Add sequence parallel strategy support. #734
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1. Add sequence parallel strategy for GPTModelHybrid 2. Output has been checked layer by layer both in forward and backward progress, and its loss curve of the beginning 5000 steps fits the peer 3. Performance is improved for about 10% with sequence_parallel strategy compared with pretrain_gpt_1.3B_mp8
sneaxiy
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Sep 16, 2022
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and backward progress, and its loss curve of the beginning
5000 steps fits the peer
strategy compared with pretrain_gpt_1.3B_mp8