Newsgroups: comp.parallel,comp.parallel.pvm,comp.parallel.mpi
From: "Y.F. Hu" <Y.F.Hu@daresbury.ac.uk>
Subject: dynamic load balancing workshop (2nd announcement)
Organization: SERC Daresbury Lab, Warrington, U.K.
Date: Mon, 30 Oct 1995 13:41:01 GMT
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Message-ID: <472kld$26k@mserv1.dl.ac.uk>

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.
 
Programme 
 
"Can Static Load Balancing Algorithms Be Appropriate in a Dynamic
Setting?" Bruce Hendrickson (Sandia National Laboratory)
 
"Dynamic Mesh Partitioning" Chris Walshaw (University of Greenwich)
 
"Long range forces AND hydrodynamics" Frazer Pearce (University of Sussex)
 
"Dynamic Load Balancing in the UKMO's Operational Weather Forecasting 
and Climate Prediction Model" Rupter Ford, CNC. Manchester
 
"Dynamic Load Balancing Issues in the MPP Version of Long-Range Forcasting
System" Fritz Wollenweber, ECMWF
 
"Perspectives on Dynamic Load Balancing on Parallel Tasks on 
Workstation Clusters" Bill McMillan, University of Glaskow.
 
"Variants of the Spectral Bisection Technique Suited for Dynamic 
Load Balancing" Dirk Roose and Raf Van Driessche (KU Leuven, Belgium)
 
``Current and Future Requirements in Distributed Crash Worthiness 
Simulation" Guy Lonsdale (ESI, GmbH)
 
"Some Algorithms for Dynamic Load Balancing" Yifan Hu (Daresbury 
Laboratory)
 
``Towards Parallel Dynamic Load Balancing for Adaptive PDE solvers"
Peter Jimack (University of Leeds)

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

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

Many CFD and related science engineering problems (e.g. crash 
simulation, fluid/structure interactions) 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 <a href="./form.html"> registration form 
by the 20 th 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 for the meeting: 
   http://www.dl.ac.uk/TCSC/Staff/Hu_Y_F/MEETING/meeting.html
 
 
-----------------------------------------------------------
 
         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



