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 mpivars.sh error

Problem:

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:

/opt/intel/composer_xe_2013_sp1/mpirt/bin/intel64/mpirun:
line 96: /opt/intel/composer_xe_2013_sp1/mpirt/bin/intel64/mpivars.sh: No such file or directory

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

  • Développeurs
  • Linux*
  • Serveur
  • C/C++
  • Fortran
  • Bibliothèque Intel® MPI Library
  • Interface de transmission de messages
  • mpivars.sh not found
  • intel mpi
  • Informatique en cluster
  • S’abonner à intel mpi