[Fix] Fix gpu occupying when running with cpu #795
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[pull] develop from PaddlePaddle:develop
[pull] develop from PaddlePaddle:develop
… when start program in non-gpu mode(such as cpu)
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huohuohuohuohuo123
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Aug 12, 2024
… when start program in non-gpu mode(such as cpu) (PaddlePaddle#795)
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PR types
Bug fixes
PR changes
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Describe
ppsci/arch/activation.py内全局变量act_func_dict初始化时，包含了含参激活层Swish，这会触发paddle内部的初始化，导致显存占用。将Swish改为lazy初始化后解决。ppsci/utils/symbolic.py中的全局变量SYMPY_TO_PADDLE初始化时将paddle.zeros([])作为partial参数对paddle.heaviside进行了装饰，因此也会触发paddle内部的初始化，导致显存占用。将这一包装行为放至OperatorNode.__init__，让其变成lazy初始化后解决。修改前（出现红框中的内容表示触发了paddle内部的初始化，显存被占用）：
修改后：
