use keyword argument for readability.

theano/sandbox/cuda/blas.py

@@ -721,7 +721,12 @@ class GpuConv(GpuOp):
             cuda = theano.sandbox.cuda
             device_id = cuda.use.device_number
             if device_id is None:
-                cuda.use("gpu", False, False, False, False, True)
+                cuda.use("gpu",
+                         force=False,
+                         default_to_move_computation_to_gpu=False,
+                         move_shared_float32_to_gpu=False,
+                         enable_cuda=False,
+                         test_driver=True)
                 device_id = cuda.use.device_number
             cuda_ndarray = theano.sandbox.cuda.cuda_ndarray.cuda_ndarray
             prop = cuda_ndarray.device_properties(device_id)

theano/sandbox/cuda/tests/test_conv_cuda_ndarray.py

@@ -36,7 +36,12 @@ if device_id is None:
     cuda_ndarray.shared_constructor(numpy.zeros(2, dtype='float32'))
 device_id = theano.sandbox.cuda.use.device_number
 if device_id is None:
-    cuda.use("gpu", False, False, False, False, True)
+    cuda.use("gpu",
+             force=False,
+             default_to_move_computation_to_gpu=False,
+             move_shared_float32_to_gpu=False,
+             enable_cuda=False,
+             test_driver=True)
     device_id = theano.sandbox.cuda.use.device_number
 cuda_ndarray = theano.sandbox.cuda.cuda_ndarray.cuda_ndarray
 device_prop = cuda_ndarray.device_properties(device_id)