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Describe
Yaml配置中增加对cudnn kernel选择的支持,配置示例如下:
use_cudnn的配置为一个字符串形式的条件表达式,也可直接使用true或false,未配置时默认为false。
上述示例中表示在
FLAGS_conv2d_disable_cudnn == false
这个条件满足时会在计算中优先选择cudnn的kernel。