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Sync workers with global lock#361

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kevinzou1982 wants to merge 2 commits intoIntelLabs:masterfrom kevinzou1982:sync_worker_with_global_lock

+153-35

Commits on Jun 20, 2019

Merge pull request #1 from NervanaSystems/master
kevinzou1982
authored

Commits on Jun 23, 2019

1, use global sync lock instand of lock_counter and release_counter in tensorflow. speed up counter access and prevent not zero problem.
kevin
committed