feat: add silu clamp limit to shared expert for DeepSeek-V4#1665
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Signed-off-by: AlpinDale <alpindale@gmail.com>
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This pull request introduces the SiluAndMulWithClamp activation function, which implements SwiGLU with input clamping, and integrates it into the DeepseekV4 model. The changes include new CUDA kernels for clamped activations and the addition of a DeepseekV4MLP class. Feedback was provided regarding an inefficient instantiation of the SiluAndMul class within a lambda in the CPU MoE implementation, which could also lead to initialization errors.
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