topic Re: Re:clGetPlatformIDs returns error (no OpenCL platform) in Graphics

clGetPlatformIDs returns error (no OpenCL platform)

Mahmoodn — Tue, 03 May 2022 12:44:08 GMT

I have an Intel HD 530 with a Core-i5 6600 CPU as you can see below and according to Intel document page, this model supports OpenCL.

$ lscpu | grep "Model name" Model name: Intel(R) Core(TM) i5-6600 CPU @ 3.30GHz $ sudo lshw -numeric -C display *-display description: VGA compatible controller product: HD Graphics 530 [8086:1912] vendor: Intel Corporation [8086] physical id: 2

Trying to run an OpenCL code, there is a section that first discovers available platforms and that is

// Discover and populate the platforms status = clGetPlatformIDs(0, NULL, &numPlatforms); cl_errChk(status, "Getting platform IDs", true); if (numPlatforms > 0) { // Get all the platforms platforms = (cl_platform_id*)alloc(numPlatforms * sizeof(cl_platform_id)); status = clGetPlatformIDs(numPlatforms, platforms, NULL); cl_errChk(status, "Getting platform IDs", true); } else { // If no platforms are available, we shouldn't continue printf("No OpenCL platforms found\n"); exit(-1); }

As the program starts, it goes to the "else" part that shows the message that no OpenCL platform found.

How can I fix the problem?

Re:clGetPlatformIDs returns error (no OpenCL platform)

DeividA_Intel — Wed, 04 May 2022 14:05:45 GMT

Hello Mahmoodn,

Thank you for posting on the Intel® communities. I am sorry to know that you are having issues with your Intel® HD Graphics 530.

In order to better assist you, please provide the following:

1. Can you provide more details about the issue?

2. Are you working on a project or developing something?

3. What is the tool that you are using?

Regards,

Deivid A.

Intel Customer Support Technician

Re: Re:clGetPlatformIDs returns error (no OpenCL platform)

Mahmoodn — Thu, 05 May 2022 09:21:35 GMT

Hi Deivid,

The issue is that I want to run an OpenCL code on Intel HD 530 which is supposed to support OpenCL. But in reality when I run the OpenCL function clGetPlatformIDs it returns no compatible device. That is weird.

I am working on some educational exercises dealing with OpenCL performance and benchmarking on different devices.

I am using Ubuntu 20.04 with the following OpenCL related packages:

$ dpkg -l | grep opencl ii ocl-icd-libopencl1:amd64 2.2.11-1ubuntu1 amd64 Generic OpenCL ICD Loader ii ocl-icd-opencl-dev:amd64 2.2.11-1ubuntu1 amd64 OpenCL development files ii opencl-c-headers 2.2~2019.08.06-g0d5f18c-1 all OpenCL (Open Computing Language) C header files ii opencl-clhpp-headers 2.1.0~~git51-gc5063c3-1 all C++ headers for OpenCL development ii opencl-headers 2.2~2019.08.06-g0d5f18c-1 all OpenCL (Open Computing Language) header files

I can share the code but since the code has multiple files, I guess it will make things complicated. As I said, the question is why clGetPlatformIDs returns no compatible device on 530.

Any thoughts on that?

Re:clGetPlatformIDs returns error (no OpenCL platform)

DeividA_Intel — Thu, 05 May 2022 15:28:15 GMT

Hello Mahmoodn,

Thank you for the information provided

I will proceed to check the situation internally to confirm any steps or possible solutions and post back soon with more details.

Best regards,

Deivid A.

Intel Customer Support Technician

Re:clGetPlatformIDs returns error (no OpenCL platform)

DeividA_Intel — Thu, 12 May 2022 18:20:49 GMT

Hello Mahmoodn.

Based on your issue and the investigation performed, I recommend you to check with the Linus distributor forums to verify with them if the latest driver is installed.

Also, I recommend you to check with the application/game developer to verify the compatibility with the operating system and the troubleshooting steps needed since OpenGL*, OpenCL*, and Vulkan* drivers must be installed separately, and are only distributed with the game or application that requires it.

Please keep in mind that this thread will no longer be monitored by Intel.

Regards,

Deivid A.

Intel Customer Support Technician