whisper.cpp/examples/bench/bench.cpp at master · CodeLinaro/whisper.cpp · GitHub

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#include"whisper.h"

#include<cstdio>
#include<cstring>
#include<string>
#include<thread>

// command-line parameters
structwhisper_params {
int32_t n_threads = std::min(4, (int32_t) std::thread::hardware_concurrency());
int32_t what = 0; // what to benchmark: 0 - whisper encoder, 1 - memcpy, 2 - ggml_mul_mat

 std::string model = "models/ggml-base.en.bin";

bool use_gpu = true;
bool flash_attn = false;
};

voidwhisper_print_usage(int argc, char ** argv, const whisper_params & params);

boolwhisper_params_parse(int argc, char ** argv, whisper_params & params) {
for (int i = 1; i < argc; i++) {
 std::string arg = argv[i];

if (arg == "-h" || arg == "--help") {
whisper_print_usage(argc, argv, params);
exit(0);
 }
elseif (arg == "-t" || arg == "--threads") { params.n_threads = std::stoi(argv[++i]); }
elseif (arg == "-m" || arg == "--model") { params.model = argv[++i]; }
elseif (arg == "-w" || arg == "--what") { params.what = atoi(argv[++i]); }
elseif (arg == "-ng" || arg == "--no-gpu") { params.use_gpu = false; }
elseif (arg == "-fa" || arg == "--flash-attn") { params.flash_attn = true; }
else {
fprintf(stderr, "error: unknown argument: %s\n", arg.c_str());
whisper_print_usage(argc, argv, params);
exit(0);
 }
 }

returntrue;
}

voidwhisper_print_usage(int/*argc*/, char ** argv, const whisper_params & params) {
fprintf(stderr, "\n");
fprintf(stderr, "usage: %s [options]\n", argv[0]);
fprintf(stderr, "\n");
fprintf(stderr, "options:\n");
fprintf(stderr, " -h, --help [default] show this help message and exit\n");
fprintf(stderr, " -t N, --threads N [%-7d] number of threads to use during computation\n", params.n_threads);
fprintf(stderr, " -m FNAME, --model FNAME [%-7s] model path\n", params.model.c_str());
fprintf(stderr, " -w N, --what N [%-7d] what to benchmark:\n", params.what);
fprintf(stderr, " -ng, --no-gpu [%-7s] disable GPU\n", params.use_gpu ? "false" : "true");
fprintf(stderr, " -fa, --flash-attn [%-7s] enable flash attention\n", params.flash_attn ? "true" : "false");
fprintf(stderr, " %-7s 0 - whisper\n", "");
fprintf(stderr, " %-7s 1 - memcpy\n", "");
fprintf(stderr, " %-7s 2 - ggml_mul_mat\n", "");
fprintf(stderr, "\n");
}

intwhisper_bench_full(const whisper_params & params) {
// whisper init

structwhisper_context_params cparams = whisper_context_default_params();

 cparams.use_gpu = params.use_gpu;
 cparams.flash_attn = params.flash_attn;

structwhisper_context * ctx = whisper_init_from_file_with_params(params.model.c_str(), cparams);

 {
fprintf(stderr, "\n");
fprintf(stderr, "system_info: n_threads = %d / %d | %s\n", params.n_threads, std::thread::hardware_concurrency(), whisper_print_system_info());
 }

if (ctx == nullptr) {
fprintf(stderr, "error: failed to initialize whisper context\n");
return2;
 }

constint n_mels = whisper_model_n_mels(ctx);

if (int ret = whisper_set_mel(ctx, nullptr, 0, n_mels)) {
fprintf(stderr, "error: failed to set mel: %d\n", ret);
return3;
 }
// heat encoder
if (int ret = whisper_encode(ctx, 0, params.n_threads) != 0) {
fprintf(stderr, "error: failed to encode: %d\n", ret);
return4;
 }

 whisper_token tokens[512];
memset(tokens, 0, sizeof(tokens));

// prompt heat
if (int ret = whisper_decode(ctx, tokens, 256, 0, params.n_threads) != 0) {
fprintf(stderr, "error: failed to decode: %d\n", ret);
return4;
 }

// text-generation heat
if (int ret = whisper_decode(ctx, tokens, 1, 256, params.n_threads) != 0) {
fprintf(stderr, "error: failed to decode: %d\n", ret);
return4;
 }

whisper_reset_timings(ctx);

// actual run
if (int ret = whisper_encode(ctx, 0, params.n_threads) != 0) {
fprintf(stderr, "error: failed to encode: %d\n", ret);
return4;
 }

// text-generation
for (int i = 0; i < 256; i++) {
if (int ret = whisper_decode(ctx, tokens, 1, i, params.n_threads) != 0) {
fprintf(stderr, "error: failed to decode: %d\n", ret);
return4;
 }
 }

// batched decoding
for (int i = 0; i < 64; i++) {
if (int ret = whisper_decode(ctx, tokens, 5, 0, params.n_threads) != 0) {
fprintf(stderr, "error: failed to decode: %d\n", ret);
return4;
 }
 }

// prompt processing
for (int i = 0; i < 16; i++) {
if (int ret = whisper_decode(ctx, tokens, 256, 0, params.n_threads) != 0) {
fprintf(stderr, "error: failed to decode: %d\n", ret);
return4;
 }
 }

whisper_print_timings(ctx);
whisper_free(ctx);

fprintf(stderr, "\n");
fprintf(stderr, "If you wish, you can submit these results here:\n");
fprintf(stderr, "\n");
fprintf(stderr, " https://github.com/ggerganov/whisper.cpp/issues/89\n");
fprintf(stderr, "\n");
fprintf(stderr, "Please include the following information:\n");
fprintf(stderr, "\n");
fprintf(stderr, " - CPU model\n");
fprintf(stderr, " - Operating system\n");
fprintf(stderr, " - Compiler\n");
fprintf(stderr, "\n");

return0;
}

intmain(int argc, char ** argv) {
 whisper_params params;

if (whisper_params_parse(argc, argv, params) == false) {
return1;
 }

int ret = -1;

switch (params.what) {
case0: ret = whisper_bench_full(params); break;
case1: ret = whisper_bench_memcpy(params.n_threads); break;
case2: ret = whisper_bench_ggml_mul_mat(params.n_threads); break;
default: fprintf(stderr, "error: unknown benchmark: %d\n", params.what); break;
 }

return ret;
}