root/llama.cpp
1
0
Fork 0
mirror of https://github.com/ggerganov/llama.cpp.git synced 2025-01-12 19:50:17 +00:00
Code Issues Actions 5 Packages Projects Releases Wiki Activity

llama : handle n_head == 0

Browse Source
This commit is contained in:
Georgi Gerganov 2024-07-04 18:23:17 +03:00
parent 22a648f8cc
commit 3fe395d220
No known key found for this signature in database
GPG Key ID: 449E073F9DC10735
1 changed files with 13 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/llama.cpp
View File

@ -4532,8 +4532,6 @@ static void llm_load_hparams(
ml.get_key_or_arr(LLM_KV_FEED_FORWARD_LENGTH, hparams.n_ff_arr, hparams.n_layer);
ml.get_key_or_arr(LLM_KV_ATTENTION_HEAD_COUNT, hparams.n_head_arr, hparams.n_layer);
GGML_ASSERT(hparams.n_head() > 0);
// n_head_kv is optional, default to n_head
hparams.n_head_kv_arr = hparams.n_head_arr;
@ -4565,8 +4563,9 @@ static void llm_load_hparams(
ml.get_key(LLM_KV_ROPE_SCALING_ATTN_FACTOR, hparams.rope_attn_factor, false);
// non-transformer models do not have attention heads
if (hparams.n_head() > 0) {
// sanity check for n_rot (optional)
{
hparams.n_rot = hparams.n_embd / hparams.n_head();
ml.get_key(LLM_KV_ROPE_DIMENSION_COUNT, hparams.n_rot, false);
@ -4578,13 +4577,17 @@ static void llm_load_hparams(
}
// gpt-neox n_rot = rotary_pct * (n_embd / n_head)
// gpt-j n_rot = rotary_dim
}
hparams.n_embd_head_k = hparams.n_embd / hparams.n_head();
ml.get_key(LLM_KV_ATTENTION_KEY_LENGTH, hparams.n_embd_head_k, false);
hparams.n_embd_head_v = hparams.n_embd / hparams.n_head();
ml.get_key(LLM_KV_ATTENTION_VALUE_LENGTH, hparams.n_embd_head_v, false);
} else {
hparams.n_rot = 0;
hparams.n_embd_head_k = 0;
hparams.n_embd_head_v = 0;
}
// arch-specific KVs
switch (model.arch) {