-/* pmm - paralel matrix multiplication "double diffusion" */
+/* $Id$ */
+/* pmm - parallel matrix multiplication "double diffusion" */
-/* Copyright (c) 2006- Ahmed Harbaoui. All rights reserved. */
+/* Copyright (c) 2006 Ahmed Harbaoui. */
+/* Copyright (c) 2006 Martin Quinson. */
+/* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "gras.h"
-#define MATRIX_SIZE 3
+#include "xbt/matrix.h"
+#include "amok/peermanagement.h"
-XBT_LOG_NEW_DEFAULT_CATEGORY(pmm,"Messages specific to this example");
+#define PROC_MATRIX_SIZE 3
+#define NEIGHBOR_COUNT PROC_MATRIX_SIZE - 1
+#define SLAVE_COUNT (PROC_MATRIX_SIZE*PROC_MATRIX_SIZE)
-GRAS_DEFINE_TYPE(s_matrix,struct s_matrix {
- int rows;
- int cols;
- double *data GRAS_ANNOTE(size, rows*cols);
-};)
-typedef struct s_matrix matrix_t;
+#define DATA_MATRIX_SIZE 18
+const int submatrix_size = DATA_MATRIX_SIZE/PROC_MATRIX_SIZE;
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(pmm,"Parallel Matrix Multiplication");
/* struct for recovering results */
GRAS_DEFINE_TYPE(s_result,struct s_result {
- int i;
- int j;
- double value;
+ int linepos;
+ int rowpos;
+ xbt_matrix_t C GRAS_ANNOTE(subtype,double);
});
typedef struct s_result result_t;
-/* struct to send initial data to sensor */
-GRAS_DEFINE_TYPE(s_init_data,struct s_init_data {
- int myrow;
- int mycol;
- double a;
- double b;
+/* struct to send initial data to slave */
+GRAS_DEFINE_TYPE(s_pmm_assignment,struct s_pmm_assignment {
+ int linepos;
+ int rowpos;
+ xbt_peer_t line[NEIGHBOR_COUNT];
+ xbt_peer_t row[NEIGHBOR_COUNT];
+ xbt_matrix_t A GRAS_ANNOTE(subtype,double);
+ xbt_matrix_t B GRAS_ANNOTE(subtype,double);
});
-typedef struct s_init_data init_data_t;
+typedef struct s_pmm_assignment s_pmm_assignment_t;
/* register messages which may be sent (common to client and server) */
static void register_messages(void) {
- gras_datadesc_type_t result_type;
- gras_datadesc_type_t init_data_type;
- result_type=gras_datadesc_by_symbol(s_result);
- init_data_type=gras_datadesc_by_symbol(s_init_data);
+ gras_datadesc_type_t result_type;
+ gras_datadesc_type_t pmm_assignment_type;
+
+ gras_datadesc_set_const("NEIGHBOR_COUNT",NEIGHBOR_COUNT);
+ result_type=gras_datadesc_by_symbol(s_result);
+ pmm_assignment_type=gras_datadesc_by_symbol(s_pmm_assignment);
- gras_msgtype_declare("result", result_type);
- gras_msgtype_declare("init_data", init_data_type);
+ /* receive a final result from slave */
+ gras_msgtype_declare("result", result_type);
+
+ /* send from master to slave to assign a position and some data */
+ gras_msgtype_declare("pmm_slave", pmm_assignment_type);
- gras_msgtype_declare("ask_result", gras_datadesc_by_name("int"));
- gras_msgtype_declare("step", gras_datadesc_by_name("int"));
- gras_msgtype_declare("step_ack", gras_datadesc_by_name("int"));
- gras_msgtype_declare("data", gras_datadesc_by_name("int"));
