Extreme Parallel Computing – The Man, Machine & the Maths Behind It


Dr. James Anderson, Lecturer in Computer Science, Reading University

Thursday 16th June 2011 – 7:30pm

Venue: Oxford e-Research Centre, 6 Keble Road, Oxford, OX1 3QG


Abstract: The operations of a total arithmetic can be applied to any numbers with the result being a number. Such arithmetics have no arithmetical exceptions so they can be executed in a pipeline without stalling. If a program’s inner loops can be unrolled to an inline program then that program can be executed in a pipeline with a number of program runs completing each clock tick. In a practical molecular dynamics problem, 500 atom-atom interactions were computed each clock tick in a simulated 2M core machine.

The talk will begin with an introduction to transreal arithmetic and show how it can be implemented in both integer and floating-point arithmetic, with special emphasis on IEEE floating-point arithmetic. Transcomplex arithmetic, and its application to the solution of physical problems, will be discussed very briefly, before showing how to exploit the arithmetics in a massively pipelined machine.

Biography: Dr James Anderson is a lecturer in Computer Science at Reading University where he teaches discrete mathematics and compiler theory and practice. He is Chair of the Berkshire Branch of the BCS. More info

Event Information

StrawberriesThe event is free and both members and non-members are very welcome. Reservations are not required.

In addition to the normal sandwiches strawberries, cream and wine will be served from 7:00pm. The lecture starts at 7:30pm.


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