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Who can give an explanation of all_reduce_spec ? #381

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ghost opened this issue May 29, 2019 · 0 comments
Open

Who can give an explanation of all_reduce_spec ? #381

ghost opened this issue May 29, 2019 · 0 comments

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@ghost
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ghost commented May 29, 2019

What's the difference between parameter server and replicated mode ?
Does all_reduce_spec only works with replicated mode ?
all_reduce_spec has a choice of "pscpu or psgpu". What's the difference with parameter server mode + local_parameter_server='cpu or gpu'?
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