HPF compiler, compiler directives, Fortran 90D
In this paper, we describe two new ideas by which HPF compiler can deal with irregular computations effectively. The first mechanism invokes a user specified mapping procedure via a set of compiler directives. The directives allow the user to use program arrays to describe graph connectivity, spatial location of army elements and computational load. The second is a simple conservative method that in many cases enables a compiler to recognize that it is possible to reuse previously computed results from inspectors (e.g. communication schedules, loop iteration partitions, information that associates off-processor data copies with on-processor buffer locations). We present performance results for these mechanisms from a Fortran 90D compiler implementation.
Ponnusamy, Ravi; Saltz, Joel; and Choudhary, Alok, "Runtime Compilation Techniques for Data Partitioning and Communication Schedule Reuse" (1993). Northeast Parallel Architecture Center. Paper 10.