Accession Number:

ADA347226

Title:

IMPACT: Integrated Multi-Level Performance Framework for Scalable Systems. Phase 1.

Descriptive Note:

Final rept. 8 Oct 97-8 Jun 98

Corporate Author:

SCALABLE SYSTEM SOLUTIONS LOS ANGELES CA

Personal Author(s):

Report Date:

1998-06-15

Pagination or Media Count:

61.0

Abstract:

The current state of art in performance technology does not facilitate detailed performance evaluation of complex, large scale systems. The aim of the Phase 1 effort was to demonstrate the feasibility of an Integrated Multi-Level Performance Framework for Complex Systems IMPACT for simulation of a parallel database system. As described in this report, the Phase 1 effort resulted in the design and an initial implementation of an object oriented scalable simulator. A prototype model to simulate a parallel database machine was developed and the model was used to simulate the performance of a database running on a shared nothing architecture. The model was developed using three different simulators CSIM, a commercial sequential simulator, 3 PARSEC, an existing C based parallel discrete event simulator, and COMPOSE, a new C library for parallel discrete event simulation. The parallel models were validated against the functionally equivalent CSIM model and were found to produce identical outputs. The performance of the parallel models was subsequently studied for different workloads and substantial performance improvements were observed from parallel execution of the model. Based on the positive results obtained from the Phase 1 study, we have initiated development of a state of the art performance modeling tool for scalable data base systems using the COMPOSE parallel object oriented simulator.

Subject Categories:

  • Computer Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE