Path: utzoo!utgpu!watserv1!watmath!att!dptg!ulysses!andante!mit-eddie!snorkelwacker.mit.edu!apple!sun-barr!cs.utexas.edu!sdd.hp.com!elroy.jpl.nasa.gov!ncar!gatech!purdue!ccncsu!debussy.cs.colostate.edu!rro From: rro@debussy.cs.colostate.edu (Rod Oldehoeft) Newsgroups: comp.arch Subject: Re: IBM RS/6000 Message-ID: <11366@ccncsu.ColoState.EDU> Date: 24 Nov 90 17:11:55 GMT References: <2003@mountn.dec.com> <3300212@m.cs.uiuc.edu> Sender: news@ccncsu.ColoState.EDU Organization: Colorado State Computer Science Department Lines: 30 In article <3300212@m.cs.uiuc.edu> nazief@m.cs.uiuc.edu writes: > >People at Los Alamos ran some benchmarks on RS/6000 and compared their >performances with those obtained from Sun4, DEC-3100 and a couple of vector >machines. >The results were published in their tech. report # LA-11831-MS, "Los Alamos >Experiences with the IBM RISC SYSTEM/6000 Workstations". A similar report is in the proceedins of Supercomputing '90, just past: "Performance Evcaluation of the IBM RISC System/6000: Comparison of an Optimized Scalar Processor with Two Vector Processors" Margaret L. Simmons and Harvey J. Wasserman Computer Research Group Computing and Communications Division Los Alamos National Laboratory Los Alamos, NM 87545 ABSTRACT RISC System/6000 computers are workstations with a reduced instruction set processor recently developed by IBM. This report details the performance of the 6000-series computers as measured using a set of portable, standard-Fortran, computationally-intensive benchmark codes that represent the scientific workload at the Los Alamos National Laboratory. On all but three of our benchmark codes, the 40-ns RISC System was able to perform as well as a single Convex C-240 processor, a vector processor that also has a 40-ns clock cycle, and on these same codes, it performed as well as the FPS-500, a vector processor with a 30-ns clock cycle.