Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!uakari.primate.wisc.edu!uflorida!simulation From: simulation@uflorida.cis.ufl.edu (Moderator: Paul Fishwick) Newsgroups: comp.simulation Subject: SIMULATION DIGEST V14 N5 Message-ID: <22520@uflorida.cis.ufl.EDU> Date: 1 Mar 90 21:17:08 GMT Sender: fishwick@uflorida.cis.ufl.EDU Reply-To: simulation@uflorida.cis.ufl.edu Lines: 328 Approved: fishwick@uflorida.cis.ufl.edu Volume: 14, Issue: 5, Thu Mar 1 16:16:53 EST 1990 +----------------+ | TODAY'S TOPICS | +----------------+ (1) New CELLSIM Tool: V2.5 (2) CALL: Distributed Simulation Conference (3) Schematic Capture & Simulation (4) SYSTID Simulation Program * Moderator: Paul Fishwick, Univ. of Florida * Send topical mail to: simulation@bikini.cis.ufl.edu OR post to comp.simulation via USENET * Archives available via FTP to bikini.cis.ufl.edu (128.227.224.1). Login as 'ftp', use your last name as the password, change directory to pub/simdigest. * Simulation Tools available by doing above and changing the directory to pub/simdigest/tools. ----------------------------------------------------------------------------- Date: Tue, 27 Feb 90 15:48:48 MST From: cgl%cardinal@LANL.GOV (Chris Langton) To: cellusrs%cardinal@LANL.GOV Subject: Cellsim V2.5 available! [[NOTE: I have placed Cellsim V2.5 in our tools library for FTP access -PAF]] Greetings! If you received this, you are on our Cellsim distribution list. If the address in the mail-header is not the best one for you now, please let me know (and let me know both a better one and the one that this message found you at). If you are already on our cellsim user list, you do not have to send me a message upon obtaining Cellsim2.5, as I ask people to do in the announcement below. This is primarily so that we can add NEW people to the distribution list. **************************************** ANNOUNCING The Availability of Cellsim version 2.5 **************************************** by Chris Langton (cgl@lanl.gov) and Dave Hiebeler (hiebeler@heretic.lanl.gov) Version 2.5 of Cellsim is a SunView-based cellular automata simulator allowing interactive specification, editing, running, and analysis of 1- and 2-D CA's. It will run on Sun-3's, -4's, and Sparc stations, color or B&W. You can also use Cellsim to attach to a Connection Machine (CM2), and run the actual arrays on the CM, rather than on the Sun, using either the CM Frame Buffer or the Sun to display your images; you can do this either directly from a CM front-end, or remotely through the network. Cellsim on the CM allows you to use arbitrarily complex update-functions and "cells". With these recent enhancements, Cellsim is now becoming a tool flexible enough to use for the exploration of lattice-based systems in general. Besides running traditional CAs, you can also do things such as run computed functions of up to 256 states per cell, use floating-point values, or run large ensembles of 1-D systems. Running on the Connection Machine also give you the ability to do complex data-analysis on the fly, in parallel. Since version 2.0 was never "officially" released, the changes since version 1.5 are listed below: 1) 256-state "computed-function" rules can now be used, in addition to lookup-tables, on both the Sun and CM. This greatly expands the range of rules you can investigate. 2) You can now invoke Cellsim once, and change the neighborhood or number of states or image size, without having to call up a new Cellsim. Cellsim will also automatically switch into the proper neighborhood when you load a rule, or the proper image size when you load an image, unless you disable that feature. 3) The "general" random image-generation routine is much more general now. 4) You can create lookup-tables using "Lambda" or "Rho" parameters. The Lambda parameter is described in the article "Studying Artificial Life with Cellular Automata" by Chris Langton, in Physica 22D (1986), and more recently in "Computation at the Edge of Chaos: Phase Transitions and Emergent Computation" by C. Langton, in the proceedings of the "Emergent Computation" conference, to be published in a special issue of Physica D, 1990. 5) The middle mouse-button can be used to reselect the last item selected from any of the menus in the control-panel. 