EPW Forum

Posted: **Tue Dec 19, 2017 11:15 am**

Dear developers,
I met a problem as
' from epw_setup : error # 1
coarse k-mesh needs to be strictly positive in 1st BZ'
when I ran epw.4.1 in QE 6.2.
What the corase k-mesh mentioned in the error?

Thanks!

Shudong

Posted: **Wed Dec 20, 2017 2:13 pm**

Dear Shudong,

The nscf calculation that you do just before EPW should be done on an homogeneous grid between 0 and 1.

Best,
Samuel

Posted: **Thu Dec 21, 2017 6:30 am**

Thank you Samuel,
I have fixed it by setting nosy=.true.' in the nscf input file.

Best,

Shudong

EPW Forum

coarse k-mesh needs to be strictly positive in 1st BZ

coarse k-mesh needs to be strictly positive in 1st BZ

Re: coarse k-mesh needs to be strictly positive in 1st BZ

Re: coarse k-mesh needs to be strictly positive in 1st BZ