[Commits] [svn:einsteintoolkit] GRHydro/trunk/src/ (Rev. 331)

[roland.haas at physics.gatech.edu]

User: rhaas
Date: 2012/05/14 10:31 AM

Added:
 /trunk/src/
  GRHydro_Analysis.F90

Log:
 GRHydro: add file missing from r330

File Changes:

Directory: /trunk/src/
======================

File [added]: GRHydro_Analysis.F90
Delta lines: +91 -0
===================================================================
--- trunk/src/GRHydro_Analysis.F90	                        (rev 0)
+++ trunk/src/GRHydro_Analysis.F90	2012-05-14 15:31:15 UTC (rev 331)
@@ -0,0 +1,91 @@
+
+#include "cctk.h"
+#include "cctk_Arguments.h"
+#include "cctk_Parameters.h"
+#include "cctk_Functions.h"
+#include "SpaceMask.h"
+
+subroutine GRHydro_Analysis_Init(CCTK_ARGUMENTS)
+
+  implicit none
+
+  DECLARE_CCTK_ARGUMENTS
+  DECLARE_CCTK_PARAMETERS
+  DECLARE_CCTK_FUNCTIONS
+
+  CCTK_INT :: i,j,k
+  !$OMP PARALLEL DO PRIVATE(i,j,k)
+  do k = GRHydro_stencil + 1 - transport_constraints, cctk_lsh(3) - GRHydro_stencil ! we need to compute Evec on all faces/edges where the fluxes are defined
+     do j = GRHydro_stencil + 1 - transport_constraints, cctk_lsh(2) - GRHydro_stencil
+        do i = GRHydro_stencil + 1 - transport_constraints, cctk_lsh(1) - GRHydro_stencil
+           divB(i,j,k) = 0.0d0
+        end do
+     end do
+  end do
+  !$OMP END PARALLEL DO
+
+end subroutine GRHydro_Analysis_Init
+
+subroutine GRHydro_CalcDivB(CCTK_ARGUMENTS)
+    
+  implicit none
+
+  DECLARE_CCTK_ARGUMENTS
+  DECLARE_CCTK_PARAMETERS
+  DECLARE_CCTK_FUNCTIONS
+
+  CCTK_INT :: i,j,k,itracer
+  CCTK_REAL :: idx, idy, idz, Bcons_l1, Bcons_r1, Bcons_l2, Bcons_r2, Bcons_l3, Bcons_r3
+
+  idx = 1.d0 / CCTK_DELTA_SPACE(1)
+  idy = 1.d0 / CCTK_DELTA_SPACE(2)
+  idz = 1.d0 / CCTK_DELTA_SPACE(3)
+
+      !$OMP PARALLEL DO PRIVATE(i,j,k,itracer,Bcons_l1,Bcons_r1,Bcons_l2,Bcons_r2,Bcons_l3,Bcons_r3)
+      do k = GRHydro_stencil + 1 - transport_constraints, cctk_lsh(3) - GRHydro_stencil ! we need to compute Evec on all faces/edges where the fluxes are defined
+        do j = GRHydro_stencil + 1 - transport_constraints, cctk_lsh(2) - GRHydro_stencil
+          do i = GRHydro_stencil + 1 - transport_constraints, cctk_lsh(1) - GRHydro_stencil
+
+           if(evolve_mhd.ne.0) then
+               if(track_divB.ne.0) then
+                 if(transport_constraints.ne.0) then
+                   ! edge based divergence (see WhiskyMHD & Bruno's thesis, Eq. 7.27)
+                   divB(i,j,k) = divB(i,j,k) + &
+                     0.25d0*(Bcons(i+1,j,k,1)-Bcons(i,j,k,1)+ &
+                             Bcons(i+1,j+1,k,1)-Bcons(i,j+1,k,1)+ &
+                             Bcons(i+1,j,k+1,1)-Bcons(i,j,k+1,1)+ &
+                             Bcons(i+1,j+1,k+1,1)-Bcons(i,j+1,k+1,1))*idx + &
+                     0.25d0*(Bcons(i,j+1,k,2)-Bcons(i,j,k,2)+ &
+                             Bcons(i+1,j+1,k,2)-Bcons(i+1,j,k,2)+ &
+                             Bcons(i,j+1,k+1,2)-Bcons(i,j,k+1,2)+ &
+                             Bcons(i+1,j+1,k+1,2)-Bcons(i+1,j,k+1,2))*idy + &
+                     0.25d0*(Bcons(i,j,k+1,3)-Bcons(i,j,k,3)+ &
+                             Bcons(i+1,j,k+1,3)-Bcons(i+1,j,k,3)+ &
+                             Bcons(i,j+1,k+1,3)-Bcons(i,j+1,k,3)+ &
+                             Bcons(i+1,j+1,k+1,3)-Bcons(i+1,j+1,k,3))*idz 
+                 else
+                   Bcons_l1 = 0.5d0 * (Bcons(i,j,k,1) + &
+                            Bcons(i-1,j,k,1)) 
+                   Bcons_l2 = 0.5d0 * (Bcons(i,j,k,2) + &
+                            Bcons(i,j-1,k,2)) 
+                   Bcons_l3 = 0.5d0 * (Bcons(i,j,k,3) + &
+                            Bcons(i,j,k-1,3))
+                   Bcons_r1 = 0.5d0 * (Bcons(i,j,k,1) + &
+                            Bcons(i+1,j,k,1))
+                   Bcons_r2 = 0.5d0 * (Bcons(i,j,k,2) + &
+                            Bcons(i,j+1,k,2))
+                   Bcons_r3 = 0.5d0 * (Bcons(i,j,k,3) + &
+                            Bcons(i,j,k+1,3))
+                   !write(*,*) "Bcons_r1 = ", Bcons_r1
+                   divB(i,j,k) = divB(i,j,k) + (Bcons_l1 - Bcons_r1) * idx + (Bcons_l2 - Bcons_r2) * idy + (Bcons_l3 - Bcons_r3) * idz  
+                   !divB(i,j,k) = 0.0d0 
+                 endif
+               endif
+            endif
+    
+          enddo
+        enddo
+      enddo
+      !$OMP END PARALLEL DO
+ 
+end subroutine GRHydro_CalcDivB