1.4 High performance computing enhancements to WRFV3.5

Michalakes, John, National Renewable Energy Laboratory

The latest release of WRFV3.5 is ported to the Intel Xeon Phi, a next-generation processor based on Intel’s Many Integrated Core (MIC) architecture that places 60 vector-enabled x86-64 processor cores on a single chip. Phi processors are used in the world’s currently fastest supercomputer, Tiahne-2 at the Guangzhou Supercomputer Centre in China, rated at 50 Petaflops on the Top500 list. Efforts to improve WRF performance of MIC by exposing concurrency, fine-grained parallelism, and increasing memory locality will be discussed.