A K-point mesh and Monkhorst-Pack

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The K-point mesh and Monkhorst-Pack are related concepts used in VASP calculations, with the Monkhorst-Pack method providing a regular sampling of the first Brillouin zone. The variation in K-point mesh size with increasing cell numbers can be attributed to different approaches in research papers, where some may increase the Monkhorst-Pack density while others decrease the K-point mesh. This discrepancy may stem from the exploitation of symmetries in the calculations. Understanding the specific context and definitions from resources like the VASP Wiki can clarify these differences. Further insights on this topic would be beneficial for deeper comprehension.
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I am confused as how these are used in VASP calculations
Are the K-point mesh and monkhorst pack same. I was reading research papers using VASP and in some papers as the number of cells increases the Monkhorst Pack increases but in others the K-Point mesh decreases. Could some one clarify how these are used in the calculations.
 
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Hej ramana3797,

I am not sure (since I sometimes read in this context how people babble about symmetries being exploited), so take this with a grain of salt, BUT...

In this article of the VASP-Wiki

https://www.vasp.at/wiki/index.php/KPOINTS

you find a concrete definition of the k-points in a Monkhorst-Pack-mesh. Looking at this expression reveals then, that the mesh seems to be just a "regular sampling of the first Brillouin-zone" but shifted. (The periodicity of band-structures allows for this shift.)

If you found out more about this, I would be happy to hear about it.

Hälsningar
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