mirror of https://github.com/google/gemma.cpp.git
84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
// Copyright 2024 Google LLC
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// SPDX-License-Identifier: Apache-2.0
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <fstream>
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#include <iostream>
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#include <string>
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#include <vector>
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#include "compression/io.h"
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#include "gemma/benchmark_helper.h"
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#include "gemma/gemma.h" // LayersOutputFunc
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#include "util/args.h"
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#include "hwy/base.h"
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#include "nlohmann/json.hpp"
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using json = nlohmann::json;
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namespace gcpp {
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class PromptArgs : public ArgsBase<PromptArgs> {
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public:
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PromptArgs(int argc, char* argv[]) { InitAndParse(argc, argv); }
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Path layers_output; // optional
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std::string prompt;
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// Returns error string or nullptr if OK.
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const char* Validate() const {
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if (prompt.empty()) return "Must specify --prompt";
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return nullptr;
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}
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template <class Visitor>
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void ForEach(const Visitor& visitor) {
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visitor(layers_output, "layers_output", Path(""),
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"Path to store layers output", 2);
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visitor(prompt, "prompt", std::string(""), "Prompt to the model", 2);
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}
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};
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int Run(int argc, char** argv) {
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PromptArgs prompt_args(argc, argv);
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AbortIfInvalidArgs(prompt_args);
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json json_output;
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GemmaEnv env(argc, argv);
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env.MutableConfig().layers_output =
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prompt_args.layers_output.Empty()
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? LayersOutputFunc()
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: [&json_output](int pos, const std::string& key, const float* values,
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size_t values_len) {
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std::vector<float> v{values, values + values_len};
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json_output[std::to_string(pos)][key] = v;
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};
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const auto [answer, token_count] = env.QueryModel(prompt_args.prompt);
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std::cout << answer.substr(prompt_args.prompt.size()) << "\n" << std::flush;
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if (env.MutableConfig().layers_output) {
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std::ofstream output_f(prompt_args.layers_output.path, std::ofstream::out);
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if (!output_f) HWY_ABORT("Opening layer output file failed");
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output_f << json_output.dump();
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if (!output_f) HWY_ABORT("Writing to layer output file failed");
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output_f.close();
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}
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return 0;
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}
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} // namespace gcpp
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int main(int argc, char** argv) { return gcpp::Run(argc, argv); }
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