Accession Number : ADA325158

Title :   Synthetic-Perturbation Tuning of MIMD Programs,

Corporate Author : NATIONAL INST OF STANDARDS AND TECHNOLOGY GAITHERSBURG MD

Personal Author(s) : Lyon, Gordon ; Snelick, Robert ; Kacker, Raghu

PDF Url : ADA325158

Report Date : FEB 1993

Pagination or Media Count : 32

Abstract : Synthetic-perturbation tuning--SPT--is a novel technique for assaying and improving the performance of programs on MIMD systems. Conceptually, SPT brings the powerful, mathematical perspective of statistically designed experiments (DEX) to the interdependent, sometimes refractory aspects of MIMD program tuning. Practically, SPT provides a needed reconfiguration mechanism via synthetic delays for what otherwise would be ad hoc, hand-tailored program setups for DEX. Overall, the technique identifies bottlenecks in programs directly as quantitative effects upon response time. SPT works on programs for both shared and distributed memory and it scales well with increasing system size.

Descriptors :   *PARALLEL PROCESSING, DISTRIBUTED DATA PROCESSING, MEMORY DEVICES, TUNING, TIME SHARING, FACTORIAL DESIGN.

Subject Categories : Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE