TF_CAPI_EXPORT extern TFE_ContextDevicePlacementPolicy
TFE_ContextGetDevicePlacementPolicy(TFE_Context* ctx);

// A tensorflow.ServerDef specifies remote workers (in addition to the current
// workers name). Operations created in this context can then be executed on
// any of these remote workers by setting an appropriate device.
//
// If the following is set, all servers identified by the
// ServerDef must be up when the context is created.

## 复制 - 进程和内存

对于 FastAPI 应用程序，使用像 Uvicorn 这样的服务器程序，在**一个进程**中运行一次就可以同时为多个客户端提供服务。

但在许多情况下，您会希望同时运行多个工作进程。

### 多进程 - Workers

如果您的客户端数量多于单个进程可以处理的数量（例如，如果虚拟机不是太大），并且服务器的 CPU 中有 **多个核心**，那么您可以让 **多个进程** 运行 同时处理同一个应用程序，并在它们之间分发所有请求。

当您运行同一 API 程序的**多个进程**时，它们通常称为 **workers**。

### 工作进程和端口

还记得文档 [About HTTPS](https.md){.internal-link target=_blank} 中只有一个进程可以侦听服务器中的端口和 IP 地址的一种组合吗？

现在仍然是对的。

## Imagem Oficial do Docker com Gunicorn - Uvicorn

Há uma imagem oficial do Docker que inclui o Gunicorn executando com trabalhadores Uvicorn, conforme detalhado em um capítulo anterior: [Server Workers - Gunicorn com Uvicorn](server-workers.md){.internal-link target=_blank}.

Tenha certeza de ajustar o número de _workers_ etc.

// once (i.e., on the main function side) in running distributed functions.
// This test creates a cluster with two workers, create a variable on the
// second worker, and run a distributed function (VariableAddFunction) whose ops
// span the local and remote workers. If the graph optimization pass is executed
// on both the main function side and the component function side, an error will

			Optional:    true,
			Type:        "on|off",
		},
		config.HelpKV{
			Key:         target.AmqpDurable,
			Description: "persist queue across broker restarts when set to 'on', default is 'off'",
			Optional:    true,
			Type:        "on|off",
		},
		config.HelpKV{
			Key:         target.AmqpNoWait,

	}
	t.replicationPriority = cfg.ReplicationPriority
	t.replicationMaxWorkers = cfg.ReplicationMaxWorkers

	// N B api.transition_workers will be deprecated
	if globalTransitionState != nil {
		globalTransitionState.UpdateWorkers(cfg.TransitionWorkers)
	}
	t.transitionWorkers = cfg.TransitionWorkers

	t.staleUploadsExpiry = cfg.StaleUploadsExpiry

    <img src="https://github.com/tiangolo/fastapi/workflows/Test/badge.svg?event=push&branch=master" alt="Test">
</a>
<a href="https://coverage-badge.samuelcolvin.workers.dev/redirect/tiangolo/fastapi" target="_blank">
    <img src="https://coverage-badge.samuelcolvin.workers.dev/tiangolo/fastapi.svg" alt="Coverage">
</a>
<a href="https://pypi.org/project/fastapi" target="_blank">

            // iteration
            if (!hasSetRunning) {
              if (workerRunningState == RUNNING) {
                // Don't want to have two workers pulling from the queue.
                return;
              } else {
                // Increment the run counter to avoid the ABA problem of a submitter marking the

import com.github.javaparser.symbolsolver.resolution.typesolvers.JavaParserTypeSolver
import com.github.javaparser.symbolsolver.resolution.typesolvers.ReflectionTypeSolver
import gradlebuild.basics.util.KotlinSourceParser
import org.gradle.workers.WorkAction
import org.jetbrains.kotlin.psi.KtCallableDeclaration
import org.jetbrains.kotlin.psi.KtFile
import org.jetbrains.kotlin.psi.KtNamedDeclaration
import org.jetbrains.kotlin.psi.psiUtil.collectDescendantsOfType