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PVM calls within the BLACS

PVM (Parallel Virtual Machine) is a software package that permits a heterogeneous collection of serial, parallel, and vector computers hooked together by a network to appear as one large computer.

BLACS (Basic Linear Algebra Communication Subroutines) is a software package to perform communication at the same level as the BLAS are for computation.

MPI -- Message Passing Interface

Standard for Message Passing

Slide 74 of SIAM Tutorial, Jack Dongarra UT/ORNL. (Updated 01/31/95)