Github user cloud-fan commented on the pull request:
https://github.com/apache/spark/pull/7373#issuecomment-121654210
@davies which "local" do you mean? If you mean `LocalBackend`(--master
"local[*]"), we will still serialize and deserialize task sets, if you mean
"running locally", currently we only allow one-partition job to [run
locally](https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala#L806).
cc @rxin, an unrelate question here, I saw we set up task context even for
[local
execution](https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala#L674-L682),
and set partition id to 0, is there really a case that we don't have task
context?
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