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[Matthieu Verstraete <mjv500@york.ac.uk>]

Hello Shinekin,

I'm not sure exactly what you are referring to, but in principle you're 
right, the integrated DOS is just the integral, and there shouldn't be any 
particular difference. The DOS is built, in the standard version, from a 
sum of dirac peaks which are smeared with the electronic temperature. If 
you use a very small smearing the peaks will be huge to get the correct 
integrated weight. The integrated DOS will have a jump but is usually much 
smoother (what with being integrated and all).

Use a larger smearing or, (even better), a denser kpoint set, or the 
tetrahedron method, which gives a continuous curve. See prtdos 1 2 3.

Matthieu

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Dr. Matthieu Verstraete                 mailto:mjv500@york.ac.uk
Dept. of Physics, University of York,     tel: +44 1904 43 22 08
Heslington, YO10 5DD York, United Kingdom fax: +44 1904 43 22 14