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server: allow to override threads server pool with --threads-http (#5794)

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Pierrick Hymbert 2024-03-01 10:08:08 +01:00 committed by GitHub
parent 6ea0f010ff
commit 5cb02b4a01
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2 changed files with 17 additions and 0 deletions
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1
examples/server/README.md
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@ -18,6 +18,7 @@ The project is under active development, and we are [looking for feedback and co
- `--threads N`, `-t N`: Set the number of threads to use during generation.
- `-tb N, --threads-batch N`: Set the number of threads to use during batch and prompt processing. If not specified, the number of threads will be set to the number of threads used for generation.
- `--threads-http N`: number of threads in the http server pool to process requests (default: `std::thread::hardware_concurrency()`)
- `-m FNAME`, `--model FNAME`: Specify the path to the LLaMA model file (e.g., `models/7B/ggml-model.gguf`).
- `-a ALIAS`, `--alias ALIAS`: Set an alias for the model. The alias will be returned in API responses.
- `-c N`, `--ctx-size N`: Set the size of the prompt context. The default is 512, but LLaMA models were built with a context of 2048, which will provide better results for longer input/inference. The size may differ in other models, for example, baichuan models were build with a context of 4096.

16
examples/server/server.cpp
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@ -43,6 +43,7 @@ struct server_params {
int32_t write_timeout = 600;
bool slots_endpoint = true;
bool metrics_endpoint = false;
int n_threads_http = -1;
};
bool server_verbose = false;
@ -2012,6 +2013,7 @@ static void server_print_usage(const char *argv0, const gpt_params &params,
printf(" -v, --verbose verbose output (default: %s)\n", server_verbose ? "enabled" : "disabled");
printf(" -t N, --threads N number of threads to use during computation (default: %d)\n", params.n_threads);
printf(" -tb N, --threads-batch N number of threads to use during batch and prompt processing (default: same as --threads)\n");
printf(" --threads-http N number of threads in the http server pool to process requests (default: hardware concurrency)\n");
printf(" -c N, --ctx-size N size of the prompt context (default: %d)\n", params.n_ctx);
printf(" --rope-scaling {none,linear,yarn}\n");
printf(" RoPE frequency scaling method, defaults to linear unless specified by the model\n");
@ -2298,6 +2300,15 @@ static void server_params_parse(int argc, char **argv, server_params &sparams,
}
params.n_threads_batch = std::stoi(argv[i]);
}
else if (arg == "--threads-http")
{
if (++i >= argc)
{
invalid_param = true;
break;
}
sparams.n_threads_http = std::stoi(argv[i]);
}
else if (arg == "-b" || arg == "--batch-size")
{
if (++i >= argc)
@ -3449,6 +3460,11 @@ int main(int argc, char **argv)
}*/
//);
if (sparams.n_threads_http > 0) {
log_data["n_threads_http"] = std::to_string(sparams.n_threads_http);
svr.new_task_queue = [&sparams] { return new httplib::ThreadPool(sparams.n_threads_http); };
}
LOG_INFO("HTTP server listening", log_data);
// run the HTTP server in a thread - see comment below
std::thread t([&]()