+ /* send data between slaves */
+ gras_msgtype_declare("dataA", gras_datadesc_matrix(gras_datadesc_by_name("double"),NULL));
+ gras_msgtype_declare("dataB", gras_datadesc_matrix(gras_datadesc_by_name("double"),NULL));
}
/* Function prototypes */
-int maestro (int argc,char *argv[]);
-int sensor (int argc,char *argv[]);
+int slave (int argc,char *argv[]);
+int master (int argc,char *argv[]);
+
/* **********************************************************************
- * Maestro code
+ * master code
* **********************************************************************/
/* Global private data */
typedef struct {
- int nbr_col,nbr_row;
+ int nbr_row,nbr_line;
int remaining_step;
int remaining_ack;
-} maestro_data_t;
-
-
-static int maestro_cb_data_handler(gras_msg_cb_ctx_t ctx, void *payload) {
+} master_data_t;
- xbt_ex_t e;
- /* 1. Get the payload into the msg variable */
- int msg=*(int*)payload_data;
-
- gras_socket_t expeditor = gras_msg_cb_ctx_from(ctx);
-
- /*code of callback */
-
- /* 8. Make sure we don't leak sockets */
- gras_socket_close(expeditor);
-
- /* 9. Tell GRAS that we consummed this message */
- return 1;
-} /* end_of_maestro_cb_data_handler */
-/*** Function initilaze matrixs ***/
+int master (int argc,char *argv[]) {
-static void initmatrix(matrix_t *X){
- int i;
- for(i=0 ; i<X.rows*X.cols; i++)
- X.data[i]=1.0;//1.0*rand()/(RAND_MAX+1.0);
-
-} /* end_of_initmatrixs */
-
-/*** Function Scatter Sequentiel ***/
-
-static void scatter(){
-
-}/* end_of_Scatter */
-
-/*** Function: Scatter // ***/
+ int i;
-static void scatter_parl(){
+ xbt_matrix_t A,B,C;
+ result_t result;
-}/* end_of_Scatter // */
+ gras_socket_t from;
-/*** Function: multiplication ***/
+ xbt_dynar_t peers; /* group of slaves */
+ xbt_peer_t grid[SLAVE_COUNT]; /* The slaves as an array */
+ gras_socket_t socket[SLAVE_COUNT]; /* sockets for brodcast to slaves */
-static void multiplication(){
-
- int step,i;
+ /* Init the GRAS's infrastructure */
+ gras_init(&argc, argv);
+ amok_pm_init();
+ register_messages();
+
+ /* Initialize data matrices */
+ A = xbt_matrix_double_new_id(DATA_MATRIX_SIZE,DATA_MATRIX_SIZE);
+ B = xbt_matrix_double_new_seq(DATA_MATRIX_SIZE,DATA_MATRIX_SIZE);
+ C = xbt_matrix_double_new_zeros(DATA_MATRIX_SIZE,DATA_MATRIX_SIZE);
- for (step=1; step <= MATRIX_SIZE; step++){
- for (i=0; i< nbr_sensor; i++){
- TRY {
- gras_msg_send(proc[(i/3)+1][(i%3)+1], gras_msgtype_by_name("step"), &step); /* initialize Mycol, MyRow, mydataA,mydataB*/
-
- myrow,mycol,mydataA,mydataB
- } CATCH(e) {
- gras_socket_close(proc[(i/3)+1][(i%3)+1]);
- RETHROW0("Unable to send the msg : %s");
- }
- }
- /* wait for computing and sensor messages exchange */
- TRY {
- gras_msg_wait(600,gras_msgtype_by_name("init_data"),&from,&mydata);
- } CATCH(e) {
- RETHROW0("I Can't get a init Data message from Maestro : %s");
- }
+ /* Create the connexions */
