3 This version of benchmarks IS, DT and EP contain special
4 tweaks to work with SMPI.
8 The MPI implementation of NPB 3.3 (NPB3.3-MPI)
9 --------------------------------------------------
11 For problem reports and suggestions on the implementation,
14 NAS Parallel Benchmark Team
17 http://www.nas.nasa.gov/Software/NPB
20 This directory contains the MPI implementation of the NAS
21 Parallel Benchmarks, Version 3.3 (NPB3.3-MPI). A brief
22 summary of the new features introduced in this version is
25 For changes from different versions, see the Changes.log file
26 included in the upper directory of this distribution.
28 For explanation of compilation and running of the benchmarks,
29 please refer to README.install. For a special note on DT, please
30 see the README file in the DT subdirectory.
33 New features in NPB3.3-MPI:
34 * NPB3.3-MPI introduces a new problem size (class E) to seven of
35 the benchmarks (BT, SP, LU, CG, MG, FT, and EP). The version
36 also includes a new problem size (class D) for the IS benchmark,
37 which was not present in the previous releases.
39 * The release is merged with the vector codes for the BT and LU
40 benchmarks, which can be selected with the VERSION=VEC option
41 during compilation. However, it should be noted that successful
42 vectorization highly depends on the compiler used. Some changes
43 to compiler directives for vectorization in the current codes
44 (see *_vec.f files) may be required.
46 * New improvements to BTIO (BT with IO subtypes):
47 - added I/O stats (I/O timing, data size written, I/O data rate)
48 - added an option for interleaving reads between writes through
49 the inputbt.data file. Although the data file size would be
50 smaller as a result, the total amount of data written is still