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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Dear Wannier developers & experts,
<div>I am working on a number of 2D systems using VASP+Wannier90.x+postw90.x, I tested both 1.2 and 2.0 version and may I ask some questions:</div>
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<div>1. Seems only 2.0 version has postw90.x dealing with berry curvature, but as I first run recompiled vasp, it finishes without generating *eig,*mmn files, and if I then run wannier90.x, .werr will show that cannot read from *eig, *mmn files ---in fact no
such files are generated.</div>
<div> But for wannier90-1.2version, the first step by vasp will generate *eig, *mmn files and everything goes smoothly.</div>
<div> So the problem is, will it be ok I first run vasp+ wannier90.x in --1.2 version, and the use postw90.x in --2.0 version?</div>
<div> Or is there anyway to solve the problems in the first step that vaspwannier90--2.0.0 cannot generate *eig,*mmn files?</div>
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<div>2. Another problem is that I can only set KPOINTS as:</div>
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<div>Automatic mesh</div>
<div>0</div>
<div>Monkhorst</div>
<div>3 3 1</div>
<div>0.0 0.0 0.0</div>
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<div>If I set a denser value like 4 4 1, *wout will show error below:</div>
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<div> The b-vectors are chosen automatically |</div>
<div> Exiting.......</div>
<div> kmesh_get_bvector: Not enough bvectors found</div>
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<div>Is there anyway to solve this problem so I can set a denser grid? I tried increasing search_shells=51, increasing kmesh_tol=0.0035, but</div>
<div>still cannot work.</div>
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<div>Thank you very much and your help is highly appreciated!</div>
<div>Best regards</div>
<div>Wu</div>
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