WSSMP: Watson Symmetric Sparse Matrix Package - Users Manual: Version 2.3B

The Watson Symmetric Sparse Matrix Package, WSSMP, is a robust high
performance software package for solving large sparse symmetric positive
definite systems of linear equations on the IBM RS6000 work-stations and
IBM Scalable Parallel (SP) systems.
It uses a modified version of the multifrontal algorithm
for sparse Cholesky factorization and a highly scalable parallel
sparse Cholesky factorization algorithm.
The package also uses scalable parallel sparse triangular solvers
and a parallel version of a previously released package,
WGPP, for computing fill-reducing orderings.
The current release of WSSMP can perform any or all of the
following tasks: ordering, symbolic factorization, Cholesky
factorization, triangular solves, and iterative refinement.
An SMP version will be released in the future. The next version is also
expected to perform LDL^T factorization, in addition to LL^T
factorization, which is the only factorization option in the current version.
The functionality and the calling sequences of the serial and the parallel
versions are almost the same.

By: Anshul Gupta, Mahesh Joshi, Vipin Kumar

Published in: RC20923 in 1997


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