%T Performance modelling of a parallel meural network simulator
%A Tom Tollenaere, Dirk Roose
%E Alastair R. Allen
%B Proceedings of WoTUG\-15: Transputer Systems \- ongoing Research
%X A model program structure is presented for parallel
applications with local interactions between the data
elements, such as neural networks simulations and the
solution of partial differential equations. The performance
of this model program is analyzed both theoretically by
means of classical performance models, and experimentally
using a parallel neural network simulator program. The
program runs on a Meiko transputer array, and uses the Meiko
CSTools libraries for its communications. The comparison of
both analyses allows to predict applications performance on
new and other machines, and indicate what parts of an
application are worth optimizing. Moreover, it is shown that
classical theoretical models not always capture the behavior
of a real machine.
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