Rahul
Ansys Employee

Hello Anas,

Just ensure that you are using correct files on your HPC and check if all the participants files are transferred to HPC.

To run co-simulation at least two coupling participants, one interface, and one data transfer is necessary.

I would recommend you to follow this workshop and refer to user manual to know more about workflow.

Solving Co-Simulations from the Command Line (ansys.com) and Reed Valve FSI Co-Simulation with Partial Setup Export from Workbench (Fluent-Mechanical) (ansys.com)

Using Parallel Processing Capabilities (ansys.com)

Hope this helps!