MPI extensions

Collection of extensions to the Message Passing Interface (MPI) standard.

The following extensions to the MPI standard are provided in this collection:

Function	Description
MPI_Dims_weighted_create	Replacement of MPI_Dims_create that factorizes a number taking into account weights for the individual dimensions. This is usefull for creating an optimized Cartesian process topology.
MPI_Info_set_json	Convinience funtion that sets (key, value) pairs to an MPI info object from a JSON string

Getting Started

Prerequisites

The basic C version of the MPI extensions requires

• C99 compatible compiler
• MPI-3.1 compliant MPI library
• json-c library

For the tests:

• C++11 compatible compiler
• catch2 test framework

Installing

To build, test and install the mpi-extensions library execute

mkdir build && cd build
cmake ..
make
make test
make install

Contact

Christoph Niethammer [email protected]