Re: Ep Scheduling Free Download For Windows 10
Latrisha Adan
You may have noticed a mysterious new optional feature called Hardware Accelerated GPU Scheduling appear in the advanced graphics settings page with the Windows 10 May 2020 update. The purpose of this blog is to give some background on this new feature and how we are introducing it. It is intended for folks curious about Windows internals. Remaining on the cutting edge of hardware innovation has always been a critical aspect of our graphics platform. Hardware Accelerated GPU Scheduling enables more efficient GPU scheduling between applications. For most users, this transition will be transparent. It is one of those things that if we do our job right, you will never know the transition happened. As the graphics platform continues to evolve, this modernization will enable new scenarios in the future.
With the transition to a broad set of applications using the GPU for richer graphics and animations, the platform needed to better prioritize GPU work to ensure a responsive user experience. Thus, the WDDM GPU scheduler was born.
Over time we have significantly enhanced the GPU scheduler at the heart of WDDM, supporting additional features and scenarios with each new WDDM version. However, throughout its evolution, one aspect of the scheduler was unchanged. We have always had a high-priority thread running on the CPU that coordinates, prioritizes, and schedules the work submitted by various applications.
This approach to scheduling the GPU has some fundamental limitations in terms of submission overhead, as well as latency for the work to reach the GPU. These overheads have been mostly masked by the way applications have traditionally been written. For example, an application would typically do GPU work on frame N, and have the CPU run ahead and work on preparing GPU commands for frame N+1. This buffering of GPU commands into batches allows an application to submit just a few times per frame, minimizing the cost of scheduling and ensuring good CPU-GPU execution parallelism.
With Windows 10 May 2020 update, we are introducing a new GPU scheduler as a user opt-in, but off by default option. With the right hardware and drivers, Windows can now offload most of GPU scheduling to a dedicated GPU-based scheduling processor.
Windows continues to control prioritization and decide which applications have priority among contexts. We offload high frequency tasks to the GPU scheduling processor, handling quanta management and context switching of various GPU engines.
The new GPU scheduler is a significant and fundamental change to the driver model. Changing the scheduler is akin to rebuilding the foundation of a house while still living in it. To ensure a smooth transition we are introducing the new scheduler as an early-adopter, opt-in feature. During the transition we will gather large scale performance and reliability data as well as customer feedback.
We are adding UI to the Advanced Graphics Settings page to control enabling the new GPU scheduler. The settings page can be reached through Settings -> System -> Display -> Graphics Settings. If both your GPU and driver support the new GPU scheduler, the UI below will appear.
The new GPU scheduler will be supported on recent GPUs that have the necessary hardware, combined with a WDDMv2.7 driver that exposes this support to Windows. Please watch for announcements from our hardware vendor partners on specific GPU generations and driver versions this support will be enabled for.
Hardware accelerated GPU scheduling is a big change for drivers. While some GPUs have the necessary hardware, the associated driver exposing this support will only be released once it has gone through a significant amount of testing with our Insider population.
If you are an Insider and have chosen to install a build of Windows from our Fast or Slow distribution ring, you have been running a version of Windows with support for hardware accelerated GPU scheduling. You may have even been part of our experimentation!
As we get under-development drivers from our GPU manufacturer partners, we published these drivers to an Insider version of Windows Update (WU) where distribution is limited to the Insider population. In the Insider Fast Ring, we can run experiments where we silently toggle hardware accelerated GPU scheduling on, on behalf of some users such that we get a mix of users running with and without the new scheduler.
Through our experimentation platform and our telemetry system we can effectively run A/B experiments and compare how systems running with hardware accelerated GPU scheduling compare to systems running our old GPU scheduler. We monitor reliability telemetry such as kernel crashes (bluescreens), user mode crashes, GPU hangs, freeze/deadlocks as well as a limited set of performance metrics.
Once a driver completes support for hardware accelerated scheduling and accumulates enough execution time in our Insider Pool to demonstrate its reliability and performance, it is allowed to be promoted to the public version of Windows Update where it becomes available to everyone running the supported hardware.
Why not have hardware accelerated GPU scheduling on by default for all users given all the care taken before a driver can expose this support? Although we do a lot of validation through our Insider population, the number of system configurations and scenarios in the Insider population does not fully cover what can happen in our eco-system of more than a billion devices. Because hardware accelerated GPU scheduling is such a fundamental pillar of the graphics subsystem and used in absolutely everything that you do on your PC, we decided to introduce it initially as an opt-in to avoid any possible disruption. Users can opt-in through the UI and for new systems, OEM are encouraged to configure and validate their system with hardware accelerated GPU scheduling turned on from the factory.
The transition should be transparent, and users should not notice any significant changes. Although the new scheduler reduces the overhead of GPU scheduling, most applications have been designed to hide scheduling costs through buffering.
Would it be expected that a CUDA app fails when using this new feature? Like say something like a 3d DCC performing rendering tasks like Blender? A bug report came in on their bug tracker just today for this feature (user has latest drivers from nVidia that supports this option now).
By improving older products you end up with customers being more satisfied with their current performance which leads to less GPU upgrades.
Less purchases = lower profit margins
You are asking a company to make a decision that would financially hurt themselves. Do not ask for something when you have nothing to offer back.
I do have a question though in terms of improvement when using things such as OBS or other compositing/capturing software, will this aid in faster and more flexible FB Copy and alleviate some of the CPU overhead where there was some? Can it prevent certain stall scenarios now that the GPU is in control?
This new feature might be interresting for CUDA developers! My company currently ports our CUDA based software from Linux to Windows. I was looking for ways to reduce the WDDM overhead of CUDA kernel launches and found this article. Switching to Hardware-accelerated GPU scheduling did in our case considerably improve performance of our application (particularly when used with CUDA graphs).
Could you elaborate more on the improvement gained? Based on my account with TensorRT, there is a substantial performance regression regardless of HAGS being enabled or disabled. Apart from your testimonial, there is no other positive report on this (assuming your work revolves around CUDA for machine learning and not gaming), not even on
After installing this update I begun to get a strange error. Suddenly the mouse pointer froze, so the screen, then the screen goes black like if it was turned off, then the screen comes to life as nothing. My GPU is brand new and this error begun only AFTER may update and activate GPU ACCELERATION new feature. The strange thing is that this only happens while WORKING with Firefox, using Explorer to drop files, so on. Never when playing, never when watching movies full screen. I have now disabled this feature and so far the strange freezing has gone! Please fix this issue guys!
Scheduling Poll helps minimize the back-and-forth emails in scheduling by letting you send a poll to attendees inside and outside your organization, so they can vote on which meeting times work best for them.
Create a new email or select an email to reply to. List required attendees for the meeting in the To field and optional attendees in the Cc field. Select Scheduling poll in the Message tab.
Create a new meeting event or select an existing event to edit it. List required attendees in the Invite attendees field and click the optional button to add optional attendees. Select Scheduling poll in the Event tab.
Create a new email or select an email to reply to. List required attendees for the meeting in the To field and optional attendees in the Cc field. Select Scheduling Poll from the compose toolbar**.
**If the find time add-in was previously installed, scheduling poll will automatically appear on the toolbar. If not, then you must manually add it by customizing the toolbar when you're composing a new email message.
Launch the compose pane by either creating a new message or hitting reply/forward for an existing message. List required recipients in the To field and optional recipients in the Cc field. Then, on the Message tab, select New Scheduling Poll.
In Calendar, you can access Scheduling Poll by either launching the compose form to create a new meeting event or opening an existing event in the edit form. List required attendees in the Required field and optional attendees in the Optional field. Select New Scheduling Poll under the Meeting tab.
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