diff options
Diffstat (limited to 'src/Bona_Masso_data.F77')
| -rw-r--r-- | src/Bona_Masso_data.F77 | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/src/Bona_Masso_data.F77 b/src/Bona_Masso_data.F77 index dfd62c1..02ea72e 100644 --- a/src/Bona_Masso_data.F77 +++ b/src/Bona_Masso_data.F77 @@ -23,7 +23,7 @@ c $Header$ implicit none CCTK_INT decoded_exact_model - CCTK_INT psi_on + logical psi_on CCTK_REAL x, y, z, t, $ gxx, gyy, gzz, gxy, gyz, gxz, $ hxx, hyy, hzz, hxy, hyz, hxz, @@ -74,11 +74,7 @@ C ax is dN / dx / N (sic!) C Save, if we have to provide the conformal factor - if (psi .gt. 0.0d0) then - psi_on=1 - else - psi_on=0 - end if + psi_on = psi .gt. 0.0d0 C Get the spacetime metric and its inverse at the base point. @@ -135,7 +131,10 @@ C Calculate x-derivatives. bxy = ((- guty_p / gutt_p) - (- guty_m / gutt_m)) / 4.d0 / eps bxz = ((- gutz_p / gutt_p) - (- gutz_m / gutt_m)) / 4.d0 / eps - psix = (psix_p - psix_m) / 2.0d0 / eps + if (psi_on) then + psix = (psix_p - psix_m) / 2.0d0 / eps + end if + C Calculate y-derivatives. call Exact__metric( @@ -168,7 +167,10 @@ C Calculate y-derivatives. byy = ((- guty_p / gutt_p) - (- guty_m / gutt_m)) / 4.d0 / eps byz = ((- gutz_p / gutt_p) - (- gutz_m / gutt_m)) / 4.d0 / eps - psiy = (psiy_p - psiy_m) / 2.0d0 / eps + if (psi_on) then + psiy = (psiy_p - psiy_m) / 2.0d0 / eps + end if + C Calculate z-derivatives. call Exact__metric( @@ -201,7 +203,10 @@ C Calculate z-derivatives. bzy = ((- guty_p / gutt_p) - (- guty_m / gutt_m)) / 4.d0 / eps bzz = ((- gutz_p / gutt_p) - (- gutz_m / gutt_m)) / 4.d0 / eps - psiz = (psiz_p - psiz_m) / 2.0d0 / eps + if (psi_on) then + psiz = (psiz_p - psiz_m) / 2.0d0 / eps + end if + C Calculate t-derivatives, and extrinsic curvature. call Exact__metric( @@ -248,8 +253,9 @@ C Calculate t-derivatives, and extrinsic curvature. $ + bxx * gxz + bxy * gyz + bxz * gzz $ + bzx * gxx + bzy * gxy + bzz * gxz) / alp -C Calculate second derivatives of the conformal factor - if (psi_on .eq. 1) then +C Calculate second derivatives of the conformal factor + + if (psi_on) then call Exact__metric( $ decoded_exact_model, $ x+eps+eps, y, z, t, |