diff --git a/source/KKRhost/main1b.F90 b/source/KKRhost/main1b.F90
index 657266646168633aa8bcf2f46018c4d04dedb70a..f7dda9d8074ad2279d2ea3b31b679368387dc543 100644
--- a/source/KKRhost/main1b.F90
+++ b/source/KKRhost/main1b.F90
@@ -37,7 +37,7 @@ contains
use :: mod_datatypes, only: dp, sp
use :: mod_runoptions, only: calc_exchange_couplings, formatted_file, set_gmat_to_zero, use_Chebychev_solver, &
use_qdos, use_readcpa, write_deci_tmat, write_gmat_plain, write_green_host, write_green_imp, write_kkrimp_input, &
- write_pkkr_input, write_pkkr_operators, write_rhoq_input, write_gmat_ascii, decouple_spin_cheby
+ write_pkkr_input, write_pkkr_operators, write_rhoq_input, write_gmat_ascii, decouple_spin_cheby, write_double_precision
use mod_constants, only: czero, cone, pi
use mod_operators_for_fscode, only: operators_for_fscode
use mod_getscratch, only: opendafile
@@ -357,8 +357,13 @@ contains
if ((write_kkrimp_input)) then
! ! Green functions has (lmmaxd*natomimp)**2 double complex (i.e. factor '4') values
! RECLENGTH = WLENGTH*4*NATOMIMP*LMMAXD*NATOMIMP*LMMAXD
- ! at the moment kkrflex_green file is only written with single precision (factor'2')
- reclength = wlength*2*natomimp*lmmaxd*natomimp*lmmaxd
+ if ( write_double_precision ) then
+ ! this is used to write double precision files (factor'4')
+ reclength = wlength*4*natomimp*lmmaxd*natomimp*lmmaxd
+ else
+ ! at the moment kkrflex_green file is only written with single precision (factor'2')
+ reclength = wlength*2*natomimp*lmmaxd*natomimp*lmmaxd
+ end if
! sometimes (lmax=2) the record length might be too small to store the parameters, then reclength needs to be bigger
if (reclength<8*ielast+6) then
stop '[main1b] record length for kkrflex_green is too small to store parameters, use either more atoms in the cluster, a higher lmax or less energy points'
diff --git a/source/KKRhost/rotgll.F90 b/source/KKRhost/rotgll.F90
index fbb0c3f8f38d8759d0e1a31da3d2d6c250f2caab..c396d06299ab5c75a2ea5e0213b7e3fc2991bcde 100644
--- a/source/KKRhost/rotgll.F90
+++ b/source/KKRhost/rotgll.F90
@@ -53,7 +53,7 @@ contains
use :: mod_mympi, only: myrank, master
use :: mod_datatypes, only: dp, sp
- use :: mod_runoptions, only: print_Gij, write_gmat_plain, write_green_host, write_kkrimp_input
+ use :: mod_runoptions, only: print_Gij, write_gmat_plain, write_green_host, write_kkrimp_input, write_double_precision
use :: mod_changerep
use :: mod_cmatstr
use :: mod_constants, only: czero, cone
@@ -193,7 +193,12 @@ contains
#endif
! force single precision complex writeout to minimize file size etc.
! maybe this can be removed in the future
- write (888, rec=irec) cmplx(gclust, kind=sp)
+ if ( write_double_precision ) then
+ write (888, rec=irec) gclust
+ else
+ write (888, rec=irec) cmplx(gclust, kind=sp)
+ end if
+
if ((write_gmat_plain)) then
write (8888, '(50000E25.16)') gclust
end if
diff --git a/source/KKRimp/preconditioning.F90 b/source/KKRimp/preconditioning.F90
index 7e1215a127ffefbb9160adb421e9c2cf0ad0eff4..966d02dfc0cb61044a118f97bd1607ce250f49eb 100644
--- a/source/KKRimp/preconditioning.F90
+++ b/source/KKRimp/preconditioning.F90
@@ -2,51 +2,51 @@ module mod_preconditioning
contains
subroutine preconditioning_start(my_rank,mpi_size,ez, wez, ielast, intercell_ach, alat,vmtzero,lattice_relax,gmatbulk)
#ifdef CPP_MPI
- use mpi
+ use mpi
#endif
- use nrtype
- use mod_dysonvirtatom, only: dysonvirtatom
- use mod_read_atominfo
- use mod_config, only: config_testflag,config_runflag
- use mod_log, only: log_write
- use mod_mpienergy, only: mpienergy_distribute
- use type_gmatbulk
- use mod_types, only: t_inc
-
- implicit none
+ use nrtype
+ use mod_dysonvirtatom, only: dysonvirtatom
