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llama : support multiple classifier outputs and labels (#13940)

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This commit is contained in:
Sigbjørn Skjæret
2025-06-06 09:03:25 +02:00
committed by GitHub
parent 1caae7fc6c
commit d17a809ef0
6 changed files with 101 additions and 24 deletions
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59
src/llama-model-loader.cpp
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@@ -288,9 +288,10 @@ namespace GGUFMeta {
template<typename T>
bool llama_model_loader::get_arr(const std::string & key, std::vector<T> & result, bool required) {
const int kid = gguf_find_key(meta.get(), key.c_str());
const gguf_context * ctx = meta.get();
const int kid = gguf_find_key(ctx, key.c_str());
if (kid < 0 || gguf_get_kv_type(meta.get(), kid) != GGUF_TYPE_ARRAY) {
if (kid < 0 || gguf_get_kv_type(ctx, kid) != GGUF_TYPE_ARRAY) {
if (required) {
throw std::runtime_error(format("array key not found in model: %s", key.c_str()));
}
@@ -298,28 +299,40 @@ namespace GGUFMeta {
}
struct GGUFMeta::ArrayInfo arr_info =
GGUFMeta::GKV<GGUFMeta::ArrayInfo>::get_kv(meta.get(), kid);
GGUFMeta::GKV<GGUFMeta::ArrayInfo>::get_kv(ctx, kid);
switch (arr_info.gt) {
case GGUF_TYPE_UINT32:
case GGUF_TYPE_INT32: GGML_ASSERT((std::is_same<T, int32_t>::value) ||
(std::is_same<T, uint32_t>::value)); break;
case GGUF_TYPE_FLOAT32: GGML_ASSERT((std::is_same<T, float>::value)); break;
case GGUF_TYPE_INT32: GGML_ASSERT((std::is_same<T, int32_t>::value) ||
(std::is_same<T, uint32_t>::value)); break;
case GGUF_TYPE_FLOAT32: GGML_ASSERT((std::is_same<T, float>::value)); break;
case GGUF_TYPE_STRING: GGML_ASSERT((std::is_same<T, std::string>::value)); break;
default:
throw std::runtime_error(format("%s is not a float32/uint32/int32 array", key.c_str()));
throw std::runtime_error(format("%s is not a string/float32/uint32/int32 array", key.c_str()));
}
result.resize(arr_info.length);
result.assign((const T*)arr_info.data, (const T *)arr_info.data + arr_info.length);
if constexpr (std::is_same<T, std::string>::value) {
const size_t n_items = gguf_get_arr_n(ctx, kid);
result.clear();
for (size_t i = 0; i < n_items; i++) {
const T value = gguf_get_arr_str(ctx, kid, i);
result.emplace_back(value);
}
} else {
result.resize(arr_info.length);
result.assign((const T*)arr_info.data, (const T *)arr_info.data + arr_info.length);
}
return true;
}
template<typename T, size_t N_MAX>
bool llama_model_loader::get_arr(const std::string & key, std::array<T, N_MAX> & result, bool required) {
const int kid = gguf_find_key(meta.get(), key.c_str());
const gguf_context * ctx = meta.get();
const int kid = gguf_find_key(ctx, key.c_str());
if (kid < 0 || gguf_get_kv_type(meta.get(), kid) != GGUF_TYPE_ARRAY) {
if (kid < 0 || gguf_get_kv_type(ctx, kid) != GGUF_TYPE_ARRAY) {
if (required) {
throw std::runtime_error(format("array key not found in model: %s", key.c_str()));
}
@@ -327,22 +340,32 @@ namespace GGUFMeta {
}
struct GGUFMeta::ArrayInfo arr_info =
GGUFMeta::GKV<GGUFMeta::ArrayInfo>::get_kv(meta.get(), kid);
GGUFMeta::GKV<GGUFMeta::ArrayInfo>::get_kv(ctx, kid);
switch (arr_info.gt) {
case GGUF_TYPE_UINT32:
case GGUF_TYPE_INT32: GGML_ASSERT((std::is_same<T, int32_t>::value) ||
(std::is_same<T, uint32_t>::value)); break;
case GGUF_TYPE_FLOAT32: GGML_ASSERT((std::is_same<T, float>::value)); break;
case GGUF_TYPE_INT32: GGML_ASSERT((std::is_same<T, int32_t>::value) ||
(std::is_same<T, uint32_t>::value)); break;
case GGUF_TYPE_FLOAT32: GGML_ASSERT((std::is_same<T, float>::value)); break;
case GGUF_TYPE_STRING: GGML_ASSERT((std::is_same<T, std::string>::value)); break;
default:
throw std::runtime_error(format("%s is not a float32/uint32/int32 array", key.c_str()));
throw std::runtime_error(format("%s is not a string/float32/uint32/int32 array", key.c_str()));
}
if (arr_info.length > N_MAX) {
throw std::runtime_error(format("array length %u for key %s exceeds max %u", (uint32_t) arr_info.length, key.c_str(), (uint32_t) N_MAX));
}
std::copy((const T*)arr_info.data, (const T *)arr_info.data + arr_info.length, result.begin());
if constexpr (std::is_same<T, std::string>::value) {
const size_t n_items = gguf_get_arr_n(ctx, kid);
for (size_t i = 0; i < n_items; i++) {
const T value = gguf_get_arr_str(ctx, kid, i);
result[i] = value;
}
} else {
std::copy((const T*)arr_info.data, (const T *)arr_info.data + arr_info.length, result.begin());
}
return true;
}
@@ -352,6 +375,8 @@ namespace GGUFMeta {
return get_arr(llm_kv(kid), result, required);
}
template bool llama_model_loader::get_arr<std::vector<std::string>>(enum llm_kv kid, std::vector<std::string> & result, bool required);
template<typename T>
bool llama_model_loader::get_key(const std::string & key, T & result, bool required) {
auto it = kv_overrides.find(key);