THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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In general a ML algorithm would update the model according to the data in iteration until the model is converged. The target algorithms could be classified w.r.t. three properties: boundedness of input datasets, amount of data relied required for each variable update and the synchronization policy.
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- In the sync mode, parallel subtasks, which execute the iteration body, update the model variables in a coordinated manner. There exists global epoch epochs, such that all subtasks fetch the shared model variable values at the beginning of an epoch, calculate model variable updates based on the fetched variable values, and updates the model variable values at the end of this epoch. In other words, al all subtasks read and update model variables in global lock steps.
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