[EMAIL PROTECTED] wrote:
When an output .xtc destination of mdrun is backed up while the original version
of mdrun is still running, does mdrun know and does the output get handled
correctly?
No, but it works the way you'd want it to.
So two versions of mdrun are running simultaneously in the same directly
(identified by the original log file which continues to show additional md
steps). The strange thing is that #traj.xtc.2# continues to be updated and is
now the size that I expect it to be as if it is getting properly updated.
Is this possible? Does mdrun know when "Back Off!" occurs and redirect its
output appropriately?
Filenames are just indexes into lists of the locations where chunks of
files are stored. On a typical file system, you can change the name
without changing the underlying structure - just like a real file in a
filing cabinet. Once mdrun has opened the file (the backup procedure
happens before that, once only) it keeps it open, referring to the
underlying structure and not using the name again. Hence, renaming it is
irrelevant. You can test this yourself by renaming it mid-output some
time. An additional test of the integrity of your file is to work out
the simulation time that you introduced the potential discontinuity, and
looking to see what happens at that point of the trajectory.
Mark
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