patch gemma support

This commit is contained in:
jmorganca 2024-07-30 18:06:26 -07:00
parent 1b44d873e7
commit afa8d6e9d5

View file

@ -0,0 +1,20 @@
diff --git a/src/llama.cpp b/src/llama.cpp
index a207451f..fba6b175 100644
--- a/src/llama.cpp
+++ b/src/llama.cpp
@@ -4969,6 +4969,7 @@ static void llm_load_hparams(
hparams.attn_soft_cap = true;
switch (hparams.n_layer) {
+ case 26: model.type = e_model::MODEL_2B; break;
case 42: model.type = e_model::MODEL_9B; break;
case 46: model.type = e_model::MODEL_27B; break;
default: model.type = e_model::MODEL_UNKNOWN;
@@ -11736,6 +11737,7 @@ struct llm_build_context {
// ref: https://github.com/google/gemma_pytorch/commit/03e657582d17cb5a8617ebf333c1c16f3694670e
switch (model.type) {
+ case e_model::MODEL_2B: Qcur = ggml_scale(ctx0, Qcur, 1.0f / sqrtf(float(n_embd_head_k))); break;
case e_model::MODEL_9B: Qcur = ggml_scale(ctx0, Qcur, 1.0f / sqrtf(float(n_embd_head_k))); break;
case e_model::MODEL_27B: Qcur = ggml_scale(ctx0, Qcur, 1.0f / sqrtf(float(n_embd / n_head))); break;
default: GGML_ABORT("fatal error");