SVM Support in the Vienna Fortran Compiling System

Vienna Fortran, a machine-independent language extension to Fortran which allows the user to write programs for distributed-memory systems using global addresses, provides the forall-loop construct for specifying irregular computations that do not cause inter-iteration dependences. Compilers for distributed-memory systems generate code that is based on run-time analysis techniques and is only eecient if, in addition, aggressive compile-time optimizations are applied. Since these optimizations are diicult to perform we propose to generate shared virtual memory code instead that can beneet from appropriate operating system or hardware support. This paper presents the shared virtual memory code generation , compares both approaches and gives rst performance results.