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International Journal of High Performance Computing Applications
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A Composition Environment for MPI Programs

Narayan Desai

MATHEMATICS AND COMPUTER SCIENCE DIVISION, ARGONNE NATIONAL LABORATORY, ARGONNE, IL 60439, DESAI{at}MCS.ANL.GOV

Ewing Lusk

MATHEMATICS AND COMPUTER SCIENCE DIVISION, ARGONNE NATIONAL LABORATORY, ARGONNE, IL 60439

Rick Bradshaw

MATHEMATICS AND COMPUTER SCIENCE DIVISION, ARGONNE NATIONAL LABORATORY, ARGONNE, IL 60439

While MPI is the most common mechanism for expressing parallelism, MPI programs are not composable by using current MPI process managers or parallel shells. We introduce MPISH2, an MPI process manager analogous to serial Unix shells. It allows the composition of MPI and serial Unix utilities with one another to perform scalable tasks across large numbers of Unix clients. This paper discusses in detail issues of process management and parallel tool composition.

Key Words: MPI • process management • parallel shell • command language

International Journal of High Performance Computing Applications, Vol. 21, No. 2, 166-173 (2007)
DOI: 10.1177/1094342007077858
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