mirror of https://github.com/pjreddie/darknet.git
84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
#include "darknet.h"
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#include <sys/time.h>
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void train_swag(char *cfgfile, char *weightfile)
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{
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char *train_images = "data/voc.0712.trainval";
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char *backup_directory = "/home/pjreddie/backup/";
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srand(time(0));
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char *base = basecfg(cfgfile);
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printf("%s\n", base);
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float avg_loss = -1;
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network net = parse_network_cfg(cfgfile);
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if(weightfile){
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load_weights(&net, weightfile);
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}
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printf("Learning Rate: %g, Momentum: %g, Decay: %g\n", net.learning_rate, net.momentum, net.decay);
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int imgs = net.batch*net.subdivisions;
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int i = *net.seen/imgs;
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data train, buffer;
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layer l = net.layers[net.n - 1];
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int side = l.side;
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int classes = l.classes;
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float jitter = l.jitter;
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list *plist = get_paths(train_images);
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//int N = plist->size;
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char **paths = (char **)list_to_array(plist);
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load_args args = {0};
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args.w = net.w;
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args.h = net.h;
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args.paths = paths;
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args.n = imgs;
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args.m = plist->size;
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args.classes = classes;
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args.jitter = jitter;
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args.num_boxes = side;
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args.d = &buffer;
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args.type = REGION_DATA;
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pthread_t load_thread = load_data_in_thread(args);
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clock_t time;
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//while(i*imgs < N*120){
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while(get_current_batch(net) < net.max_batches){
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i += 1;
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time=clock();
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pthread_join(load_thread, 0);
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train = buffer;
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load_thread = load_data_in_thread(args);
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printf("Loaded: %lf seconds\n", sec(clock()-time));
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time=clock();
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float loss = train_network(net, train);
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if (avg_loss < 0) avg_loss = loss;
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avg_loss = avg_loss*.9 + loss*.1;
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printf("%d: %f, %f avg, %f rate, %lf seconds, %d images\n", i, loss, avg_loss, get_current_rate(net), sec(clock()-time), i*imgs);
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if(i%1000==0 || i == 600){
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char buff[256];
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sprintf(buff, "%s/%s_%d.weights", backup_directory, base, i);
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save_weights(net, buff);
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}
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free_data(train);
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}
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char buff[256];
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sprintf(buff, "%s/%s_final.weights", backup_directory, base);
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save_weights(net, buff);
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}
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void run_swag(int argc, char **argv)
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{
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if(argc < 4){
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fprintf(stderr, "usage: %s %s [train/test/valid] [cfg] [weights (optional)]\n", argv[0], argv[1]);
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return;
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}
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char *cfg = argv[3];
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char *weights = (argc > 4) ? argv[4] : 0;
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if(0==strcmp(argv[2], "train")) train_swag(cfg, weights);
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}
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