Search found 36 matches

by topgun
Wed Oct 18, 2017 1:18 pm
Forum: Electron-phonon
Topic: supercell approach in EPW
Replies: 2
Views: 9197

supercell approach in EPW

Dear all,

I know that EPW uses DFPT method for phonon calculation. Is supercell approach also implemented in EPW

TOP GUN
by topgun
Wed Oct 18, 2017 5:56 am
Forum: General discussion
Topic: Does quantum espresso and EPW have "massive parallelism"
Replies: 4
Views: 4444

Re: Does quantum espresso and EPW have "massive parallelism"

Dear sir,

What do you mean by the "status" of QE.
I simply wanted to know if QE can be run using GPU.
"Ofcourse QE can be run using hundred of CPU in parallel "
My query is about GPU not CPU


TOP GUN
by topgun
Fri Oct 13, 2017 9:24 am
Forum: General discussion
Topic: Does quantum espresso and EPW have "massive parallelism"
Replies: 4
Views: 4444

Does quantum espresso and EPW have "massive parallelism"

dear all,

Does quantum espresso and EPW have "massive parallelism" runnable versions.
Does QE have GPU implimentation.

REGARDS
TOP GUN
by topgun
Fri Aug 04, 2017 9:21 am
Forum: General discussion
Topic: calculation of superconducting transition temperature
Replies: 2
Views: 4025

calculation of superconducting transition temperature

dear all,

how much time does it take to calculate superconducting transition temperature of a unit cell containing 4 atoms.
how many cores are required for running this system.
what are the average output(how many MB/GB) files produced during this run.
by topgun
Thu Aug 03, 2017 1:43 pm
Forum: General discussion
Topic: to calculate superconducting transition temp and el-ph const
Replies: 1
Views: 2853

to calculate superconducting transition temp and el-ph const

Dear all, I am trying to calculate superconducting transition temp and el-ph coupling constant. But the calculations are taking days even with 8 cores run in parallel and I do not think more cores are helping in any way. I want to know if there is easier and faster way to calculate the above quantit...
by topgun
Thu Aug 03, 2017 1:39 pm
Forum: General discussion
Topic: query about learning epw
Replies: 1
Views: 2807

query about learning epw

is it necessary to learn QE in order to use EPW for el-ph coupling and superconducting transition temp calcultions.
can not i straight forwardly jump into using EPW