Abstract:
This paper demonstrates a parallel implementation of the
Unstructured Adaptive Benchmark from the NASA Parallel Benchmark collection
in the PGAS paradigm extending the OpenMP paradigm for distributed
memory supercomputers. Some details of the modified OpenMP benchmark version
generalized to the PGAS variant are discussed. The PGAS-like SHMEM
library implementation for IBM Blue Gene/P through the DCMF messaging
layer is considered. A number of results obtained on up to 4096 cores
of the Blue Gene/P system installed at the Moscow State University are
analyzed.
Keywords:NPB UA Benchmark; PGAS paradigm; unstructured adaptive; OpenMP extension; Blue Gene/P; parallel programming.