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[Bugfix] Fix numel() downcast in fused_layernorm_dynamic_per_token_quant.cu #17316

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Merged
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Apr 29, 2025
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[Bugfix] Fix numel() downcast in fused_layernorm_dynamic_per_token_quant.cu #17316

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2 changes: 1 addition & 1 deletion csrc/quantization/fused_kernels/fused_layernorm_dynamic_per_token_quant.cu
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Original file line number Diff line number Diff line change
Expand Up @@ -96,7 +96,7 @@ void rms_norm_dynamic_per_token_quant_dispatch(
std::optional<at::Tensor> const& scale_ub,
std::optional<at::Tensor>& residual) {
int32_t hidden_size = input.size(-1);
int32_t num_tokens = input.numel() / hidden_size;
auto num_tokens = input.numel() / hidden_size;

dim3 grid(num_tokens);
dim3 block(std::min(hidden_size, 1024));
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