Event handling

Detailed Description

Communicate and handle events across multiple processes.

A typical use case for the mpi::monitor class could be to monitor and communicate exceptions:

// initialize monitor
mpi::monitor monitor(world);
...
 
// loop as long as everything is fine
while (!monitor.event_on_any_rank()) {
  try {
     // do some work
     ...
  } catch (my_exception const &e) {
    // report an exception
    monitor.report_local_event();
  }
}
 
// finalize communications and check if the computation finished due to an exception
monitor.finalize_communications();
if (!monitor.event_on_any_rank()) {
   // do some clean up and maybe stop the program
   ...
}
 
// everything went smoothly
...

Classes
class	mpi::monitor
	Constructed on top of an MPI communicator, this class helps to monitor and communicate events across multiple processes. More...