cached_session for graph tests #1172
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| @@ -29,7 +30,7 @@ private void _testWhileContextHelper(int maximum_iterations) | |||
| var b = new Func<Tensor, Tensor>(x => math_ops.add(x, 1, name: "c")); | |||
| //control_flow_ops.while_loop( | |||
| // c, b, i , maximum_iterations: tf.constant(maximum_iterations)); | |||
| foreach (Operation op in sess.graph.get_operations()) | |||
| foreach (Operation op in sess.Single().graph.get_operations()) | |||
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@Oceania2018 I'm not sure how exactly IEnumerable should work there since Python generator produces only one instance. Anyway this test wasn't working and it is still not implemented yet.
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The test didn't come through.
Test method TensorFlowNET.UnitTest.Gradient.GradientTest.testBoundaryContinue threw exception:
Tensorflow.ValueError: Cannot use the default session to evaluate tensor: the tensor's graph is different from the session's graph. Pass an explicit session to `eval(session=sess)`.There was a problem hiding this comment.
Sorry, it was flaky. Now it should work.
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@Oceania2018 I'm not sure how exactly IEnumerable should work there since Python generator produces only one instance. Anyway this test wasn't working and it is still not implemented yet.
Since the different behavior of yield in Python and C#, If cached_session only need to have one session, I think it is better not to use yield? And then you can use using to replace with in GradientTest.cs
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Could, please, explain me why yield used in Python in this case?
Anyway fixed.
| { | ||
| if (self._cached_session != null) | ||
| { | ||
| self._cached_session.Dispose(); |
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@Oceania2018 should we cleanup the graph and the config as well?
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| self.cached_session(); |
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@Oceania2018 I'm not sure how exactly "with" should be ported there, since "IEnumerable" isn't "IDisposable" and we don't need to call any "Dispose" for the enumerable itself. I guess session's "Dispose" should be called automatically.
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Implementation of cached_session for the possibility of further porting of tests.
cached_session is a singleton which is constructed on the first call and disposed on the tests cleanup.
There's also testBoundaryContinue() test implemented to prove that cache_session() works.