[mpich-discuss] Implementation of MPI blocking Send

[Dave Goodell]

MPICH2 and its derivatives have been adapted to handle many different network types and methods of communication.  Some versions of MPICH2, such as MVAPICH2, use RDMA for internode communication.  Many communication techniques have been published in papers, but I don't know of any paper or document that discusses the communication methods in MPICH2 at a high level.  Perhaps someone else on the list does.

-Dave

On Mar 25, 2011, at 9:51 AM CDT, vaibhav dutt wrote:

> Thanks for the reply. Actually I am trying to understand the inter-node communication procedure in MPICH.
> Are there any documents/papers on it as I was not able to find one. Does MPICH use RDMA for inter node communication?
> 
> On Thu, Mar 24, 2011 at 5:28 PM, Dave Goodell <goodell at mcs.anl.gov> wrote:
> MPICH2 is a large, complicated code base.  Numerous tools have been developed over the years for navigating large, complicated codes; try grep, cscope, or ctags.
> 
> -Dave
> 
> On Mar 24, 2011, at 5:21 PM CDT, vaibhav dutt wrote:
> 
> > Hi all,
> >
> > I was trying to find out the implementation of a simple blocking send in MPICH for my research and it is given in a
> > file send.c. In that file, a routine MPID_Send is being used to send the message. But I was not able to find the implementation of
> > MPID_Send. Is the code for MPID_Send routine given in one of C++ files?
> >
> > Thanks
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> 
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