入門指南

安裝

我們建議使用 Miniconda 來管理您的 Python 版本和環境。

步驟 1：Python 環境

在您的機器上安裝 miniconda。

Windows：安裝完成後，從開始選單中啟動 Anaconda Prompt。

macOS/Linux：安裝完成後，啟動一個新的 shell 視窗程序。

為 Qualcomm® AI Hub 設置環境：

conda create python=3.10 -n qai_hub
conda activate qai_hub

警告

如果這些步驟中的任何一個因 SSL: CERTIFICATE_VERIFY_FAILED 錯誤而失敗，則表示您已安裝了 SSL 攔截和流量檢查工具。請向您的 IT 部門詢問如何為 Python pip 和 Python Requests 庫設置憑證的說明。他們應該會提供一個新的憑證文件。在創建環境之前，您還需要將此憑證添加到 Miniconda。這可以通過 conda config --set ssl_verify <path to certificate> 完成。

步驟 2：安裝 Python 客戶端

備註

Windows for ARM：由於缺乏對相關程式庫的支持，AI Hub 目前不支持使用原生 ARM Python。當 Python 生態系統趕上 ARM Windows 時，請安裝 x64 版本的 Python（通過 模擬 來實現）。我們推薦從 Python 下載頁面page 安裝 Python 3.10 "64-bit"。

pip3 install qai-hub

步驟 3：登錄

前往 Qualcomm® AI Hub 並使用您的 Qualcomm ID 登錄以查看您創建的作業信息。

登錄後，導航到 Account -> Settings -> API Token。這應該會提供一個 API Token，您可以用來配置您的客戶端。

步驟 4：配置 API 令牌

接下來，使用以下命令在您的終端中配置客戶端的 API token：

qai-hub configure --api_token INSERT_API_TOKEN

您可以通過獲取可用設備列表來檢查您的 API Token是否正確安裝。為此，您可以在 Python 終端中輸入以下內容:

import qai_hub as hub
hub.get_devices()

您現在已準備好在 Qualcomm AI Hub 上提交作業。如果遇到任何問題，請 聯繫我們。隨意嘗試以下示例，在所需設備上運行分析文件作業。

快速示例 (PyTorch)

設置好您的 Qualcomm® AI Hub 環境後，下一步是提交配置文件作業。首先，安裝此示例的相關程式庫：

pip3 install "qai-hub[torch]"

警告

如果任何代碼因 API 身份驗證錯誤而失敗，則表示您沒有安裝有效的 API Token。請參閱 安裝 了解如何設置。

提交對您選擇的設備類型上的 MobileNet v2 網絡的分析。您可以使用上面列表中的任何設備來指定不同於以下選項的設備。

移動設備

import numpy as np
import requests
import torch
from PIL import Image
from torchvision.models import mobilenet_v2

import qai_hub as hub

# Using pre-trained MobileNet
torch_model = mobilenet_v2(pretrained=True)
torch_model.eval()

# Step 1: Trace model
input_shape = (1, 3, 224, 224)
example_input = torch.rand(input_shape)
traced_torch_model = torch.jit.trace(torch_model, example_input)

# Step 2: Compile model
compile_job = hub.submit_compile_job(
    model=traced_torch_model,
    device=hub.Device("Samsung Galaxy S24 (Family)"),
    input_specs=dict(image=input_shape),
    options="--target_runtime tflite",
)
assert isinstance(compile_job, hub.CompileJob)

# Step 3: Profile on cloud-hosted device
target_model = compile_job.get_target_model()
assert isinstance(target_model, hub.Model)
profile_job = hub.submit_profile_job(
    model=target_model,
    device=hub.Device("Samsung Galaxy S24 (Family)"),
)
assert isinstance(profile_job, hub.ProfileJob)


# Step 4: Run inference on cloud-hosted device
sample_image_url = (
    "https://qaihub-public-assets.s3.us-west-2.amazonaws.com/apidoc/input_image1.jpg"
)
response = requests.get(sample_image_url, stream=True)
response.raw.decode_content = True
image = Image.open(response.raw).resize((224, 224))
input_array = np.expand_dims(
    np.transpose(np.array(image, dtype=np.float32) / 255.0, (2, 0, 1)), axis=0
)

# Run inference using the on-device model on the input image
inference_job = hub.submit_inference_job(
    model=target_model,
    device=hub.Device("Samsung Galaxy S24 (Family)"),
    inputs=dict(image=[input_array]),
)
assert isinstance(inference_job, hub.InferenceJob)

on_device_output = inference_job.download_output_data()
assert isinstance(on_device_output, dict)

# Step 5: Post-processing the on-device output
output_name = list(on_device_output.keys())[0]
out = on_device_output[output_name][0]
on_device_probabilities = np.exp(out) / np.sum(np.exp(out), axis=1)

# Read the class labels for imagenet
sample_classes = "https://qaihub-public-assets.s3.us-west-2.amazonaws.com/apidoc/imagenet_classes.txt"
response = requests.get(sample_classes, stream=True)
response.raw.decode_content = True
categories = [str(s.strip()) for s in response.raw]

