B.6. Intel MPI Default shm Setting for Windows

When running Forte on the Windows machines with multiple sockets, the performance of the Forte spray models can be poor. This is a known defect in Intel MPI. At Intel's advice, Forte by default sets:

I_MPI_FABRICS="shm"

to improve the performance. If you experience any unpredictable behavior on your dual socket Windows machines, please contact Ansys Support for advice.