Free Resources
Many times when running NX Nastran on larger models, you may be interested in looking at the .f04 or .f06 file to monitor the progress of the run or see an intermediate result. Unfortunately, those files are buffered and may not be updated if Nastran is working on something computationally challenging. Nastran has a feature that flushes the buffer and shows what has been written to the .f04 and .f06 files up to that point.
DOWNLOAD NX_Nastran_flushing_f04.pdf