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Posts Tagged with 'mpi'

MPI in Thirty Minutes
Learn how to obtain, build, and use an MPI stack for Linux machines. This tutorial will take you from "hello world" to parallel matrix multiplication in a matter of minutes.
MPI on Multicore, an OpenMP Alternative?
No matter how you cut it, coding for multicore is really just parallel programming.Doug Eadline explains the differences between OpenMP and MPI, when it's smart to use existing code and when it's time to rewrite an application to scale better on multicore systems.
Writing Hybrid MPI/OpenMP Code
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.

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