blas / blacs
The following can be read at Wikipedia:
Basic Linear Algebra Subprogram are standardized application programming interfaces for subroutines to perform basic linear algebra operations such as vector and matrix multiplication.
The BLACS (Basic Linear Algebra Communication Subprograms) project is an ongoing investigation whose purpose is to create a linear algebra oriented message passing interface that may be implemented efficiently and uniformly across a large range of distributed memory platforms.
Call the Fortran compiler with BLAS
Installations of BLAS/BLACS at ZIH