Give more name to SeqOptimizer for better profiling.

theano/compile/mode.py

@@ -88,6 +88,10 @@ OPT_FAST_RUN_STABLE = OPT_FAST_RUN.requiring('stable')
 OPT_FAST_COMPILE = gof.Query(include=['fast_compile'])
 OPT_STABILIZE = gof.Query(include=['fast_run'])
 OPT_STABILIZE.position_cutoff = 1.5000001
+OPT_FAST_RUN.name = 'OPT_FAST_RUN'
+OPT_FAST_RUN_STABLE.name = 'OPT_FAST_RUN_STABLE'
+OPT_FAST_COMPILE.name = 'OPT_FAST_COMPILE'
+OPT_STABILIZE.name = 'OPT_STABILIZE'
 
 predefined_optimizers = {
     None: (lambda env: None),

theano/gof/opt.py

@@ -500,7 +500,9 @@ def MergeOptMerge(opt):
     opt introduced additional similarities.
     """
     merger = merge_optimizer
-    return SeqOptimizer([merger, opt, merger])
+    opt = SeqOptimizer([merger, opt, merger])
+    opt.name = "MergeOptMerge"
+    return opt
 
 
 def pre_constant_merge(vars):

theano/gof/optdb.py

@@ -229,7 +229,10 @@ class SequenceDB(DB):
 
         opts = [o for o in opts if self.__position__[o.name] < position_cutoff]
         opts.sort(key=lambda obj: self.__position__[obj.name])
-        return opt.SeqOptimizer(opts, failure_callback=self.failure_callback)
+        ret = opt.SeqOptimizer(opts, failure_callback=self.failure_callback)
+        if hasattr(tags[0], 'name'):
+            ret.name = tags[0].name
+        return ret
 
     def print_summary(self, stream=sys.stdout):
         print >> stream, "SequenceDB (id %i)" % id(self)