如何让多个ECS任务在同一g4dn.xlarge EC2实例上并行运行

在配置为1块GPU、4核CPU、16GB内存的g4dn.xlarge型号EC2实例上，尝试运行多个ECS任务时遇到以下问题：

• 采用GPU共享配置实现多任务共用GPU，但启动多个任务时，第二个任务会一直处于配置中状态，直至第一个任务执行完成
• CloudWatch监控数据显示，每个任务运行期间CPU利用率均低于50%

const taskDefinition = new TaskDefinition(this, 'TaskDefinition', {
    compatibility: Compatibility.EC2
})

const container = taskDefinition.addContainer('Container', {
    image: ContainerImage.fromEcrRepository(<image>),
    entryPoint: ["python", "src/script.py"],
    workingDirectory: "/root/repo",
    startTimeout: Duration.minutes(5),
    stopTimeout: Duration.minutes(60),
    memoryReservationMiB: 8192,
    logging: LogDriver.awsLogs({
      logGroup: logGroup,
      streamPrefix: 'prefix',
    }),
})

const startUpScript = UserData.forLinux()
// 用于实现任务共享GPU的配置脚本
startUpScript.addCommands(
      `(grep -q ^OPTIONS=\\&quot;--default-runtime /etc/sysconfig/docker && echo '/etc/sysconfig/docker needs no changes') || (sed -i 's/^OPTIONS=&quot;/OPTIONS=&quot;--default-runtime nvidia /' /etc/sysconfig/docker && echo '/etc/sysconfig/docker updated to have nvidia runtime as default' && systemctl restart docker && echo 'Restarted docker')`
)

const launchTemplate = new LaunchTemplate(this, 'LaunchTemplate', {
    machineImage: EcsOptimizedImage.amazonLinux2(
        AmiHardwareType.GPU
    ),
    detailedMonitoring: false,
    instanceType: InstanceType.of(InstanceClass.G4DN, InstanceSize.XLARGE),
    userData: startUpScript,
    role: <launchTemplateRole>,
})

const autoScalingGroup = new AutoScalingGroup(this, 'AutoScalingGroup', {
    vpc: vpc,
    minCapacity: 0,
    maxCapacity: 1,
    desiredCapacity: 0,
    launchTemplate: launchTemplate,
})

const capacityProvider = new AsgCapacityProvider(this, 'AsgCapacityProvider', {
    autoScalingGroup: autoScalingGroup,
})
cluster.addAsgCapacityProvider(capacityProvider)

已为任务定义分配CPU和内存资源，但问题仍然存在。

内容的提问来源于stack exchange，提问作者Austin Ulfers