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author | miguel <miguel@89daf98e-ef62-4674-b946-b8ff9de2216c> | 2000-10-16 17:53:12 +0000 |
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committer | miguel <miguel@89daf98e-ef62-4674-b946-b8ff9de2216c> | 2000-10-16 17:53:12 +0000 |
commit | 2b0348c6e74fe1897e79f688a1acd7d6bfc5367f (patch) | |
tree | 4b6abba190e8a4426119eba7e9b0e07c629136a5 /README | |
parent | df428299462e7cf664184401b9bc6ddc6bd4ba9a (diff) |
*** empty log message ***
git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinAnalysis/AHFinder/trunk@136 89daf98e-ef62-4674-b946-b8ff9de2216c
Diffstat (limited to 'README')
-rw-r--r-- | README | 13 |
1 files changed, 6 insertions, 7 deletions
@@ -24,19 +24,18 @@ BRIEF DESCRIPTION This thorn looks for apparent horizons (AH) in 3D using two different algorithms. In the default mode, it uses a minimization algorithm. It can also use a flow algorithm if one sets the -parameter "mahf_flow" equal to "yes": +parameter "ahf_flow" equal to "yes": -mahf_flow = "yes" +ahf_flow = "yes" The minimization algorithm is VERY slow if one has a lot of terms in the spherical harmonics expansion (see below), but it is quite fast for a small number of terms. -The thorn is activated by adding the following lines to the -parameter file: +The thorn is activated by adding the following line to the parameter +file: -ah_persists = "yes" -minimumAHF_active = "yes" +ahfinder::ahf_active = "yes" Also, one needs to tell the routine how often we want to look for AH by using the parameter `mahf_findevery' (its @@ -44,7 +43,7 @@ default value is 1). The routine defines the grid function `mahfgrid' as: -mahfgrid = r - f(theta,phi) +ahfgrid = r - f(theta,phi) So that the surface being considered corresponds to the zero level of `mahfgrid'. The function f(theta,phi) is expanded in spherical |