打开 Amazon Braket Boto3 客户端

要将 Boto3 与 B Amazon raket 配合使用，必须导入 Boto3，然后定义用于连接到 Braket 的客户端。Amazon API在以下示例中，命名为 Boto3 客户端。braket

注意

为了向后兼容的旧版本 BraketSchemas，调用中省略了 OpenQasm 信息。GetDevice API要获取此信息，用户代理需要提供最新版本的 BraketSchemas （1.8.0 或更高版本）。Braket SDK 会自动为您报告此问题。如果您在使用 Braket SDK 时未在GetDevice响应中看到 OpenQasm 结果，则可能需要设置AWS_EXECUTION_ENV环境变量来配置用户代理。有关如何为、Boto3 和 Go、Java 和/SDK 执行此操作 AWS CLI，请参阅未返回 OpenQasm 结果错误主题中提供的代码示例。GetDevice JavaScript TypeScript

import boto3
import botocore

braket = boto3.client("braket", config=botocore.client.Config(user_agent_extra="BraketSchemas/1.8.0"))

现在您已经建立了braket客户端，可以从 Amazon Braket 服务中提出请求和处理响应。您可以在 API 参考中获取有关请求和响应数据的更多详细信息。

搜索设备

• search_devices(**kwargs)

使用指定的过滤器搜索设备。

# Pass search filters and optional parameters when sending the
#  request and capture the response
response = braket.search_devices(filters=[{
    'name': 'deviceArn',
    'values': ['arn:aws:braket:::device/quantum-simulator/amazon/sv1']
}], maxResults=10)

print(f"Found {len(response['devices'])} devices")

for i in range(len(response['devices'])):
    device = response['devices'][i]
    print(device['deviceArn'])

取回设备

• get_device(deviceArn)

检索 Amazon Braket 中可用的设备。

# Pass the device ARN when sending the request and capture the repsonse
response = braket.get_device(deviceArn='arn:aws:braket:::device/quantum-simulator/amazon/sv1')

print(f"Device {response['deviceName']} is {response['deviceStatus']}")

创建量子任务

• create_quantum_task(**kwargs)

创建量子任务。

# Create parameters to pass into create_quantum_task()
kwargs = {
    # Create a Bell pair
    'action': '{"braketSchemaHeader": {"name": "braket.ir.jaqcd.program", "version": "1"}, "results": [], "basis_rotation_instructions": [], "instructions": [{"type": "h", "target": 0}, {"type": "cnot", "control": 0, "target": 1}]}',
    # Specify the SV1 Device ARN
    'deviceArn': 'arn:aws:braket:::device/quantum-simulator/amazon/sv1',
    # Specify 2 qubits for the Bell pair
    'deviceParameters': '{"braketSchemaHeader": {"name": "braket.device_schema.simulators.gate_model_simulator_device_parameters", "version": "1"}, "paradigmParameters": {"braketSchemaHeader": {"name": "braket.device_schema.gate_model_parameters", "version": "1"}, "qubitCount": 2}}',
    # Specify where results should be placed when the quantum task completes.
    #  You must ensure the S3 Bucket exists before calling create_quantum_task()
    'outputS3Bucket': 'amazon-braket-examples',
    'outputS3KeyPrefix': 'boto-examples',
    # Specify number of shots for the quantum task
    'shots': 100
}

# Send the request and capture the response
response = braket.create_quantum_task(**kwargs)

print(f"Quantum task {response['quantumTaskArn']} created")

检索量子任务

• get_quantum_task(quantumTaskArn)

检索指定的量子任务。

# Pass the quantum task ARN when sending the request and capture the response
response = braket.get_quantum_task(quantumTaskArn='arn:aws:braket:us-west-1:123456789012:quantum-task/ce78c429-cef5-45f2-88da-123456789012')

print(response['status'])

搜索量子任务

• search_quantum_tasks(**kwargs)

搜索与指定过滤值匹配的量子任务。

# Pass search filters and optional parameters when sending the
#  request and capture the response
response = braket.search_quantum_tasks(filters=[{
    'name': 'deviceArn',
    'operator': 'EQUAL',
    'values': ['arn:aws:braket:::device/quantum-simulator/amazon/sv1']
}], maxResults=25)

print(f"Found {len(response['quantumTasks'])} quantum tasks")

for n in range(len(response['quantumTasks'])):
    task = response['quantumTasks'][n]
    print(f"Quantum task {task['quantumTaskArn']} for {task['deviceArn']} is {task['status']}")

取消量子任务

• cancel_quantum_task(quantumTaskArn)

取消指定的量子任务。

# Pass the quantum task ARN when sending the request and capture the response
response = braket.cancel_quantum_task(quantumTaskArn='arn:aws:braket:us-west-1:123456789012:quantum-task/ce78c429-cef5-45f2-88da-123456789012')

print(f"Quantum task {response['quantumTaskArn']} is {response['cancellationStatus']}")