Posts Tagged with 'concurrency'

The last few "Extreme Linux" columns have focused on multiprocessing using OpenMP. While often used in scientific models for shared memory parallelism on symmetric multi-processor (SMP) machines, OpenMP can also be used in conjunction with the Message Passing Interface (MPI) to provide a second level of parallelism for improved performance on Linux clusters having SMP compute nodes. Programs that mix OpenMP and MPI are often referred to as hybrid codes.