6) You can save images in Sun raster format. 7) The process of writing C code to generate lookup tables has been made easier. 8) Tilde-expansion is now performed on filenames. For example, you can now specify names such as "~/Images/xyz.64x" when loading or saving images, transition tables, colormaps, etc. 9) You can attach to a Connection Machine, and run the actual computations on the CM, using either the CM frame-buffer or the Sun to display the images. 10) A new "defaults" menu which lets you change some of the behaviors of Cellsim. 11) There are 5 user-definable "sequences" which you can "teach" series of button-presses or menu-item selections. So if there is some sequence of commands you routinely use, you can define a sequence to hold those commands, and call them up with the single press of a mouse-button. 12) You can now draw lines and circles in the array, from the "Draw" menu. (The "Draw" menu now contains the "random" image-generation routines). 13) The maximum possible image-size is now 512x512, instead of 256x256 **************************************** You can obtain Cellsim via anonymous FTP to cardinal.lanl.gov (128.165.96.120). Use the login "anonymous", and your e-mail address as password. Then, do the following commands: cd pub bin get cellsim_2.5.tar.Z That will transfer the tar file in binary mode. Once you've obtained the tar file, you should uncompress it and extract its contents as follows: uncompress cellsim_2.5.tar.Z tar xvf cellsim_2.5.tar Once you've done that, go to the "V2.5" directory, and follow instructions in the "README" and "Installation" files there. If you are unable to use FTP, then send either a 1/4" or 1/2" tape to: Chris Langton Theoretical Division T-13, MS B213 Los Alamos National Laboratory Los Alamos, NM 87545 USA If you send 1/2" tape, please specify the density to use. For those of you in Europe or Japan, we are sending copies of Cellsim to people who have agreed to serve as distribution sites there (tapes are on the way, guys!) We'll follow-up with information on how to get it from them, once they have received the tapes and verified that they have working copies. If you obtain Cellsim via FTP, please send Chris Langton (cgl@lanl.gov) a message, so that you can be placed on a distribution mailing-list for announcements of bug-fixes, new releases, announcement of new libraries, and so on. This is very important, so that you can be kept up-to-date with Cellsim as it evolves. Cheers! Chris Langton David Hiebeler ------------------------------ Date: Wed, 28 Feb 90 15:54:15 -0500 From: fujimoto@prism.gatech.edu ( R. M. Fujimoto) To: simulation@bikini.cis.ufl.edu Subject: Call for Papers, Distributed Simulation Conference Call For Papers Workshop on Parallel and Distributed Simulation (PADS) (Formerly, the Distributed Simulation Conference) Part of the 1991 Western Multiconference(*) January 21-23, 1991 Disneyland Hotel, Anaheim, California All papers related to the execution of continuous or discrete simulation programs on multiple processor computing systems are invited. Papers may deal with simulation on systems ranging from geographically distributed computing systems to tightly coupled multiprocessors and SIMD machines. Specific topics of interest include, but are not limited to: + Methods for distributed or parallel simulation, discrete, continuous, or combined + Concurrent simulation methods for particular classes of systems + Concurrent graphics and animation for simulation + Concurrent real time simulation (e.g., flight simulators, robot control) + Machine architectures for concurrent simulation + Programming constructs and languages for concurrent simulation + Performance evaluation methods and empirical studies of concurrent simulators Papers must contain original contributions that have not been previously reported in the literature. SIX copies of full papers are due JULY 31, 1990. Authors will be notified of acceptance by September 30, 1990. Camera ready copy is due October 31, 1990. Submissions with a cover letter stating the name, address, and phone number of each author should be sent to: Associate Program Chairman Richard M. Fujimoto School of Information and