+ xbt_assert0(argc>1, "Usage: master <port>");
+ gras_socket_server(atoi(argv[1]));
+ peers=amok_pm_group_new("pmm");
+
+ /* friends, we're ready. Come and play */
+ INFO0("Wait for peers for 5 sec");
+ gras_msg_handleall(5);
+ INFO1("Got %ld pals",xbt_dynar_length(peers));
+
+ for (i=0;
+ i<xbt_dynar_length(peers) && i<SLAVE_COUNT;
+ i++) {
+
+ xbt_dynar_get_cpy(peers,i,&grid[i]);
+ INFO2("Connecting to %s:%d.",grid[i]->name,grid[i]->port);
+ socket[i]=gras_socket_client(grid[i]->name,grid[i]->port);
+ INFO2("Connected to %s:%d.",grid[i]->name,grid[i]->port);
+ }
+ xbt_assert2(i==SLAVE_COUNT,
+ "Not enough slaves for this setting (got %d of %d). Change the deployment file",
+ i,SLAVE_COUNT);
+
+ /* Kill surnumerous slaves */
+ for (i=SLAVE_COUNT; i<xbt_dynar_length(peers); ) {
+ xbt_peer_t h;
+
+ xbt_dynar_remove_at(peers,i,&h);
+ INFO2("Too much slaves. Killing %s:%d", h->name, h->port);
+ amok_pm_kill_hp(h->name,h->port);
+ free(h);
}
-}/* end_of_multiplication */
-
-/*** Function: gather ***/
-
-static void gather(){
-
-}/* end_of_gather */
+ /* Assign job to slaves */
+ int row=0, line=0;
+ INFO0("XXXXXXXXXXXXXXXXXXXXXX begin Multiplication");
+ for(i=0 ; i<SLAVE_COUNT; i++){
+ s_pmm_assignment_t assignment;
+ int j,k;
-/*** Function: Display Matrix ***/
+ assignment.linepos=line; // assigned line
+ assignment.rowpos=row; // assigned row
-static void display(matrix_t X){
-
-int i,j,t=0;
-
- printf(" ");
- for(j=0;j<X.cols;j++)
- printf("%.3d ",j);
- printf("\n");
- printf(" __");
- for(j=0;j<X.cols;j++)
- printf("____");
- printf("_\n");
-
- for(i=0;i<X.rows;i++){
- printf("%.3d | ",i);
- for(j=0;j<X.cols;j++)
- printf("%.3g ",X.data[t++]);
- printf("|\n");
- }
- printf(" --");
- for(j=0;j<X.cols;j++)
- printf("----");
- printf("-\n");
-
-}/* end_of_display */
-
-int maestro (int argc,char *argv[]) {
-
-xbt_ex_t e;
-int i,ask_result,step;
-result_t result;
-matrix_t A,B,C;
-gras_socket_t from;
-result_t result;
-
- gras_socket_t socket[MATRIX_SIZE*MATRIX_SIZE]; /* sockets for brodcast to other sensor */
-
-
- /* Initialize Matrixs */
+ /* Neiborhood */
+ for (j=0,k=0; j<PROC_MATRIX_SIZE; j++) {
+ if (i != j*PROC_MATRIX_SIZE+(row)) {
+ assignment.row[k] = grid[ j*PROC_MATRIX_SIZE+(row) ] ;
+ k++;
+ }
+ }
+ for (j=0,k=0; j<PROC_MATRIX_SIZE; j++) {
+ if (i != (line)*PROC_MATRIX_SIZE+j) {
+ assignment.line[k] = grid[ (line)*PROC_MATRIX_SIZE+j ] ;
+ k++;
+ }
+ }
- A.rows=A.cols=MATRIX_SIZE;
- B.rows=B.cols=MATRIX_SIZE;
- C.rows=C.cols=MATRIX_SIZE;
-
- A.data=xbt_malloc0(sizeof(double)*MATRIX_SIZE*MATRIX_SIZE);
- B.data=xbt_malloc0(sizeof(double)*MATRIX_SIZE*MATRIX_SIZE);
- C.data=xbt_malloc0(sizeof(double)*MATRIX_SIZE*MATRIX_SIZE);
-
- initmatrix(&A);
- initmatrix(&B);
-
- /* Init the GRAS's infrastructure */
- gras_init(&argc, argv);
- /* Get arguments and create sockets */
- port=atoi(argv[1]);
