[Unstructured_prune] add local_sparsity #916
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wanghaoshuang
approved these changes
Nov 11, 2021
| @@ -240,6 +254,7 @@ def _get_skip_params(self, program): | |||
| if 'norm' in op.type() and 'grad' not in op.type(): | |||
| for input in op.all_inputs(): | |||
| skip_params.add(input.name()) | |||
| print(skip_params) | |||
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这一句如果要保留的话，需要说明下print的是什么信息。
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这是我debug时的一个冗余输出，后续PR会删除。
minghaoBD
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Dec 20, 2021
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为非结构化稀疏增加 local_sparsity功能，可以在构建UnstructuredPruner对象时，传入这个开关。当传入 ratio=0.5时，local_sparsity效果如下：
local_sparsity==True: 在确保模型整体稀疏度为50%时，每个参与稀疏的特征矩阵稀疏度均为50%，这样可以提升推理性能。
local_sparsity==False: 只确保了模型整体稀疏度为50%，每个参与稀疏的特征矩阵稀疏度可能不同，尤其是如果存在较低稀疏度的矩阵（10%，20%， 30%等），甚至会损伤推理性能。
注意，local_sparsity==True只能在 mode=='ratio'时使用，该限制已经在代码中通过assert约束。