+= some bugs noted by Erik in an old E-mail

git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/Exact/trunk@244 e296648e-0e4f-0410-bd07-d597d9acff87

1 files changed, 38 insertions, 0 deletions

diff --git a/doc/TODO b/doc/TODO
index f32fbdc..d5a992c 100644
--- a/doc/TODO
+++ b/doc/TODO
@@ -61,3 +61,41 @@ It would be nice if Exact supported fisheye.
 Failing that, it could at least check if FishEye is active
   and cleanly report an error.
 ----------------------------------------
+From schnetter@aei.mpg.de Tue Jan 18 19:24:05 2005
+Date: Tue, 18 Jan 2005 19:23:06 +0100
+From: Erik Schnetter <schnetter@aei.mpg.de>
+To: numrel@aei.mpg.de
+Subject: [Numrel] Uninitialised variables AEIThorns/Exact
+
+I noticed that not all metric routines set the variable "psi", which is 
+probably some kind of conformal factors.  However, some do, and I 
+cannot see a rule for when this is the case.
+
+In Bona_Masso_data.F77, there are later some unconditional calculations 
+on this value of psi.
+
+How is this variable psi supposed to be handled?  Should it be 
+initialised to some default?  Is there some kind of per-metric flag 
+that determines whether it should be set?
+
+There is also a strange statement
+
+      if (psi .gt. 0.0d0) then
+        psi_on=1
+      else
+        psi_on=0
+      end if
+
+near the beginning of Bona_Masso_data.F77 which I do not understand.
+
+-erik
+
+-- 
+Erik Schnetter <schnetter@aei.mpg.de>   http://www.aei.mpg.de/~eschnett/
+
+My email is as private as my paper mail.  I therefore support encrypting
+and signing email messages.  Get my PGP key from www.keyserver.net.
+
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+----------------------------------------