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530 lines
22 KiB
C++
530 lines
22 KiB
C++
#include "common.h"
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#include <cassert>
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#include <iostream>
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#include <cstring>
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#include <fstream>
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#include <string>
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#include <iterator>
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#include <algorithm>
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#include <sstream>
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#if defined(__APPLE__) && defined(__MACH__)
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#endif
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#if defined (_WIN32)
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#include <fcntl.h>
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#include <io.h>
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#pragma comment(lib,"kernel32.lib")
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extern "C" __declspec(dllimport) void* __stdcall GetStdHandle(unsigned long nStdHandle);
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extern "C" __declspec(dllimport) int __stdcall GetConsoleMode(void* hConsoleHandle, unsigned long* lpMode);
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extern "C" __declspec(dllimport) int __stdcall SetConsoleMode(void* hConsoleHandle, unsigned long dwMode);
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extern "C" __declspec(dllimport) int __stdcall SetConsoleCP(unsigned int wCodePageID);
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extern "C" __declspec(dllimport) int __stdcall SetConsoleOutputCP(unsigned int wCodePageID);
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extern "C" __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int CodePage, unsigned long dwFlags,
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const wchar_t * lpWideCharStr, int cchWideChar,
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char * lpMultiByteStr, int cbMultiByte,
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const char * lpDefaultChar, bool * lpUsedDefaultChar);
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#define CP_UTF8 65001
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#endif
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int32_t get_num_physical_cores() {
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#ifdef __linux__
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std::ifstream cpuinfo("/proc/cpuinfo");
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std::string line;
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while (std::getline(cpuinfo, line)) {
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std::size_t pos = line.find("cpu cores");
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if (pos != std::string::npos) {
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pos = line.find(": ", pos);
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if (pos != std::string::npos) {
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try {
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// Extract the number and return it
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return static_cast<int32_t>(std::stoul(line.substr(pos + 2)));
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} catch (const std::invalid_argument &) {
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// Ignore if we could not parse
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}
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}
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}
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}
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#elif defined(__APPLE__) && defined(__MACH__)
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int32_t num_physical_cores;
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size_t len = sizeof(num_physical_cores);
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int result = sysctlbyname("hw.perflevel0.physicalcpu", &num_physical_cores, &len, NULL, 0);
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if (result == 0) {
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return num_physical_cores;
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}
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result = sysctlbyname("hw.physicalcpu", &num_physical_cores, &len, NULL, 0);
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if (result == 0) {
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return num_physical_cores;
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}
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#elif defined(_WIN32)
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//TODO: Implement
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#endif
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unsigned int n_threads = std::thread::hardware_concurrency();
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return n_threads > 0 ? (n_threads <= 4 ? n_threads : n_threads / 2) : 4;
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}
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void process_escapes(std::string& input) {
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std::size_t input_len = input.length();
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std::size_t output_idx = 0;
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for (std::size_t input_idx = 0; input_idx < input_len; ++input_idx) {
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if (input[input_idx] == '\\' && input_idx + 1 < input_len) {
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switch (input[++input_idx]) {
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case 'n': input[output_idx++] = '\n'; break;
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case 'r': input[output_idx++] = '\r'; break;
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case 't': input[output_idx++] = '\t'; break;
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case '\'': input[output_idx++] = '\''; break;
