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Dear Nektar++,

I am using the FieldConvert filter in my session file to output vorticity. I then isolate regions of my domain using the range option (-r) of FieldConvert in post-processing. To enable the isolation of these regions, I have found that I should produce .fld files with my filter as opposed to .plt, .dat, etc. Here is my filter:

<PARAM NAME="OutputFile">Fields.vtu</PARAM>

<PARAM NAME="Modules">vorticity</PARAM>

</FILTER>

When running in parallel, this filter will output .fld directories with .fld files in them each corresponding to the processors used. This is where the issue arises: I am running simulations on a cluster using many processors and I need to save lots of time steps. My cluster has a 1 million file limit, and I will quickly hit this if I do not convert and overwrite the .fld directories into single .fld files in-situ. I know the command to do this in post-processing:

FieldConvert -f session.xml Fields_#_fc.fld/ Fields_#_fc.fld

but so far, have not been successful in implementing this in-situ.

I would be very grateful if you could offer a solution or at least steer me in the right direction with this issue. Thank you very much in advance, and I look forward to hearing from you.

Sincerely,

Isaac