[Pw_forum] difference between nr1 and nrx1

[Timo Thonhauser]

Dear Developers,

What is the difference between nr1, nr2, nr3 and nrx1, nrx2, nrx3
in the code? For all practical purposes they always seem to be
the same.

In PW/pwcom.f90 we find:

   nr1,           &! fft dimension along x
   nr2,           &! fft dimension along y
   nr3,           &! fft dimension along z
   nrx1,          &! maximum fft dimension along x
   nrx2,          &! maximum fft dimension along y
   nrx3,          &! maximum fft dimension along z

But when would nr1 differ from nrx1?

Thanks a lot!
Timo

-- 
______________________________________________________________________

Dr. TIMO THONHAUSER
Department of Materials Science and Engineering         (617) 253 6026
MIT, 13-4084, 77 Massachusetts Avenue               thonhauser at mit.edu
Cambridge, MA 02139-4307, USA                    www.mit.edu/~thonhaus
______________________________________________________________________