My GPU is GeForce MX150, pascal architecture, CC. 6.1, CUDA 9.1, windows 10.
Although my GPU is pascal but cooperative groups doesn't work. I want to use it for inter-block synchronization.
I found my tcc mode doesn't active.
I also found that doesn't active in wddm in windows.
How can using cooperative groups?
How can activate tcc mode in windows?
Thanks for your reply.
You can't activate TCC on that GPU (it is not supported), and there is no way to use a cooperative launch under windows WDDM mode.
You'll either need to switch to linux or get another (pascal, volta, turing) GPU that can be placed in TCC mode on windows.
Also refer to your other question for instructions how to programmatically query for support of this feature.
This answer may also be of interest.
Related
I am kinda new to Android Studio & stuff. So today, I was installing the Android Studio with the SDK Manager. All was going smooth until an error came up which says:
Unable to install Intel HAXM
Your CPU does not support required features (VT-x or SVM).
Unfortunately, your computer does not support hardware accelerated virtualization.
Here are some of your options:
Use a physical device for testing
Develop on a Windows/OSX computer with an Intel processor that
supports VT-x and NX
Develop on a Linux computer that supports VT-x or SVM
Use an Android Virtual Device based on an ARM system image (This
is 10x slower than hardware accelerated virtualization)
I've attached a pic of my system specs. Can someone please throw some light on this issue?
Thanks
It is because you had not intialize virtual technology in your device.You Need to go in BOOT Option before starting WINDOWS OS and enable VT-x from there>
The option of enabling Virtual technology is putted in different option depends on device manufacturer
Edit: Android Studio emulator won't run on Windows with an AMD processor. The error message is kind of misleading, as it suggests the problem is with your CPU. But it is within the troubleshoot message: "Windows/OSX computer with an Intel processor". Basicallly, that means it is not going to work properly in your current setup. Either try installing Linux and running Android Studio on that (which might come with its own issues), using a physical device for testing or use the slow ARM images.
You are using an AMD processor. SVM is AMD technology and VT-x is Intel technology. So you won't be able to get VT-x to run, but SVM might be possible.
As another poster had suggested, virtualization may have been disabled in the BIOS. There may be an option to enable virtualization. It does however seem to happen that virtualization is activated in the BIOS and Android-Studio does not recognize that. I have not figured out how to fix that either.
You could use the emulator with an ARM image, which will be very slow. Alternatively, you could use another emulator that is not integrated into Android-Studio.
So, keep the stock driver, but add some other driver plus Windows register configuration that tells Windows how to do brightness at the hardware level?
Is that even possible within Windows? Or does it need to be built into the graphics driver itself?
(I'm specifically asking about Intel's "Legacy Backlight Brightness (LBB) I/O Register". Which works on a lot of Intel GPUs.)
For reference, I'm not really grokking all the jargon: http://msdn.microsoft.com/en-us/library/windows/hardware/ff569755(v=vs.85).aspx
There are so many headaches brought with Windows Display Driver Model (WDDM), the latest being the weird 2G memory allocation bug on GPU.
Is there a way to turn off WDDM all-together or I have to go with Linux/windows xp 64?
There really isn't a way to turn off WDDM mode for a GeForce GPU. If you have a Quadro or Tesla GPU, you can set the GPU to use TCC mode (use the nvidia-smi tool, with --help to figure out the command options to switch from wddm to tcc mode) but you will need another GPU in the system to host the display. You may also be interested in this question.
The statement about TCC support is a general one. Not all Quadro GPUs are supported. The final determinant of support for TCC (or not) on a particular GPU is the nvidia-smi tool. Nothing here should be construed as a guarantee of support for TCC on your particular GPU.
TCC mode works only on suppoted devices (Tesla, Quadro) .
In these devices you can choose between WDDM and TCC mode, Most of modern Tesla devices support only TCC mode, physically these devices don't have a graphic output.
Run from command line the nvidia smi executable, which usually reside in:
C:\program files\nvidia coporation\nvsmi
nvidia-smi -dm 0 -i 0
dm 0 for WDDM, dm 1 for TCC.
i flag set the device number, in case you have multiply devices in the system
I use GeForce cards for GPGPU computations with CUDA. A well known problem is that the WDDM introduces a huge overhead on the CPU side, leading to a non-negligible latency increase.
Also I need to run these programs in MS Windows environment and I would like to do it in modern systems like Windows 7 x64.
So, is there any way I can make Windows 7 work with XPDM? I think it was possible in Vista and maybe even in Windows 7 x86 (not sure tho).
TCC mode is only available for Tesla products (products I can not afford and neither I need the features they offer over GeForce). Is there any workaround for making a GeForce work in TCC mode?
Thanks in advance,
Javier
The NVIDIA GPU driver for win 7 must be in either WDDM mode or TCC mode. There are no other possibilities for that driver. And as you've stated, TCC mode is not available with GeForce branded GPUs, so you are limited to WDDM mode.
Iam using nvidia gt 440 gpu. It is used for both display and computational purpose which leads to less performance while computation. can i enable it only for computational purpose? if so how can i disable it from using display.
It depends -- are you working on Windows or Linux? Do you have any other display adapters (graphics cards) in the machine?
If you're on Linux, you can run without the X Windows Server (i.e., from a terminal) and SSH into the box (or attach your display to another adapter).
If you're on Windows, you need to have a second display adapter. As long as your display is connected to your GeForce 440 GT, there's no way to use it only for computational purposes. That also includes Remote Desktop, which won't work at all unless you have a Tesla card because of the way the WDDM (Windows Display Driver Model) was designed (it can't be accessed from within Session 0, which is where the RDP service runs).
I'm using Intel integrated graphics for display purposes and GPU for compute purpose on Linux.
You'll need to setup from bios to use the integrated graphics on mobo. This will leave your GPU free. It depends on your hardware available. =)
How much does it affects the performance? I did checked before, the display in windows did takes up some memory (less than 10mb).
Check that you have write permission on the /dev/nvidia* devices. The CUDA C Getting Started Guide for Linux contains a script that automatically sets the correct permissions at startup.