1 files changed, 5 insertions, 0 deletions
diff --git a/param.ccl b/param.ccl
index 2b931e1..443efb9 100644
--- a/param.ccl
+++ b/param.ccl
@@ -142,6 +142,11 @@ INT checkpoint_every "How often to checkpoint" STEERABLE = ALWAYS
    1:* :: "Every so many iterations"
   -1:0 :: "Disable periodic checkpointing"
 } -1
+REAL checkpoint_every_walltime_hours "How often to checkpoint" STEERABLE = ALWAYS
+{
+  (0:* :: "After so much walltime has passed"
+  -1   :: "Disable periodic walltime checkpointing"
+} -1
 BOOLEAN checkpoint_on_terminate "Checkpoint after last iteration" STEERABLE = ALWAYS
 {
 } "no"