fix test crash as we lowered the default threashold.

We raise it a little for this test, but it is still lower then what it was before.

fix test crash as we lowered the default threashold.
e56c9b0a · Frederic Bastien · 7ddbdd1e · e56c9b0a
--- a/theano/sandbox/cuda/tests/test_basic_ops.py
+++ b/theano/sandbox/cuda/tests/test_basic_ops.py
@@ -97,7 +97,15 @@ def test_sum():
        if val.size==0:
            assert f2(val)==f(val), ('shape', shape, 'pattern', pattern)
        else:
+            try:
+                #We raise the error threashold as we sum big matrix
+                #and this cause small rounding difference with some seed
+                #example in debug mode with unittests.rseed=9275
+                orig_rtol = theano.tensor.basic.float32_rtol
+                theano.tensor.basic.float32_rtol = 2e-5
                assert _allclose(f2(val),f(val)), ('shape', shape, 'pattern', pattern, sum([shape[i] for i in pattern]))
+            finally:
+                theano.tensor.basic.float32_rtol = orig_rtol
        #test with dimshuffle