Overwrite an existing parfile unless

  - it is identical with the original parfile
  - this is a recovery run
This closes PR CactusBase/884.


git-svn-id: http://svn.cactuscode.org/arrangements/CactusBase/IOUtil/trunk@177 b32723a9-ab3a-4a60-88e2-2e5d99d7c17a

1 files changed, 5 insertions, 2 deletions

diff --git a/doc/documentation.tex b/doc/documentation.tex
index 93f7b30..39e3cb4 100644
--- a/doc/documentation.tex
+++ b/doc/documentation.tex
@@ -192,8 +192,11 @@ This is controlled by the {\tt IO::parfile\_write} parameter:
 \end{itemize}
 
 The name of the new parameter file defaults to the original filename, unless the
-parameter {\tt IO::parfile\_name} is set. Note that if a file already exists
-with the chosen name it will not be overwritten.
+parameter {\tt IO::parfile\_name} is set. Note that an already existing file
+with the chosen name will be overwritten unless it is identical with the
+original parameter file, or if Cactus was recovered from a checkpoint (in which
+case you don't want to overwrite an existing parameter file with your recovery
+parameter file).
 
 
 \section{I/O Modes}