simulation@uflorida.cis.ufl.edu (Moderator: Paul Fishwick) (07/07/89)
Volume: 9, Issue: 9, Thu Jul 6 14:04:24 EDT 1989 +----------------+ | TODAY'S TOPICS | +----------------+ (1) FORTRAN Simulation Routines (2) Scheduling/Unscheduling (3) Information Systems Newsgroup Formation (4) Expanding the Simulation Forum * Moderator: Paul Fishwick, Univ. of Florida * Send topical mail to: simulation@uflorida.cis.ufl.edu * Archives available via FTP to bikini.cis.ufl.edu, login as 'anonymous', 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: Mon, 3 Jul 89 14:03:48 EDT From: mroth@BLACKBIRD.AFIT.AF.MIL (Mark A. Roth) To: simulation@bikini.cis.ufl.edu Subject: FORTRAN simulation routines Does anyone have knowledge or access to a set of FORTRAN subroutines which implements a basic simulation engine (time keeping and event scheduling, random variate generation, etc.)? I was reading about some PASCAL implemtations in the Winter 87 Simulation Conference and thought surely someone had done it in FORTRAN. Mark Roth AFIT/ENG WPAFB, OH 45433 mroth@afit.af.mil ------------------------------ To: Paul Fishwick <fishwick@fish.cis.ufl.edu> Subject: Re: SIMULATION DIGEST V9 N8 In-Reply-To: Your message of Sat, 01 Jul 89 13:24:15 D. Date: Tue, 04 Jul 89 14:45:40 PDT From: Sanjai Narain <narain%pluto@rand.org> Reply to Steve Glicker ---------------------- My motivation in asking the question about scheduling/unscheduling was that I would like to reason about programs written using the discrete-event technique. As these concepts are associated with it, whether or not they form part of the "main model", it is essential to know what is their semantics, i.e. deeper purpose. For example, a natural question is whether it is possible to schedule only those events which would never be unscheduled? If not, why not? As I mentioned previously, we have developed a new formalism called DMOD in which concepts of scheduling/unscheduling and event queues are shown to be logically dispensable. However, it seems to successfully capture the intuitions captured by the discrete-event technique. Furthermore, it can represent states which change gradually over time, such as position. State changes need not be discrete. In the light of DMOD we believe that scheduling and unscheduling are methods of enforcing the logic of abstract causality rules which refer to the future of causing events. If this is so, these more declarative rules can directly form the simulation program (as is the case in DMOD). Regards. Sanjai Narain ------------------------------ Organisation: University of Technology, Delft The Netherlands. To: comp-simulation%hp4nl@uunet.UU.NET Path: dutrun!winffww From: dutrun!winffww@uunet.UU.NET (Folkert W. Wierda) Newsgroups: news.groups,comp.simulation,comp.databases,comp.cog-eng Subject: *** CALL FOR DISCUSSION: creation of COMP.INFORMATIONSYSTEMS *** Date: 6 Jul 89 10:16:03 GMT Followup-To: news.groups Organization: Delft University of Technology, The Netherlands ***************************************************** ALL REACTIONS ONLY TO NEWS.GROUPS!!!!! ***************************************************** CALL FOR DISCUSSION ON CREATING COMP.INFORMATIONSYSTEMS The field of INFORMATION SYSTEMS at the moment does not have it's own forum for discussion. Not only is it missing on USENET, also on other networks an area for discussions and exchange on topics like design of information systems, decision support systems, organizational impact of information systems, support tools for designing information systems, research methods in information systems, information planning, etc. is lacking. After consulting Henk Sol, Ralph Sprague and Gordon Davis and several other researchers in the field of IS we have come to the conclusion that we should try to create such a discussion area. In our view this discussion area should be COMP.INFORMATIONSYSTEMS. It should be part of the COMP tree, because we are talking about computerized information systems. In our view the area should be MODERATED, in order to be able to filter out the postings that have nothing to do with information systems. Moderation means just filtering, appropriate postings will appear unchanged. Moderation will be performed by Alexander Verbraeck and Folkert W. Wierda at Delft University of Technology, Department of Information Systems. This discussion on creating COMP.INFORMATIONSYSTEMS starts at July 6, and will continue till August 5. At that same day a call for votes will be posted, that continues till September 5. Please remember that all contributions to this discussion should be posted to news.groups. For any further questions and suggestions about the proposed newsgroup it is also possible to contact us by E-mail. ------------------------------------------------------ Alexander Verbraeck winfave@hdetud1.bitnet winfave@dutrun.uucp Folkert W. Wierda winffww@hdetud1.bitnet winffww@dutrun.uucp Delft University of Technology Department of Information Systems P.O.Box 356 2600 AJ Delft The Netherlands ------------------------------------------------------ ------------------------------ Date: Thu, 6 Jul 89 13:54:35 -0400 From: Paul Fishwick <fishwick@fish.cis.ufl.edu> To: simulation@ufl.edu Subject: volunteers wanted Are there any volunteers out there who would like to do the following for the digest? (1) Condense news stories connected with simulation. Especially from magazines such as Discover, Sci. American, Science, NewsWeek, Time, etc. (2) Provide book reviews on simulation related topics. (3) A quote from someone's book that has lasting significance. (4) A list of Ph.D. dissertations and M.S. theses connected with simulation. (5) A list of bibliography citations (preferably in the form used by LATEX and Scribe) for a special subtopic. (6) A review on a simulation software package. I'm sure that I have missed out a lot! If you have any ideas, please send them in! Electronic news groups have the potential to become on-line publications in their own right. Pictures can be included eventually when this medium becomes more tractable. In the mean time, we can copy the way that current magazines and journals do things (with departments and sections...). -paul +------------------------------------------------------------------------+ | Prof. Paul A. Fishwick.... INTERNET: fishwick@bikini.cis.ufl.edu | | Dept. of Computer Science. UUCP: gatech!uflorida!fishwick | | Univ. of Florida.......... PHONE: (904)-335-8036 | | Bldg. CSE, Room 301....... FAX is available | | Gainesville, FL 32611..... | +------------------------------------------------------------------------+ ------------------------------ END OF SIMULATION DIGEST ************************