+ use mod_read_atominfo
+ use mod_config, only: config_testflag,config_runflag
+ use mod_log, only: log_write
+ use mod_mpienergy, only: mpienergy_distribute
+ use type_gmatbulk
+ use mod_types, only: t_inc
+
+ implicit none
!interface
- double complex,allocatable,intent(out) :: ez(:)
- double complex,allocatable,intent(out) :: wez(:)
- integer,intent(out) :: ielast
- real(kind=DP),allocatable,intent(out) :: intercell_ach(:,:) ! intercell potential
- !(lmpotd,ntotatom),achnew(lmpotd,ntotatom)
- real(kind=DP),intent(out) :: alat
- real(kind=dp) :: vmtzero(2)
- integer :: lattice_relax
- type(gmatbulk_type) :: gmatbulk
+ double complex,allocatable,intent(out) :: ez(:)
+ double complex,allocatable,intent(out) :: wez(:)
+ integer,intent(out) :: ielast
+ real(kind=DP),allocatable,intent(out) :: intercell_ach(:,:) ! intercell potential
+ real(kind=DP),intent(out) :: alat
+ real(kind=dp) :: vmtzero(2)
+ integer :: lattice_relax
+ type(gmatbulk_type) :: gmatbulk
!local
-
- integer :: natom ! number of impurity atoms
- integer :: ntotatom ! number of imp atoms+killatoms
- integer,allocatable :: lmaxatom(:) ! lmax for all atoms
- integer,allocatable :: isvatom(:) ! 1=vatom (delta t=0), 0=no vatom
- integer,allocatable :: killatom(:) ! 1=atom will be removed in a dyson step
- integer :: KGREFSOC ! =1 if SOC for the GREF
- integer :: NSOC ! =2 if SOC for the GREF else: =1
-
- integer :: ie
- integer :: natomimpd,lmsizehost
- double complex,allocatable :: gmathost(:,:)
- double complex,allocatable :: gmathostnew(:,:)
- integer :: recl1,recl2,nspin,ispin,iatom
- double complex,allocatable :: tmat(:,:,:,:,:)
- integer :: nlmhostnew
- real(kind=dp),allocatable :: RIMPATOM(:,:),zatom(:)
- integer :: lmaxd
+ integer :: natom ! number of impurity atoms
+ integer :: ntotatom ! number of imp atoms+killatoms
+ integer,allocatable :: lmaxatom(:) ! lmax for all atoms
+ integer,allocatable :: isvatom(:) ! 1=vatom (delta t=0), 0=no vatom
+ integer,allocatable :: killatom(:) ! 1=atom will be removed in a dyson step
+ integer :: KGREFSOC ! =1 if SOC for the GREF
+ integer :: NSOC ! =2 if SOC for the GREF else: =1
+
+ integer :: ie
+ integer :: natomimpd,lmsizehost
+ double complex,allocatable :: gmathost(:,:)
+ double complex,allocatable :: gmathostnew(:,:)
+ integer :: recl1,recl2,nspin,ispin,iatom
+ double complex,allocatable :: tmat(:,:,:,:,:)
+ integer :: nlmhostnew
+ real(kind=dp),allocatable :: RIMPATOM(:,:),zatom(:)
+ integer :: lmaxd
+ character (len=15) :: precision_mode
!mpi
- integer,allocatable :: mpi_iebounds(:,:)
- integer :: my_rank
- integer :: mpi_size,ierror
+ integer, allocatable :: mpi_iebounds(:,:)
+ integer :: my_rank
+ integer :: mpi_size,ierror
+
call log_write('>>>>>>>>>>>> preconditioning read_atominfo >>>>>>>>>>>>>>>>>>>>>')
call read_atominfo('total','kkrflex_atominfo',natom,ntotatom,RIMPATOM,&
@@ -170,6 +170,7 @@ allocate(gmathostnew(nlmhostnew,nlmhostnew))
! ###########################################
recl1=wlength*2*natomimpd*lmsizehost*natomimpd*lmsizehost
+if (config_testflag('read_doubleprecision')) recl1 = recl1 * 2
recl2=wlength*4*nlmhostnew*nlmhostnew
open (88,access='direct',recl=recl1,file='kkrflex_green',form='unformatted')
if (lattice_relax==0) then
@@ -207,7 +208,14 @@ do ie=mpi_iebounds(1,my_rank),mpi_iebounds(2,my_rank)
do ispin=1,nspin-KGREFSOC
if (t_inc%i_write>0) write(1337,*) 'proc = ',my_rank,' IE = ',ie,' ispin= ',ispin
- call preconditioning_readgreenfn(ie,ispin,ielast,lmsizehost,ntotatom,gmathost,'singleprecision')
+ if ( config_testflag('read_doubleprecision') ) then
+ if (t_inc%i_write>0) write(*,*) 'ATTENTION: read kkrflex_green in double precision'
+ precision_mode = 'doubleprecision'
