int main(int argc,char **argv) {
char path[25];
int i;
// Global data
int *comm_buffer = (int *) malloc(MAX_BUFFER_SIZE);
assert(comm_buffer != NULL);
// Set initial parameters
// int nb_clusters = atoi(argv[0]);
// int nb_threads = atoi(argv[1]);
int cluster_id = atoi(argv[2]);
// Initialize communication portals
// portal_t *write_portal = mppa_create_write_portal("/mppa/portal/128:3", comm_buffer, MAX_BUFFER_SIZE, 128);
sprintf(path, "/mppa/portal/%d:3", 128 + (cluster_id % 4));
portal_t *write_portal = mppa_create_write_portal(path, comm_buffer, MAX_BUFFER_SIZE, 128 + (cluster_id % 4));
// Initialize communication portal to receive messages from IO-node
sprintf(path, "/mppa/portal/%d:%d", cluster_id, 4 + cluster_id);
portal_t *read_portal = mppa_create_read_portal(path, comm_buffer, MAX_BUFFER_SIZE, 1, NULL);
barrier_t *global_barrier = mppa_create_slave_barrier (BARRIER_SYNC_MASTER, BARRIER_SYNC_SLAVE);
// ----------- MASTER -> SLAVE ---------------
mppa_barrier_wait(global_barrier);
// Block until receive the asynchronous write and prepare for next asynchronous writes
printf("Slave:%dWaitingForMasterWrite\n", cluster_id);
sleep(5);
mppa_async_read_wait_portal(read_portal);
printf("Slave:%dWaited!\n", cluster_id);
printf("Comm_bufferSlave:%d,%d\n", cluster_id, *comm_buffer);
*comm_buffer += cluster_id;
// ----------- SLAVE -> MASTER ---------------
mppa_barrier_wait(global_barrier);
// post asynchronous write
printf("Slave:%dWrote!\n", cluster_id);
mppa_async_write_portal(write_portal, comm_buffer, sizeof(int), cluster_id * MAX_BUFFER_SIZE);
// wait for the end of the transfer
mppa_async_write_wait_portal(write_portal);
printf("Slave:%dEndedTransfer\n", cluster_id);
mppa_close_barrier(global_barrier);
mppa_close_portal(write_portal);
mppa_close_portal(read_portal);
mppa_exit(0);
return 0;
}
int main(int argc,char **argv) {
char path[25];
int i;
// Global data
char *comm_buffer = (char *) malloc(MAX_BUFFER_SIZE);
assert(comm_buffer != NULL);
for(i = 0; i < MAX_BUFFER_SIZE; i++)
comm_buffer[i] = 0;
// Set initial parameters
int nb_clusters = atoi(argv[0]);
int nb_threads = atoi(argv[1]);
int cluster_id = atoi(argv[2]);
// Initialize global barrier
barrier_t *global_barrier = mppa_create_slave_barrier (BARRIER_SYNC_MASTER, BARRIER_SYNC_SLAVE);
// Initialize communication portals
sprintf(path, "/mppa/portal/%d:3", 128 + (cluster_id % 4));
portal_t *write_portal = mppa_create_write_portal(path, comm_buffer, MAX_BUFFER_SIZE, 128 + (cluster_id % 4));
// Initialize communication portal to receive messages from IO-node
sprintf(path, "/mppa/portal/%d:%d", cluster_id, 4 + cluster_id);
portal_t *read_portal = mppa_create_read_portal(path, comm_buffer, MAX_BUFFER_SIZE, 1, NULL);
mppa_barrier_wait(global_barrier);
LOG("Slave %d started\n", cluster_id);
int nb_exec;
for (nb_exec = 1; nb_exec <= NB_EXEC; nb_exec++) {
// ----------- MASTER -> SLAVE ---------------
for (i = 1; i <= MAX_BUFFER_SIZE; i *= 2) {
mppa_barrier_wait(global_barrier);
// Block until receive the asynchronous write and prepare for next asynchronous writes
mppa_async_read_wait_portal(read_portal);
}
// ----------- SLAVE -> MASTER ---------------
for (i = 1; i <= MAX_BUFFER_SIZE; i *= 2) {
mppa_barrier_wait(global_barrier);
// post asynchronous write
mppa_async_write_portal(write_portal, comm_buffer, i, cluster_id * MAX_BUFFER_SIZE);
// wait for the end of the transfer
mppa_async_write_wait_portal(write_portal);
}
}
mppa_close_barrier(global_barrier);
mppa_close_portal(write_portal);
mppa_close_portal(read_portal);
LOG("Slave %d finished\n", cluster_id);
mppa_exit(0);
return 0;
}
int main(int argc, char **argv) {
char path[25];
int i;
int nb_exec;
int cluster;
// Set initial parameters
int nb_clusters = atoi(argv[0]);
// int nb_threads = atoi(argv[1]);
int cluster_id = atoi(argv[2]);
int buffer_size = atoi(argv[3]);
// Global data
char *comm_buffer = (char *) malloc(buffer_size);
assert(comm_buffer != NULL);
for(i = 0; i < buffer_size; i++)
comm_buffer[i] = 0;
// Initialize global barrier
barrier_t *global_barrier = mppa_create_slave_barrier (BARRIER_SYNC_MASTER, BARRIER_SYNC_SLAVE);
// Initialize communication portals
sprintf(path, "/mppa/portal/%d:3", 128 + (cluster_id % 4));
portal_t *write_portal = mppa_create_write_portal(path, comm_buffer, buffer_size, 128 + (cluster_id % 4));
// Initialize communication portal to receive messages from IO-node
// The read_portal is configure so it expects a single message before unblocking
sprintf(path, "/mppa/portal/%d:%d", cluster_id, 4 + cluster_id);
portal_t *read_portal = mppa_create_read_portal(path, comm_buffer, buffer_size, 1, NULL);
LOG("Slave %d started\n", cluster_id);
for (nb_exec = 1; nb_exec <= NB_EXEC + 1; nb_exec++) {
for (cluster = 0; cluster < nb_clusters; cluster++) {
mppa_barrier_wait(global_barrier);
// ping: master -> slave
// Block until receive the asynchronous write and prepare for next asynchronous writes
// The cluster will wait for a single message before unblocking
if(cluster_id == cluster)
mppa_async_read_wait_portal(read_portal);
// pong: slave -> master
if(cluster_id == cluster) {
// post an asynchronous write
mppa_async_write_portal(write_portal, comm_buffer, i, cluster_id * buffer_size);
// wait for the end of the transfer
mppa_async_write_wait_portal(write_portal);
}
}
}
mppa_close_barrier(global_barrier);
mppa_close_portal(write_portal);
mppa_close_portal(read_portal);
LOG("Slave %d finished\n", cluster_id);
mppa_exit(0);
return 0;
}
