XBT_LOG_NEW_DEFAULT_CATEGORY(msg_async_waitall, "Messages specific for this msg example");
-class sender {
- long messages_count;
- long receivers_count;
- double msg_size; /* in bytes */
+class Sender {
+ long messages_count; /* - number of tasks */
+ long receivers_count; /* - number of receivers */
+ double msg_size; /* - communication cost in bytes */
public:
- explicit sender(std::vector<std::string> args)
-{
- xbt_assert(args.size() == 4, "This function expects 4 parameters from the XML deployment file but got %zu",
- args.size());
- messages_count = std::stol(args[1]);
- msg_size = std::stod(args[2]);
- receivers_count = std::stol(args[3]);
-
-}
-void operator()()
-{
- std::vector<simgrid::s4u::CommPtr>* pending_comms = new std::vector<simgrid::s4u::CommPtr>();
+ explicit Sender(std::vector<std::string> args)
+ {
+ xbt_assert(args.size() == 4, "Expecting 3 parameters from the XML deployment file but got %zu", args.size());
+ messages_count = std::stol(args[1]);
+ msg_size = std::stod(args[2]);
+ receivers_count = std::stol(args[3]);
+ }
+ void operator()()
+ {
+ std::vector<simgrid::s4u::CommPtr> pending_comms;
+
+ /* Start dispatching all messages to receivers, in a round robin fashion */
+ for (int i = 0; i < messages_count; i++) {
+
+ std::string mboxName = std::string("receiver-") + std::to_string(i % receivers_count);
+ simgrid::s4u::MailboxPtr mbox = simgrid::s4u::Mailbox::byName(mboxName);
+ std::string msgName = std::string("Message ") + std::to_string(i);
+ char* payload = xbt_strdup(msgName.c_str()); // copy the data we send: 'msgName' is not a stable storage location
+
+ XBT_INFO("Send '%s' to '%s'", msgName.c_str(), mboxName.c_str());
+ /* Create a communication representing the ongoing communication */
+ simgrid::s4u::CommPtr comm = mbox->put_async((void*)payload, msg_size);
+ /* Add this comm to the vector of all known comms */
+ pending_comms.push_back(comm);
+ }
- /* Start dispatching all messages to receivers, in a round robin fashion */
- for (int i = 0; i < messages_count; i++) {
+ /* Start sending messages to let the workers know that they should stop */
+ for (int i = 0; i < receivers_count; i++) {
+ std::string mboxName = std::string("receiver-") + std::to_string(i % receivers_count);
+ simgrid::s4u::MailboxPtr mbox = simgrid::s4u::Mailbox::byName(mboxName);
+ char* payload = xbt_strdup("finalize"); // Make a copy of the data we will send
- std::string mboxName = std::string("receiver-") + std::to_string(i % receivers_count);
- simgrid::s4u::MailboxPtr mbox = simgrid::s4u::Mailbox::byName(mboxName);
- std::string msgName = std::string("Message ") + std::to_string(i);
- char* payload = xbt_strdup(msgName.c_str()); // copy the data we send: 'msgName' is not a stable storage location
+ simgrid::s4u::CommPtr comm = mbox->put_async((void*)payload, 0);
+ pending_comms.push_back(comm);
+ XBT_INFO("Send 'finalize' to 'receiver-%ld'", i % receivers_count);
+ }
+ XBT_INFO("Done dispatching all messages");
+
+ /* Now that all message exchanges were initiated, wait for their completion, in order of termination.
+ *
+ * This loop waits for first terminating message with wait_any() and remove it with erase(), until all comms are
+ * terminated
+ * Even in this simple example, the pending comms do not terminate in the exact same order of creation.
