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ik_llama.cpp/ggml/src/ggml-cuda/sumrows.cuh
Kawrakow 28d3e63805 Various fused ops around expert selection (#840)
* Fuse sigmoid+add+grouped_topk+get_rows (CPU)

* Fix CPU + CUDA

but CUDA is somehow not 100% correct as I get a slightly different
PPL (lower!)

* Minor

* Fuse sigmoid+add+topk+get_rows (CUDA)

* Fuse sigmoid+add+topk+get_rows (CPU)

* Fuse topk+view+get_rows+reshape+softmax (CPU)

* Fuse topk+view+get_rows+reshape+softmax (CUDA)

* cpu: turn off the openai topk fusing for now

Something is not right and I don't see the bug.
On the CPU one doesn't gain much if anything, so not a big loss.

* Also fuse sum_rows and div

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Co-authored-by: Iwan Kawrakow <iwan.kawrakow@gmail.com>
2025-10-19 19:02:46 +03:00

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#include "common.cuh"
void ggml_cuda_op_sum_rows(ggml_backend_cuda_context & ctx, ggml_tensor * dst);
void sum_rows_f32_cuda(const float * x, float * dst, const int ncols, const int nrows, cudaStream_t stream);
void ggml_cuda_op_sum_rows_div(ggml_backend_cuda_context & ctx, ggml_tensor * dst);