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llama : skip loading unused tensors #12004

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Merged
merged 2 commits into from
Feb 21, 2025
Merged

llama : skip loading unused tensors #12004

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5014f38
llama : assign unknown/unused tensors to host buffer type
ggerganov Feb 21, 2025
ed2571e
llama : skip unused tensors
ggerganov Feb 21, 2025
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8 changes: 8 additions & 0 deletions src/llama-model.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1424,6 +1424,14 @@ bool llama_model::load_tensors(llama_model_loader & ml) {
throw std::runtime_error(format("missing tensor info mapping for %s", tn.str().c_str()));
}

// skip unused tensors
if (info.op == GGML_OP_NONE) {
LLAMA_LOG_WARN("model has unused tensor %s -- ignoring\n", tn.str().c_str());
ml.n_created++;

return nullptr;
}

// tensors with "bias" suffix are always used with GGML_OP_ADD
ggml_op op;
bool bias = tn.suffix != nullptr && strcmp(tn.suffix, "bias") == 0;
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