Optimal Compilation of HPF Remappings (Extended Abstracts)

) Fabien Coelho Corinne Ancourt Centre de Recherche en Informatique, ' Ecole des mines de Paris, 35, rue Saint-Honor'e, 77305 Fontainebleau Cedex, France. Phone: +33 1 64 69 47 08. Fax: + 33 1 64 69 47 09. URL: http://www.cri.ensmp.fr/pips October 23, 1995 Abstract Applications with varying array access patterns require to dynamically change array mappings on distributed-memory parallel machines. Hpf (High Performance Fortran) provides such remappings, on data that can be replicated, explicitly through the realign and redistribute directives and implicitly at procedure calls and returns. However such features are left out of the hpf subset or of the currently discussed hpf kernel for efficiency reasons. This paper presents a new compilation technique to handle hpf remappings for message-passing parallel architectures. The first phase is global and removes all useless remappings that appear naturally in procedures. The code generated by the second phase takes advantage of replicat..