message: Reduce the number of concats to avoid test timeout.
diff: @@ -495,9 +495,9 @@ class ConcatOpTest(test.TestCase):
  p = []
  shape = np.array([7, 13])
  if test.is_gpu_available():
  - num_tensors = 10000
  + num_tensors = 5000
  else:
  - num_tensors = 1000
  + num_tensors = 500
  for i in np.arange(num_tensors):
  input_shape = shape
  placeholder = array_ops.placeholder(dtypes.float32, shape=input_shape)
  