comaniac commented on issue #4995: [AutoTVM] Avoid using RPC for LocalRunner URL: https://github.com/apache/incubator-tvm/pull/4995#issuecomment-596014950 > One thing I noticed about the old LocalRunner is that a new RPC server and tracker seems is created each time `set_task` is called https://github.com/apache/incubator-tvm/blob/master/python/tvm/autotvm/measure/measure_methods.py#L333 > > Depending on how frequent that is called, perhaps we should change the server and tracker creation to only once at the Local runner starting time, which should reduce the overhead. > > @comaniac @merrymercy `set_task` is called only once per task so the overhead should not be a problem, especially I usually only test one task. Instead, I worry the stability of launching RPC server/tracker from master process. @merrymercy previously also found that this may cause the hanging problem. Maybe @merrymercy could comment more details.
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