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Hello,

I am trying to reproduce a MD result in version before VASP5.2.12. And I know in VASP 5.2.12, there is a tag named RANDOM_SEED, which could be specified in INCAR in order to reproduce previous result. The problem is my previous calculation was performed in older version, I did not specify the random seed. Then how can I reproduce that result? Is there a file containing the random seed chosen by machine?

Thank you very much!


Ping

An MD simulation in older version can be continued (starting from CONTCAR) but not reproduced. This is allowed only using RANDOM_SEED. To use this tag one needs to compile vasp.5.2.12 with tbdyn http://cms.mpi.univie.ac.at/vasp/vasp/A ... iques.html
and follow instructions in
http://cms.mpi.univie.ac.at/vasp/vasp/RANDOM_SEED.html.
To reproduce an MD simulation use
RANDOM_SEED = xxx yyy,
where xxx and yyy are two numbers in the first RANDOM_SEED line
in REPORT file of the MD to be reproduced.

Thanks a lot!