Continuing (appending) from checkpoint makes energy files corrupt
If restarting from a checkpoint energy files can no longer be opened (with 'gmx energy' or 'gmx awh').
The guilty commit is ec205c721f49c918b0a92c2a084a905d14209e87 (Change-Id: I0fe517f4ce3f6630e589a65d106ca67bcb14765b), i.e. broken since right after v2020-beta1.
#1 Updated by Magnus Lundborg 2 months ago
To clarity, gmx energy can open the file, but not read the data past the checkpoint append. The message is:
Energy header magic number mismatch, this is not a GROMACS edr file
If you want to use the correct frames before the corrupted frame and avoid
this fatal error set the env.var. GMX_ENX_NO_FATAL"