All requests for technical support from the VASP group must be addressed to: firstname.lastname@example.org
The INCAR file is the central input file of VASP. It determines "what to do and how to do it". There is a relatively large number of parameters that may be set by means of tags in the INCAR file. Most of these parameters have convenient defaults, and a user unaware of their meaning should not change any of the default values.