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case '\"': input[output_idx++] = '\"'; break;
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case '\\': input[output_idx++] = '\\'; break;
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default: input[output_idx++] = '\\';
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input[output_idx++] = input[input_idx]; break;
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}
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} else {
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input[output_idx++] = input[input_idx];
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}
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}
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input.resize(output_idx);
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}
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bool gpt_params_parse(int argc, char ** argv, gpt_params & params) {
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bool invalid_param = false;
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bool escape_prompt = false;
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std::string arg;
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gpt_params default_params;
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for (int i = 1; i < argc; i++) {
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arg = argv[i];
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if (arg == "-s" || arg == "--seed") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.seed = std::stoi(argv[i]);
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} else if (arg == "-t" || arg == "--threads") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_threads = std::stoi(argv[i]);
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} else if (arg == "-p" || arg == "--prompt") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.prompt = argv[i];
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} else if (arg == "-e") {
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escape_prompt = true;
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} else if (arg == "--session") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.path_session = argv[i];
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} else if (arg == "-f" || arg == "--file") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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std::ifstream file(argv[i]);
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if (!file) {
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fprintf(stderr, "error: failed to open file '%s'\n", argv[i]);
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invalid_param = true;
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break;
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}
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std::copy(std::istreambuf_iterator<char>(file), std::istreambuf_iterator<char>(), back_inserter(params.prompt));
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if (params.prompt.back() == '\n') {
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params.prompt.pop_back();
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}
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} else if (arg == "-n" || arg == "--n_predict") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_predict = std::stoi(argv[i]);
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} else if (arg == "--top_k") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.top_k = std::stoi(argv[i]);
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} else if (arg == "-c" || arg == "--ctx_size") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_ctx = std::stoi(argv[i]);
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} else if (arg == "--memory_f32") {
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params.memory_f16 = false;
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} else if (arg == "--top_p") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.top_p = std::stof(argv[i]);
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} else if (arg == "--temp") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.temp = std::stof(argv[i]);
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} else if (arg == "--tfs") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.tfs_z = std::stof(argv[i]);
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} else if (arg == "--typical") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.typical_p = std::stof(argv[i]);
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} else if (arg == "--repeat_last_n") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.repeat_last_n = std::stoi(argv[i]);
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} else if (arg == "--repeat_penalty") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.repeat_penalty = std::stof(argv[i]);
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} else if (arg == "--frequency_penalty") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.frequency_penalty = std::stof(argv[i]);
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} else if (arg == "--presence_penalty") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.presence_penalty = std::stof(argv[i]);
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} else if (arg == "--mirostat") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.mirostat = std::stoi(argv[i]);
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} else if (arg == "--mirostat_lr") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.mirostat_eta = std::stof(argv[i]);
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} else if (arg == "--mirostat_ent") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.mirostat_tau = std::stof(argv[i]);
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} else if (arg == "-b" || arg == "--batch_size") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_batch = std::stoi(argv[i]);
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params.n_batch = std::min(512, params.n_batch);
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} else if (arg == "--keep") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_keep = std::stoi(argv[i]);
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} else if (arg == "-m" || arg == "--model") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.model = argv[i];
