From: johansen@delilah.ccsf.caltech.edu (Jonathan Johansen)
Newsgroups: comp.simulation
Subject: Summary of Clock Sych Replies
Date: 5 Jan 1993 16:47:45 GMT
Organization: California Institute of Technology, Pasadena
Distribution: world
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A few weeks ago, I posted a comp.simulation mesg which requested information
regarding the synchronization of "wall clocks" in a distributed computing
environment.  I have received several replies.  Attached below is a listing
of the references that where brought to my attention.  I would like to 
sincerely thank all of you who responded to my post.

Jonathan Johansen
Engr. Physics Division
Argonne National Laboratory
johansen@delco.ep.anl.gov

======BEGIN REFERENCE LIST
 
Network Time Protocol (NTP) as described in RFC 1119.
RFC1119 is available in PostScript format via anonymous FTP 
from NIC.DDN.MIL

Ramanathan, "Fault-Tolerant Clock Synchronization in 
Distributed Systems", IEEE Computer, Oct 1990, pp. 33-42.

L. Lamport, "Time, Clocks and the Ordering of Events in a Distributed
System", Comm. of ACM, July 1978, Vol 21, No. 7, pp 558-565.

L. Lamport and P.M. Melliar-Smith, "Synchronizing Clocks in the
Presence of Faults," J. ACM, Vol. 32, No. 1, Jan. 1985, pp. 52-78.

To go along with this sych'ing in the presence of faults paper, get the
following Lamport paper explaining general fault tolerance issues.

Lamport, Shostak, and Pease, "The Byzantine Generals Problem", ACM Trans.
on Prog. Languages and Systems, Vol 4, No. 3, July 1982, pp 382-401.

======END REFERENCE LIST




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Date:    Tue, 5 Jan 93 18:10:18 GMT
From: stockton@Sdsc.Edu
Subject: Directory of Simulation Software Available
To: simulation@bikini.cis.ufl.edu
X-St-Vmsmail-To: ST%"simulation@uflorida.cis.ufl.edu"
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NEWS RELEASE
FOR IMMEDIATE RELEASE
January 11, 1993
 
Contact:  Brian O'Neill
(619) 277-3888
 
 
           DIRECTORY OF SIMULATION SOFTWARE ISSUED
 
 
(San Diego, CA)  The 1993 Directory of Simulation Software has been
published by the Society for Computer Simulation (SCS).  The
Directory, edited by John Rodrigues of Amber Technologies (Concord,
Massachusetts), features over 50 pages of descriptions of
simulation software packages available in the market today.  The
1993 Directory is 25% larger than its predecessor, the 1991
Directory.
 
Over 100 entries are included in the 1993 Directory of Simulation
Software.  Each entry, listed alphabetically by its name, includes
a thorough description of what the package does, the platforms and
operating systems on which the package operates, its approximate
cost, and the complete address of the source or vendor.  The
entries are listed in a useful tabular form for easy referral.  
 
Especially useful in the 1993 Directory is an alphabetized subject/
applications index cross-referenced to the various packages listed.
 
The Society for Computer Simulation makes it clear that while
careful efforts are made to ensure accuracy of the entries, it in
no way endorses the packages listed, and the Society has not tested
any of the packages.
 
The 1993 Directory of Simulation Software (ISBN 1-56555-015-3) is
available for $30/$20 prepaid for non-members/members of SCS at
P.O. Box 17900, San Diego, California 92177.  Credit card (VISA,
Mastercard, AmEx) orders are accepted by phone: (619) 277-3888;
fax: (619) 277-3930; or electronic mail, SCS@SDSC.BITNET.
 
The Society for Computer Simulation is a non-profit, professional
membership technical society.  With worldwide membership and
offices in San Diego and Ghent, Belgium, the society focuses on the
dissemination of technical information about computer simulation
to professionals in all disciplines.  Founded in 1952, SCS sponsors
6-8 major technical conferences annually, publishes a monthly
technical journal, SIMULATION, and a quarterly archival
Transactions of the Society for Computer Simulation.  It is also
active in standards development, awards, and professional
recognition of its members and others in the simulation industry.
 
                              -30-



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Date:    Thu, 7 Jan 93 10:01:52 GMT
From: mcleod@Sdsc.Edu
Subject: MISSION EARTH PLANS

I recently sent a message to all of you people on my E-S3 list 
asking all who were interested in our activity on behalf of our 
environment to ask Ben to "send plans".  Because of problems with 
Ben's E-mail system we are not now sure just who replied.  I am 
now taking the liberty of sending our plans for our Technical 
Activity MISSION EARTH to all of you.  I hope that those of 
you who are not interested have a convenient wastebasket.
 
SCSI conferences for the coming year are:
 
Western MultiConference on Computer Simulation
La Jolla, California, January 17-20
 
Simulation MultiConference
Arlington, Virginia, March 29 - April 1.
 
Summer Computer Simulation Conference
Boston, Mass., July 19-21
 
International Simulation Technology Conference
November 9-12
 
A Panel Disussion of project MISSION EARTH, giving progress to 
date and following a "brainstorming" format with panelists and the 
audience, and at least one paper session, are planned for each of 
the conferences, though because there is no longer time to 
review papers for the January meeting, those not already accepted 
cannot be considered.
 
For details concerning any of the Conferences please REPLY to 
this message. 
 
John McLeod  `mcleod@sdsc.edu'
Ben Clymer  



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Subject: [NEW QUESTIONS]


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To: simulation@bikini.cis.ufl.edu
Subject: Generating Gauss-Markov Random Deviates?
Date: Tue, 05 Jan 93 11:56:18 -0500
From: wrm@ee.WPI.EDU
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Can anyone provide an algorithm for generating Gauss-Markov RVs?  The
purpose is to generate values that have a Gaussian distribution, with
an exponential autocorrelation function.  Any help is appreciated.

Thank you.

Bill Michalson
wrm@ee.wpi.edu



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