Frames missing

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1

Hi all,
I am using LAMMPS for my work. Recently,i am encountering some problem.
During my simulations, i tried to dump (dump ATOM style) every 10fs for a 500ps simulation.
Then when i looked at the dumps file, i found some frames missing in the file. Could you let me know
how can i proceed to overcome this problem.

Thanks in advance

Regards
Naresh

2

Hi all,
I am using LAMMPS for my work. Recently,i am encountering some problem.
During my simulations, i tried to dump (dump ATOM style) every 10fs for a 500ps simulation.
Then when i looked at the dumps file, i found some frames missing in the file. Could you let me know
how can i proceed to overcome this problem.

this is unlikely a LAMMPS problem unless you can show
that there is a specific pattern to the missing frames.

in order to debug this, you have to find a way to reproduce
this quickly.

more likely is that you have a filesystem issue.

axel.

3

Have you tried using "dump_modify myDump flush yes" ?

According to the doc file:
"The flush keyword determines whether a flush operation is invoked
after a dump snapshot is written to the dump file. A flush insures the
output in that file is current (no buffering by the OS), even if
LAMMPS halts before the simulation completes."

4

Hi ,

Thanks for the information. There is no specific patterns for the missing frames.
Hence it is completely random. I will try to reproduce it and post it soon.

Regards
Naresh

5

Hi,
   Thanks for the suggestions. I havent tried this option before.
I would try it and let you know the update.

Regards
Naresh