mmdeploy/tools/onnx2pplnn.py

# Copyright (c) OpenMMLab. All rights reserved.
import argparse
import collections
import logging

from mmdeploy.apis.pplnn import from_onnx
from mmdeploy.utils import get_root_logger


def parse_args():
    parser = argparse.ArgumentParser(description='Convert ONNX to PPLNN.')
    parser.add_argument('onnx_path', help='ONNX model path')
    parser.add_argument(
        'output_prefix', help='output PPLNN algorithm prefix in json format')
    parser.add_argument(
        '--device',
        help='`the device of model during conversion',
        default='cuda:0')
    parser.add_argument(
        '--opt-shapes',
        help='`Optical shapes for PPLNN optimization. The shapes must be able'
        'to be evaluated by python, e,g., `[1, 3, 224, 224]`',
        default='[1, 3, 224, 224]')
    parser.add_argument(
        '--log-level',
        help='set log level',
        default='INFO',
        choices=list(logging._nameToLevel.keys()))
    args = parser.parse_args()

    return args


def main():
    args = parse_args()
    logger = get_root_logger(log_level=args.log_level)

    onnx_path = args.onnx_path
    output_prefix = args.output_prefix
    device = args.device

    input_shapes = eval(args.opt_shapes)
    assert isinstance(
        input_shapes, collections.Sequence), \
        'The opt-shape must be a sequence.'
    assert isinstance(input_shapes[0], int) or (isinstance(
        input_shapes[0], collections.Sequence)), \
        'The opt-shape must be a sequence of int or a sequence of sequence.'
    if isinstance(input_shapes[0], int):
        input_shapes = [input_shapes]

    logger.info(f'onnx2pplnn: \n\tonnx_path: {onnx_path} '
                f'\n\toutput_prefix: {output_prefix}'
                f'\n\topt_shapes: {input_shapes}')
    from_onnx(onnx_path, output_prefix, device, input_shapes)
    logger.info('onnx2pplnn success.')


if __name__ == '__main__':
    main()