2 /* pmm - parallel matrix multiplication "double diffusion" */
4 /* Copyright (c) 2006 Ahmed Harbaoui. */
5 /* Copyright (c) 2006 Martin Quinson. */
6 /* All rights reserved. */
8 /* This program is free software; you can redistribute it and/or modify it
9 * under the terms of the license (GNU LGPL) which comes with this package. */
12 #include "xbt/matrix.h"
13 #include "amok/peermanagement.h"
15 #define PROC_MATRIX_SIZE 3
16 #define NEIGHBOR_COUNT PROC_MATRIX_SIZE - 1
17 #define SLAVE_COUNT (PROC_MATRIX_SIZE*PROC_MATRIX_SIZE)
19 #define DATA_MATRIX_SIZE 18
20 const int submatrix_size = DATA_MATRIX_SIZE/PROC_MATRIX_SIZE;
22 XBT_LOG_NEW_DEFAULT_CATEGORY(pmm,"Parallel Matrix Multiplication");
24 /* struct for recovering results */
25 GRAS_DEFINE_TYPE(s_result,struct s_result {
28 xbt_matrix_t C GRAS_ANNOTE(subtype,double);
30 typedef struct s_result result_t;
32 /* struct to send initial data to slave */
33 GRAS_DEFINE_TYPE(s_pmm_assignment,struct s_pmm_assignment {
36 xbt_peer_t line[NEIGHBOR_COUNT];
37 xbt_peer_t row[NEIGHBOR_COUNT];
38 xbt_matrix_t A GRAS_ANNOTE(subtype,double);
39 xbt_matrix_t B GRAS_ANNOTE(subtype,double);
41 typedef struct s_pmm_assignment s_pmm_assignment_t;
43 /* register messages which may be sent (common to client and server) */
44 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", gras_datadesc_matrix(gras_datadesc_by_name("double"),NULL));
60 gras_msgtype_declare("dataB", gras_datadesc_matrix(gras_datadesc_by_name("double"),NULL));
63 /* Function prototypes */
64 int slave (int argc,char *argv[]);
65 int master (int argc,char *argv[]);
68 /* **********************************************************************
70 * **********************************************************************/
72 /* Global private data */
80 int master (int argc,char *argv[]) {
89 xbt_dynar_t peers; /* group of slaves */
90 xbt_peer_t grid[SLAVE_COUNT]; /* The slaves as an array */
91 gras_socket_t socket[SLAVE_COUNT]; /* sockets for brodcast to slaves */
93 /* Init the GRAS's infrastructure */
94 gras_init(&argc, argv);
98 /* Initialize data matrices */
99 A = xbt_matrix_double_new_id(DATA_MATRIX_SIZE,DATA_MATRIX_SIZE);
100 B = xbt_matrix_double_new_seq(DATA_MATRIX_SIZE,DATA_MATRIX_SIZE);
101 C = xbt_matrix_double_new_zeros(DATA_MATRIX_SIZE,DATA_MATRIX_SIZE);
103 /* Create the connexions */
104 xbt_assert0(argc>1, "Usage: master <port>");
105 gras_socket_server(atoi(argv[1]));
106 peers=amok_pm_group_new("pmm");
108 /* friends, we're ready. Come and play */
109 INFO0("Wait for peers for 5 sec");
110 gras_msg_handleall(5);
111 INFO1("Got %ld pals",xbt_dynar_length(peers));
114 i<xbt_dynar_length(peers) && i<SLAVE_COUNT;
117 xbt_dynar_get_cpy(peers,i,&grid[i]);
118 socket[i]=gras_socket_client(grid[i]->name,grid[i]->port);
120 xbt_assert2(i==SLAVE_COUNT,
121 "Not enough slaves for this setting (got %d of %d). Change the deployment file",
124 /* Kill surnumerous slaves */
125 for (i=SLAVE_COUNT; i<xbt_dynar_length(peers); ) {
128 xbt_dynar_remove_at(peers,i,&h);
129 INFO2("Too much slaves. Killing %s:%d", h->name, h->port);
130 amok_pm_kill_hp(h->name,h->port);
135 /* Assign job to slaves */
137 INFO0("XXXXXXXXXXXXXXXXXXXXXX begin Multiplication");
138 for(i=0 ; i<SLAVE_COUNT; i++){
139 s_pmm_assignment_t assignment;
142 assignment.linepos=line; // assigned line
143 assignment.rowpos=row; // assigned row
146 for (j=0,k=0; j<PROC_MATRIX_SIZE; j++) {
147 if (i != j*PROC_MATRIX_SIZE+(row)) {
148 assignment.row[k] = grid[ j*PROC_MATRIX_SIZE+(row) ] ;
152 for (j=0,k=0; j<PROC_MATRIX_SIZE; j++) {
153 if (i != (line)*PROC_MATRIX_SIZE+j) {
154 assignment.line[k] = grid[ (line)*PROC_MATRIX_SIZE+j ] ;
159 assignment.A=xbt_matrix_new_sub(A,
160 submatrix_size,submatrix_size,
161 submatrix_size*line,submatrix_size*row,
163 assignment.B=xbt_matrix_new_sub(B,
164 submatrix_size,submatrix_size,
165 submatrix_size*line,submatrix_size*row,
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,
