Matrix multiplication with ring rotation

Teacher in charge : Fabrice Huet - [email protected]

Requirements

You need :

• gcc
• openMP
• open-mpi

Building

To build this project you need to run the following command:

mpicc mult-matrix-ring-rotation.c -o main -Wall -lm -fopenmp

Executing

To execute this project:

mpirun -np N ./main example/A example/B

Where N is the number of machines.

Executing on MacOS

If you run the program on mac and you get this error :

--------------------------------------------------------------------------
There are not enough slots available in the system to satisfy the N slots
that were requested by the application:
  ./main

Either request fewer slots for your application, or make more slots available
for use.
--------------------------------------------------------------------------

Add --oversubscribe to the command line :

mpirun --oversubscribe -np N ./main example/A example/B