- //scatter();multiplication();gather();
- //scatter_parl();
- /****************************** Init Data Send *********************************/
- int j=0;
- init_data_t mydata;
- for( i=2;i< argc;i+=3){
-
- TRY {
- socket[j]=gras_socket_client(argv[i],port);
-
- } CATCH(e) {
- RETHROW0("Unable to connect to the server: %s");
- }
- INFO2("Connected to %s:%d.",argv[i],port);
-
- mydata.myrow=argv[i+1]; // My rank of row
- mydata.mycol=argv[i+2]; // My rank of column
- mydata.a=A.data[(mydata.myrow-1)*MATRIX_SIZE+(mydata.mycol-1)];
- mydata.b=B.data[(mydata.myrow-1)*MATRIX_SIZE+(mydata.mycol-1)];;
+ assignment.A=xbt_matrix_new_sub(A,
+ submatrix_size,submatrix_size,
+ submatrix_size*line,submatrix_size*row,
+ NULL);
+ assignment.B=xbt_matrix_new_sub(B,
+ submatrix_size,submatrix_size,
+ submatrix_size*line,submatrix_size*row,
+ NULL);
+ row++;
+ if (row >= PROC_MATRIX_SIZE) {
+ row=0;
+ line++;
+ }
- gras_msg_send(socket[j],gras_msgtype_by_name("init_data"),&mydata);
- j++;
- } // end init Data Send
+ gras_msg_send(socket[i],gras_msgtype_by_name("pmm_slave"),&assignment);
+ xbt_matrix_free(assignment.A);
+ xbt_matrix_free(assignment.B);
+ }
- /******************************* multiplication ********************************/
+ /* (have a rest while the slave perform the multiplication) */
+
+ /* Retrieve the results */
+ for( i=0;i< SLAVE_COUNT;i++){
+ gras_msg_wait(6000,gras_msgtype_by_name("result"),&from,&result);
+ VERB2("%d slaves are done already. Waiting for %d",i+1, SLAVE_COUNT);
+ xbt_matrix_copy_values(C,result.C, submatrix_size,submatrix_size,
+ submatrix_size*result.linepos,
+ submatrix_size*result.rowpos,
+ 0,0,NULL);
+ xbt_matrix_free(result.C);
+ }
+ /* end of gather */
- for (step=1; step <= MATRIX_SIZE; step++){
- for (i=0; i< nbr_sensor; i++){
- TRY {
- gras_msg_send(socket[i], gras_msgtype_by_name("step"), &step); /* initialize Mycol, MyRow, mydataA,mydataB*/
-
- myrow,mycol,mydataA,mydataB
- } CATCH(e) {
- gras_socket_close(socket[i]);
- RETHROW0("Unable to send the msg : %s");
- }
- }
- INFO0("send to sensor to begin a next step");
- /* wait for computing and sensor messages exchange */
- i=0;
- while ( i< nbr_sensor){
- TRY {
- gras_msg_wait(600,gras_msgtype_by_name("step_ack"),&from,&mydata);
- } CATCH(e) {
- RETHROW0("I Can't get a init Data message from Maestro : %s");
- }
-
- i++;
- INFO1("Recive step ack from %s",gras_socket_peer_name(from));
- }
+ if (DATA_MATRIX_SIZE < 30) {
+ INFO0 ("The Result of Multiplication is :");
+ xbt_matrix_dump(C,"C:res",0,xbt_matrix_dump_display_double);
+ } else {
+ INFO1("Matrix size too big (%d>30) to be displayed here",DATA_MATRIX_SIZE);
+ }
- }
- /********************************* gather ***************************************/
-
- int ask_result=0;
- for( i=1;i< argc;i++){
- gras_msg_send(socket[i],gras_msgtype_by_name("ask_result"),&ask_result);
- }
- /* wait for results */
