i.MX Processors中的主题 Re: OpenCL not working in Linux 3.14.28 version

OpenCL not working in Linux 3.14.28 version

mohamedsarjoond — Thu, 17 Mar 2016 11:13:05 GMT

Dear team,

A sample helloworld OpenCL application was tested in iMx6 platform for linux kernel 3.10.17 and in 3.14.28 versions

I have attached the application

In 3.10.17:

When this application was ran in 3.10.17 it ran successfully without any error.

Linux 3.10.17

The same application ran in 3.14.28 in order to see whether performance vice improvement is there. But it didn't ran. it showed segmentation fault at line no 58 (clGetPlatformIDs(1, &cpPlatform, NULL)

What could be causing this issue.

I saw in Community that 3.14.28 has GPU driver upgraded so through to give a try but it didn't went well

Any suggestions could be greatly helpful

we used poky 1.5.1 cross compiler for compilation

Thanks in advance,

Sarjoondeen.

Original Attachment has been moved to: helloworld.c.zip

Re: OpenCL not working in Linux 3.14.28 version

jimmychan — Tue, 22 Mar 2016 08:18:30 GMT

Have you try 3.14.52?

Re: OpenCL not working in Linux 3.14.28 version

hiromiyokoo — Tue, 11 Oct 2016 09:57:03 GMT

Similar problem, Linux version 3.14.61. Running Yocto included gpu-viv samples. For example:

/opt/viv_samples/cl11/UnitTest/clinfo

gives:

CL_PLATFORM_NAME: Vivante OpenCL Platform

CL_PLATFORM_PROFILE: EMBEDDED_PROFILE

CL_PLATFORM_VERSION: OpenCL 1.1

CL_PLATFORM_EXTENSIONS: cl_khr_icd

and then:

Error # -30 at line 227 in file main.cpp

(meaning something like "resource not available").

Same for other openCL examples.

What could be the problem?