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Hello,

We have been calculating huge structures (403 atoms) and we have encountered a warning for the first time in the vasp OUTCAR
WARNING: CHECK: NIOND is too small
at each geometry optimization, but the job is still runing and converges toward something physical.
Has someone heard of such a problem ?

Thanks

JS

NIOND is set to 256 (as a parameter) in dyna.F. Please increase this number (PARAMETER (NIOND=256) ) and recompile vasp

To revive this: Ok, that solution works fine, but how about the normal-looking results obtained before the change? Can we trust those forces?

Thanks
Tyx