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I am trying to perform elastic tensor calculations for two structures but the calculations don't complete before I hit the 48h walltime limit on my HPC (knowing that IBRION=6 calculations cannot be restarted). I have attached the input files for the two structures - are there any changes that could be made to reduce calculation time?

Thanks,

Will

Dear Will,

Since your systems are relatively large, could you provide me with the OUTCAR files so that I can see where VASP is taking too long? It will help me with figuring out a possible solution.

Kind regards,
Pedro