Visible to Intel only — GUID: GUID-7F4A9A84-3C9C-4BCD-A996-80AAAD6F6F66
Error Message: Bad Termination
Error Message: No such file or Directory
Error Message: Permission Denied
Error Message: Fatal Error
Error Message: Bad File Descriptor
Error Message: Too Many Open Files
Problem: High Memory Consumption Readings
Problem: MPI Application Hangs
Problem: Password Required
Problem: Cannot Execute Binary File
Problem: MPI limitation for Docker*
Visible to Intel only — GUID: GUID-7F4A9A84-3C9C-4BCD-A996-80AAAD6F6F66
Libfabric* Support
The Intel® MPI Library switched from the Open Fabrics Alliance* (OFA) framework to the Open Fabrics Interfaces* (OFI) framework and currently supports libfabric*.
Enabling Libfabric Support
By default, the script that sets the environmental variables (vars.sh) sets the environment to libfabric shipped with the Intel MPI Library. To disable this, use the I_MPI_OFI_LIBRARY_INTERNAL environment variable or the -i_mpi_ofi_internal option passed to the script:
# Do not set the environment to libfabric from the Intel MPI Library. $ source <install-dir>/env/vars.sh -i_mpi_ofi_internal=0 # Set the environment to libfabric from the Intel MPI Library. $ source <install-dir>/env/vars.sh -i_mpi_ofi_internal=1 # A short form of -ofi-internal=1 $ source <install-dir>/env/vars.sh
NOTE:
Set the I_MPI_DEBUG environment variable to 1 before running an MPI application to see the libfabric version and provider.
Example
$ export I_MPI_DEBUG=1 $ mpiexec -n 1 IMB-MPI1 -help [0] MPI startup(): libfabric version: 1.5.0 [0] MPI startup(): libfabric provider: psm2 ...
Supported Providers
- psm3
- efa
- tcp
- shm
- psm2
- mlx
- verbs
See Also
- "OFI-Capable Network Fabrics Control" in the Intel MPI Library Developer Reference
Parent topic: Fabrics Control