# Print top five predictions for the on-device model
print("Top-5 On-Device predictions:")
top5_classes = np.argsort(on_device_probabilities[0], axis=0)[-5:]
for c in reversed(top5_classes):
    print(f"{c} {categories[c]:20s} {on_device_probabilities[0][c]:>6.1%}")

# Step 6: Download model
target_model = compile_job.get_target_model()
assert isinstance(target_model, hub.Model)
target_model.download("mobilenet_v2.tflite")

IOT

import numpy as np
import requests
import torch
from PIL import Image
from torchvision.models import mobilenet_v2

import qai_hub as hub

# Using pre-trained MobileNet
torch_model = mobilenet_v2(pretrained=True)
torch_model.eval()

# Step 1: Trace model
input_shape = (1, 3, 224, 224)
example_input = torch.rand(input_shape)
traced_torch_model = torch.jit.trace(torch_model, example_input)

# Step 2: Compile model
compile_job = hub.submit_compile_job(
    model=traced_torch_model,
    device=hub.Device("RB3 Gen 2 (Proxy)"),
    input_specs=dict(image=input_shape),
    options="--target_runtime tflite",
)
assert isinstance(compile_job, hub.CompileJob)


# Step 3: Profile on cloud-hosted device
target_model = compile_job.get_target_model()
assert isinstance(target_model, hub.Model)
profile_job = hub.submit_profile_job(
    model=target_model,
    device=hub.Device("RB3 Gen 2 (Proxy)"),
)
assert isinstance(profile_job, hub.ProfileJob)


# Step 4: Run inference on cloud-hosted device
sample_image_url = (
    "https://qaihub-public-assets.s3.us-west-2.amazonaws.com/apidoc/input_image1.jpg"
)
response = requests.get(sample_image_url, stream=True)
response.raw.decode_content = True
image = Image.open(response.raw).resize((224, 224))
input_array = np.expand_dims(
    np.transpose(np.array(image, dtype=np.float32) / 255.0, (2, 0, 1)), axis=0
)

# Run inference using the on-device model on the input image
inference_job = hub.submit_inference_job(
    model=target_model,
    device=hub.Device("RB3 Gen 2 (Proxy)"),
    inputs=dict(image=[input_array]),
)
assert isinstance(inference_job, hub.InferenceJob)

on_device_output = inference_job.download_output_data()
assert isinstance(on_device_output, dict)

# Step 5: Post-processing the on-device output
output_name = list(on_device_output.keys())[0]
out = on_device_output[output_name][0]
on_device_probabilities = np.exp(out) / np.sum(np.exp(out), axis=1)

# Read the class labels for imagenet
sample_classes = "https://qaihub-public-assets.s3.us-west-2.amazonaws.com/apidoc/imagenet_classes.txt"
response = requests.get(sample_classes, stream=True)
response.raw.decode_content = True
categories = [str(s.strip()) for s in response.raw]

# Print top five predictions for the on-device model
print("Top-5 On-Device predictions:")
top5_classes = np.argsort(on_device_probabilities[0], axis=0)[-5:]
for c in reversed(top5_classes):
    print(f"{c} {categories[c]:20s} {on_device_probabilities[0][c]:>6.1%}")

# Step 6: Download model
target_model = compile_job.get_target_model()
assert isinstance(target_model, hub.Model)
target_model.download("mobilenet_v2.tflite")

計算設備

import numpy as np
import requests
import torch
from PIL import Image
from torchvision.models import mobilenet_v2

import qai_hub as hub

# Using pre-trained MobileNet
torch_model = mobilenet_v2(pretrained=True)
torch_model.eval()

# Step 1: Trace model
input_shape = (1, 3, 224, 224)
example_input = torch.rand(input_shape)
traced_torch_model = torch.jit.trace(torch_model, example_input)

# Step 2: Compile model
compile_job = hub.submit_compile_job(
    model=traced_torch_model,
    device=hub.Device("Snapdragon X Elite CRD"),
    input_specs=dict(image=input_shape),
    options="--target_runtime onnx",
)
assert isinstance(compile_job, hub.CompileJob)

# Step 3: Profile on cloud-hosted device
target_model = compile_job.get_target_model()
assert isinstance(target_model, hub.Model)
profile_job = hub.submit_profile_job(
    model=target_model,
    device=hub.Device("Snapdragon X Elite CRD"),
)
assert isinstance(profile_job, hub.ProfileJob)


# Step 4: Run inference on cloud-hosted device
sample_image_url = (
    "https://qaihub-public-assets.s3.us-west-2.amazonaws.com/apidoc/input_image1.jpg"
)
response = requests.get(sample_image_url, stream=True)
response.raw.decode_content = True
image = Image.open(response.raw).resize((224, 224))
input_array = np.expand_dims(
    np.transpose(np.array(image, dtype=np.float32) / 255.0, (2, 0, 1)), axis=0
)

