Background Processing

Run code in the background and run other code at the same time

When you run code in MATLAB^®, you must wait for that code to finish running before you can run other code. The background pool enables you to run code in the background and run other code at the same time. For instance, you can create apps that remain responsive while performing calculations in the background.

Useparfevalwith the background pool to run a function in the background.parfevalimmediately returns aFutureobject that represents the function running in the background. To get results from theFuture, callfetchOutputs.

Functions

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Background Execution

`parfeval`	Run function in background
`backgroundPool`	Environment for running code in the background

Futures

`fetchOutputs`	Retrieve results from function running in the background
`afterEach`	Run function after each function finishes running in the background
`afterAll`	Run function after all functions finish running in the background
`取消`	Stop function running in the background
`取消All`	Stop all functions running in the background
`wait`	Wait for futures to complete
`fetchNext`	Retrieve next unread outputs from`Future`array
`Future`	Function scheduled to run

Data Queues

`send`	Send data to`DataQueue`or`PollableDataQueue`
`poll`	Retrieve data from`PollableDataQueue`
`afterEach`	Run function after data is received on`DataQueue`
`parallel.pool.DataQueue`	Send and automatically process data
`parallel.pool.PollableDataQueue`	Send and manually retrieve data

Topics

Get Started with Background Processing

Asynchronous Functions
Learn about how to run code in the background in MATLAB.
Run Functions in Background
UseparfevalandbackgroundPoolto run functions in the background.
Run MATLAB Functions in Thread-Based Environment
Check support for MATLAB functions that you want to run in the background.

Applications

Update Wait Bar While Functions Run in the Background
UseafterEachto update a wait bar while you run functions in the background.
Create Responsive Apps by Running Calculations in the Background
Improve the responsiveness of apps you create with MATLAB App Designer by using the background pool.