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为什么GPU和CPU如此相仿? #9
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我测试的也是差不多的结果,cpu和gpu速度上差异很小。另外想请教下,你测试的时候cpu和gpu的推理结果完全一致嘛?我这边在安卓手机上测试的结果,有些时候是一致的,有些时候推理结果不一样。 |
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感谢大佬在ncnn项目中的付出指点,我用此项目做android GPU测试,在Samsung Galaxy S8(CPU:骁龙835 GPU:Adreno (TM) 540)上用GPU CPU分别同样图像跑1000次,CPU耗时110ms GPU耗时约100ms,看起来没有实质差别,是因为大佬把CPU优化得实在太好了吗?核心测试代码如下
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