# Run inference using the on-device model on the input image
inference_job = hub.submit_inference_job(
    model=target_model,
    device=hub.Device("Snapdragon X Elite CRD"),
    inputs=dict(image=[input_array]),
)
assert isinstance(inference_job, hub.InferenceJob)

on_device_output = inference_job.download_output_data()
assert isinstance(on_device_output, dict)

# Step 5: Post-processing the on-device output
output_name = list(on_device_output.keys())[0]
out = on_device_output[output_name][0]
on_device_probabilities = np.exp(out) / np.sum(np.exp(out), axis=1)

# Read the class labels for imagenet
sample_classes = "https://qaihub-public-assets.s3.us-west-2.amazonaws.com/apidoc/imagenet_classes.txt"
response = requests.get(sample_classes, stream=True)
response.raw.decode_content = True
categories = [str(s.strip()) for s in response.raw]

# Print top five predictions for the on-device model
print("Top-5 On-Device predictions:")
top5_classes = np.argsort(on_device_probabilities[0], axis=0)[-5:]
for c in reversed(top5_classes):
    print(f"{c} {categories[c]:20s} {on_device_probabilities[0][c]:>6.1%}")

# Step 6: Download model
target_model = compile_job.get_target_model()
assert isinstance(target_model, hub.Model)
target_model.download("mobilenet_v2.onnx")

汽車設備

import numpy as np
import requests
import torch
from PIL import Image
from torchvision.models import mobilenet_v2

import qai_hub as hub

# Using pre-trained MobileNet
torch_model = mobilenet_v2(pretrained=True)
torch_model.eval()

# Step 1: Trace model
input_shape = (1, 3, 224, 224)
example_input = torch.rand(input_shape)
traced_torch_model = torch.jit.trace(torch_model, example_input)

# Step 2: Compile model
compile_job = hub.submit_compile_job(
    model=traced_torch_model,
    device=hub.Device("SA8650 (Proxy)"),
    input_specs=dict(image=input_shape),
    options="--target_runtime qnn_lib_aarch64_android",
)
assert isinstance(compile_job, hub.CompileJob)

# Step 3: Profile on cloud-hosted device
target_model = compile_job.get_target_model()
assert isinstance(target_model, hub.Model)
profile_job = hub.submit_profile_job(
    model=target_model,
    device=hub.Device("SA8650 (Proxy)"),
)
assert isinstance(profile_job, hub.ProfileJob)

# Step 4: Run inference on cloud-hosted device
sample_image_url = (
    "https://qaihub-public-assets.s3.us-west-2.amazonaws.com/apidoc/input_image1.jpg"
)
response = requests.get(sample_image_url, stream=True)
response.raw.decode_content = True
image = Image.open(response.raw).resize((224, 224))
input_array = np.expand_dims(
    np.transpose(np.array(image, dtype=np.float32) / 255.0, (2, 0, 1)), axis=0
)

# Run inference using the on-device model on the input image
inference_job = hub.submit_inference_job(
    model=target_model,
    device=hub.Device("SA8650 (Proxy)"),
    inputs=dict(image=[input_array]),
)
assert isinstance(inference_job, hub.InferenceJob)

on_device_output = inference_job.download_output_data()
assert isinstance(on_device_output, dict)

# Step 5: Post-processing the on-device output
output_name = list(on_device_output.keys())[0]
out = on_device_output[output_name][0]
on_device_probabilities = np.exp(out) / np.sum(np.exp(out), axis=1)

# Read the class labels for imagenet
sample_classes = "https://qaihub-public-assets.s3.us-west-2.amazonaws.com/apidoc/imagenet_classes.txt"
response = requests.get(sample_classes, stream=True)
response.raw.decode_content = True
categories = [str(s.strip()) for s in response.raw]

# Print top five predictions for the on-device model
print("Top-5 On-Device predictions:")
top5_classes = np.argsort(on_device_probabilities[0], axis=0)[-5:]
for c in reversed(top5_classes):
    print(f"{c} {categories[c]:20s} {on_device_probabilities[0][c]:>6.1%}")

# Step 6: Download model
target_model = compile_job.get_target_model()
assert isinstance(target_model, hub.Model)
target_model.download("mobilenet_v2.so")

這將提交一個編譯作業，然後提交一個分析文件作業，印出兩個作業的 URL。最後，代碼在一些示例數據上執行推理作業。在 /jobs/ 查看您所有的作業。

您可以透過程式查詢作業的狀態：

status = profile_job.get_status()
print(status)

您可以使用以下代碼訪問作業結果。主要有三個部分

• 分析文件: JSON 格式的分析文件結果。

• 目標模型: 已優化的模型，準備部署。

• 結果: 包含作業所有工件（包括日誌）的文件夾。

請注意，這些是同步API ，調用後會等待作業完成：

• 下載分析結果（JSON 格式，同步呼叫）

profile = profile_job.download_profile()
print(profile)

• 下載最佳化模型（同步呼叫）

compile_job.model.download("model_filename")

• 將結果下載至目前目錄（同步呼叫）

profile_job.download_results(".")

欲了解更多信息，請繼續參閱 分析模型 或參考 API documentation。