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} else if (arg == "--lora") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.lora_adapter = argv[i];
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params.use_mmap = false;
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} else if (arg == "--lora-base") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.lora_base = argv[i];
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} else if (arg == "-i" || arg == "--interactive") {
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params.interactive = true;
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} else if (arg == "--embedding") {
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params.embedding = true;
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} else if (arg == "--interactive-first") {
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params.interactive_first = true;
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} else if (arg == "-ins" || arg == "--instruct") {
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params.instruct = true;
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} else if (arg == "--color") {
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params.use_color = true;
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} else if (arg == "--mlock") {
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params.use_mlock = true;
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} else if (arg == "--no-mmap") {
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params.use_mmap = false;
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} else if (arg == "--mtest") {
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params.mem_test = true;
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} else if (arg == "--verbose-prompt") {
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params.verbose_prompt = true;
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} else if (arg == "-r" || arg == "--reverse-prompt") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.antiprompt.push_back(argv[i]);
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} else if (arg == "--perplexity") {
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params.perplexity = true;
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} else if (arg == "--ignore-eos") {
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params.logit_bias[llama_token_eos()] = -INFINITY;
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} else if (arg == "--no-penalize-nl") {
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params.penalize_nl = false;
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} else if (arg == "-l" || arg == "--logit-bias") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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std::stringstream ss(argv[i]);
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llama_token key;
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char sign;
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std::string value_str;
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try {
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if (ss >> key && ss >> sign && std::getline(ss, value_str) && (sign == '+' || sign == '-')) {
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params.logit_bias[key] = std::stof(value_str) * ((sign == '-') ? -1.0f : 1.0f);
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} else {
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throw std::exception();
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}
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} catch (const std::exception &e) {
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invalid_param = true;
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break;
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}
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} else if (arg == "--n_parts") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_parts = std::stoi(argv[i]);
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} else if (arg == "-h" || arg == "--help") {
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gpt_print_usage(argc, argv, default_params);
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exit(0);
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} else if (arg == "--random-prompt") {
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params.random_prompt = true;
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} else if (arg == "--in-prefix") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.input_prefix = argv[i];
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} else if (arg == "--in-suffix") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.input_suffix = argv[i];
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} else {
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fprintf(stderr, "error: unknown argument: %s\n", arg.c_str());
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gpt_print_usage(argc, argv, default_params);
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exit(1);
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}
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}
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if (invalid_param) {
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fprintf(stderr, "error: invalid parameter for argument: %s\n", arg.c_str());
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gpt_print_usage(argc, argv, default_params);
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exit(1);
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}
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if (escape_prompt) {
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process_escapes(params.prompt);
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}
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return true;
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}
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void gpt_print_usage(int /*argc*/, char ** argv, const gpt_params & params) {
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fprintf(stderr, "usage: %s [options]\n", argv[0]);
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fprintf(stderr, "\n");
