示例#1
0
if args.resume:
    print('raw load')
    model_raw.load_state_dict(torch.load(args.resume).state_dict())

torch.manual_seed(args.seed + args.rank)

val_dir = os.path.join(parser.dataset, '/val')
data_config = resolve_data_config(vars(args), model=model_raw, verbose=args.local_rank == 0)
num_aug_splits = 0
val_dataset = Dataset(val_dir, load_bytes=False, class_map='')


param_count = sum([m.numel() for m in model_raw.parameters()])
logging.info('Model created, param count: %d' % (param_count))

model_raw, test_time_pool = apply_test_time_pool(model_raw, data_config, args)

crop_pct = 1.0 if test_time_pool else data_config['crop_pct']
val_loader = create_loader(
    val_dataset,
    input_size=data_config['input_size'],
    batch_size=args.batch_size,
    is_training=False,
    use_prefetcher=args.prefetcher,
    interpolation=data_config['interpolation'],
    mean=data_config['mean'],
    std=data_config['std'],
    num_workers=args.workers,
    crop_pct=crop_pct,
    pin_memory=args.pin_mem,
    tf_preprocessing=args.tf_preprocessing)
def main():
    args = parser.parse_args()

    # create model
    model = create_model(
        args.model,
        num_classes=args.num_classes,
        in_chans=3,
        pretrained=args.pretrained,
        checkpoint_path=args.checkpoint)

    print('Model %s created, param count: %d' %
          (args.model, sum([m.numel() for m in model.parameters()])))

    config = resolve_data_config(model, args)
    model, test_time_pool = apply_test_time_pool(model, config, args)

    if args.num_gpu > 1:
        model = torch.nn.DataParallel(model, device_ids=list(range(args.num_gpu))).cuda()
    else:
        model = model.cuda()

    loader = create_loader(
        Dataset(args.data),
        input_size=config['input_size'],
        batch_size=args.batch_size,
        use_prefetcher=True,
        interpolation=config['interpolation'],
        mean=config['mean'],
        std=config['std'],
        num_workers=args.workers,
        crop_pct=1.0 if test_time_pool else config['crop_pct'])

    model.eval()

    k = min(args.topk, args.num_classes)
    batch_time = AverageMeter()
    end = time.time()
    topk_ids = []
    with torch.no_grad():
        for batch_idx, (input, _) in enumerate(loader):
            input = input.cuda()
            labels = model(input)
            topk = labels.topk(k)[1]
            topk_ids.append(topk.cpu().numpy())

            # measure elapsed time
            batch_time.update(time.time() - end)
            end = time.time()

            if batch_idx % args.print_freq == 0:
                print('Predict: [{0}/{1}]\t'
                      'Time {batch_time.val:.3f} ({batch_time.avg:.3f})'.format(
                    batch_idx, len(loader), batch_time=batch_time))

    topk_ids = np.concatenate(topk_ids, axis=0).squeeze()

    with open(os.path.join(args.output_dir, './topk_ids.csv'), 'w') as out_file:
        filenames = loader.dataset.filenames()
        for filename, label in zip(filenames, topk_ids):
            filename = os.path.basename(filename)
            out_file.write('{0},{1},{2},{3},{4},{5}\n'.format(
                filename, label[0], label[1], label[2], label[3], label[4]))
def main():
    args = parser.parse_args()

    # create model
    model = create_model(args.model,
                         num_classes=args.num_classes,
                         in_chans=3,
                         pretrained=args.pretrained,
                         checkpoint_path=args.checkpoint)

    print('Model %s created, param count: %d' %
          (args.model, sum([m.numel() for m in model.parameters()])))

    data_config = resolve_data_config(model, args)
    model, test_time_pool = apply_test_time_pool(model, data_config, args)

    if args.num_gpu > 1:
        model = torch.nn.DataParallel(model,
                                      device_ids=list(range(
                                          args.num_gpu))).cuda()
    else:
        model = model.cuda()

    criterion = nn.CrossEntropyLoss().cuda()

    loader = create_loader(
        Dataset(args.data),
        input_size=data_config['input_size'],
        batch_size=args.batch_size,
        use_prefetcher=True,
        interpolation=data_config['interpolation'],
        mean=data_config['mean'],
        std=data_config['std'],
        num_workers=args.workers,
        crop_pct=1.0 if test_time_pool else data_config['crop_pct'])

    batch_time = AverageMeter()
    losses = AverageMeter()
    top1 = AverageMeter()
    top5 = AverageMeter()

    model.eval()
    end = time.time()
    with torch.no_grad():
        for i, (input, target) in enumerate(loader):
            target = target.cuda()
            input = input.cuda()

            # compute output
            output = model(input)
            loss = criterion(output, target)

            # measure accuracy and record loss
            prec1, prec5 = accuracy(output.data, target, topk=(1, 5))
            losses.update(loss.item(), input.size(0))
            top1.update(prec1.item(), input.size(0))
            top5.update(prec5.item(), input.size(0))

            # measure elapsed time
            batch_time.update(time.time() - end)
            end = time.time()

            if i % args.print_freq == 0:
                print(
                    'Test: [{0}/{1}]\t'
                    'Time {batch_time.val:.3f} ({batch_time.avg:.3f}, {rate_avg:.3f}/s) \t'
                    'Loss {loss.val:.4f} ({loss.avg:.4f})\t'
                    'Prec@1 {top1.val:.3f} ({top1.avg:.3f})\t'
                    'Prec@5 {top5.val:.3f} ({top5.avg:.3f})'.format(
                        i,
                        len(loader),
                        batch_time=batch_time,
                        rate_avg=input.size(0) / batch_time.avg,
                        loss=losses,
                        top1=top1,
                        top5=top5))

    print(
        ' * Prec@1 {top1.avg:.3f} ({top1a:.3f}) Prec@5 {top5.avg:.3f} ({top5a:.3f})'
        .format(top1=top1,
                top1a=100 - top1.avg,
                top5=top5,
                top5a=100. - top5.avg))