Mark first batch of really slow tests.

theano/scan_module/tests/test_scan.py

@@ -8,6 +8,7 @@ import unittest
 import cPickle
 import numpy
 from nose.plugins.skip import SkipTest
+from nose.plugins.attrib import attr
 from numpy.testing import dec
 
 import theano
@@ -1525,6 +1526,7 @@ class T_Scan(unittest.TestCase):
                              analytic_grad[max_err_pos],
                              num_grad.gx[max_err_pos]))
 
+    @attr('slow')
     def test_grad_multiple_outs_taps(self):
         l = 5
         rng = numpy.random.RandomState(utt.fetch_seed())
@@ -3659,6 +3661,7 @@ class T_Scan(unittest.TestCase):
             inp = scan_node.op.outer_non_seqs(scan_node)
             assert len(inp) == 1
 
+    @attr('slow')
     def test_hessian_bug_grad_grad_two_scans(self):
         #Bug reported by Bitton Tenessi
 

theano/sparse/tests/test_basic.py

@@ -1266,6 +1266,7 @@ class UsmmTests(unittest.TestCase):
         self.z = numpy.asarray(self.rng.uniform(-1, 1, z_size),
                                dtype=theano.config.floatX)
 
+    # this is slow, but it's the only test for the op.
     def test(self):
         def mat(format, name, dtype):
             if format == 'dense':

theano/tensor/tests/test_basic.py

@@ -13,6 +13,7 @@ import __builtin__
 builtin_min = __builtin__.min
 
 from nose.plugins.skip import SkipTest
+from nose.plugins.attrib import attr
 import numpy
 from numpy.testing import dec, assert_array_equal, assert_allclose
 from numpy.testing.noseclasses import KnownFailureTest
@@ -4050,6 +4051,7 @@ class t_dot(unittest.TestCase):
         utt.verify_grad(dot, [rand(2, 3, 4), rand(4, 5)])
         utt.verify_grad(dot, [rand(2, 3, 4), rand(3, 4, 5)])
 
+    @attr('slow')
     def test_broadcastable_patterns(self):
 
         #

theano/tensor/tests/test_opt.py

@@ -10,6 +10,7 @@ import unittest
 
 import numpy
 from nose.plugins.skip import SkipTest
+from nose.plugins.attrib import attr
 from numpy.testing import dec
 from numpy.testing.noseclasses import KnownFailureTest
 
@@ -2142,6 +2143,7 @@ class test_local_subtensor_merge(unittest.TestCase):
             print 'shape: %s' % (x_s,)
             print '%% OK: %f' % (float(n_ok) * 100 / (n_ok + n_index_err))
 
+    @attr('slow')
     def test_none_slice(self):
         # Test case of two slices, var[b1:e1:s1][b2:e2:s2]
         # where any of the b, e, and s can be None