A Survey
of MPI Implementations
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One of the most important aspects of the usability of an MPI
implementation is how well MPI applications are integrated into the
environment. Some of the important issues are:
- Is the operating system or some other
system software aware of a parallel application as a distinct entity, rather
than as a collection of unrelated serial processes?
- Does the implementation provide flexibility in handling standard
input and output, such as optional broadcasting of stdin and
per-process labeling of stdout. Is standard output available,
without excessive buffering, from all processes?
- Is process management robust? Is a terminal interrupt propagated
to all processes in an MPI application? Can a parallel application
leave unkilled ``orphaned'' processes that must be detected and killed
off manually?
In answering these questions, it is often difficult to separate the MPI
implementation from the parallel environment. This review tries to keep
the focus on MPI itself.
Copyright © 1996
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