Recent vectorization and parallelization of ITPACKV
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A status report is given on recent work on the vectorization and parallelization of the ITPACKV 2C  software. This package has been modified for improved performance on vector supercomputers resulting in a new version called ITPACKV 2D  that includes wavefront techniques. The main reason for these changes was to obtain improved vector performance of several methods that did not vectorize in the previous version. Results are also presented on initial efforts at modifying this package to produce a parallel ITPACKV suitable for execution on shared-memory parallel computers with relatively small numbers of processors.
Key wordsiterative methods large sparse systems of linear equations numerical solution of partial differential equations parallelization polynomial acceleration procedures research-oriented software shared-memory parallel computers supercomputers vector computers vectorization AMS(MOS) subject classifications 65F10 65M10 68B99
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