OBJECT ORIENTED PROGRAMMING IN C++ ON THE CRAY FOR SCIENTIFIC CODES

OBJECT ORIENTED PROGRAMMING (OOP) HAS BEEN SUCCESSFULLY APPLIED RECENTLY TO A VARIETY OF SOFTWARE MODELS. IT HAS BEEN USED IN SIMULATION, IN OBJECT-ORIENTED DATA BASES, AND IN SOFTWARE ENGINEERING. THE C LANGUAGE IS BECOMING A DOMINANT PROGRAMMING LANGUAGE. THE FACT THAT C++ IS AN EXTENSION OF THE C LANGUAGE IS ESPECIALLY NOTABLE. IT HAS MACHINE LEVEL EFFICIENCY AND IT IS PORTABLE ON ANYTHING FROM A CRAY TO A PC. IT HAS GENERALLY BEEN REGARDED AS A LANGUAGE THAT IS NOT EFFECTIVE FOR NUMERICAL CALCULATIONS, BUT NEWER COMPILERS ARE ERASING THIS DISADVANTAGE. THEREFORE, IT SHOULD BE NATURAL TO APPLY OOP TO THE DESIGN OF MODULES FOR SCIENTIC COMPUTATIONS. IN ORDER TO DO THIS IN SUPERCOMPUTER ENVIRONMENTS IT WILL BE NECESSARY TO BUILD AN OOP ENVIRONMENT WITH EXISTING SOFTWARE AND OPERATING SYSTEMS ON THE AFWL CRAY. TO THAT END WE WILL DESIGN A C++ INTERPRETER IN PHASE I AND A C++ COMPILER IN PHASE II USING THE PRESENT CRAY C ENVIRONMENT TO DEMONSTRATE THE FEASIBILITY OF AN OOP ENVIRONMENT ON A SUPERCOMPUTER ARCHITECTURE. FURTHER, WE WILL BUILD AN OOP NUMERICAL APPLICATION ENVIRONMENT AND WILL DEMONSTRATE THIS ENVIRONMENT WITH A C++ SCIENTIC APPLICATION ON THE CRAY SUPERCOMPUTER.