Re: [OMPI users] Technical details of various MPI APIs

2011-11-04 Thread Jeff Squyres
Sorry for the delay in replying. We don't have any formal documentation written up on this stuff, in part because we keep optimizing and changing the exact makeup of wire protocols, etc. If you have any specific questions, we can try to answer them for you. On Oct 21, 2011, at 2:45 PM, ramu

[OMPI users] Technical details of various MPI APIs

2011-10-21 Thread ramu
Hi, I am trying to explore more on technical details of MPI APIs defined in OpenMPI (for e.g., MPI_Init(), MPI_Barrier(), MPI_Send(), MPI_Recv(), MPI_Waitall(), MPI_Finalize() etc) when the MPI Processes are running on Infiniband cluster (OFED). I mean, what are the messages exchanged between MPI