examples/qualcomm/scripts/inception_v3.py

# Copyright (c) Qualcomm Innovation Center, Inc.
# All rights reserved
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.

import json
import os
import sys
from multiprocessing.connection import Client

import numpy as np

import torch
from executorch.backends.qualcomm.quantizer.quantizer import QuantDtype
from executorch.examples.models.inception_v3.model import InceptionV3Model
from executorch.examples.qualcomm.utils import (
    build_executorch_binary,
    make_output_dir,
    parse_skip_delegation_node,
    setup_common_args_and_variables,
    SimpleADB,
    topk_accuracy,
)


def get_dataset(dataset_path, data_size):
    from torchvision import datasets, transforms

    def get_data_loader():
        preprocess = transforms.Compose(
            [
                transforms.Resize(256),
                transforms.CenterCrop(224),
                transforms.ToTensor(),
                transforms.Normalize(
                    mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225]
                ),
            ]
        )
        imagenet_data = datasets.ImageFolder(dataset_path, transform=preprocess)
        return torch.utils.data.DataLoader(
            imagenet_data,
            shuffle=True,
        )

    # prepare input data
    inputs, targets, input_list = [], [], ""
    data_loader = get_data_loader()
    for index, data in enumerate(data_loader):
        if index >= data_size:
            break
        feature, target = data
        inputs.append((feature,))
        targets.append(target)
        input_list += f"input_{index}_0.raw\n"

    return inputs, targets, input_list


def main(args):
    skip_node_id_set, skip_node_op_set = parse_skip_delegation_node(args)

    # ensure the working directory exist.
    os.makedirs(args.artifact, exist_ok=True)

    if not args.compile_only and args.device is None:
        raise RuntimeError(
            "device serial is required if not compile only. "
            "Please specify a device serial by -s/--device argument."
        )

    data_num = 100
    if args.compile_only:
        inputs = [(torch.rand(1, 3, 224, 224),)]
    else:
        inputs, targets, input_list = get_dataset(
            dataset_path=f"{args.dataset}",
            data_size=data_num,
        )
    pte_filename = "ic3_qnn"
    instance = InceptionV3Model()
    build_executorch_binary(
        instance.get_eager_model().eval(),
        instance.get_example_inputs(),
        args.model,
        f"{args.artifact}/{pte_filename}",
        inputs,
        skip_node_id_set=skip_node_id_set,
        skip_node_op_set=skip_node_op_set,
        quant_dtype=QuantDtype.use_8a8w,
        shared_buffer=args.shared_buffer,
    )

    if args.compile_only:
        sys.exit(0)

    adb = SimpleADB(
        qnn_sdk=os.getenv("QNN_SDK_ROOT"),
        build_path=f"{args.build_folder}",
        pte_path=f"{args.artifact}/{pte_filename}.pte",
        workspace=f"/data/local/tmp/executorch/{pte_filename}",
        device_id=args.device,
        host_id=args.host,
        soc_model=args.model,
        shared_buffer=args.shared_buffer,
    )
    adb.push(inputs=inputs, input_list=input_list)
    adb.execute()

    # collect output data
    output_data_folder = f"{args.artifact}/outputs"
    make_output_dir(output_data_folder)

    adb.pull(output_path=args.artifact)

    # top-k analysis
    predictions = []
    for i in range(data_num):
        predictions.append(
            np.fromfile(
                os.path.join(output_data_folder, f"output_{i}_0.raw"), dtype=np.float32
            )
        )

    k_val = [1, 5]
    topk = [topk_accuracy(predictions, targets, k).item() for k in k_val]
    if args.ip and args.port != -1:
        with Client((args.ip, args.port)) as conn:
            conn.send(json.dumps({f"top_{k}": topk[i] for i, k in enumerate(k_val)}))
    else:
        for i, k in enumerate(k_val):
            print(f"top_{k}->{topk[i]}%")


if __name__ == "__main__":
    parser = setup_common_args_and_variables()

    parser.add_argument(
        "-d",
        "--dataset",
        help=(
            "path to the validation folder of ImageNet dataset. "
            "e.g. --dataset imagenet-mini/val "
            "for https://www.kaggle.com/datasets/ifigotin/imagenetmini-1000)"
        ),
        type=str,
        required=False,
    )

    parser.add_argument(
        "-a",
        "--artifact",
        help="path for storing generated artifacts by this example. "
        "Default ./inception_v3",
        default="./inception_v3",
        type=str,
    )

    args = parser.parse_args()
    try:
        main(args)
    except Exception as e:
        if args.ip and args.port != -1:
            with Client((args.ip, args.port)) as conn:
                conn.send(json.dumps({"Error": str(e)}))
        else:
            raise Exception(e)