NAS Kernels on the Connection Machine RND-90-005

The NAS Kernel Benchmark Program is a collection of FORTRAN subroutines, or "kernels", which were chosen to be representative of the computational workload of the Numerical Aerodynamic Simulation (NAS) facility located at NASA Ames Research Center. Details of the kernels are provided in [1]. The kernels provide benchmark measures of double precision (64 bit) floating point computation rate and accuracy and have been run on many different computer systems [2]. The kernels were developed in FORTRAN 77 and were designed for maximum performance on serial vector machines. However, as high performance scientific computing evolves, increasing emphasis has been placed on parallel computer systems. This report details the implementation and performance of the kernels on a massively parallel computer system, a Thinking Machines Corporation Connection Machine 2 (CM) with 32K processors.