CONVERSION OF THE PARTICLE CODE ISIS TO THE CONNECTION MACHINE 5 FOR DECADE DESIGN

PARTICLE CODES SUCH AS ISIS ARE USEFUL FOR MODELING VACUUM POWER FLOW, ELECTRON BEAM MOTION, AND PLASMA BEHAVIOR IN PULSED POWER DEVICES. THE CONNECTION MACHINE 5 (CM-5) GOING TO THE LOS ALAMOS NATIONAL LABORATORY (LANL) WILL HAVE THE POTENTIAL FOR EXECUTING COMPUTER CODES SIGNFICANTLY FASTER AND LARGER THAN CURRENTLY EXISTS WITH THE CRAY VECTOR SUPERCOMPUTER ON WHICH ISIS RUNS. WE PROPOSE TO CONVERT ISIS TO THE CM-5 AND COMPARE ITS PERFORMANCE WITH THE VERSIONS RUNNING ON THE CRAY SUPERCOMPUTERS IN THE OPEN PARTITION AT LANL. THE FORTRAN IN ISIS WILL BE CONVERTED INTO THE PARALLEL FORTRAN CONSTRUCTS USED IN THE CM-5. THE CONVERTED VERSION ON THE CM-5 WILL BE BENCHMARKED FOR ACCURACY AND SPEED ON TEST PROBLEMS RELEVANT TO PULSED POWER DEVICES.