merge

theano/sandbox/cuda/cuda_ndarray.cu

@@ -311,6 +311,7 @@ PyObject* CudaNdarray_Zeros(PyObject* dummy, PyObject* shape)
         }
 
         int shp_el = PyInt_AsLong(shp_el_obj);
+        Py_DECREF(shp_el_obj);
 
         if (shp_el <= 0)
         {
@@ -320,7 +321,6 @@ PyObject* CudaNdarray_Zeros(PyObject* dummy, PyObject* shape)
         }
 
         newdims[i] = shp_el;
-        
         total_elements *= newdims[i];
     }
 
@@ -1437,7 +1437,10 @@ CudaNdarray_setitem(PyObject *o, PyObject  *key, PyObject  *v)
     assert (CudaNdarray_EqualAndIgnore(viewCopyForComparison, rval, 1, 1));
     assert (rval->base == baseSavedForComparison);
     assert (rval->dev_structure_fresh);
+
+    // Clean up locally-created references
     Py_DECREF((PyObject*)viewCopyForComparison);
+    Py_DECREF(rval);
 
     return 0;
 }

theano/sandbox/rng_mrg.py

@@ -149,6 +149,10 @@ class mrg_uniform_base(Op):
         return Apply(self, 
                 [rstate, size], 
                 [rstate.type(), self.output_type()])
+
+    def grad(self,inputs,ograd):
+        return [None for i in inputs]
+
     def c_code_cache_version(self):
         return (1,)
 
@@ -717,5 +721,3 @@ def mrg_random_make_inplace(node):
         return new_op.make_node(*node.inputs).outputs
     return False
 optdb.register('random_make_inplace_mrg', opt.in2out(mrg_random_make_inplace, ignore_newtrees=True), 99, 'fast_run', 'inplace')
-
-