krj@na.toronto.edu (Ken Jackson) (12/18/89)
NAgMAg Monday, December 18 1989 Volume 89 Issue 25
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%% The official electronic digest of the NAG Users Association %%
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% MERRY CHRISTMAS TO ALL READERS AND A PROSPEROUS NEW YEAR
%
% Well I had hoped for a bumper Xmas edition of the digest but the
% readers seem to have knocked off early this year! The digest is
% therefore dedicated to responses and announcements from NAG.
%
% Please can I have some new year's pressies in the form of e-mail
% messages for the digest? It would be nice to have some good
% debate in the digest to start off the New Year.
%
% Tim
%
% p.s. Please note the new NAGUA telephone number at the end of
% the article
Today's Topics
Replies from NAG
Call for Papers
April Workshop
---------------------------
Date: Wed, 6 Dec 89 9:36 GMT
Subject: Replies from NAG
REPLIES FROM NAG
----------------
Reply to issue 23
re: G05CBF
------
Peter Visscher encountered a problem when using G05CBF. He calls
G05CBF within a loop using a random integer as a seed and reports
that the results give reduced variance. The problem may be caused by
the different streams of random numbers started with each call to G05CBF
not being independent. Randomness can only be expected within a stream of
random numbers not between streams. Independent seeds do not guarantee
independent streams of random numbers. The correlation between the streams of
random numbers would lead to a reduced overall variance.
The current NAG random number generator does not allow you to set up
independent streams of random numbers in a safe and convenient way and it
is something that we are currently examining.
Geoff Morgan
Replies to issue 24
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re: Online Information Supplement
-----------------------------
Thank you for your comments about Mark 13 Online Information Supplement
on the Cray X-MP running UNICOS 4.0.
1. Mark 13 News.
We have noted your comment, and will be providing fuller information
at Mark 14.
2. A00AAF.
This will be included at Mark 14.
3. Unix version under Cray.
The Unix version of the new HELP program will be standard Fortran 77
at Mark 14.
Diana Grace
re: New Library Routines
--------------------
Thank you for your suggestion. There will, in fact, be a new routine
at Mark 14 - E04UPF. This routine will minimise a sum of squares of
non-linear functions subject to simple bounds on the variables, general
linear constraints and non-linear constraints.
Sven Hammarling
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Date: Thu, 7 Dec 89 9:04 GMT
From: Caroline J Foers <CAROLINE@vax.nag.co.uk>
Subject: Call for Papers
NAGUA'90
--------
10th Annual Conference of the NAG Users Association
11-14 September 1990 Glasgow, UK
CALL FOR PAPERS
---------------
10th Annual Conference of the NAG Users Association
To be held at the West of Scotland Science Park, Glasgow, UK
One day tutorial on Parallel Computing on Tuesday 11 September 1990
Main meeting Wednesday 12 - Friday 14 September 1990
Provisional programme includes presentations and software demonstrations of the
latest NAG releases
Keynote speakers outline recent developments
Presentations by users on their experiences and requirements
Formal and informal opportunities to meet NAG staff and other users
Open to all users - with reduced fees if your institution is a member of NAGUA
Glasgow 1990: European City of Culture
You are cordially invited to attend, and are encouraged to submit a brief
abstract for a technical presentation. The content need not be of a highly
technical nature but should be of general interest to other users. The
duration can vary from 15 to 45 minutes. Brief abstracts should be sent to the
address below, to arrive not later than 9 February 1990. Abstracts will be
reviewed by the Committee of Management on Thursday 15 February 1990.
Caroline J Foers
NAGUA Coordinator
NAG Users Association
PO Box 426
OXFORD
OX2 8SD
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Date: Fri, 15 Dec 89 10:53 GMT
From: Caroline J Foers <CAROLINE@vax.nag.co.uk>
Subject: April Workshop
Event: NAGUA One-day Workshop
Subject: Scientific and Technical Computing Languages
Including: Fortran, Ada, C
Given by: Senior Technical NAG staff
Date: Wednesday 4 April 1990
Venue: Imperial College, London
Fee: #50 for NAGUA members (#80 for non members)
inclusive of lunch and tea/coffee
For more details see the article in issue 1 of NAGUA News.
A booking form is enclosed with the newsletter.
Provisional bookings can be made by telephone on 0865 311102
or by email.
---------------------------
%% For NAGUA membership details contact:
%% Janet Bentley, Administrator NAGUA,
%% Shore Lane Farm, Blackstone Edge Old Road,
%% LITTLEBOROUGH, Lancashire, OL15 0LQ, UK.
%%
%% For other NAGUA enquiries contact:
%% Caroline J Foers
%% NAGUA Coordinator,
%% NAG Users Association,
%% PO Box 426,
%% Oxford, OX2 8SD, U.K.
%%
%% Tel: +44 865 311102 <<<<<<<<<<<<<<<<<< NEW NEW NEW NEW
%%
%% e-mail caroline@uk.co.nag.vax
%%
%% Replies or submissions to nagmag@uk.ac.ukc
%% Distribution changes to nagmag-request@uk.ac.ukc
%%
%% END OF ISSUE
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Reposted by
Prof. Kenneth R. Jackson, krj@na.toronto.edu (on Internet, CSNet,
Computer Science Dept., ARPAnet, BITNET)
University of Toronto, krj@na.utoronto.ca (on CDNnet and other
Toronto, Ontario, X.400 nets (Europe))
Canada M5S 1A4 ...!{uunet,pyramid,watmath,ubc-cs}!utai!krj
(Phone: 416-978-7075) (on UUCP)
(FAX: 416-978-4765)