Updated the aerialvision log parser to detect for metric sample that contains no data. Instead of crashing, it prints out an warning and proceeds.

[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 16569]

2 files changed, 11 insertions, 0 deletions

diff --git a/CHANGES b/CHANGES
index 88657d1..70a263d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -46,6 +46,8 @@ Version 3.2.1+edits (development branch) versus 3.2.1
     - Fixed a dependency error in the src/cuda-sim Makefile.
     - Fixing a source of non-determinism in GPGPU-Sim (Bug 147).
     - Eliminated some memory leaks in the pure functional simulator
+    - Added check to AerialVision to detect and warn about performance metric
+      entries with no data.  
 
 Version 3.2.1 versus 3.2.0
 - Added kernel name and launch uids to performance statistics log.
diff --git a/aerialvision/lexyacc.py b/aerialvision/lexyacc.py
index de4e732..d657383 100644
--- a/aerialvision/lexyacc.py
+++ b/aerialvision/lexyacc.py
@@ -212,12 +212,21 @@ def parseMe(filename):
     
     inputData = 'NULL'
 
+    # a table containing all the metrics that has received the missing data warning 
+    stat_missing_warned = {}
         
     def p_sentence(p):
         '''sentence : WORD NUMBERSEQUENCE'''
         #print p[0], p[1],p[2]
         num = p[2].split(" ")  
         
+        # detect empty data entry for particular metric and print a warning 
+        if p[2] == '': 
+            if not p[1] in stat_missing_warned: 
+                print "WARNING: Sample entry for metric '%s' has no data. Skipping..." % p[1]
+                stat_missing_warned[p[1]] = True
+            return
+
         lookup_input = p[1].lower()
         if (lookup_input  in stat_lookuptable):
             if (lookup_input == "globalcyclecount") and (int(num[0]) % 10000 == 0):