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Diffstat (limited to 'benchmarks/hpl/pkg-descr')
| -rw-r--r-- | benchmarks/hpl/pkg-descr | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/benchmarks/hpl/pkg-descr b/benchmarks/hpl/pkg-descr new file mode 100644 index 000000000000..d1c43a126ff0 --- /dev/null +++ b/benchmarks/hpl/pkg-descr @@ -0,0 +1,21 @@ +HPL is a software package that solves a (random) dense linear system in double +precision (64 bits) arithmetic on distributed-memory computers. It can thus be +regarded as aportable as well as freely available implementation of the High +Performance Computing Linpack Benchmark. + +The algorithm used by HPL can be summarized by the following keywords: +Two-dimensional block-cyclic data distribution - Right-looking variant of the +LU factorization with row partial pivoting featuring multiple look-ahead +depths - Recursive panel factorization with pivot search and column broadcast +combined - Various virtual panel broadcast topologies - bandwidth reducing +swap-broadcast algorithm - backward substitution with look-ahead of depth 1. + +The HPL package provides a testing and timing program to quantify the accuracy +of the obtained solution as well as the time it took to compute it. The best +performance achievable by this software on your system depends on a large +variety of factors. Nonetheless, with some restrictive assumptions on the +interconnection network, the algorithm described here and its attached +implementation are scalable in the sense that their parallel efficiency is +maintained constant with respect to the per processor memory usage. + +WWW: http://www.netlib.org/benchmark/hpl/ |