Design Platform for Weapons Effects Computational Codes

IN THIS PROPOSAL WE OFFER TO DEVELOP FOR THE DEFENSE NUCLEAR AGENCY A SOFTWARE DESIGN FRAMEWORK THAT CAN BE USED BY ALL OF DNA'S CONTRACT ORGANIZATIONS FOR THEIR OWN INDIVIDUALLY TAILORED DNA COMPUTATIONAL SOFTWARE--EXISTING OR DEVELOPMENTAL. THIS FRAMEWORK MAKES USE OF NEWLY DEVELOPED OBJECT-ORIENTED DESIGN AIDES TO ENABLE USERS TO BUILD THEIR OWN CODES FOR USE ON THE NEWEST WORKSTATIONS AND MASSIVELY PARALLEL PROCESSING (MPP) ARCHITECTURES WITHOUT RESORTING TO REWNTING THE SOFTWARE FOR USE ON THESE MULTIPLE ARCHITECTURES. THAT IS, THE SAME USER SOURCE CODE COULD BE PO.ED TO A SUN, CRAY, OR CONNECTION MACHINE WITH ONLY ANOTHER IMPLEMENTATION OF THE FRAMEWORK REQUIRED. THIS SOFTWARE DESIGN FRAMEWORK REPRESENTS SUCH A SIGNIFICANT ADVANCE IN SCIENTIFIC COMPUTING THAT NO LESS THAN TWO NATIONAL LABORATORIES (SANDIA AND LOS ALAMOS) ARE INVESTING CONSIDERABLY ILL THIS TECHNOLOGY FOR THE NEWEST MPP ARCHITECTURES. WE WILL FOCUS OUR DESIGN PLATFONNSPECIHCALLY AT THE KINDS OF LARGE-SCALE CODES THAT DNA CONTRACTORS ARE USING TODAY; CODES LIKE NIKE2D/3D, DYNA2D/3D, CMLE, CM, TRANAL, AND NASTRAN. IN PHASE I WE WILL DEMONSTRATE OUR APPROACH WITH JUST TWO OF THESE CODES, NIKE2D (IMPLICIT CODE) AND DYNA2D (EXPLICIT CODE) .