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qp_plugins_scemama/devel/cc/amplitude_guess.irp.f
2019-09-11 17:09:30 +02:00

107 lines
2.5 KiB
Fortran

BEGIN_PROVIDER [ double precision, t1_guess, (spin_occ_num,spin_vir_num) ]
implicit none
BEGIN_DOC
! Guess amplitudes for single excitations
END_DOC
t1_guess(:,:) = 0d0
if (cc_guess == 1) then
integer :: iunit
integer, external :: getunitandopen
character :: check
integer :: i, a
double precision :: amplitude
iunit = getunitandopen('t1','r')
read(iunit,*)
do
read(iunit,*,err=10) i, a, amplitude
i = 2*i-1
a = 2*a-1 - spin_occ_num
t1_guess(i,a) = amplitude
enddo
10 continue
do
read(iunit,*,end=20) i, a, amplitude
i = 2*i
a = 2*a - spin_occ_num
t1_guess(i,a) = amplitude
enddo
20 continue
close(iunit)
else if (cc_guess == 2) then
call random_number(t1_guess)
t1_guess *= 1.d-3
endif
END_PROVIDER
BEGIN_PROVIDER [ double precision, t2_guess, (spin_occ_num,spin_occ_num,spin_vir_num,spin_vir_num) ]
implicit none
BEGIN_DOC
! Guess amplitudes for double excitations
END_DOC
t2_guess(:,:,:,:) = OOVV(:,:,:,:)/delta_OOVV(:,:,:,:)
if (cc_guess == 1) then
t2_guess(:,:,:,:) = 0.d0
integer :: iunit
integer, external :: getunitandopen
character :: check
integer :: i, j, a, b
double precision :: amplitude
iunit = getunitandopen('t2','r')
read(iunit,*)
do
read(iunit,*,err=10) i, j, a, b, amplitude
i = 2*i-1
j = 2*j-1
a = 2*a-1 - spin_occ_num
b = 2*b-1 - spin_occ_num
!100 format (4(I3,X), 2(F20.10,X))
!print 100, i,j,a,b,t2_guess(i,j,a,b) , amplitude
t2_guess(i,j,a,b) = amplitude
enddo
10 continue
do
read(iunit,*,err=20) i, j, a, b, amplitude
i = 2*i
j = 2*j
a = 2*a - spin_occ_num
b = 2*b - spin_occ_num
!print 100, i,j,a,b,t2_guess(i,j,a,b) , amplitude
t2_guess(i,j,a,b) = amplitude
enddo
20 continue
do
read(iunit,*,end=30) i, j, a, b, amplitude
i = 2*i-1
j = 2*j
a = 2*a-1 - spin_occ_num
b = 2*b - spin_occ_num
!print 100, i,j,a,b,t2_guess(i,j,a,b) , amplitude
t2_guess(i,j,a,b) = amplitude
!print 100, i,j,a,b,t2_guess(i,j,b,a) , -amplitude
t2_guess(i,j,b,a) = -amplitude
i = i+1
j = j-1
a = a+1
b = b-1
!print 100, i,j,a,b,t2_guess(i,j,a,b) , amplitude
t2_guess(i,j,a,b) = amplitude
!print 100, i,j,a,b,t2_guess(i,j,b,a) , -amplitude
t2_guess(i,j,b,a) = -amplitude
enddo
30 continue
close(iunit)
else if (cc_guess == 2) then
call random_number(t2_guess)
t2_guess *= 1.d-3
endif
END_PROVIDER