+ else
+ precision_mode = 'singleprecision'
+ end if
+
+ call preconditioning_readgreenfn(ie,ispin,ielast,lmsizehost,ntotatom,gmathost,precision_mode)
! in in in in out
if(config_testflag('gtest')) write(10000+my_rank,'(832E25.14)') gmathost
@@ -492,7 +500,11 @@ subroutine preconditioning_readenergy(my_rank,IELAST,NSPIN,EZ,WEZ,NATOMIMPD,NTOT
! *******************************************************************
if (my_rank==0) then
write(*,*) 'my_rank=1 reads kkrflex_green and communicates to other processes'
- OPEN (88,ACCESS='direct',RECL=wlength*2*16,FILE='kkrflex_green',FORM='unformatted')
+ if (config_testflag('read_doubleprecision')) then
+ OPEN (88,ACCESS='direct',RECL=wlength*4*16,FILE='kkrflex_green',FORM='unformatted')
+ else
+ OPEN (88,ACCESS='direct',RECL=wlength*2*16,FILE='kkrflex_green',FORM='unformatted')
+ end if
read(88,rec=1) ielasttemp,nspintemp,natomimpd,natomimp,lmsizehosttemp,kgrefsoctemp
if (kgrefsoctemp/=kgrefsoc) then
@@ -540,6 +552,7 @@ subroutine preconditioning_readenergy(my_rank,IELAST,NSPIN,EZ,WEZ,NATOMIMPD,NTOT
! *******************************************************************
allocate( ez(ielast), wez(ielast) )
RECL1=wlength*2*NATOMIMPD*lmsizehost*NATOMIMPD*lmsizehost
+ if (config_testflag('read_doubleprecision')) RECL1 = 2 * RECL1
OPEN (88,ACCESS='direct',RECL=RECL1,FILE='kkrflex_green',FORM='unformatted')
if ( .not. config_runflag('oldJMcode') ) then
read(88,rec=1) ielasttemp,nspintemp,natomimpd,NATOMIMP,lmsizehosttemp,kgrefsoctemp,(ez(ie),ie=1,ielast),(wez(ie),ie=1,ielast)
diff --git a/source/common/runoptions.F90 b/source/common/runoptions.F90
index 47a17bf93d530739c24fcb37f65c989c1a67f6e5..e4e73da644e21930d0ac32cc2defc1c5d9a4640a 100644
--- a/source/common/runoptions.F90
+++ b/source/common/runoptions.F90
@@ -122,6 +122,7 @@ module mod_runoptions
logical :: use_broyden_spinmix = .false. !! use broyden spin mixing for noncollinear angles
logical :: write_angles_alliter= .false. !! write out noncollinear angles for all iterations
logical :: write_tmat_all= .false. !! write out the tmat for all atoms and energies
+ logical :: write_double_precision= .false. !! write out kkrflex files in double precision
!some old run and test options have been removed:
! 'atptshft': replaced by presence or absence of IVSHIFT in inputcard
@@ -245,6 +246,7 @@ module mod_runoptions
call set_runoption(use_broyden_spinmix , '<use_broyden_spinmix>' , '<bryspinmix>')
call set_runoption(write_angles_alliter , '<write_angles_alliter>')
call set_runoption(write_tmat_all , '<write_tmat_all>')
+ call set_runoption(write_double_precision , '<write_double_precision>')
end subroutine read_runoptions
@@ -789,6 +791,7 @@ module mod_runoptions
call mpi_bcast(use_broyden_spinmix , 1, mpi_logical, master, mpi_comm_world, ierr)
call mpi_bcast(write_angles_alliter , 1, mpi_logical, master, mpi_comm_world, ierr)
call mpi_bcast(write_tmat_all , 1, mpi_logical, master, mpi_comm_world, ierr)
+ call mpi_bcast(write_double_precision , 1, mpi_logical, master, mpi_comm_world, ierr)
end subroutine bcast_runoptions
#endif
@@ -905,6 +908,7 @@ module mod_runoptions
write(iounit, '(A35,1x,1L,3x,A)') '<use_broyden_spinmix>=', use_broyden_spinmix, "use broyden spin mixing for noncollinear angles"
write(iounit, '(A35,1x,1L,3x,A)') '<write_angles_alliter>=', write_angles_alliter, "write out noncollinear angles for all iterations"
write(iounit, '(A35,1x,1L,3x,A)') '<write_tmat_all>=', write_tmat_all, "write out the tmat for all energies and all atoms"
+ write(iounit, '(A35,1x,1L,3x,A)') '<write_double_precision>=', write_double_precision, "write out kkrflex files in double precision"
end subroutine print_runoptions