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fprintf(stderr, "options:\n");
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fprintf(stderr, " -h, --help show this help message and exit\n");
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fprintf(stderr, " -i, --interactive run in interactive mode\n");
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fprintf(stderr, " --interactive-first run in interactive mode and wait for input right away\n");
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fprintf(stderr, " -ins, --instruct run in instruction mode (use with Alpaca models)\n");
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fprintf(stderr, " -r PROMPT, --reverse-prompt PROMPT\n");
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fprintf(stderr, " run in interactive mode and poll user input upon seeing PROMPT (can be\n");
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fprintf(stderr, " specified more than once for multiple prompts).\n");
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fprintf(stderr, " --color colorise output to distinguish prompt and user input from generations\n");
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fprintf(stderr, " -s SEED, --seed SEED RNG seed (default: -1, use random seed for < 0)\n");
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fprintf(stderr, " -t N, --threads N number of threads to use during computation (default: %d)\n", params.n_threads);
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fprintf(stderr, " -p PROMPT, --prompt PROMPT\n");
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fprintf(stderr, " prompt to start generation with (default: empty)\n");
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fprintf(stderr, " -e process prompt escapes sequences (\\n, \\r, \\t, \\', \\\", \\\\)\n");
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fprintf(stderr, " --session FNAME file to cache model state in (may be large!) (default: none)\n");
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fprintf(stderr, " --random-prompt start with a randomized prompt.\n");
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fprintf(stderr, " --in-prefix STRING string to prefix user inputs with (default: empty)\n");
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fprintf(stderr, " --in-suffix STRING string to suffix after user inputs with (default: empty)\n");
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fprintf(stderr, " -f FNAME, --file FNAME\n");
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fprintf(stderr, " prompt file to start generation.\n");
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fprintf(stderr, " -n N, --n_predict N number of tokens to predict (default: %d, -1 = infinity)\n", params.n_predict);
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fprintf(stderr, " --top_k N top-k sampling (default: %d, 0 = disabled)\n", params.top_k);
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fprintf(stderr, " --top_p N top-p sampling (default: %.1f, 1.0 = disabled)\n", (double)params.top_p);
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fprintf(stderr, " --tfs N tail free sampling, parameter z (default: %.1f, 1.0 = disabled)\n", (double)params.tfs_z);
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fprintf(stderr, " --typical N locally typical sampling, parameter p (default: %.1f, 1.0 = disabled)\n", (double)params.typical_p);
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fprintf(stderr, " --repeat_last_n N last n tokens to consider for penalize (default: %d, 0 = disabled, -1 = ctx_size)\n", params.repeat_last_n);
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fprintf(stderr, " --repeat_penalty N penalize repeat sequence of tokens (default: %.1f, 1.0 = disabled)\n", (double)params.repeat_penalty);
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fprintf(stderr, " --presence_penalty N repeat alpha presence penalty (default: %.1f, 0.0 = disabled)\n", (double)params.presence_penalty);
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fprintf(stderr, " --frequency_penalty N repeat alpha frequency penalty (default: %.1f, 0.0 = disabled)\n", (double)params.frequency_penalty);
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fprintf(stderr, " --mirostat N use Mirostat sampling.\n");
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fprintf(stderr, " Top K, Nucleus, Tail Free and Locally Typical samplers are ignored if used.\n");
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fprintf(stderr, " (default: %d, 0 = disabled, 1 = Mirostat, 2 = Mirostat 2.0)\n", params.mirostat);
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fprintf(stderr, " --mirostat_lr N Mirostat learning rate, parameter eta (default: %.1f)\n", (double)params.mirostat_eta);
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fprintf(stderr, " --mirostat_ent N Mirostat target entropy, parameter tau (default: %.1f)\n", (double)params.mirostat_tau);
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fprintf(stderr, " -l TOKEN_ID(+/-)BIAS, --logit-bias TOKEN_ID(+/-)BIAS\n");
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fprintf(stderr, " modifies the likelihood of token appearing in the completion,\n");
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fprintf(stderr, " i.e. `--logit-bias 15043+1` to increase likelihood of token ' Hello',\n");
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fprintf(stderr, " or `--logit-bias 15043-1` to decrease likelihood of token ' Hello'\n");
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fprintf(stderr, " -c N, --ctx_size N size of the prompt context (default: %d)\n", params.n_ctx);
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fprintf(stderr, " --ignore-eos ignore end of stream token and continue generating (implies --logit-bias 2-inf)\n");
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fprintf(stderr, " --no-penalize-nl do not penalize newline token\n");
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fprintf(stderr, " --memory_f32 use f32 instead of f16 for memory key+value\n");
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fprintf(stderr, " --temp N temperature (default: %.1f)\n", (double)params.temp);
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fprintf(stderr, " --n_parts N number of model parts (default: -1 = determine from dimensions)\n");
