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llama.cpp/ggml/src/ggml-cuda/argsort.cuh
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074944998d ggml : process data in smaller chunks in CUDA ggml_top_k() and ggml_argsort() to reduce temporary buffers memory usage (#24776)
* ggml : process data in smaller chunks in CUDA ggml_top_k() implementation to reduce temporary buffers memory usage

* ggml : allocate tmp_dst only only once before the loop

* chore : whitespaces

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

* ggml : use chunked processing in both CUDA CUB top-k and argsort implementations

* chore : separate argsort_f32_i32_cuda_bitonic() call from return statement

Co-authored-by: Johannes Gäßler <johannesg@5d6.de>

* chore : replace ternary operators with min/max

---------

Co-authored-by: Stanisław Szymczyk <sszymczy@gmail.com>
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
Co-authored-by: Johannes Gäßler <johannesg@5d6.de>
2026-07-09 20:07:12 +02:00

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#include "common.cuh"
void ggml_cuda_op_argsort(ggml_backend_cuda_context & ctx, ggml_tensor * dst);
#ifdef GGML_CUDA_USE_CUB
int argsort_f32_i32_cuda_cub_chunk_nrows(const size_t nb01, const int64_t nrows);
void argsort_f32_i32_cuda_cub(ggml_cuda_pool & pool,
const float * x,
int * dst,
const int ncols,
const int nrows,
ggml_sort_order order,
cudaStream_t stream);
#endif // GGML_CUDA_USE_CUB
void argsort_f32_i32_cuda_bitonic(const float * x,
int * dst,
const int ncols,
const int nrows,
ggml_sort_order order,
cudaStream_t stream);