socket[i] = gras_socket_client(grid[i]->name, grid[i]->port);
121 xbt_assert2(i == SLAVE_COUNT,
122 "Not enough slaves for this setting (got %d of %d). Change the deployment file",
125 /* Kill surnumerous slaves */
126 for (i = SLAVE_COUNT; i < xbt_dynar_length(peers);) {
129 xbt_dynar_remove_at(peers, i, &h);
130 INFO2("Too much slaves. Killing %s:%d", h->name, h->port);
131 amok_pm_kill_hp(h->name, h->port);
136 /* Assign job to slaves */
137 int row = 0, line = 0;
138 INFO0("XXXXXXXXXXXXXXXXXXXXXX begin Multiplication");
139 for (i = 0; i < SLAVE_COUNT; i++) {
140 s_pmm_assignment_t assignment;
143 assignment.linepos = line; // assigned line
144 assignment.rowpos = row; // assigned row
147 for (j = 0, k = 0; j < PROC_MATRIX_SIZE; j++) {
148 if (i != j * PROC_MATRIX_SIZE + (row)) {
149 assignment.row[k] = grid[j * PROC_MATRIX_SIZE + (row)];
153 for (j = 0, k = 0; j < PROC_MATRIX_SIZE; j++) {
154 if (i != (line) * PROC_MATRIX_SIZE + j) {
155 assignment.line[k] = grid[(line) * PROC_MATRIX_SIZE + j];
160 assignment.A = xbt_matrix_new_sub(A,
161 submatrix_size, submatrix_size,
162 submatrix_size * line,
163 submatrix_size * row, NULL);
165 xbt_matrix_new_sub(B, submatrix_size, submatrix_size,
166 submatrix_size * line, submatrix_size * row, NULL);
168 if (row >= PROC_MATRIX_SIZE) {
173 gras_msg_send(socket[i], "pmm_slave", &assignment);
174 xbt_matrix_free(assignment.A);
175 xbt_matrix_free(assignment.B);
178 /* (have a rest while the slave perform the multiplication) */
180 /* Retrieve the results */
181 for (i = 0; i < SLAVE_COUNT; i++) {
182 gras_msg_wait(6000, "result", &from, &result);
183 VERB2("%d slaves are done already. Waiting for %d", i + 1, SLAVE_COUNT);
184 xbt_matrix_copy_values(C, result.C, submatrix_size, submatrix_size,
185 submatrix_size * result.linepos,
186 submatrix_size * result.rowpos, 0, 0, NULL);
187 xbt_matrix_free(result.C);
191 if (DATA_MATRIX_SIZE < 30) {
192 INFO0("The Result of Multiplication is :");
193 xbt_matrix_dump(C, "C:res", 0, xbt_matrix_dump_display_double);
195 INFO1("Matrix size too big (%d>30) to be displayed here",
199 amok_pm_group_shutdown("pmm"); /* Ok, we're out of here */
201 for (i = 0; i < SLAVE_COUNT; i++) {
202 gras_socket_close(socket[i]);
210 } /* end_of_master */
212 /* **********************************************************************
214 * **********************************************************************/
216 static int pmm_worker_cb(gras_msg_cb_ctx_t ctx, void *payload)
218 /* Recover my initialized Data and My Position */
219 s_pmm_assignment_t assignment = *(s_pmm_assignment_t *) payload;
220 gras_socket_t master = gras_msg_cb_ctx_from(ctx);
225 xbt_matrix_t bA = xbt_matrix_new(submatrix_size, submatrix_size,
226 sizeof(double), NULL);
227 xbt_matrix_t bB = xbt_matrix_new(submatrix_size, submatrix_size,
228 sizeof(double), NULL);
231 xbt_matrix_t mydataA, mydataB;
233 xbt_matrix_double_new_zeros(submatrix_size, submatrix_size);
237 gras_socket_t from; /* to exchange data with my neighbor */
239 /* sockets for brodcast to other slave */
240 gras_socket_t socket_line[PROC_MATRIX_SIZE - 1];
241 gras_socket_t socket_row[PROC_MATRIX_SIZE - 1];
242 memset(socket_line, 0, sizeof(socket_line));
243 memset(socket_row, 0, sizeof(socket_row));
247 gras_os_sleep(1); /* wait for my pals */
