llama: dynamic head_dim and n_rot for SWA (#20301)

* llama: dynamic head_dim and n_rot for SWA

* also add gguf_writer wrappers

* fix build

* build_rope_shift arg reorder
This commit is contained in:
Xuan-Son Nguyen
2026-03-09 22:22:39 +01:00
committed by GitHub
parent 23fbfcb1ad
commit 59db9a357d
112 changed files with 419 additions and 346 deletions
+6 -3
View File
@@ -186,8 +186,10 @@ void llama_model_saver::add_kv_from_model() {
add_kv(LLM_KV_ATTENTION_HEAD_COUNT_KV, hparams.n_head_kv_arr, true);
add_kv(LLM_KV_ATTENTION_MAX_ALIBI_BIAS, hparams.f_max_alibi_bias);
add_kv(LLM_KV_ATTENTION_CLAMP_KQV, hparams.f_clamp_kqv);
add_kv(LLM_KV_ATTENTION_KEY_LENGTH, hparams.n_embd_head_k);
add_kv(LLM_KV_ATTENTION_VALUE_LENGTH, hparams.n_embd_head_v);
add_kv(LLM_KV_ATTENTION_KEY_LENGTH, hparams.n_embd_head_k_full);
add_kv(LLM_KV_ATTENTION_VALUE_LENGTH, hparams.n_embd_head_v_full);
add_kv(LLM_KV_ATTENTION_KEY_LENGTH_SWA, hparams.n_embd_head_k_swa);
add_kv(LLM_KV_ATTENTION_VALUE_LENGTH_SWA, hparams.n_embd_head_v_swa);
add_kv(LLM_KV_ATTENTION_LAYERNORM_EPS, hparams.f_norm_eps);
add_kv(LLM_KV_ATTENTION_LAYERNORM_RMS_EPS, hparams.f_norm_rms_eps);
add_kv(LLM_KV_ATTENTION_CAUSAL, hparams.causal_attn);
@@ -199,7 +201,8 @@ void llama_model_saver::add_kv_from_model() {
const float rope_scaling_factor = hparams.rope_freq_scale_train == 1.0f ? 0.0f : 1.0f/hparams.rope_freq_scale_train;
add_kv(LLM_KV_ROPE_DIMENSION_COUNT, hparams.n_rot);
add_kv(LLM_KV_ROPE_DIMENSION_COUNT, hparams.n_rot_full);
add_kv(LLM_KV_ROPE_DIMENSION_COUNT_SWA, hparams.n_rot_swa);
add_kv(LLM_KV_ROPE_FREQ_BASE, hparams.rope_freq_base_train);
// add_kv(LLM_KV_ROPE_SCALE_LINEAR, rope_scaling_factor); // old name
add_kv(LLM_KV_ROPE_SCALING_TYPE, llama_rope_scaling_type_name(hparams.rope_scaling_type_train));