Co-Array collectives: refined semantics for co-array fortran

Authors:
Matthew J. Sottile;Craig E Rasmussen;Richard L. Graham
Affiliations:
Los Alamos National Laboratory, Los Alamos, NM;Los Alamos National Laboratory, Los Alamos, NM;Los Alamos National Laboratory, Los Alamos, NM
Venue:
ICCS'06 Proceedings of the 6th international conference on Computational Science - Volume Part II
Year:
2006

Citing 1
Cited 1

Co-array Fortran for parallel programming

ACM SIGPLAN Fortran Forum

Performance without pain = productivity: data layout and collective communication in UPC

Proceedings of the 13th ACM SIGPLAN Symposium on Principles and practice of parallel programming

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Abstract

Co-array notation provides a compact syntax for programming parallel programs. Co-array Fortran (CAF) introduced and implements this notation, and CAF is currently proposed as an extension to the Fortran language standard. We believe that co-array notation requires a revised semantic definition beyond that specified by CAF for both pragmatic reasons within Fortran and to make the notation attractive for incorporation into other programming languages. The revised semantics make the language model easier to understand and reduces the potential for programmer error. Furthermore, these revised semantics allow CAF to be extended to capture collective operations in co-array notation.