Charm++ parallel programming system

[Evghenii Gaburov <e-gaburov AT northwestern.edu>]

Hi All,

I have some misunderstanding upon the order in which the messages arrive. I 
read, that messages by default obey FIFO order

So, does the following code

"
void myClass::do_work()
{
  /* do some work first */
  for (int i = 0; i < nsend; i++)   
   myClass[remoteIndex[i]].recv(results[i]);                       /* send 
data to remote chares */
  contribute(0, 0, CkReduction::concat, CkCallback(do_work_complete(), 
thisProxy));   /* barrier */
}

void myClass::recv(myResults remote_result) {  store_remote_result; }
void myClass::do_work_complete()            { process arrived remote_results; 
}
"

guarantees that myClass::recv(..) methods will be executed first (because 
they were called first),
and only afterwards a reduction part will call myClass::do_work_complete() 
(because it is called second). 
This order is required to make sure that when do_work_complete is only 
invoked when *all* remote data has arrived.

Thanks!

Cheers,
  Evghenii
--
Evghenii Gaburov, 
e-gaburov AT northwestern.edu