1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/*@@
@file brilldata.F
@date
@author Carsten Gundlach (Cactus 4, Miguel Alcubierre)
@desc
Construct Brill wave initial data.
@enddesc
@version $Header$
@@*/
#include "cctk.h"
#include "cctk_Parameters.h"
#include "cctk_Arguments.h"
#include "CactusEinstein/Einstein/src/Einstein.h"
#include "CactusElliptic/EllBase/src/EllBase.h"
subroutine brilldata(CCTK_ARGUMENTS)
implicit none
DECLARE_CCTK_ARGUMENTS
DECLARE_CCTK_PARAMETERS
DECLARE_CCTK_FUNCTIONS
integer ipsi,iMcoeff,iNcoeff
integer metpsi_index(7)
integer ierr
CCTK_REAL AbsTol(3),RelTol(3)
c Get indices for metric.
call CCTK_VarIndex(metpsi_index(1), "einstein::gxx")
call CCTK_VarIndex(metpsi_index(2), "einstein::gxy")
call CCTK_VarIndex(metpsi_index(3), "einstein::gxz")
call CCTK_VarIndex(metpsi_index(4), "einstein::gyy")
call CCTK_VarIndex(metpsi_index(5), "einstein::gyz")
call CCTK_VarIndex(metpsi_index(6), "einstein::gzz")
call CCTK_VarIndex(metpsi_index(7), "einstein::psi")
c Get indices for grid functions.
call CCTK_VarIndex(ipsi,"idbrilldata::brillpsi")
if (ipsi.lt.0) then
call CCTK_WARN(0,"Grid variable index for iphi not found")
end if
call CCTK_VarIndex(iMcoeff,"idbrilldata::brillMlinear")
if (iMcoeff.lt.0) then
call CCTK_WARN(0,"Grid variable index for Mcoeff not found")
end if
call CCTK_VarIndex(iNcoeff,"idbrilldata::brillNsource")
if (iNcoeff.lt.0) then
call CCTK_WARN(0,"Grid variable index for Ncoeff not found")
end if
c Set up background metric and coefficients for linear solve.
if (axisym.eq.1) then
call setupbrilldata2D(CCTK_ARGUMENTS)
else
call setupbrilldata3D(CCTK_ARGUMENTS)
end if
c Tolerances for elliptic solve.
AbsTol(1)= brill_thresh
AbsTol(2)= -1.0D0
AbsTol(3)= -1.0D0
RelTol(1)= -1.0D0
RelTol(2)= -1.0D0
RelTol(3)= -1.0D0
c Boundaries.
call Ell_SetStrKey(ierr,"yes","EllLinConfMetric::Bnd::Robin")
call Ell_SetRealKey(ierr,1.0D0,"EllLinConfMetric::Bnd::Robin::inf")
call Ell_SetIntKey(ierr,1,"EllLinConfMetric::Bnd::Robin::falloff")
c Elliptic solver.
if (CCTK_EQUALS(brill_solver,"sor")) then
call Ell_SetIntKey(ierr,sor_maxit,"Ell::SORmaxit");
call Ell_LinConfMetricSolver(ierr,cctkGH,
. metpsi_index,ipsi,iMcoeff,iNcoeff,AbsTol,RelTol,"sor")
else if (CCTK_EQUALS(brill_solver,"petsc")) then
call Ell_LinConfMetricSolver(ierr,cctkGH,
. metpsi_index,ipsi,iMcoeff,iNcoeff,AbsTol,RelTol,"petsc")
else if (CCTK_EQUALS(brill_solver,"bam")) then
call Ell_LinConfMetricSolver(ierr,cctkGH,
. metpsi_index,ipsi,iMcoeff,iNcoeff,AbsTol,RelTol,"bam")
end if
c Check for errors.
if (ierr.eq.ELL_SUCCESS) then
call CCTK_INFO("Leaving elliptic solver: solve successful")
else if (ierr.eq.ELL_NOCONVERGENCE) then
call CCTK_INFO("Leaving elliptic solver: solver failed to converge")
else if (ierr.eq.ELL_NOSOLVER) then
call CCTK_INFO("Elliptic solver not found")
else
call CCTK_INFO("Leaving elliptic solver: solve failed")
end if
c Synchronization and symmetry boundaries.
call CCTK_SyncGroup(ierr,cctkGH,"idbrilldata::brillconf")
call CartSymGN(ierr,cctkGH,"idbrilldata::brillconf")
c Reconstruct physical metric.
call finishbrilldata(CCTK_ARGUMENTS)
return
end
|
