Performance and Portability in Parallel Computing: A Weather Forecast View

Parallelizing Operational Weather Forecast Models for Portable and Fast Execution

“…We ported NNT to the SGI Challenge using System V Interprocess Communication (IPC) shared memory operations, which allow efficient movement of data during halo region exchanges. The data is gathered and scattered into a single shared buffer for communication, avoiding the high cost associated with the multilevel buffering used in message passing libraries [10].…”