1. Alternative Processor Panel
Robert Singleterry: NASA’s Space Radiation Problem and FPGA Experience
Wu Feng: Performance Evaluation of Biological Codes on Cell and GPGPU
Richard Walsh: Larrabee Microarchitecture and Programming Potential Overview
Andrew Jones: Data Parallel or General Purpose Support and their Environments
John Gustafson: Alternative Processors and What is Really Needed

2. NASA’s Space Radiation Problem and our Experience with Alternative Processors
Robert C. Singleterry Jr.
NASA Langley Research Center
HPC Users Forum
Tucson, AZ (GO Wildcats)
10-September-2009

3. What does Space Radiation Do

4. Transport Response Functions
Code Details
Boundary Conditions
Physics Data
Geometry
(most complex)
Interpolation
Ray-by-ray
Monte Carlo
Finite Elements/SN
Transport
Response Functions
Dose
ETC…
Dose Equivalent
LET
Effective Dose
% REID

5. Transport Codes Interpolation Ray-by-ray Monte Carlo
Serial can be vectorized
Ray-by-ray
Coarse parallel by ray with each ray vectorized
Monte Carlo
Inherently parallel – should be anyway
Cluster and vector
Finite Elements/SN
Space/energy/angle decomposition for cluster
Originally SN was vectorized

6. Viva and FPGA
After this, NASA stop supporting
this work at my level