* under the terms of the license (GNU LGPL) which comes with this package. */
/* This example demonstrates how to dynamically modify a graph of operations.
- *
- * Assuming we have two instances of a service placed on different hosts,
+ *
+ * Assuming we have two instances of a service placed on different hosts,
* we want to send data alternatively to thoses instances.
*
* We consider the following graph:
- *
+ *
* comm0 -> exec1 -> comm1
- * ↳-> exec2 ->comm2
- *
+ * ↳-> exec2 ->comm2
+ *
* With exec1 and exec2 on different hosts.
*/
-#include "simgrid/s4u.hpp"
#include "simgrid/plugins/operation.hpp"
+#include "simgrid/s4u.hpp"
XBT_LOG_NEW_DEFAULT_CATEGORY(operation_switch_host, "Messages specific for this operation example");
int main(int argc, char* argv[])
{
- simgrid::s4u::Engine e(&argc, argv);
- e.load_platform(argv[1]);
- simgrid::plugins::Operation::init();
-
- // Retrieve hosts
- auto tremblay = e.host_by_name("Tremblay");
- auto jupiter = e.host_by_name("Jupiter");
- auto fafard = e.host_by_name("Fafard");
+ simgrid::s4u::Engine e(&argc, argv);
+ e.load_platform(argv[1]);
+ simgrid::plugins::Operation::init();
- // Create operations
- auto comm0 = simgrid::plugins::CommOp::create("comm0",1e7,tremblay,jupiter);
- auto exec1 = simgrid::plugins::ExecOp::create("exec1",1e9,jupiter);
- auto exec2 = simgrid::plugins::ExecOp::create("exec2",1e9,fafard);
- auto comm1 = simgrid::plugins::CommOp::create("comm1",1e7,jupiter,tremblay);
- auto comm2 = simgrid::plugins::CommOp::create("comm2",1e7,fafard,tremblay);
+ // Retrieve hosts
+ auto tremblay = e.host_by_name("Tremblay");
+ auto jupiter = e.host_by_name("Jupiter");
+ auto fafard = e.host_by_name("Fafard");
- // Create the initial graph by defining dependencies between operations
- comm0->add_successor(exec2);
- exec1->add_successor(comm1);
- exec2->add_successor(comm2);
+ // Create operations
+ auto comm0 = simgrid::plugins::CommOp::create("comm0", 1e7, tremblay, jupiter);
+ auto exec1 = simgrid::plugins::ExecOp::create("exec1", 1e9, jupiter);
+ auto exec2 = simgrid::plugins::ExecOp::create("exec2", 1e9, fafard);
+ auto comm1 = simgrid::plugins::CommOp::create("comm1", 1e7, jupiter, tremblay);
+ auto comm2 = simgrid::plugins::CommOp::create("comm2", 1e7, fafard, tremblay);
- // Add a function to be called when operations end for log purpose
- std::vector<simgrid::plugins::OperationPtr> v =
- {comm0,exec1,exec2,comm1,comm2};
- for (auto op : v)
- op->on_end([](simgrid::plugins::Operation* op) {
- XBT_INFO("Operation %s finished (%d)",op->get_name().c_str(), op->get_count());
- });
+ // Create the initial graph by defining dependencies between operations
+ comm0->add_successor(exec2);
+ exec1->add_successor(comm1);
+ exec2->add_successor(comm2);
- // Add a function to be called before each executions of comm0
- // This function modifies the graph of operations by adding or removing
- // successors to comm0
- int count = 0;
- comm0->on_start([&](simgrid::plugins::Operation* op) {
- if (count % 2 == 0) {
- comm0->set_destination(jupiter);
- comm0->add_successor(exec1);
- comm0->remove_successor(exec2);
- }
- else {
- comm0->set_destination(fafard);
- comm0->add_successor(exec2);
- comm0->remove_successor(exec1);
- }
- count++;
+ // Add a function to be called when operations end for log purpose
+ std::vector<simgrid::plugins::OperationPtr> v = {comm0, exec1, exec2, comm1, comm2};
+ for (auto op : v)
+ op->on_end([](simgrid::plugins::Operation* op) {
+ XBT_INFO("Operation %s finished (%d)", op->get_name().c_str(), op->get_count());
});
- // Enqueue four executions for operation comm0
- comm0->enqueue_execs(4);
+ // Add a function to be called before each executions of comm0
+ // This function modifies the graph of operations by adding or removing
+ // successors to comm0
+ int count = 0;
+ comm0->on_start([&](simgrid::plugins::Operation* op) {
+ if (count % 2 == 0) {
+ comm0->set_destination(jupiter);
+ comm0->add_successor(exec1);
+ comm0->remove_successor(exec2);
+ } else {
+ comm0->set_destination(fafard);
+ comm0->add_successor(exec2);
+ comm0->remove_successor(exec1);
+ }
+ count++;
+ });
+
+ // Enqueue four executions for operation comm0
+ comm0->enqueue_execs(4);
- // Start the simulation
- e.run();
- return 0;
+ // Start the simulation
+ e.run();
+ return 0;
}
