From 9d361701f41d0f6b0056de48aabfb9f7f3aa7823 Mon Sep 17 00:00:00 2001
From: Erik Schnetter <schnetter@aei.mpg.de>
Date: Sun, 5 Jun 2005 22:14:00 +0000
Subject: CarpetIOF5: Put a unique simulation ID into each timestep

darcs-hash:20050605221456-891bb-12a12814b06258c94078cdc33d122e82850ed316.gz
---
 CarpetDev/CarpetIOF5/interface.ccl   | 8 ++++++++
 CarpetDev/CarpetIOF5/src/timestep.cc | 8 ++++++++
 2 files changed, 16 insertions(+)

(limited to 'CarpetDev/CarpetIOF5')

diff --git a/CarpetDev/CarpetIOF5/interface.ccl b/CarpetDev/CarpetIOF5/interface.ccl
index 2d8dd3139..db9d9c014 100644
--- a/CarpetDev/CarpetIOF5/interface.ccl
+++ b/CarpetDev/CarpetIOF5/interface.ccl
@@ -22,3 +22,11 @@ REQUIRES FUNCTION Coord_GroupSystem
 CCTK_INT FUNCTION IO_TruncateOutputFiles \
   (CCTK_POINTER_TO_CONST IN cctkGH)
 REQUIRES FUNCTION IO_TruncateOutputFiles
+
+
+
+# Return a pointer to an unmodifiable C string
+# which contains a unique ID for this simulation
+CCTK_POINTER_TO_CONST \
+FUNCTION UniqueSimulationID (CCTK_POINTER_TO_CONST IN  cctkGH)
+USES FUNCTION UniqueSimulationID
diff --git a/CarpetDev/CarpetIOF5/src/timestep.cc b/CarpetDev/CarpetIOF5/src/timestep.cc
index a5ad7b0f9..37d37cd20 100644
--- a/CarpetDev/CarpetIOF5/src/timestep.cc
+++ b/CarpetDev/CarpetIOF5/src/timestep.cc
@@ -7,6 +7,7 @@
 #include <hdf5.h>
 
 #include "cctk.h"
+#include "cctk_Functions.h"
 
 #include "timestep.hh"
 #include "utils.hh"
@@ -50,6 +51,13 @@ namespace CarpetIOF5 {
       assert (m_hdf5_timestep >= 0);
       write_or_check_attribute (m_hdf5_timestep, "time", time);
       
+      if (CCTK_IsFunctionAliased ("UniqueSimulationID")) {
+        cGH const * const cctkGH = get_file().get_cctkGH();
+        char const * const job_id
+          = static_cast<char const *> (UniqueSimulationID (cctkGH));
+        write_or_check_attribute (m_hdf5_timestep, "simulation id", job_id);
+      }
+      
       assert (invariant());
     }
     
-- 
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