2003-01-20 05:58:50 +08:00
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!
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! Copyright (C) 2001 PWSCF group
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! This file is distributed under the terms of the
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! GNU General Public License. See the file `License'
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! in the root directory of the present distribution,
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! or http://www.gnu.org/copyleft/gpl.txt .
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!
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!
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!-----------------------------------------------------------------------
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2003-02-08 00:04:36 +08:00
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subroutine psymdvscf (nper, irr, dvtosym)
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2003-01-20 05:58:50 +08:00
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!-----------------------------------------------------------------------
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! p-symmetrize the charge density.
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!
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2004-06-26 01:25:37 +08:00
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#include "f_defs.h"
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2003-02-21 22:57:00 +08:00
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#ifdef __PARA
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2003-01-20 05:58:50 +08:00
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2003-02-08 00:04:36 +08:00
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use pwcom
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2004-01-23 23:08:03 +08:00
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USE kinds, only : DP
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2003-02-08 00:04:36 +08:00
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use phcom
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use para
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implicit none
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integer :: nper, irr
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2003-01-20 05:58:50 +08:00
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! the number of perturbations
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! the representation under consideration
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2003-02-08 00:04:36 +08:00
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complex(kind=DP) :: dvtosym (nrxx, nspin, nper)
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2003-01-20 05:58:50 +08:00
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! the potential to symmetrize
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!-local variable
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2003-02-08 00:04:36 +08:00
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integer :: i, is, iper, npp0
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complex(kind=DP), allocatable :: ddvtosym (:,:,:)
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2003-01-20 05:58:50 +08:00
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! the potential to symm
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2003-02-08 00:04:36 +08:00
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if (nsymq.eq.1.and. (.not.minus_q) ) return
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call start_clock ('psymdvscf')
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2003-01-20 05:58:50 +08:00
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2003-02-08 00:04:36 +08:00
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allocate (ddvtosym ( nrx1 * nrx2 * nrx3, nspin, nper))
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npp0 = 1
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do i = 1, me-1
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npp0 = npp0 + npp (i) * ncplane
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2003-01-20 05:58:50 +08:00
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enddo
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2003-02-08 00:04:36 +08:00
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do iper = 1, nper
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do is = 1, nspin
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call cgather_sym (dvtosym (1, is, iper), ddvtosym (1, is, iper) )
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enddo
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enddo
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2003-02-08 00:04:36 +08:00
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call symdvscf (nper, irr, ddvtosym)
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do iper = 1, nper
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do is = 1, nspin
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2003-01-20 05:58:50 +08:00
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call ZCOPY (npp (me) * ncplane, ddvtosym (npp0, is, iper), &
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1, dvtosym (1, is, iper), 1)
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enddo
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enddo
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2003-02-08 00:04:36 +08:00
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deallocate (ddvtosym)
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2003-02-08 00:04:36 +08:00
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call stop_clock ('psymdvscf')
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#endif
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return
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end subroutine psymdvscf
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