Question on “sched_setaffinity() call failed: Invalid argument”

- April 26, 2022 at 7:09 pm
  
  helen.durand
  Subscriber
  
  Good afternoon,
  Sometimes when we set a simulation running in ANSYS Fluent on an HPC cluster, using a batch script and journal file, the .err file will output, many times: "sched_setaffinity() call failed: Invalid argument". Do you know what this means and what needs to be done to stop it? Does it affect our simulation in any way?
  
  Thank you,
  Research Group Discovery
- April 27, 2022 at 2:47 pm
  
  RK
  Ansys Employee
  
  Hello,
  Does the simulation run? There could be an error in the batch script.
- May 5, 2022 at 5:05 pm
  
  helen.durand
  Subscriber
  
  Yes, the simulation runs. We checked the batch script and we did not see any error. There are times when this message is not displayed when we run the same batch script. We are wondering why this happens and whether this would affect our simulations.
  Thank you Research Group Discovery