When seed <= 0 - use the clock to generate one

main.cpp

@@ -170,7 +170,7 @@ int main(int argc, char ** argv) {
                 "expect poor results\n", __func__, params.n_ctx);
     }
 
-    if (params.seed < 0) {
+    if (params.seed <= 0) {
         params.seed = time(NULL);
     }
 

utils.cpp

@@ -101,7 +101,7 @@ void gpt_print_usage(int /*argc*/, char ** argv, const gpt_params & params) {
     fprintf(stderr, "                        in interactive mode, poll user input upon seeing PROMPT (can be\n");
     fprintf(stderr, "                        specified more than once for multiple prompts).\n");
     fprintf(stderr, "  --color               colorise output to distinguish prompt and user input from generations\n");
-    fprintf(stderr, "  -s SEED, --seed SEED  RNG seed (default: -1)\n");
+    fprintf(stderr, "  -s SEED, --seed SEED  RNG seed (default: -1, use random seed for <= 0)\n");
     fprintf(stderr, "  -t N, --threads N     number of threads to use during computation (default: %d)\n", params.n_threads);
     fprintf(stderr, "  -p PROMPT, --prompt PROMPT\n");
     fprintf(stderr, "                        prompt to start generation with (default: empty)\n");