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fprintf(stderr, " -b N, --batch_size N batch size for prompt processing (default: %d)\n", params.n_batch);
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fprintf(stderr, " --perplexity compute perplexity over the prompt\n");
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fprintf(stderr, " --keep number of tokens to keep from the initial prompt (default: %d, -1 = all)\n", params.n_keep);
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if (llama_mlock_supported()) {
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fprintf(stderr, " --mlock force system to keep model in RAM rather than swapping or compressing\n");
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}
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if (llama_mmap_supported()) {
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fprintf(stderr, " --no-mmap do not memory-map model (slower load but may reduce pageouts if not using mlock)\n");
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}
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fprintf(stderr, " --mtest compute maximum memory usage\n");
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fprintf(stderr, " --verbose-prompt print prompt before generation\n");
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fprintf(stderr, " --lora FNAME apply LoRA adapter (implies --no-mmap)\n");
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fprintf(stderr, " --lora-base FNAME optional model to use as a base for the layers modified by the LoRA adapter\n");
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fprintf(stderr, " -m FNAME, --model FNAME\n");
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fprintf(stderr, " model path (default: %s)\n", params.model.c_str());
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fprintf(stderr, "\n");
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}
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std::string gpt_random_prompt(std::mt19937 & rng) {
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const int r = rng() % 10;
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switch (r) {
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case 0: return "So";
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case 1: return "Once upon a time";
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case 2: return "When";
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case 3: return "The";
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case 4: return "After";
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case 5: return "If";
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case 6: return "import";
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case 7: return "He";
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case 8: return "She";
|
|
case 9: return "They";
|
|
default: return "To";
|
|
}
|
|
|
|
return "The";
|
|
}
|
|
|
|
// TODO: not great allocating this every time
|
|
std::vector<llama_token> llama_tokenize(struct llama_context * ctx, const std::string & text, bool add_bos) {
|
|
// initialize to prompt numer of chars, since n_tokens <= n_prompt_chars
|
|
std::vector<llama_token> res(text.size() + (int)add_bos);
|
|
int n = llama_tokenize(ctx, text.c_str(), res.data(), res.size(), add_bos);
|
|
assert(n >= 0);
|
|
res.resize(n);
|
|
|
|
return res;
|
|
}
|
|
|
|
struct llama_context * llama_init_from_gpt_params(const gpt_params & params) {
|
|
auto lparams = llama_context_default_params();
|
|
|
|
lparams.n_ctx = params.n_ctx;
|
|
lparams.n_parts = params.n_parts;
|
|
lparams.seed = params.seed;
|
|
lparams.f16_kv = params.memory_f16;
|
|
lparams.use_mmap = params.use_mmap;
|
|
lparams.use_mlock = params.use_mlock;
|
|
lparams.logits_all = params.perplexity;
|
|
lparams.embedding = params.embedding;
|
|
|
|
llama_context * lctx = llama_init_from_file(params.model.c_str(), lparams);
|
|
|
|
if (lctx == NULL) {
|
|
fprintf(stderr, "%s: error: failed to load model '%s'\n", __func__, params.model.c_str());
|
|
return NULL;
|
|
}
|
|
|
|
if (!params.lora_adapter.empty()) {
|
|
int err = llama_apply_lora_from_file(lctx,
|
|
params.lora_adapter.c_str(),
|
|
params.lora_base.empty() ? NULL : params.lora_base.c_str(),
|
|
params.n_threads);
|
|
if (err != 0) {
|
|
fprintf(stderr, "%s: error: failed to apply lora adapter\n", __func__);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
return lctx;
|
|
}
|
|
|
|
/* Keep track of current color of output, and emit ANSI code if it changes. */
|
|
void set_console_color(console_state & con_st, console_color_t color) {
|
|
if (con_st.use_color && con_st.color != color) {
|
|
switch(color) {
|
|
case CONSOLE_COLOR_DEFAULT:
|
|
printf(ANSI_COLOR_RESET);
|
|
break;
|
|
case CONSOLE_COLOR_PROMPT:
|
|
printf(ANSI_COLOR_YELLOW);
|
|
break;
|
|
case CONSOLE_COLOR_USER_INPUT:
|
|
printf(ANSI_BOLD ANSI_COLOR_GREEN);
|
|
break;
|
|
}
|
|
con_st.color = color;
|
|
}
|
|
}
|
|
|
|
#if defined (_WIN32)
|
|
void win32_console_init(bool enable_color) {
|
|
unsigned long dwMode = 0;
|
|
void* hConOut = GetStdHandle((unsigned long)-11); // STD_OUTPUT_HANDLE (-11)
|
|
if (!hConOut || hConOut == (void*)-1 || !GetConsoleMode(hConOut, &dwMode)) {
|
|
hConOut = GetStdHandle((unsigned long)-12); // STD_ERROR_HANDLE (-12)
|
|
if (hConOut && (hConOut == (void*)-1 || !GetConsoleMode(hConOut, &dwMode))) {
|
|
hConOut = 0;
|
|
}
|
|
}
|
|
if (hConOut) {
|
|
// Enable ANSI colors on Windows 10+
|
|
if (enable_color && !(dwMode & 0x4)) {
|
|
SetConsoleMode(hConOut, dwMode | 0x4); // ENABLE_VIRTUAL_TERMINAL_PROCESSING (0x4)
|
|
}
|
|
// Set console output codepage to UTF8
|
|
SetConsoleOutputCP(CP_UTF8);
|
|
}
|
|
void* hConIn = GetStdHandle((unsigned long)-10); // STD_INPUT_HANDLE (-10)
|
|
if (hConIn && hConIn != (void*)-1 && GetConsoleMode(hConIn, &dwMode)) {
|
|
// Set console input codepage to UTF16
|
|
_setmode(_fileno(stdin), _O_WTEXT);
|
|
}
|
|
}
|
|
|
|
// Convert a wide Unicode string to an UTF8 string
|
|
void win32_utf8_encode(const std::wstring & wstr, std::string & str) {
|
|
int size_needed = WideCharToMultiByte(CP_UTF8, 0, &wstr[0], (int)wstr.size(), NULL, 0, NULL, NULL);
|
|
std::string strTo(size_needed, 0);
|
|
WideCharToMultiByte(CP_UTF8, 0, &wstr[0], (int)wstr.size(), &strTo[0], size_needed, NULL, NULL);
|
|
str = strTo;
|
|
}
|
|
#endif
|