- for( i=1;i< argc;i++){
- gras_msg_wait(600,gras_msgtype_by_name("result"),&from,&result);
- C.data[(result.i-1)*MATRIX_SIZE+(result.j-1)]=result.value;
- }
- /* end of gather */
- display(C);
-
-return 0;
-} /* end_of_maestro */
+ amok_pm_group_shutdown ("pmm"); /* Ok, we're out of here */
+
+ for(i=0; i<SLAVE_COUNT; i++) {
+ gras_socket_close(socket[i]);
+ }
+
+ xbt_matrix_free(A);
+ xbt_matrix_free(B);
+ xbt_matrix_free(C);
+ gras_exit();
+ return 0;
+} /* end_of_master */
/* **********************************************************************
- * Sensor code
+ * slave code
* **********************************************************************/
-int sensor(int argc,char *argv[]) {
+static int pmm_worker_cb(gras_msg_cb_ctx_t ctx, void *payload) {
+ /* Recover my initialized Data and My Position*/
+ s_pmm_assignment_t assignment = *(s_pmm_assignment_t*)payload;
+ gras_socket_t master = gras_msg_cb_ctx_from(ctx);
xbt_ex_t e;
- static int bC=0;
- static int myrow,mycol;
- static double mydataA,mydataB;
- int bA,bB;
- int step,l,result_ack=0;
+ int step,l;
+ xbt_matrix_t bA=xbt_matrix_new(submatrix_size,submatrix_size,
+ sizeof(double),NULL);
+ xbt_matrix_t bB=xbt_matrix_new(submatrix_size,submatrix_size,
+ sizeof(double),NULL);
- gras_socket_t from; /* to recive from server for steps */
+ int myline,myrow;
+ xbt_matrix_t mydataA,mydataB;
+ xbt_matrix_t bC=xbt_matrix_double_new_zeros(submatrix_size,submatrix_size);
+
+ result_t result;
+
+ gras_socket_t from; /* to exchange data with my neighbor */
- gras_socket_t socket_row[2],socket_column[2]; /* sockets for brodcast to other sensor */
+ /* sockets for brodcast to other slave */
+ gras_socket_t socket_line[PROC_MATRIX_SIZE-1];
+ gras_socket_t socket_row[PROC_MATRIX_SIZE-1];
+ memset(socket_line,0,sizeof(socket_line));
+ memset(socket_row,0,sizeof(socket_row));
+
+ int i;
- /* Init the GRAS's infrastructure */
+ gras_os_sleep(1); /* wait for my pals */
- gras_init(&argc, argv);
+ myline = assignment.linepos;
+ myrow = assignment.rowpos;
+ mydataA = assignment.A;
+ mydataB = assignment.B;
- /* Get arguments and create sockets */
+ INFO2("Receive my pos (%d,%d) and assignment",myline,myrow);
- port=atoi(argv[1]);
- int i;
- for (i=1;i<MATRIX_SIZE;i++){
- socket_row[i]=gras_socket_client(argv[i+1],port);
- socket_column[i]=gras_socket_client(argv[i+MATRIX_SIZE],port);
+ /* Get my neighborhood from the assignment message (skipping myself) */
+ for (i=0 ; i<PROC_MATRIX_SIZE-1 ; i++){
+ socket_line[i]=gras_socket_client(assignment.line[i]->name,
+ assignment.line[i]->port);
+ xbt_peer_free(assignment.line[i]);
+ }
+ for (i=0 ; i<PROC_MATRIX_SIZE-1 ; i++){
+ socket_row[i]=gras_socket_client(assignment.row[i]->name,
+ assignment.row[i]->port);
+ xbt_peer_free(assignment.row[i]);
}
- INFO2("Launch %s (port=%d)",argv[0],port);
- /* Create my master socket */
