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Questions tagged [opencl]

43 questions
48
votes
1 answer

How can I test my GPU memory/RAM?

I run MemTest86 a lot at work on customer's machines, and it's great for troubleshooting memory issues. My question is, how can I test that a GPU is starting to go? I know of programs like 3DMark to push the graphics card to its limits, but what…
Canadian Luke
  • 24,640
19
votes
3 answers

How can I identify which processes are using the GPU?

Is there any way to find out which process is using the GPU for intensive calculations? (OpenCL, CUDA, etc? Primarily OpenCL?) e.g. if you run an OpenCL-powered video transcoder, you'll see nothing in your task manager that tells your GPU is burning…
Mahmoud Al-Qudsi
  • 3,993
13
votes
2 answers

Intel Ivy Bridge GPU OpenCL Not Working On Windows 8

I seem unable to initialize hardware-accelerated OpenGL on the GPU side of the Intel Ivy Bridge GPU (it's on a Core i7-3700K chipset, with the HD4000 graphics core). This is a new problem on Windows 8. I distinctly recall having access to…
allquixotic
  • 34,882
7
votes
1 answer

Does Intel OpenCL implementation use both CPU and GPU?

recently I wrote several versions of the same program (generating Julia Sets - fractals pictures at size 17200x17200 pixels) to check the performance of a few different solutions. I wrote versions: CPU (pthreads) - 252s/1 thread, 131s/2 threads,…
Marcin Włodarczyk
  • 71
7
votes
2 answers

Ryzen 2400: will the GPU part of the APU still be usable for compute if I have a discrete graphics card installed?

I want to use an AMD Ryzen 2400g, but I will be using OpenCL on three discrete AMD Radeon RX580s installed in it. Will the Vega compute units on the APU still be available if I install the Radeons? Or does their installation disable the integrated…
Thomas Browne
  • 533
6
votes
1 answer

Will OpenCL in Snow Leopard utilize the dormant GPU in Macbook Pros?

Macbook Pros currently running Leopard (10.5) utilize only one graphics card at a time (a decision disguised as a power profile change). Will OpenCL (introduced to the platform in 10.6) continue this trend by only allowing access to the active…
dulaneyb
  • 456
6
votes
1 answer

Imagemagick: disable OpenCL on Linux

Whenever I use imagemagick commands, I see errors and warnings like the following: $ convert -size 99x99 caption:"t" -border 1x1 t.png convert: clBuildProgram failed. (-11) @ warning/opencl.c/CompileOpenCLKernels/1097. convert: clCreateCommandQueue…
qubodup
  • 9,394
4
votes
1 answer

Execute OpenCL code on the CPU

I want to execute OpenCL code on a PC which doesn't have a graphics card, nor any other hardware component which is able to execute OpenCL. Is it possible compile my OpenCL code in a way that it can be executed on the CPU in Linux? Or is it possible…
Misch
  • 143
4
votes
2 answers

OpenCL support in graphics cards & on the Intel HD3000

What does it mean when a graphic card mentions it supports native OpenCL? And what happens when it doesn't? And how does intel 3000 cope with it? How are performances and processing cell numbers?
oneat
  • 3,401
3
votes
2 answers

Can an artifacting video card be useful in any way?

I recently acquired an MSI Radeon R9 280X video card that experiences visual glitches/flickering patches/artifacts in games and in 2D mode. Once I tried to open a video in fullscreen mode from Youtube and the screen just went entirely flickering…
Sevag
  • 143
3
votes
1 answer

ImageMagick for Windows not listing OpenCL as enabled

I'm trying to experiment with GPU-accelerated resize operations using ImageMagick. On my Windows machine, using convert -list configure lists only FEATURES OpenMP and not the OpenCL I expected since I have an NVidia CUDA GPU installed. Is there…
Luke Puplett
  • 1,691
3
votes
1 answer

How can I check the OpenCL version on Windows 7?

How can I check the OpenCL version on Microsoft Windows 7 (Windows 7 SP1 x64 Ultimate) with an Nvidia GeForce GTX 660M? I uunsuccessfully tried: Run -> dxdiag: doesn't show my GTX660M (I tried looking at all three "display" tabs) Start → Control…
Franck Dernoncourt
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  • 400
3
votes
1 answer

FFMPEG 4k HDR to 1080p SDR Hardware Tonemap Conversion ( OpenCL)

Having trawled the internet I have finally successfully compiled FFMPEG with OpenCL enabled and this has allowed me to attempt HDR -> SDR Conversion using my NVIDIA P400 ( Stream Limit Patch Applied). This has been in no small part due to the…
Alex
  • 79
3
votes
1 answer

Installing python deps with pip -r requirements.txt fails, but installing one by one succeeds. Why?

I have the following requirements.txt file: appdirs==1.4.3 decorator==4.3.0 numpy==1.15.4 pybind11==2.2.4 pyopencl==2018.2.2 pytools==2018.5.2 six==1.12.0 Running pip install -r requirements.txt fails with: Collecting appdirs==1.4.3 (from -r…
GLabs
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3
votes
0 answers

How can I enable WebCL in my browser?

I have experience with WebGL in javascript and with (py)OpenCL and both are great tools. Now I would like to put it together and do fast science/engineering demos in web browser. But I'm not sure if the technology is mature and supported by…
Prokop Hapala
  • 391
1
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