made the failure_callback for the optdb display errors

theano/gof/__init__.py

@@ -23,7 +23,7 @@ from opt import \
     LocalOptimizer, local_optimizer, LocalOptGroup, LocalOpKeyOptGroup, \
     OpSub, OpRemove, PatternSub, \
     NavigatorOptimizer, TopoOptimizer, OpKeyOptimizer, EquilibriumOptimizer, \
-    keep_going, \
+    keep_going, warn, \
     InplaceOptimizer, PureThenInplaceOptimizer
 
 from optdb import \

theano/gof/opt.py

@@ -820,10 +820,15 @@ class EquilibriumOptimizer(NavigatorOptimizer):
 
 def keep_going(exc, nav, repl_pairs):
     """WRITEME"""
-    print exc, nav, repl_pairs
     pass
 
 
+import traceback
+def warn(exc, nav, repl_pairs):
+    """WRITEME"""
+    traceback.print_exc()
+
+
 #################
 ### Utilities ###
 #################

theano/gof/optdb.py

@@ -98,7 +98,7 @@ class EquilibriumDB(DB):
 
     def query(self, *tags, **kwtags):
         opts = super(EquilibriumDB, self).query(*tags, **kwtags)
-        return opt.EquilibriumOptimizer(opts, max_depth = 5, max_use_ratio = 10, failure_callback = opt.keep_going)
+        return opt.EquilibriumOptimizer(opts, max_depth = 5, max_use_ratio = 10, failure_callback = opt.warn)
 
 
 class SequenceDB(DB):
@@ -115,6 +115,6 @@ class SequenceDB(DB):
         opts = super(SequenceDB, self).query(*tags, **kwtags)
         opts = list(opts)
         opts.sort(key = lambda obj: self.__priority__[obj.name])
-        return opt.SeqOptimizer(opts, failure_callback = opt.keep_going)
+        return opt.SeqOptimizer(opts, failure_callback = opt.warn)
 
 

theano/tensor/opt.py

@@ -93,7 +93,7 @@ insert_inplace_optimizer = gof.optimizer(_insert_inplace_optimizer)
 inplace_optimizer = gof.InplaceOptimizer(
     gof.SeqOptimizer(out2in(gemm_pattern_1),
                      insert_inplace_optimizer,
-                     failure_callback = gof.keep_going))
+                     failure_callback = gof.warn))
 compile.optdb.register('inplace', inplace_optimizer, 99, 'fast_run')