1. Runtime support and compilation methods for user-specified data distributions
- Author
-
Ponnusamy, Ravi, Saltz, Joel, Choudhury, Alok, Hwang, Yuan-Shin, and Fox, Geoffrey
- Subjects
Computer Programming And Software - Abstract
This paper describes two new ideas by which an 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 use of program arrays to describe graph connectivity, spatial location of array elements, and computational load. The second mechanism is a simple conservative method that in many cases enables a compiler to recognize that it is possible to reuse previously computed information 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.
- Published
- 1993