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llama : support running Mamba-Codestral-7B-v0.1

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This commit is contained in:
Francis Couture-Harpin 2024-08-18 22:43:39 -04:00
parent dceff23fae
commit 2bfe9de6d3
2 changed files with 5 additions and 1 deletions
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4
convert_hf_to_gguf.py
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@ -2843,6 +2843,10 @@ class Mamba2Model(Model):
def modify_tensors(self, data_torch: Tensor, name: str, bid: int | None) -> Iterable[tuple[str, Tensor]]:
del bid # unused
if name.startswith("model.backbone") or name.startswith("model.lm_head"):
# map Mamba-Codestral-7B-v0.1 tensor names to the names used by Mamba-2
name = name.removeprefix("model.")
if name.endswith(".dt_bias"):
name = name.rpartition(".dt_bias")[0] + ".dt_proj.bias"

2
src/llama.cpp
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@ -9383,7 +9383,7 @@ static struct ggml_tensor * llm_build_mamba2(
// grouped RMS norm
y = ggml_reshape_4d(ctx, y, d_inner / n_group, n_group, n_seq_tokens, n_seqs);
y = llm_build_norm(ctx, y, hparams,
model.layers[il].ssm_norm, NULL,
ggml_reshape_2d(ctx, model.layers[il].ssm_norm, d_inner / n_group, n_group), NULL,
LLM_NORM_RMS, cb, il);
y = ggml_reshape_3d(ctx, y, d_inner, n_seq_tokens, n_seqs);