Re: [OMPI users] UDP like messaging with MPI

2011-11-21 Thread Jeremiah Willcock
On Mon, 21 Nov 2011, Mudassar Majeed wrote: Thank you for your answer. Actually, I used the term UDP to show the non-connection oriented messaging. TCP creates connection between two parties (who communicate) but in UDP a message can be sent to any IP/port where a process/thread is listening

Re: [OMPI users] UDP like messaging with MPI

2011-11-21 Thread Mudassar Majeed
en MPI Users <us...@open-mpi.org> Cc: "li...@razik.name" <li...@razik.name> Sent: Monday, November 21, 2011 6:07 PM Subject: Re: [OMPI users] UDP like messaging with MPI MPI defines only reliable communications -- it's not quite the same thing as UDP.  Hence, if you send

Re: [OMPI users] UDP like messaging with MPI

2011-11-21 Thread Jeff Squyres
MPI defines only reliable communications -- it's not quite the same thing as UDP. Hence, if you send something, it is guaranteed to be able to be received. UDP may drop packets whenever it feels like it (e.g., when it is out of resources). Most MPI implementations will do some form of

Re: [OMPI users] UDP like messaging with MPI

2011-11-19 Thread Lukas Razik
Hi! >I know about tnıs functıons, they special requirements  like the mpi_irecv >call should be made in every process. My processes should not look for >messages or implicitly receive them. I understand. But then I think your UDP comparison is wrong - whatever... :) > But messages

Re: [OMPI users] UDP like messaging with MPI

2011-11-19 Thread Mudassar Majeed
I know about tnıs functıons, they special requirements  like the mpi_irecv call should be made in every process. My processes should not look for messages or implicitly receive them. But messages shuddering go into their msg queues and retrieved when needed. Just like udp communication.