intel mpi

Reducing Initialization Times of the Intel MPI® Library

Running large scale Intel® MPI applications on InfiniBand* clusters, one might have recognized an increasing time spend within the MPI_Init() routine. The reason for this behavior are some MPI runtime infrastructure management operations that are necessary in order to make sure that all MPI ranks have a common environment. Having large MPI runs with multiple thousands of ranks, these operations can consume a huge part of the MPI initialization phase time.

Missing error


I have a system that has both the Intel® Compilers and the Intel® MPI Library.  I'm trying to run an Intel MPI job with mpirun but I'm hitting the following errors:

line 96: /opt/intel/composer_xe_2013_sp1/mpirt/bin/intel64/ No such file or directory

Furthermore, when I try mpirun -V, it returns this:

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