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rpc : add command line option for number of threads for the CPU backend (#13060)

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closes #13051
This commit is contained in:
Radoslav Gerganov
2025-04-23 10:32:49 +03:00
committed by GitHub
parent 658987cfc9
commit 2cca6c01e4
1 changed files with 17 additions and 2 deletions
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19
examples/rpc/rpc-server.cpp
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@ -22,6 +22,7 @@
#include "ggml-rpc.h"
#ifdef _WIN32
# define NOMINMAX
# define DIRECTORY_SEPARATOR '\\'
# include <locale>
# include <windows.h>
@ -37,6 +38,8 @@
#include <stdio.h>
#include <vector>
#include <filesystem>
#include <algorithm>
#include <thread>
namespace fs = std::filesystem;
@ -150,12 +153,14 @@ struct rpc_server_params {
int port = 50052;
size_t backend_mem = 0;
bool use_cache = false;
int n_threads = std::max(1U, std::thread::hardware_concurrency()/2);
};
static void print_usage(int /*argc*/, char ** argv, rpc_server_params params) {
fprintf(stderr, "Usage: %s [options]\n\n", argv[0]);
fprintf(stderr, "options:\n");
fprintf(stderr, " -h, --help show this help message and exit\n");
fprintf(stderr, " -t, --threads number of threads for the CPU backend (default: %d)\n", params.n_threads);
fprintf(stderr, " -H HOST, --host HOST host to bind to (default: %s)\n", params.host.c_str());
fprintf(stderr, " -p PORT, --port PORT port to bind to (default: %d)\n", params.port);
fprintf(stderr, " -m MEM, --mem MEM backend memory size (in MB)\n");
@ -172,6 +177,15 @@ static bool rpc_server_params_parse(int argc, char ** argv, rpc_server_params &
return false;
}
params.host = argv[i];
} else if (arg == "-t" || arg == "--threads") {
if (++i >= argc) {
return false;
}
params.n_threads = std::stoi(argv[i]);
if (params.n_threads <= 0) {
fprintf(stderr, "error: invalid number of threads: %d\n", params.n_threads);
return false;
}
} else if (arg == "-p" || arg == "--port") {
if (++i >= argc) {
return false;
@ -199,7 +213,7 @@ static bool rpc_server_params_parse(int argc, char ** argv, rpc_server_params &
return true;
}
static ggml_backend_t create_backend() {
static ggml_backend_t create_backend(const rpc_server_params & params) {
ggml_backend_t backend = NULL;
#ifdef GGML_USE_CUDA
fprintf(stderr, "%s: using CUDA backend\n", __func__);
@ -231,6 +245,7 @@ static ggml_backend_t create_backend() {
if (!backend) {
fprintf(stderr, "%s: using CPU backend\n", __func__);
backend = ggml_backend_cpu_init();
ggml_backend_cpu_set_n_threads(backend, params.n_threads);
}
return backend;
}
@ -275,7 +290,7 @@ int main(int argc, char * argv[]) {
fprintf(stderr, "\n");
}
ggml_backend_t backend = create_backend();
ggml_backend_t backend = create_backend(params);
if (!backend) {
fprintf(stderr, "Failed to create backend\n");
return 1;