document: Compatibility comparison and performance evaluation for Japanese HPF compilers using scientific applications The lack of compatibility of High-Performance Fortran -LRB- HPF -RRB- 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 -LRB- NEC , Fujitsu and Hitachi -RRB- 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
doc_bio_tags: O O O O O O O B B O O O O O O O O O O O B O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B B O O O O O O O O O O O O O O O O O O O B I O O O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: hpf portable programs parallel programming compilers parallel performance
abstractive_keyphrases: high-performance fortran source compatability