Fluids

Fluids

Deadlock in MPI communication for this job

    • sridharsahoo366
      Subscriber

      I am simulating an internal combustion engine using ansys Forte. The simulation starts from 5° CA before the intake valve opening to 5° CA after the exhaust valve opening. However, when the intake valve open crank angle reaches, the deadlock in MPI communication for the job occurs. Thereafter simulation stops at that crank angle.

      I am unable to understand the possible reason for this error.

    • RK
      Ansys Employee
      Hello, nThis error usually ocurs when you are running on fewer cores. Please use larger number of cores and try again. Let us know if the issue persists. n
    • sridharsahoo366
      Subscriber
      I am running my simulation in an HPC server, where I am using 80 core on 2 nodes. Please suggest hown to resolve this issuenI guess the issue cause due to the mesh problem at the intake valve opening. Sometimes, I get different errors at this crank angle like below.nError in creating auto meshnAssertion failed: RegionController.cpp:330nCGNS solution file closed successfullynn
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