249 myline = assignment.linepos;
250 myrow = assignment.rowpos;
251 mydataA = assignment.A;
252 mydataB = assignment.B;
254 INFO2("Receive my pos (%d,%d) and assignment", myline, myrow);
256 /* Get my neighborhood from the assignment message (skipping myself) */
257 for (i = 0; i < PROC_MATRIX_SIZE - 1; i++) {
258 socket_line[i] = gras_socket_client(assignment.line[i]->name,
259 assignment.line[i]->port);
260 xbt_peer_free(assignment.line[i]);
262 for (i = 0; i < PROC_MATRIX_SIZE - 1; i++) {
263 socket_row[i] = gras_socket_client(assignment.row[i]->name,
264 assignment.row[i]->port);
265 xbt_peer_free(assignment.row[i]);
268 for (step = 0; step < PROC_MATRIX_SIZE; step++) {
270 /* a line brodcast */
271 if (myline == step) {
272 INFO2("LINE: step(%d) = Myline(%d). Broadcast my data.", step, myline);
273 for (l = 0; l < PROC_MATRIX_SIZE - 1; l++) {
274 INFO1("LINE: Send to %s", gras_socket_peer_name(socket_row[l]));
275 gras_msg_send(socket_row[l], "dataB", &mydataB);
280 bB = xbt_matrix_new_sub(mydataB,
281 submatrix_size, submatrix_size, 0, 0, NULL);
285 gras_msg_wait(600, "dataB", &from, &bB);
288 RETHROW0("Can't get a data message from line : %s");
290 INFO3("LINE: step(%d) <> Myline(%d). Receive data from %s", step,
291 myline, gras_socket_peer_name(from));
296 INFO2("ROW: step(%d)=myrow(%d). Broadcast my data.", step, myrow);
297 for (l = 1; l < PROC_MATRIX_SIZE; l++) {
298 INFO1("ROW: Send to %s", gras_socket_peer_name(socket_line[l - 1]));
299 gras_msg_send(socket_line[l - 1], "dataA", &mydataA);
302 bA = xbt_matrix_new_sub(mydataA,
303 submatrix_size, submatrix_size, 0, 0, NULL);
307 gras_msg_wait(1200, "dataA", &from, &bA);
310 RETHROW0("Can't get a data message from row : %s");
312 INFO3("ROW: step(%d)<>myrow(%d). Receive data from %s", step, myrow,
313 gras_socket_peer_name(from));
315 xbt_matrix_double_addmult(bA, bB, bC);
319 /* send Result to master */
321 result.linepos = myline;
322 result.rowpos = myrow;
325 gras_msg_send(master, "result", &result);
328 RETHROW0("Failed to send answer to server: %s");
330 INFO2(">>>>>>>> Result sent to %s:%d <<<<<<<<",
331 gras_socket_peer_name(master), gras_socket_peer_port(master));
332 /* Free the allocated resources, and shut GRAS down */
338 xbt_matrix_free(mydataA);
339 xbt_matrix_free(mydataB);
340 /* FIXME: some are said to be unknown
341 gras_socket_close(master);
342 gras_socket_close(from);
343 for (l=0; l < PROC_MATRIX_SIZE-1; l++) {
345 gras_socket_close(socket_line[l]);
347 gras_socket_close(socket_row[l]);
353 int slave(int argc, char *argv[])
355 gras_socket_t mysock;
356 gras_socket_t master = NULL;
360 /* Init the GRAS's infrastructure */
361 gras_init(&argc, argv);
363 if (argc != 3 && argc != 2)
364 xbt_die("Usage: slave masterhost:masterport [rank]");
368 rank = atoi(argv[2]);
370 /* Register the known messages and my callback */
372 gras_cb_register("pmm_slave", pmm_worker_cb);
374 /* Create the connexions */
375 mysock = gras_socket_server_range(3000, 9999, 0, 0);
376 INFO1("Sensor %d starting", rank);
380 master = gras_socket_client_from_string(argv[1]);
384 if (e.category != system_error)
391 /* Join and run the group */
392 amok_pm_group_join(master, "pmm", rank);
393 amok_pm_mainloop(600);
396 gras_socket_close(mysock);
397 // gras_socket_close(master); Unknown