+ */
+ while (not pending_comms.empty()) {
+ int changed_pos = simgrid::s4u::Comm::wait_any(&pending_comms);
+ pending_comms.erase(pending_comms.begin() + changed_pos);
+ if (changed_pos != 0)
+ XBT_INFO("Remove the %dth pending comm: it terminated earlier than another comm that was initiated first.",
+ changed_pos);
+ }
- XBT_INFO("Send '%s' to '%s'", msgName.c_str(), mboxName.c_str());
- /* Create a communication representing the ongoing communication */
- simgrid::s4u::CommPtr comm = mbox->put_async((void*)payload, msg_size);
- /* Add this comm to the vector of all known comms */
- pending_comms->push_back(comm);
- }
- /* Start sending messages to let the workers know that they should stop */
- for (int i = 0; i < receivers_count; i++) {
- std::string mbox_name = std::string("receiver-") + std::to_string(i % receivers_count);
- simgrid::s4u::MailboxPtr mbox = simgrid::s4u::Mailbox::byName(mbox_name);
- char* payload = xbt_strdup("finalize"); // Make a copy of the data we will send
-
- simgrid::s4u::CommPtr comm = mbox->put_async((void*)payload, 0);
- pending_comms->push_back(comm);
- XBT_INFO("Send 'finalize' to 'receiver-%ld'", i % receivers_count);
+ XBT_INFO("Goodbye now!");
}
- XBT_INFO("Done dispatching all messages");
-
- /* Now that all message exchanges were initiated, wait for their completion
- *
- * This loop waits for first terminating message with wait_any() and remove it with erase(), until all comms are
- * terminated
- * Even in this simple example, the pending comms do not terminate in the exact same order of creation.
- * */
- for (int i = 0; i < messages_count + receivers_count; i++) {
- int changed_pos = simgrid::s4u::Comm::wait_any(pending_comms);
- pending_comms->erase(pending_comms->begin() + changed_pos);
- if (changed_pos != 0)
- XBT_INFO("Remove the %dth pending comm: it terminated earlier than another comm that was initiated first.",
- changed_pos);
- }
-
- XBT_INFO("Goodbye now!");
- delete pending_comms;
-}
};
-class receiver {
+/* Receiver actor expects 1 argument: its ID */
+class Receiver {
simgrid::s4u::MailboxPtr mbox;
public:
- explicit receiver(std::vector<std::string> args)
-{
- xbt_assert(args.size() == 2, "This function expects 2 parameters from the XML deployment file but got %zu",
- args.size());
- int id = xbt_str_parse_int(args[1].c_str(), "Any process of this example must have a numerical name, not %s");
- std::string mbox_name = std::string("receiver-") + std::to_string(id);
- mbox = simgrid::s4u::Mailbox::byName(mbox_name);
-}
-void operator()()
-{
- XBT_INFO("Wait for my first message");
- while (1) {
- char* received = static_cast<char*>(mbox->get());
- XBT_INFO("I got a '%s'.", received);
- if (std::strcmp(received, "finalize") == 0) { /* If it's a finalize message, we're done */
+ explicit Receiver(std::vector<std::string> args)
+ {
+ xbt_assert(args.size() == 2, "Expecting one parameter from the XML deployment file but got %zu", args.size());
+ std::string mboxName = std::string("receiver-") + args[1];
+ mbox = simgrid::s4u::Mailbox::byName(mboxName);
+ }
+ void operator()()
+ {
+ XBT_INFO("Wait for my first message");
+ while (1) {
+ char* received = static_cast<char*>(mbox->get());
+ XBT_INFO("I got a '%s'.", received);
+ if (std::strcmp(received, "finalize") == 0) { /* If it's a finalize message, we're done */
+ xbt_free(received);
+ break;
+ }
+ /* Otherwise receiving the message was all we were supposed to do */
xbt_free(received);
- break;
}
- /* Otherwise receiving the message was all we were supposed to do */
- xbt_free(received);
}
-}
};
int main(int argc, char *argv[])
xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n", argv[0]);
simgrid::s4u::Engine e(&argc, argv);
- e.registerFunction<sender>("sender");
- e.registerFunction<receiver>("receiver");
+ e.registerFunction<Sender>("sender");
+ e.registerFunction<Receiver>("receiver");
e.loadPlatform(argv[1]);
e.loadDeployment(argv[2]);
