The condition for terminating the Cactus main evolution has changed

slightly, and will affect people using PUGH (or the default Cactus
evolution routine) *and* terminating by setting the parameters
cctk_initial_time and cctk_final_time

  There is now a keyword parameter,

  Cactus::terminate

which can be set either to:

iteration (the default): terminate when cctk_itlast is reached

time:
  if cctk_initial_time < cctk_final_time terminate when time >=
    cctk_final_time
  if cctk_initial_time > cctk_final_time terminate when time <=
    cctk_final_time

either: terminate when either of the above conditions are true

both: terminate when both of the above conditions are true

never: ignore iteration and time for termination

The reason for making this change is to support a negative timestep.


git-svn-id: http://svn.cactuscode.org/flesh/trunk@2273 17b73243-c579-4c4c-a9d2-2d5706c11dac

1 files changed, 9 insertions, 0 deletions

diff --git a/src/param.ccl b/src/param.ccl
index 610cbb21..a69099da 100644
--- a/src/param.ccl
+++ b/src/param.ccl
@@ -59,6 +59,15 @@ BOOLEAN terminate_next "Terminate on next iteration?" STEERABLE=ALWAYS
 {
 } "no"
 
+KEYWORD terminate "Condition on which to terminate evolution loop" STEERABLE=ALWAYS
+{
+  "never" :: "Never terminate"
+  "iteration" :: "Take termination condition from iteration number"
+  "time" :: "Take termination condition from coordinate time"
+  "either" :: "Take termination condition from either iteration number or coordinate time"
+  "both" :: "Take termination condition from both iteration number and coordinate time"
+} "iteration"
+
 REAL cctk_initial_time "Initial time for evolution"
 {
  : :: "Anything"