Speed of VASP job on cluster
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prodyutroy
- Newbie
- Posts: 1
- Joined: Fri Nov 03, 2017 12:13 pm
- License Nr.: 5-2925
Speed of VASP job on cluster
When I am running a vasp job on a cluster assigning 32 nos. of cores on a single node the job completes two to three times more faster than that when I am running the same job with same or more no. of cores sharing on two nodes. Why is this happenning ?
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alex
- Hero Member
- Posts: 586
- Joined: Tue Nov 16, 2004 2:21 pm
- License Nr.: 5-67
- Location: Germany
Re: Speed of VASP job on cluster
Hi,
you have a very slow network connection or did not adapt NPAR/KPAR.
Cheers,
alex
you have a very slow network connection or did not adapt NPAR/KPAR.
Cheers,
alex