How to remove columns 2 (ConvIter) to 4 (NumUJac) from the output .out file

[laitiandeng-maker]

Hello OpenFAST community,
I encountered a tricky problem. I want to cancel the output of the second column (ConvIter), the third column (ConvError), and the fourth column (NumUJac) in the .out file, but I can't find the corresponding output channels in the .dat and .fst files. Is there any way to solve this problem?

Best regards

[jjonkman]

Dear @laitiandeng-maker,

As of OpenFAST v5 that supports a new tight coupling algorithm, these output columns (ConvIter, ConvError, NumUJac) are automatically added to the OutList written (along with Time, which has been there in earlier versions of FAST/OpenFAST). These outputs summarize how the solver performed at each time step. You should be able to ignore the output columns you don't need. If for some reason you need to eliminate these columns, you could always change the source code and recompile OpenFAST to eliminate them.

Best regards,

[laitiandeng-maker]

Thank you for your reply. For now, I only need to use the release version and am not yet able to compile OpenFAST myself. Once I become more proficient with OpenFAST, I will consider recompiling it to remove these three output columns. Thank you again for your answer.
I wish you a pleasant life. Best regards