Dear all,

I try to extract boundary region by running:

FieldConvert -m extract:fldtoboundary=1 cylinder1_Spherigon.xml cylinder1_Spherigon_5.chk cylinder1_Spherigon_5-boundary.chk

Here my cylinder1_Spherigob_5.chk is a folder which contains:

This is due to we use mpirun command to do simulation.

However, we get the errors when running the above command:

Fatal : Level 0 assertion violation

Variable index out of range.

libc++abi.dylib: terminating with uncaught exception of type ErrorUtil::NekError: Level 0 assertion violation

Variable index out of range.

Abort trap: 6

May I know how can I deal with such .chk file?

Thank you very much!

Best,

Shan