Cassandra Simulation Completes Unexpectedly
- piskuliche
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7 years 8 months ago #232
by piskuliche
Hello All,
I am having an odd problem with Cassandra all of a sudden.
I have been running jobs (using units sweeps) for quite a long time. I have a simulation that has been run for 1,250,000 sweeps with a sweep defined as 1000 steps (the number of atoms in my GEMC simulation). However, when I try and restart the simulation from this point (and change the run command to 3,250,000 to run an additional 2,000,000 sweeps) I am getting the "Cassandra Simulation Started, Cassandra Simulation Ended" without the OpenMP=T flag that I normally get and without running any of the sweeps for the new simulation.
Do you have any idea what could be causing this behavior?
Thanks,
Zeke
I am having an odd problem with Cassandra all of a sudden.
I have been running jobs (using units sweeps) for quite a long time. I have a simulation that has been run for 1,250,000 sweeps with a sweep defined as 1000 steps (the number of atoms in my GEMC simulation). However, when I try and restart the simulation from this point (and change the run command to 3,250,000 to run an additional 2,000,000 sweeps) I am getting the "Cassandra Simulation Started, Cassandra Simulation Ended" without the OpenMP=T flag that I normally get and without running any of the sweeps for the new simulation.
Do you have any idea what could be causing this behavior?
Thanks,
Zeke
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- piskuliche
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7 years 8 months ago #234
by piskuliche
Hello,
If it helps, this appears to be occurring only for systems with >1 component (i.e. it happens when I try and restart my binary simulations and not when I try to restart my pure component ones.
I would appreciate any suggestions you might have.
Thanks,
Zeke
If it helps, this appears to be occurring only for systems with >1 component (i.e. it happens when I try and restart my binary simulations and not when I try to restart my pure component ones.
I would appreciate any suggestions you might have.
Thanks,
Zeke
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- ryangmullen
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7 years 8 months ago #237
by ryangmullen
Hi Zeke,
Not sure what could be happening there. Can you confirm that the log file from your restarted simulation shows a sweep is defined as 1000 steps? The log file should have a line like:
A sweep is defined as 1000 steps
in the "Simulation length info" section.
Ryan
Not sure what could be happening there. Can you confirm that the log file from your restarted simulation shows a sweep is defined as 1000 steps? The log file should have a line like:
A sweep is defined as 1000 steps
in the "Simulation length info" section.
Ryan
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- piskuliche
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7 years 8 months ago #238
by piskuliche
Ryan,
Yeah, I don't know either. The log was one of the first things I checked, the "A sweep is defined as 1000 steps" is in the log file as expected.
I don't know if it helps - but could it be some behavior due to the number of sweeps? When I restart simulations that are < 1,250,000 sweeps they run, but restarting simulations that are at the 1,250,000 number do not run. For instance, could it be having trouble reading the 3,250,000 value for some reason?
Thanks for taking a look,
Zeke
Yeah, I don't know either. The log was one of the first things I checked, the "A sweep is defined as 1000 steps" is in the log file as expected.
I don't know if it helps - but could it be some behavior due to the number of sweeps? When I restart simulations that are < 1,250,000 sweeps they run, but restarting simulations that are at the 1,250,000 number do not run. For instance, could it be having trouble reading the 3,250,000 value for some reason?
Thanks for taking a look,
Zeke
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