Method get_mapping_range

smallthinker/src/llama-model-loader.cpp:858–873

}

void llama_model_loader::get_mapping_range(size_t * first, size_t * last, void ** addr, int idx, ggml_context * ctx) const {
    GGML_ASSERT(!mappings.empty());
    const auto & mapping = mappings.at(idx);

    *first = mapping->size();
    *last  = 0;
    *addr = mapping->addr();
    for (ggml_tensor * tensor = ggml_get_first_tensor(ctx); tensor; tensor = ggml_get_next_tensor(ctx, tensor)) {
        const auto * weight = get_weight(ggml_get_name(tensor));
        if (!weight || weight->idx != idx) {
            continue;
        }
        *first = std::min(*first, weight->offs);
        *last  = std::max(*last,  weight->offs + ggml_nbytes(tensor));
    }
}

void llama_model_loader::load_data_for(struct ggml_tensor * cur) const {
    const auto & w = require_weight(ggml_get_name(cur));