- sock = gras_socket_server(port);
+ for (step=0; step<PROC_MATRIX_SIZE;step++) {
+
+ /* a line brodcast */
+ if(myline==step){
+ INFO3("LINE: step(%d) = Myline(%d). Broadcast my data (myport=%d).",
+ step,myline,gras_os_myport());
+ for (l=0;l < PROC_MATRIX_SIZE-1 ;l++) {
+ INFO2("LINE: Send to %s:%d",
+ gras_socket_peer_name(socket_row[l]),
+ gras_socket_peer_port(socket_row[l]));
+ gras_msg_send(socket_row[l],
+ gras_msgtype_by_name("dataB"),
+ &mydataB);
+ }
+
+
+ xbt_matrix_free(bB);
+ bB = xbt_matrix_new_sub(mydataB,
+ submatrix_size,submatrix_size,
+ 0,0,NULL);
+ } else {
+ TRY {
+ xbt_matrix_free(bB);
+ gras_msg_wait(600,gras_msgtype_by_name("dataB"),&from,&bB);
+ } CATCH(e) {
+ RETHROW0("Can't get a data message from line : %s");
+ }
+ INFO4("LINE: step(%d) <> Myline(%d). Receive data from %s:%d",step,myline,
+ gras_socket_peer_name(from), gras_socket_peer_port(from));
+ }
- /* Register the known messages */
- register_messages();
+ /* a row brodcast */
+ if (myrow==step) {
+ INFO2("ROW: step(%d)=myrow(%d). Broadcast my data",step,myrow);
+ for (l=1;l < PROC_MATRIX_SIZE ; l++) {
+ INFO2("ROW: Send to %s:%d",
+ gras_socket_peer_name(socket_line[l-1]),
+ gras_socket_peer_port(socket_line[l-1]));
+ gras_msg_send(socket_line[l-1],gras_msgtype_by_name("dataA"), &mydataA);
+ }
+ xbt_matrix_free(bA);
+ bA = xbt_matrix_new_sub(mydataA,
+ submatrix_size,submatrix_size,
+ 0,0,NULL);
+ } else {
+ TRY {
+ xbt_matrix_free(bA);
+ gras_msg_wait(1200,gras_msgtype_by_name("dataA"), &from,&bA);
+ } CATCH(e) {
+ RETHROW0("Can't get a data message from row : %s");
+ }
+ INFO3("ROW: step(%d)<>myrow(%d). Receive data from %s",step,myrow,
+ gras_socket_peer_name(from));
+ }
+ xbt_matrix_double_addmult(bA,bB,bC);
- /* Recover my initialized Data and My Position*/
- init_data_t mydata;
+ };
+
+ /* send Result to master */
+ result.C=bC;
+ result.linepos=myline;
+ result.rowpos=myrow;
TRY {
- gras_msg_wait(600,gras_msgtype_by_name("init_data"),&from,&mydata);
+ gras_msg_send(master, gras_msgtype_by_name("result"),&result);
} CATCH(e) {
- RETHROW0("I Can't get a init Data message from Maestro : %s");
+ RETHROW0("Failed to send answer to server: %s");
}
- myrow=mydata.myrow;
- mycol=mydata.mycol;
- mydataA=mydata.a;
- mydataB=mydata.b;
+ INFO2(">>>>>>>> Result sent to %s:%d <<<<<<<<",
+ gras_socket_peer_name(master),gras_socket_peer_port(master));
+ /* Free the allocated resources, and shut GRAS down */
+
+ xbt_matrix_free(bA);
+ xbt_matrix_free(bB);
+ xbt_matrix_free(bC);
+
+ xbt_matrix_free(mydataA);
+ xbt_matrix_free(mydataB);
+ gras_socket_close(master);
+ gras_socket_close(from);
+ /* FIXME: some are said to be unknown
+ for (l=0; l < PROC_MATRIX_SIZE-1; l++) {
+ if (socket_line[l])
+ gras_socket_close(socket_line[l]);
+ if (socket_row[l])
+ gras_socket_close(socket_row[l]);
+ }*/
- INFO4("Recover MY POSITION (%d,%d) and MY INIT DATA ( A=%.3g | B=%.3g )",
