Revert "force-disable of GPU initialization with pycuda"

theano/sandbox/cuda/__init__.py

@@ -399,9 +399,9 @@ def use(device,
 
         # Has PyCUDA already initialized the GPU context
         pycuda_init_dev = False
-#        if config.pycuda.init:
-#            import theano.misc.pycuda_init
-#            pycuda_init_dev = theano.misc.pycuda_init.pycuda_available
+        if config.pycuda.init:
+            import theano.misc.pycuda_init
+            pycuda_init_dev = theano.misc.pycuda_init.pycuda_available
 
         try:
             if (device != 'gpu') and not pycuda_init_dev: