PaddlePaddle / PaddlePaddle/Paddle

【CustomDevice】CustomDevice在调用flatten_dense_tensors报错

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@changeyoung98 is already working on this.

Since Nov 10, 2023.

status/developing type/bug-report
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Description

bug描述 Describe the Bug

目前FusedCommBuffer功能会创建ParamStorage以及GradStorage,但是目前flatten_dense_tensors函数只支持了GPU没有支持CustomDevice,固定写了device为‘GPU’,预期希望flatten_dense_tensors支持该功能。
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