The NAS Parallel Benchmarks 2.0

We describe a set of implementations of the NAS Parallel Benchmarks based on Fortran 77 and the MPI message passing standard. These implementations, which are intended to be run with little or no tuning, approximate the performance a typical user can expect for a portable parallel program on a distributed memory computer. They complement rather than replace the original NAS Parallel Benchmarks. We also present two additions to the original pencil and paper specification. First, we define “class C” sizes of the benchmarks to better suit the current and next generation of supercomputers. Second, we introduce changes to the reporting requirements for NAS Parallel Benchmark results. NASA Ames Research Center, Moffett Field, CA, 94035-1000. MRJ, Inc. This work is supported through NASA Contract NAS 2-14303. MCAT, Inc. This work is supported through NASA Contract NAS 2-14109. Sterling Software, Palo Alto, California. This work is supported through NASA Contract NAS 2-13210.