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llama : Support llama 4 text-only (#12791)

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* llama4 conversion

* initial support, no chat template

* clean up a bit

* fix tokenizer conversion

* correct hparams

* try this

* fix shexp

* ffn_inp_normed

* chat template

* clean up model conversion

* add_bos

* add scale_before_ffn

* fix order

* weight_before_ffn

* llm_graph_input_attn_temp

* add chunk attn mask

* build_inp_attn_scale()

* add comment about ggml_repeat

* clarify comments

* fix build
This commit is contained in:
Xuan-Son Nguyen
2025-04-07 23:06:44 +02:00
committed by GitHub
parent 82974011f3
commit 1466621e73
17 changed files with 532 additions and 22 deletions
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8
src/llama-hparams.h
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@@ -112,6 +112,14 @@ struct llama_hparams {
bool use_alibi = false;
bool attn_soft_cap = false;
uint32_t n_moe_layer_step = 0;
bool use_kq_norm = true;
uint32_t n_attn_chunk = 0;
// values below seems to be fixed on llama4
uint32_t n_no_rope_layer_step = 4;
uint32_t n_attn_temp_floor_scale = 8192;
float f_attn_temp_scale = 0.1;
// needed by encoder-decoder models (e.g. T5, FLAN-T5)
// ref: https://github.com/ggerganov/llama.cpp/pull/8141
llama_token dec_start_token_id = LLAMA_TOKEN_NULL;