| The MPI implementation of NPB 3.3 (NPB3.3-MPI) |
| -------------------------------------------------- |
| |
| For problem reports and suggestions on the implementation, |
| please contact: |
| |
| NAS Parallel Benchmark Team |
| npb@nas.nasa.gov |
| |
| http://www.nas.nasa.gov/Software/NPB |
| |
| |
| This directory contains the MPI implementation of the NAS |
| Parallel Benchmarks, Version 3.3 (NPB3.3-MPI). A brief |
| summary of the new features introduced in this version is |
| given below. |
| |
| For changes from different versions, see the Changes.log file |
| included in the upper directory of this distribution. |
| |
| For explanation of compilation and running of the benchmarks, |
| please refer to README.install. For a special note on DT, please |
| see the README file in the DT subdirectory. |
| This version includes additional timers in several benchmarks. |
| |
| |
| New features in NPB3.3-MPI: |
| * NPB3.3-MPI introduces a new problem size (class E) to seven of |
| the benchmarks (BT, SP, LU, CG, MG, FT, and EP). The version |
| also includes a new problem size (class D) for the IS benchmark, |
| which was not present in the previous releases. |
| |
| * The release is merged with the vector codes for the BT and LU |
| benchmarks, which can be selected with the VERSION=VEC option |
| during compilation. However, it should be noted that successful |
| vectorization highly depends on the compiler used. Some changes |
| to compiler directives for vectorization in the current codes |
| (see *_vec.f files) may be required. |
| |
| * New improvements to BTIO (BT with IO subtypes): |
| - added I/O stats (I/O timing, data size written, I/O data rate) |
| - added an option for interleaving reads between writes through |
| the inputbt.data file. Although the data file size would be |
| smaller as a result, the total amount of data written is still |
| the same. |
| |
