comaniac commented on a change in pull request #6842:
URL: https://github.com/apache/incubator-tvm/pull/6842#discussion_r519199787
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File path: python/tvm/auto_scheduler/compute_dag.py
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@@ -182,3 +187,11 @@ def hash_key(self):
str_key = str_key.encode(encoding="utf-8")
return hashlib.md5(str_key).hexdigest()
+
+ def __getstate__(self):
+ return {"compute": SaveJSON(self.compute), "sche": SaveJSON(self.sche)}
+
+ def __setstate__(self, state):
+ self.compute = LoadJSON(state["compute"]) # pylint:
disable=assignment-from-no-return
Review comment:
We don't call them in SearchTask because all its members have
__setstate__ and __getstate__ implemented correctly. This function provides the
correct implementation for ConouteDAG and it will be called When processing
ComputeDAG in SearchTask.
For Load/SaveJSON here, alternatively we can use pickle.loads/dumps and let
them call Load/SaveJSON via Objects. However, this will introduce the
dependency of pickle in this function, and will somehow trigger a bug in the
unit test. You can test it by replacing Load/SaveJSON with pickle calls. In the
unit test I add, you will find that after loading the DAG back, the placeholder
A appears twice.
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