Abstract
AbstractThe lack of compatibility of High‐Performance Fortran (HPF) between vender implementations has been disheartening scientific application users so as to hinder the development of portable programs. Thus parallel computing is still unpopular in the computational science community, even though parallel programming is common to the computer science community. As users would like to run the same source code on parallel machines with different architectures as fast as possible, we have investigated the compatibility of source codes for Japanese HPF compilers (NEC, Fujitsu and Hitachi) with two real‐world applications: a 3D fluid code and a 2D particle code. We have found that the source‐level compatibility between Japanese HPF compilers is almost preserved, but more effort will be needed to sustain complete compatibility. We have also evaluated parallel performance and found that HPF can achieve good performance for the 3D fluid code with almost the same source code. For the 2D particle code, good results have also been obtained with a small number of processors, but some changes in the original source code and the addition of interface blocks is required. Copyright © 2002 John Wiley & Sons, Ltd.
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