Co-array Fortran performance and potential: An NPB experimental study (2003)
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| Venue: | In Proc. of the 16th Intl. Workshop on Languages and Compilers for Parallel Computing, number 2958 in LNCS |
| Citations: | 26 - 7 self |
BibTeX
@INPROCEEDINGS{Coarfa03co-arrayfortran,
author = {Cristian Coarfa and Yuri Dotsenko and Jason Eckhardt and John Mellor-crummey},
title = {Co-array Fortran performance and potential: An NPB experimental study},
booktitle = {In Proc. of the 16th Intl. Workshop on Languages and Compilers for Parallel Computing, number 2958 in LNCS},
year = {2003},
pages = {2--4},
publisher = {Springer-Verlag}
}
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Abstract
Abstract. Co-array Fortran (CAF) is an emerging model for scalable, global address space parallel programming that consists of a small set of extensions to the Fortran 90 programming language. Compared to MPI, the widely-used messagepassing programming model, CAF’s global address space programming model simplifies the development of single-program-multiple-data parallel programs by shifting the burden for choreographing and optimizing communication from developers to compilers. This paper describes an open-source, portable, and retargetable CAF compiler under development at Rice University that is well-suited for today’s high-performance clusters. Our compiler translates CAF into Fortran 90 plus calls to one-sided communication primitives. Preliminary experiments comparing CAF and MPI versions of several of the NAS parallel benchmarks on an Itanium 2 cluster with a Myrinet 2000 interconnect show that our CAF compiler delivers performance that is roughly equal to or, in many cases, better than that of programs parallelized using MPI, even though support for global optimization of communication has not yet been implemented in our compiler. 1
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