Showing papers on "Benchmark (computing) published in 1978"

Performance evaluation of multiple processor systems.

Abstract: : Technological trends in semiconductor and micro-processor development are clearly leading towards the production of a computer on a chip. In the near future such a computer module will include the equivalent of today's mini-computer with some memory. Connecting many computer-modules together will probably be a cost-effective way to build high performance computer systems. This thesis investigates and contrasts the performance of two multiple computer-module structures: a multiprocessor with shared memory and a local computer network in which all communication is via messages. Results are derived both from running benchmark applications and from performance models. Very little knowledge and experience has been gained on the performance of actual multiple processor applications. To investigate the problems and potential of these computer-module structures, a multiple processor system -- Cm** -- has been built. Firmware changes enable the emulation of both an efficient multiprocessor and a local computer network. Experiments were conducted on both types of structures to obtain performance information. Out practical methodology includes measurement of performance parameters using a set of benchmark application programs executing on Cm**, and performance models that were derived and validated - using the measurement results - and then applied for the performance investigation.

Sparse matrix calculations using an array processor

Abstract: This paper describes the applicability of AP-120B/190L array processors for solving large systems of simultaneous linear equations using sparse matrix techniques. These techniques are used in such diverse fields as structural analysis, chemical engineering, electric power network analysis, computer-aided network design, and physics. Several sparse matrix benchmark programs which have been written for the AP-120B/190L are described. Results of these programs are presented for various hardware configurations. Finally, the performance on sparse matrix problems of the AP-120B/190L is compared to that of large vector machines.

On MPS evaluation and gunslinging

Abstract: This note responds to two recent items in the SIGMAP Bulletin:•December '77: "Benchmark Test of MPSX/370 vs. MPSIII" by Patrick G. Falk•April '78: "User Evaluation of MPSX/370 - SHARE 49, Washington, D.C." August 22, 1977 by Patrick G. Falk and James J. TumbuschBoth deal with essentially the same set of data and test results.