vbatts/llama.cpp
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llama : pad KV cache size (#4280)

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* llama : pad KV cache size to 32

* metal : try to improve batched decoding
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Georgi Gerganov 2023-12-03 10:58:16 +02:00 • committed by GitHub
parent 5a7d3125e7
commit d7b800b8bc
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2 changed files with 2 additions and 3 deletions
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llama.cpp
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@ -5744,8 +5744,7 @@ static int llama_decode_internal(
// a heuristic, to avoid attending the full cache if it is not yet utilized
// after enough generations, the benefit from this heuristic disappears
// if we start defragmenting the cache, the benefit from this will be more important
//kv_self.n = std::max(32, GGML_PAD(llama_kv_cache_cell_max(kv_self), 32)); // TODO: this might be better for CUDA?
kv_self.n = std::min((int32_t) cparams.n_ctx, std::max(32, llama_kv_cache_cell_max(kv_self)));
kv_self.n = std::min((int32_t) cparams.n_ctx, std::max(32, GGML_PAD(llama_kv_cache_cell_max(kv_self), 32)));
//printf("kv_self.n = %5d, kv_self.used = %5d, kv_self.head = %5d\n", kv_self.n, kv_self.used, kv_self.head);