Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site ames.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxl!ihnp4!zehntel!dual!ames!eugene From: eugene@ames.UUCP (Eugene Miya) Newsgroups: ba.general,net.arch Subject: NASA Ames Research Center Seminar Message-ID: <473@ames.UUCP> Date: Mon, 13-Aug-84 13:14:44 EDT Article-I.D.: ames.473 Posted: Mon Aug 13 13:14:44 1984 Date-Received: Tue, 14-Aug-84 02:45:33 EDT Organization: NASA-Ames Research Center, Mtn. View, CA Lines: 39 ][ Using the Massively Parallel Processor for CFD Applications John Bruno Computer Science Dept. University of California Santa Barbara, CA and Research Institute for Advanced Computer Science This report presents the results of an investigation into the feasibility of using the MPP for direct and large eddy simulation on the Navier-Stokes equations. A major part of this study has been devoted to the "implementation" of two of the standard numerical algorithms for CFD. These implementations were not run because the MPP delivered to NASA Goddard SFC does not have sufficient capacity. Instead, we designed detailed implementation plans and estimate time and space requirements of our algorithms on a suitably configured MPP. In addition we consider other issues related to practical implementation of these algorithms on MPP-like architectures: namely, adaptive grid generation, zonal boundary conditions, table lookup problem, and the software interface. Our performance estimates show that the architectural components of the MPP, the staging memory and the array unit, appear to be well suited to the numerical algorithms of CFD. This combined with the prospect of building a faster and larger MPP-like machines holds the promise of achieving sustained gigaflop rates that are required for numerical simulations like CFD. Wednesday, August 22, 1984, 9:30-10:30 AM Building 200, Room 213 (Committee Room) Foreign nationals must request permission to attend, preferably 1 week in advance. Please mail requests to: emiya@ames-vmsb.ARPA. Include country of origin, whether you have a green card, and be prepared to show passport and other forms of ID on the day of seminar.