Learning by doing :: MPI -- Groups, Contexts, Communicators And Caching In MPI, Part 5

This video is part of the new series called "Learning by doing :: MPI" which serves as an introductory course on MPI (Message Passing Interface). In this video we talked about groups, contexts, communicators and caching in MPI! This topic corresponds to chapter 7 of the MPI standard v4.1. It is a lengthy chapter with a lot of information to digest. We followed the same pattern as for "Datatypes in MPI" by dividing a chapter into digestible ~25 mins long parts. In part 5 we continued our discussion with the C code example of MPI_Comm_split in inter-communicator scenario. After finishing that we mainly talked about MPI_Comm_split_type. This operations comes with the following split types available in MPI : MPI_COMM_TYPE_SHARED, MPI_COMM_TYPE_HW_GUIDED, MPI_COMM_TYPE_RESOURCE_GUIDED and MPI_COMM_TYPE_HW_UNGUIDED. We presented a simple C code example for correct usage of syntax and MPI_COMM_TYPE_SHARED as the splitting type.

All the necessary info you need for MPI standard can be downloaded from here : https://www.mpi-forum.org/docs/mpi-4....

If you want to download MPICH, please visit here : https://www.mpich.org/downloads/
* The latest version at the time of this video is mpich-4.2.2

Hope you learned something from this video. If you have further questions don't hesitate to comment down below. Have fun!