Synergy User Manual and Tutorial. - THE CORE MEMORY

Synergy User Manual and Tutorial
}
// Get host machine name
gethostname(host, sizeof(host));
// Get parents task ID
ptid = pvm_parent();
// Label first message as 1
msgtag = 1;
// Execute a blocking receive to wait for message from master
pvm_recv(ptid, msgtag);
// Put the received message in the buffer
pvm_upkstr(buf);
// Print the message to file
fprintf(fd, "Worker: From %x: %s\n", ptid, buf);
// Put reply message in buffer
sprintf(buf, "Hello master from %s", host);
// Initialize the send message operation
pvm_initsend(PvmDataDefault);
// Transfer the message to PVM storage
pvm_pkstr(buf);
// Send the message signal to master
pvm_send(ptid, msgtag);
// Close file
fclose(fd);
// Exit application
pvm_exit();
The worker waits for the initial message from the master, writes the message to a file,
sends a reply and terminates. The output on the master machine would resemble:
[c615111@owin ~/pvm ]>master
Master: ID is 0, name is owin
Master: Messages sent to 3 workers
Master: From 3: Hello master from saber
Master: From 1: Hello master from sarlac
Master: From 2: Hello master from owin
Master: Application is finished
All the workers output can be redirected to the master’s terminal by running the
application in PVM’s console, which can be started by typing:
[c615111@owin ~/pvm ]>pvm
71