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| I read the data file multiple times with lammps.
When the volume of the second data is not too large, the command proceeds smoothly. But when the z direction of the second data increases and the number of particles does not change, there is such a problem in performing energy minimization.
# "NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s"What should I do?
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this is a message of the Linux kernel and not from LAMMPS. This is often an indication of either a hardware issue or a bug in a driver, but has nothing to do with LAMMPS calculations directly.
axel.
Thank you very much for your reply.
Then what should I do when I encountered such a problem?
And the reason I encountered such message is that the z direction of the second data increases.
and if i reduce z to the original value, it is normal again.
Is this reproducible?
Yes，it is.
I copied a copy of the commands and data files that can be run.
Then in the copy, the second data file changes the parameters of z and the corresponding coordinates of the particles, and then this problem occurs.
Contact you system administrators. As I mentioned, this is not a LAMMPS issue, but must be a hardware or driver issue and thus has to be addressed at that level. LAMMPS does what it needs to be doing, it is the OS that cannot keep up. Thus there is nothing on the LAMMPS side, that you can change to avoid it.
Axel
Greatly appreciated for your kind advice.
I think I need to contact the relevant authors to find out the technical information.
And how can I contact the system administrator?
i suspect, you did not understand what i told you. how on earth should I know how to contact your sysadmins???
there is no author to contact, this is a problem of the computer you are running your calculation on.
as mentioned before, this is not a message from the LAMMPS software. it can happen with any software, actually.
axel.
I guess I understand what you mean now.
Thank you for explaining it to me!