1 files changed, 4 insertions, 0 deletions
diff --git a/gpu.py b/gpu.py
index c9e6269..5ad195d 100644
--- a/gpu.py
+++ b/gpu.py
@@ -12,6 +12,7 @@ from tools import timeit
 import src
 from geometry import standard_wavelengths
 from color import map_to_color
+import sys
 
 cuda.init()
 
@@ -308,6 +309,9 @@ class GPU(object):
                 output_queue_gpu = temp
                 output_queue_gpu[:1].set(np.uint32(1))
                 nphotons = input_queue_gpu[:1].get()[0]
+        
+        if gpuarray.max(self.histories_gpu).get() & (1 << 31):
+            print >>sys.stderr, "WARNING: ABORTED PHOTONS IN THIS EVENT"
 
         if 'profile' in __builtins__:
             self.context.synchronize()