Computer Science Georgia Institute of Technology Atlanta, Georgia 30332 fujimoto@prism.gatech.edu, (404) 853-9384 A double blind review will be used where referees do not know the identity of authors, and vice versa. Authors must not include descriptive information in the paper that will identify themselves. Bibliographic references should be modified so as not to reveal the author's identity. Papers must be in English. Submissions will be accepted as either regular (8 pages) or short papers (4 pages), at the discretion of the program committee. Papers that are judged to be of an especially high quality will be forwarded to ACM Transactions on Modeling and Computer Simulation for consideration in a planned special issue on concurrent simulation. General Chairman Program Chairman David M. Nicol Vijay Madisetti Department of Computer Science School of Electrical Engineering College of William and Mary Georgia Institute of Technology Williamsburg, Virginia 23185 Atlanta, Georgia 30332 nicol@cs.wm.edu, (804) 221-3458 vijaykm@eedsp.gatech.edu, (404) 853-9830 Program Committee Marc Abrams, Virginia Tech Rassul Ayani, Royal Inst. of Tech. Rajive Bagrodia, UCLA Mary Bailey, University of Arizona David Jefferson, UCLA Douglas Jones, University of Iowa Jason Lin, University of Washington David Mizell, Boeing Computer Services Daniel Reed, University of Illinois Paul Reynolds, University of Virginia Robert Sargent, Syracuse University Lisa Sokol, MITRE Corp. Brian Unger, Jade Simulations David Wagner, University of Colorado (*) an application for co-sponsorship of this meeting with ACM and IEEE is currently pending. ------------------------------ To: comp-simulation@ucsd.edu Path: loral!miller From: loral!miller@ucsd.edu (BIG DAVE) Newsgroups: sci.electronics,comp.simulation Subject: Schematic Capture & Simulation. Date: 1 Mar 90 01:46:28 GMT Reply-To: loral!miller@ucsd.edu (BIG DAVE) Organization: Loral Instrumentation, San Diego A friend of mine is in need of some information on PC based schematic capture and logic simulation software. He is interest in the availability of public domain software he may use in teaching an intro to logic circuits class. I'm not too sure such a thing exists, but I'd appreciate any information as to the availability, accessability, and configuration requirements of such code. By the way, if no such thing exists, does anyone out there know of commercially available package which sells in the dirt cheap range ($100-$300) ?. Thanks in advance, BIG DAVE. David P. Miller - Loral Instrumentation. 8401 Aero Drive, San Diego, California 92123 / USUAL \ (619) 560-5888 USA \ DISCLAIMER / miller@loral.cts.com ******************************************************************************** "Uma vez Flamengo, sempre Flamengo. Flamengo sempre eu hei de ser ..." ------------------------------ To: comp-simulation@jarthur.Claremont.edu Path: jarthur!ftrue From: "Dr. Destruction" Newsgroups: comp.simulation,sci.electronics Subject: Looking for SYSTID simulation program Keywords: SYSTID Date: 28 Feb 90 19:28:49 GMT Followup-To: sci.electronics Organization: Harvey Mudd College, Claremont, CA 91711 Source-Info: From (or Sender) name not authenticated. Does anyone have any information on the availability/location of the Communications system simulator known as SYSTID (system time domain)? This is a large scale program which has been developed by Hughes Aircraft since the early 70's. It was described in a special issue of the IEEE Journal on Selected Areas in Communications [Vol. SAC-2, Jan 1984]. It is a block-oriented simulator (I am guessing similar to BOSS, from the descriptions I have seen), with a model library encompassing such tools as signal generators, modulators/demods, limiters, detectors, meters, and source encoders. Any pointers to this or any similar sounding programs would be much appreciated! ----------------------------------------------------------------------------- Frederick True ftrue@hmcvax.BITNET ftrue@jarthur.claremont.edu Harvey Mudd College Life before coffee is no life for me. ----------------------------------------------------------------------------- ------------------------------ END OF SIMULATION DIGEST ************************