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    Fix sparse training for trainer_count=1 (#204) · 28bc05b1
    emailweixu 提交于
    * Fix sparse training for trainer_count=1
    
    For trainer_count=1, the gradient machine is NeuralNetwork, which does not create parameter buf for PARAMETER_GRADIENT for sparse update in Parameter::enableType. But gradient parameter buf is still used in SgdThreadUpdater.
    
    * Minor update to comment
    28bc05b1
Logging.h 6.4 KB