# How to parallelize some actions in UE4? **URL:** \ **Category:** XR Development\ **Tags:** framerate, unreal-engine, question\ **Created:** [November 21, 2018, 9:05am UTC](https://forums.unrealengine.com/t/how-to-parallelize-some-actions-in-ue4/438028 "2018-11-21T09:05:41Z")\ **Posts on this page:** 1\ **Showing post:** 6
**Author:** ![anonymous\_user\_a5e67abc](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a5e67abc](https://forums.unrealengine.com/u/anonymous_user_a5e67abc)\ **Post date:** [November 29, 2018, 3:45pm UTC](https://forums.unrealengine.com/t/how-to-parallelize-some-actions-in-ue4/438028/6 "2018-11-29T15:45:24Z")
The MultiThreqding and sync link ressembles more what I need since it allows thread safe data manipulation and return to the main thread. > **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)** > > After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — https://unrealcommunity.wiki/! You will be able to find content from... Thx @Weibye for that 😉 It is still a bit unclear to me how to notify the main thread once the FRunnable is done computing but I have open a new post for this question here : > **[How to notify the main game thread when the FRunnable is done?](https://forums.unrealengine.com/questions/853110/how-to-notify-the-main-game-thread-when-the-frunna.html)** > > Hi all ! I am making progress with multi-threading in ue4 but I am still a bit puzzled. How can I notify the main thread when my computation in the FRunnable is done so that I can they query the data from the thread (with a thread safe method ofc)... --- _[View the full topic](https://forums.unrealengine.com/t/how-to-parallelize-some-actions-in-ue4/438028)._