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15% acceleration in AOs
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@ -714,16 +714,13 @@ subroutine integrale_new(I_f,a_x,b_x,c_x,d_x,a_y,b_y,c_y,d_y,a_z,b_z,c_z,d_z,p,q
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implicit none
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double precision :: p,q
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double precision :: I_x1_new, I_x2_new
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integer :: a_x,b_x,c_x,d_x,a_y,b_y,c_y,d_y,a_z,b_z,c_z,d_z
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integer :: i, n_iter, n_pt, j
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double precision :: accu, I_f, pq_inv, p10_1, p10_2, p01_1, p01_2
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double precision :: accu, I_f, pq_inv, p10_1, p10_2, p01_1, p01_2,rho,pq_inv_2
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integer :: ix,iy,iz, jx,jy,jz, sx,sy,sz
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j = ishft(n_pt,-1)
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accu = 0.d0
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!if(iand(a_x+b_x+c_x+d_x,1).eq.1.or.iand(a_y+b_y+c_y+d_y,1).eq.1.or.iand(a_z+b_z+c_z+d_z,1).eq.1)then
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! I_f = 0.d0
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!else
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ASSERT (n_pt > 1)
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pq_inv = 0.5d0/(p+q)
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pq_inv_2 = pq_inv + pq_inv
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@ -731,62 +728,86 @@ subroutine integrale_new(I_f,a_x,b_x,c_x,d_x,a_y,b_y,c_y,d_y,a_z,b_z,c_z,d_z,p,q
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p01_1 = 0.5d0/q
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p10_2 = 0.5d0 * q /(p * q + p * p)
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p01_2 = 0.5d0 * p /(q * q + q * p)
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double precision :: B10, B01, B00, flush_buffer,flush_buffer_one,rho,pq_inv_2
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double precision :: B10(n_pt), B01(n_pt), B00(n_pt)
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double precision :: t1(n_pt), t2(n_pt), t3(n_pt)
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ix = a_x+b_x
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jx = c_x+d_x
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iy = a_y+b_y
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jy = c_y+d_y
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iz = a_z+b_z
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jz = c_z+d_z
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do i = 1,n_pt
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B10 = p10_1 - gauleg_t2(i,j)* p10_2
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B01 = p01_1 - gauleg_t2(i,j)* p01_2
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B00 = gauleg_t2(i,j)*pq_inv
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flush_buffer = 0.d0
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flush_buffer_one = 1.d0
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accu += gauleg_w(i,j)*I_x1_new(a_x+b_x,c_x+d_x,B10,B01,B00,flush_buffer)&
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*I_x1_new(a_y+b_y,c_y+d_y,B10,B01,B00,flush_buffer_one) &
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*I_x1_new(a_z+b_z,c_z+d_z,B10,B01,B00,flush_buffer_one)
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B10(i) = p10_1 - gauleg_t2(i,j)* p10_2
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B01(i) = p01_1 - gauleg_t2(i,j)* p01_2
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B00(i) = gauleg_t2(i,j)*pq_inv
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enddo
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call I_x1_new(ix,jx,B10,B01,B00,t1,n_pt)
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call I_x1_new(iy,jy,B10,B01,B00,t2,n_pt)
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call I_x1_new(iz,jz,B10,B01,B00,t3,n_pt)
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do i = 1,n_pt
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accu += gauleg_w(i,j)*t1(i)*t2(i)*t3(i)
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enddo
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I_f= accu
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!endif
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end
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recursive double precision function I_x1_new(a,c,B_10,B_01,B_00,I_0000) result(res)
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recursive subroutine I_x1_new(a,c,B_10,B_01,B_00,res,n_pt)
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BEGIN_DOC
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! recursive function involved in the bielectronic integral
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END_DOC
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implicit none
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integer, intent(in) :: a,c
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double precision, intent(in) :: B_10,B_01,B_00
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double precision, intent(in) :: I_0000
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double precision :: I_x2_new
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integer, intent(in) :: a,c,n_pt
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double precision, intent(in) :: B_10(n_pt),B_01(n_pt),B_00(n_pt)
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double precision, intent(out) :: res(n_pt)
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double precision :: res2(n_pt)
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integer :: i
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if(c<0)then
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res = 0.d0
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do i=1,n_pt
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res(i) = 0.d0
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enddo
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else if (a==0) then
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res = I_x2_new(c,B_10,B_01,B_00,I_0000)
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call I_x2_new(c,B_10,B_01,B_00,res,n_pt)
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else if (a==1) then
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res = c * B_00 * I_x2_new(c-1,B_10,B_01,B_00,I_0000)
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call I_x2_new(c-1,B_10,B_01,B_00,res,n_pt)
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do i=1,n_pt
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res(i) = c * B_00(i) * res(i)
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enddo
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else
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res = (a-1) * B_10 * I_x1_new(a-2,c,B_10,B_01,B_00,I_0000) &
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&+ c * B_00 * I_x1_new(a-1,c-1,B_10,B_01,B_00,I_0000)
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call I_x1_new(a-2,c,B_10,B_01,B_00,res,n_pt)
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call I_x1_new(a-1,c-1,B_10,B_01,B_00,res2,n_pt)
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do i=1,n_pt
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res(i) = (a-1) * B_10(i) * res(i) &
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+ c * B_00(i) * res2(i)
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enddo
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endif
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end
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recursive double precision function I_x2_new(c,B_10,B_01,B_00,I_0000) result(res)
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recursive subroutine I_x2_new(c,B_10,B_01,B_00,res,n_pt)
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implicit none
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BEGIN_DOC
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! recursive function involved in the bielectronic integral
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END_DOC
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integer, intent(in) :: c
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double precision, intent(in) :: B_10,B_01,B_00,I_0000
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double precision :: I_x1_new
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integer, intent(in) :: c, n_pt
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double precision, intent(in) :: B_10(n_pt),B_01(n_pt),B_00(n_pt)
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double precision, intent(out) :: res(n_pt)
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integer :: i
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if(c==1)then
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res = 0.d0
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do i=1,n_pt
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res(i) = 0.d0
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enddo
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elseif(c==0) then
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res = 1.d0
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do i=1,n_pt
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res(i) = 1.d0
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enddo
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else
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res = (c-1) * B_01 * I_x1_new(0,c-2,B_10,B_01,B_00,I_0000)
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call I_x1_new(0,c-2,B_10,B_01,B_00,res,n_pt)
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do i=1,n_pt
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res(i) = (c-1) * B_01(i) * res(i)
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enddo
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endif
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end
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