188 xbt_matrix_free(result.C);
192 if (DATA_MATRIX_SIZE < 30) {
193 INFO0 ("The Result of Multiplication is :");
194 xbt_matrix_dump(C,"C:res",0,xbt_matrix_dump_display_double);
196 INFO1("Matrix size too big (%d>30) to be displayed here",DATA_MATRIX_SIZE);
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) {
217 /* Recover my initialized Data and My Position*/
218 s_pmm_assignment_t assignment = *(s_pmm_assignment_t*)payload;
219 gras_socket_t master = gras_msg_cb_ctx_from(ctx);
224 xbt_matrix_t bA=xbt_matrix_new(submatrix_size,submatrix_size,
225 sizeof(double),NULL);
226 xbt_matrix_t bB=xbt_matrix_new(submatrix_size,submatrix_size,
227 sizeof(double),NULL);
230 xbt_matrix_t mydataA,mydataB;
231 xbt_matrix_t bC=xbt_matrix_double_new_zeros(submatrix_size,submatrix_size);
235 gras_socket_t from; /* to exchange data with my neighbor */
237 /* sockets for brodcast to other slave */
238 gras_socket_t socket_line[PROC_MATRIX_SIZE-1];
239 gras_socket_t socket_row[PROC_MATRIX_SIZE-1];
240 memset(socket_line,0,sizeof(socket_line));
241 memset(socket_row,0,sizeof(socket_row));
245 gras_os_sleep(1); /* wait for my pals */
247 myline = assignment.linepos;
248 myrow = assignment.rowpos;
249 mydataA = assignment.A;
250 mydataB = assignment.B;
252 INFO2("Receive my pos (%d,%d) and assignment",myline,myrow);
254 /* Get my neighborhood from the assignment message (skipping myself) */
255 for (i=0 ; i<PROC_MATRIX_SIZE-1 ; i++){
256 socket_line[i]=gras_socket_client(assignment.line[i]->name,
257 assignment.line[i]->port);
258 xbt_peer_free(assignment.line[i]);
260 for (i=0 ; i<PROC_MATRIX_SIZE-1 ; i++){
261 socket_row[i]=gras_socket_client(assignment.row[i]->name,
262 assignment.row[i]->port);
263 xbt_peer_free(assignment.row[i]);
266 for (step=0; step<PROC_MATRIX_SIZE;step++) {
268 /* a line brodcast */
270 INFO3("LINE: step(%d) = Myline(%d). Broadcast my data (myport=%d).",
271 step,myline,gras_os_myport());
272 for (l=0;l < PROC_MATRIX_SIZE-1 ;l++) {
273 INFO2("LINE: Send to %s:%d",
274 gras_socket_peer_name(socket_row[l]),
275 gras_socket_peer_port(socket_row[l]));
276 gras_msg_send(socket_row[l], "dataB", &mydataB);
281 bB = xbt_matrix_new_sub(mydataB,
282 submatrix_size,submatrix_size,
287 gras_msg_wait(600,"dataB",&from,&bB);
289 RETHROW0("Can't get a data message from line : %s");
291 INFO4("LINE: step(%d) <> Myline(%d). Receive data from %s:%d",step,myline,
292 gras_socket_peer_name(from), gras_socket_peer_port(from));
297 INFO2("ROW: step(%d)=myrow(%d). Broadcast my data",step,myrow);
298 for (l=1;l < PROC_MATRIX_SIZE ; l++) {
299 INFO2("ROW: Send to %s:%d",
300 gras_socket_peer_name(socket_line[l-1]),
301 gras_socket_peer_port(socket_line[l-1]));
302 gras_msg_send(socket_line[l-1],"dataA", &mydataA);
305 bA = xbt_matrix_new_sub(mydataA,
306 submatrix_size,submatrix_size,
311 gras_msg_wait(1200,"dataA", &from,&bA);
313 RETHROW0("Can't get a data message from row : %s");
315 INFO3("ROW: step(%d)<>myrow(%d). Receive data from %s",step,myrow,
316 gras_socket_peer_name(from));
318 xbt_matrix_double_addmult(bA,bB,bC);
322 /* send Result to master */
324 result.linepos=myline;
328 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 gras_socket_close(master);
343 gras_socket_close(from);
344 /* FIXME: some are said to be unknown
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[]) {
356 gras_socket_t mysock;
357 gras_socket_t master = NULL;
360 /* Init the GRAS's infrastructure */
361 gras_init(&argc, argv);
364 /* Register the known messages and my callback */
366 gras_cb_register("pmm_slave",pmm_worker_cb);
368 /* Create the connexions */
369 mysock = gras_socket_server_range(3000,9999,0,0);
370 INFO1("Sensor starting (on port %d)",gras_os_myport());
374 master = gras_socket_client_from_string(argv[1]);
377 if (e.category != system_error)
384 /* Join and run the group */
385 amok_pm_group_join(master,"pmm");
386 amok_pm_mainloop(600);
389 gras_socket_close(mysock);
390 // gras_socket_close(master); Unknown