How to run simulations with Intel MPI on Windows

This page shows the process of running Lumerical simulation on Windows using Intel MPI as the Job launching preset.

Using Intel MPI on the local computer

When Intel MPI is selected as the "Job launching preset", the resource configuration automatically configures the job manager with the options below to allow running with Intel MPI on the local computer.

mpiexec.exe -noprompt -localroot

Running remote simulations with Intel MPI

• Ensure that all computers are running on a supported Windows system and the same version of Lumerical.
• On your local PC, open a Windows command prompt,
• Change directory to the location of Intel MPI for your version of Lumerical,

For Lumerical 2021 R1 and older:

cd "C:\Program Files (x86)\IntelSWToolsMPI\compilers_and_libraries_2018.5.274\windows\mpi\intel64\bin"

For Lumerical 2021 R2.2 and newer:

cd "C:\Program Files (x86)\IntelSWToolsMPI\compilers_and_libraries_2020.4.321\windows\mpi\intel64\bin"

Hydra service status

Check to ensure that the Hydra service is installed and running on all of the computers.

hydra_service -status

Install Hydra service

If the service is not running on any of the computers, install and run the service;

hydra_service -install

Register credentials 

• Register "User credential" with Intel MPI on your local PC before running the simulation with Intel MPI. These credentials are encrypted and stored in the system registry.
• The 'Username' and 'Password' should be the same as the ones you used to login into Windows on these computers.

mpiexec -register

Validate the installation

mpiexec -validate