- myrow,mycol,mydataA,mydataB);
-
-
- do { //repeat until compute Cb
- step=MATRIX_SIZE+1; // juste intilization for loop
+ return 1;
+}
- TRY {
- gras_msg_wait(600,gras_msgtype_by_name("step"),&from,&step);
- } CATCH(e) {
- RETHROW0("I Can't get a Next Step message from Maestro : %s");
- }
+int slave(int argc,char *argv[]) {
+ gras_socket_t mysock;
+ gras_socket_t master;
- /* Wait for sensors startup */
- gras_os_sleep(1);
-
- if (step < MATRIX_SIZE){
- /* a row brodcast */
- if(myrow==step){
- for (l=1;l < MATRIX_SIZE ;l++){
- gras_msg_send(socket_row[l], gras_msgtype_by_name("data"), &mydataB);
- bB=mydataB;
- }
- }
- else
- {
- TRY {
- gras_msg_wait(600,gras_msgtype_by_name("data"),
- &from,&bB);
- } CATCH(e) {
- RETHROW0("I Can't get a data message from row : %s");
- }
- }
- /* a column brodcast */
- if(mycol==step){
- for (l=1;l < MATRIX_SIZE ;l++){
- gras_msg_send(socket_column[l],gras_msgtype_by_name("data"), &mydataA);
- bA=mydataA;
- }
- }
- else
- {
- TRY {
- gras_msg_wait(600,gras_msgtype_by_name("data"),
- &from,&bA);
- } CATCH(e) {
- RETHROW0("I Can't get a data message from column : %s");
- }
- }
- bC+=bA*bB;
- }
- /* send a ack msg to Maestro */
-
- gras_msg_send(from,gras_msgtype_by_name("step_ack"),&step);
-
- INFO1("Send ack to maestro for to end %d th step",step);
-
- if(step==MATRIX_SIZE-1) break;
+ /* Init the GRAS's infrastructure */
+ gras_init(&argc, argv);
+ amok_pm_init();
- } while (step < MATRIX_SIZE);
- /* wait Message from maestro to send the result */
-
- result.value=bC;
- result.i=myrow;
- result.j=mycol;
-
- TRY {
- gras_msg_wait(600,gras_msgtype_by_name("ask_result"),
- &from,&result_ack);
- } CATCH(e) {
- RETHROW0("I Can't get a data message from row : %s");
- }
- /* 5. send Result to Maestro */
- TRY {
- gras_msg_send(from, gras_msgtype_by_name("result"),&result);
- } CATCH(e) {
- // gras_socket_close(from);
- RETHROW0("Failed to send PING to server: %s");
- }
- INFO3(">>>>>>>> Result: %d sent to %s:%d <<<<<<<<",
- bC,
- gras_socket_peer_name(from),gras_socket_peer_port(from));
- /* Free the allocated resources, and shut GRAS down */
- gras_socket_close(from);
- gras_exit();
- INFO0("Done.");
- return 0;
-} /* end_of_sensor */
\ No newline at end of file
+ /* Register the known messages and my callback */
+ register_messages();
+ gras_cb_register(gras_msgtype_by_name("pmm_slave"),pmm_worker_cb);
+
+ /* Create the connexions */
+ mysock = gras_socket_server_range(3000,9999,0,0);
+ gras_os_sleep(1); /* let the master get ready */
+ INFO1("Sensor starting (on port %d)",gras_os_myport());
+ master = gras_socket_client_from_string(argv[1]);
+
+ /* Join and run the group */
+ amok_pm_group_join(master,"pmm");
+ amok_pm_mainloop(600);
+
+ /* housekeeping */
+ gras_socket_close(mysock);
+ // gras_socket_close(master); Unknown
+ gras_exit();
+ return 0;
+} /* end_of_slave */
