Error -1001 in clGetPlatformIDs Call !

Question

I am trying to start working with OpenCL. I have two NVidia graphics card, I installed "developer driver" as well as SDK from NVidia website. I compiled the demos but when I run

./oclDeviceQuery

I see:

OpenCL SW Info:

Error -1001 in clGetPlatformIDs Call !!!

How can I fix it? Does it mean my nvidia cards cannot be detected? I am running Ubuntu 10.10 and X server works properly with nvidia driver.

I am pretty sure the problem is not related to file permissions as it doesn't work with sudo either.

Its been 7 years since this question was first asked. I still have the same problem. Did you find a solution yet — Aseem, Mar 12 '18 at 00:17

score 9 · Answer 1 · answered Jan 05 '15 at 17:56

9

In my case I have solved it by installing nvidia-modprobe package available in ubuntu (utopic/multiverse). And the driver itself (v346) was installed from
https://launchpad.net/~mamarley/+archive/ubuntu/nvidia

Concretely, I have installed nvidia-opencl-icd-346, nvidia-libopencl1-346, nvidia-346-uvm, nvidia-346 and libcuda1-346. Not sure if they are all needed for OpenCL.

answered Jan 05 '15 at 17:56

EvgenijM86

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In my case nvidia-modprobe was the problem. Now it works even with the old driver (331). Thanks! – avtomaton Mar 09 '15 at 12:02
1

Made it work for me on Ubuntu 15.10, exact setup explained at: http://stackoverflow.com/a/33483311/895245 – Ciro Santilli OurBigBook.com Nov 05 '15 at 21:55

score 7 · Answer 2 · answered Feb 12 '11 at 00:18

7

This is a result of not installing the ICD portion of Nvidia's openCL runtime. The ICD profile will instruct your application of the different openCL implementations installed on the system as multiple implementations from different vendors can coexist. Whe your application does not find the ICD information it gives the Error -1001.

answered Feb 12 '11 at 00:18

joachimd

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Could you tell me more about what exactly is missing? I have /etc/OpenCL/vendors/nvidia.icd file which refers to libcuda.so library. The library itself exists and is on LD_LIBRARY_PATH. – tnorgd Feb 12 '11 at 09:38

score 3 · Answer 3 · edited May 23 '17 at 12:34

3

Run your program as root. In case of success: you have trouble with cl_khr_icd- extension to load the vendor driver. If you not running X11, you have to create device files manually or by (boot-)script: ERROR: clGetPlatformIDs -1001 when running OpenCL code (Linux)

edited May 23 '17 at 12:34

Community

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answered Sep 22 '15 at 09:29

Vlad

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score 2 · Answer 4 · edited Jul 25 '12 at 14:26

2

Same problem for me on a Linux system. Solution is to add the user to the video group:

# sudo usermod -aG video your-user-name

edited Jul 25 '12 at 14:26

Community

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answered May 19 '12 at 17:31

ther

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4

That doesn't help! At least not for me, and I have the same problem. – einpoklum Jul 25 '13 at 14:16

score 1 · Answer 5 · edited May 23 '17 at 11:54

1

Dont know if you ever solved this problem, but I had the same issue and solved it in this post: ERROR: clGetPlatformIDs -1001 when running OpenCL code (Linux)

Hope it helps!

edited May 23 '17 at 11:54

Community

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answered Dec 02 '13 at 19:33

Michael Aquilina

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score 1 · Answer 6 · answered Jan 23 '12 at 14:23

Since I just spend a couple of hours on this, I thought I would share: I got the error because I was connected to the machine per remote desktop (mstsc). On the machine itself everything worked fine.

I have been told that it should work with TeamViewer by the way.

score 0 · Answer 7 · answered Feb 09 '14 at 16:43

0

I have solved it in Ubuntu 13.10 saucy for intel opencl by created link:

sudo ln -s /opt/intel/opencl-1.2-3.2.1.16712/etc/intel64.icd /etc/OpenCL/vendors/nvidia.icd

answered Feb 09 '14 at 16:43

masuch

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score 0 · Answer 8 · answered Mar 24 '15 at 07:40

I just ran into this problem on ubuntu 14.04 and I could not find ANY working answers anywhere online including this thread (though this was the first to show up on google). What ended up working for me was to remove ALL previous nvidia software and then to reinstall it using the .run file provided on the nvidia website. Installing the components through apt-get seems to fail for some reason.

1) Download CUDA .run file: https://developer.nvidia.com/cuda-downloads

2) Purge all previous nvidia packages

sudo apt-get purge nvidia-*

3) Install all run file components (you will likely have to stop X or restart in recovery mode to run this)

sudo sh cuda_X.X.XX_linux.run

score 0 · Answer 9 · answered Sep 18 '22 at 19:38

This is because OpenCL has the same brain damaged one library per vendor setup that OpenGL has. A likely reason for the -1001 error is that you have compiled with a different library than the linker is trying to dynamically load.

So see if this is the problem run:

$ ldd oclDeviceQuery        
        ...
        libOpenCL.so.1 => important path here (0x00007fe2c17fb000)
        ...

Does the path point towards the NVidia-provided libOpenCL.so.1 file? If it doesn't, you should recompile the program with an -L parameter pointing towards the directory containing NVidia's libOpenCL.so.1. If you can't do that, you can override the linker's path like this:

$ LD_LIBRARY_PATH=/path/to/nvidias/lib ./oclDeviceQuery

score 0 · Answer 10 · answered Dec 26 '22 at 08:49

0

For me, I was missing the CUDA OpenCL library, Running sudo apt install cuda-opencl-dev-12-0 solved it.

answered Dec 26 '22 at 08:49

Richard Vodden

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score -2 · Answer 11 · answered Jul 14 '15 at 00:36

-2

This might be due to querying clGetPlatformIDs by multiple threads at the same time

answered Jul 14 '15 at 00:36

Sriram Murali

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score -2 · Answer 12 · answered Feb 28 '11 at 01:25

-2

You should get number of platforms, allocate the memory for platforms, again get this platforms and then create context from this platform. There is good example: http://developer.amd.com/support/KnowledgeBase/Lists/KnowledgeBase/DispForm.aspx?ID=71

answered Feb 28 '11 at 01:25

Kalinovsky Konstantin

43
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Error -1001 in clGetPlatformIDs Call !

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