Newsgroups: comp.parallel
From: K.Maguire@daresbury.ac.uk (Kevin Maguire)
Subject: Workshop: Dynamic Load Balancing
Organization: SERC Daresbury Lab, Warrington, U.K.
Date: 9 Oct 1995 15:16:48 GMT
Message-ID: <45bed0$1vk@usenet.srv.cis.pitt.edu>

          Dynamic Load Balancing on MPP Systems: 
              Progress, Challenge and Issues  

                Monday, 27th November, 1995 

           DARESBURY LABORATORY, WARRINGTON, UK 

This 1-day meeting, organised by CCP12 and the ERCOFTAC Special
Interest Group for Parallel Computing in CFD, with support from the DL
HPCI Centre, will focus on dynamic load balancing topics of concern in
the parallel computation of fluid dynamics, electromagnetics and many
other science and engineering areas.

Preliminary Programme 

"Can Static Load Balancing Algorithms Be Appropriate in a Dynamic Setting?" 
Bruce Hendrickson (Sandia National Laboratory)

"Variants of the Spectral Bisection Technique Suited for 
Dynamic Load Balancing" 
Dirk Roose (KU Leuven, Belgium)

"Parallel Mesh Partitioning" 
Chris Walshaw (University of Greenwich)

"Towards Parallel Dynamic Load Balancing for Adaptive PDE Solvers", 
Peter Jimack (University of Leeds)

"Some Algorithms for Dynamic Load Balancing" 
Yifan Hu (Daresbury Laboratory)

It is also hoped to have speakers from industry. Additional 
contributions, particularly in the form of posters, are welcome.

Background to Meeting 
---------------------

Many CFD and related science and engineering problems (e.g. crash
simulation, fluid/structure interactions, electromagnetics) are being
encouraged to move onto parallel systems and, in particular, Massively
Parallel Processing (MPP) systems. However, migration of many codes
onto such systems, apart from the parallel implementation itself, have
to overcome many additional difficulties in order to achieve efficient
implementations with good load balancing.  These problems affect
people using both structured grids (e.g.  multiblock and mesh patching
approaches) and unstructured grids.  In particular, the partitioning
of unstructured grids is done in a heuristic manner which inevitably
leads to load balancing issues.  Indeed, the full benefit of
unstructured meshes will not be realised on MPP systems unless mesh
enrichment/de-enrichment can be incorporated into the parallel code
and this will necessarily incur load balancing problems which can only
be resolved dynamically.

Objectives of the Meeting
-------------------------

The workshop will seek to identify the current status of dynamic load
balancing on parallel systems. It will focus on MPP systems such as
the Cray T3D, Intel Paragon and IBM SP2, although the issues addressed
would be equally applicable to workstation clusters.  It will
establish current practice and illustrate the challenges facing both
academic and industrial researchers. The workshop will also seek to
identify the issues involved in achieving efficient dynamic load
balancing strategies on existing or future machines.

Registration
------------

A nominal charge of 20 pounds Sterling will be made for academics and
40 pounds Sterling for industrial participants to cover the cost of
lunch, refreshments and proceedings. The meeting is free for EC
students.  Please complete and return the registration form by the
20th of November. An additional charge of 10 pounds Sterling will be
made for late registration. Please note places are limited and will be
given on a first-come first-served basis.

For further information concerning the programme, transport,
accomodation etc., please contact:

Dr. D. R. Emerson or Dr. Y. F. Hu
Theory and Computational Science
Daresbury Laboratory
Keckwick Lane
Daresbury
Warrington WA4 4AD
United Kingdom
email D.R.Emerson@dl.ac.uk or Y.F.Hu@dl.ac.uk
Tel. +44 (0)1925 603221
Fax  +44 (0)1925 603634

URL:==> http://www.dl.ac.uk/TCSC/Staff/Hu_Y_F/MEETING/meeting.html

-----------------------------------------------------------
registration form: please cut here
-----------------------------------------------------------

         Dynamic Load Balancing on MPP Systems: 
            Progress, Challenge and Issues  

                Monday, 27th November, 1995 
           DARESBURY LABORATORY,  WARRINGTON, UK 

REGISTRATION FORM:

FAMILY NAME........................   TITLE...............

FIRST NAME................................................

MAILING ADDRESS...........................................

..........................................................

..........................................................

E-MAIL ....................................................

Telephone No...................   Fax.....................


SPECIAL REQUIREMENTS

Please specify any special requirements such as diet, disability etc.

.............................................................

I will arrive by car      Y/N      Car reg. no...............

Registration Fee: 20 Pounds (Academics) 40 Pounds (Industry) 
                  10 Pounds Extra (Registration after the 20th November)
                  Free (EC students)   

The registration fee covers the cost of lunch, refreshments and
proceedings. Please make cheques payable to DARESBURY LABORATORY.
Please note places are limited and will be given on a first-come
first-served basis.

Please return this form to 

Dr. D. R. Emerson or Dr. Y. F. Hu
Theory and Computational Science
Daresbury Laboratory
Keckwick Lane
Daresbury
Warrington WA4 4AD
United Kingdom
email D.R.Emerson@dl.ac.uk or Y.F.Hu@dl.ac.uk
Tel. +44 (0)1925 603221
Fax  +44 (0)1925 603634
 

