Application used in this video
The sample application used in this video performs matrix multiplication by the following calculation:
C = A x B + C
A, B and C are double-precision square matrices.
The algorithm is written in parallel using MPI, and includes 1 master process and 7 worker processes.
The master process initializes matrices A, B and C.
The master process sends the entire matrix B, along with slices of A and C, to the worker processes.
The master and worker processes perform the matrix multiplication function, and each process computes a slice of C.
The master process retrieves all slices of C and reconstitutes the results into matrix C.
The matrix multiplication process includes the master process (green) and the worker processes (orange and blue).
|Slave process 1|
|Slave process n|