Repair the OpenCL init code

theano/sandbox/gpuarray/__init__.py

@@ -65,8 +65,9 @@ def init_dev(dev, name=None):
     reg_context(name, context)
     pygpu_activated = True
     if config.print_active_device:
-        cudnn_version = "not available"
         warn = None
+        cudnn_version = ""
+        if dev.startswith('cuda'):
             try:
                 cudnn_version = dnn.version()
                 # 4100 should not print warning with cudnn 4 final.
@@ -74,10 +75,10 @@ def init_dev(dev, name=None):
                     warn = ("Your CuDNN version is more recent then Theano."
                             " If you see problems, try updating Theano or"
                             " downgrading CuDNN to version 4.")
-
+                cudnn_version = " (CuDNN version %s)" % cudnn_version
             except Exception:
                 raise RuntimeError("CuDNN is mandatory with the GpuArray back-end.")
-        print("Mapped name %s to device %s: %s (CuDNN version %s)" % (
+        print("Mapped name %s to device %s: %s%s" % (
             name, dev, context.devname, cudnn_version),
               file=sys.stderr)
         if warn: