topic This an automatic process. We are marking this post as s... in i.MX Processors

opencl on imx6

dhananajysharma — Tue, 19 May 2015 08:35:08 GMT

I have recently purchased Quradcore imx6 wandboard

i have installed linux 3.10 on board

when i am trying to execute opencl program on board it is saying segment fault for every program of OpenCL.

my make file is

INCLUDE= /home/opencl_inc/include/

SRC= .

OPENCL_LIB = -lGAL -lOpenCL

all:

/home/compiler/gcc-linaro-arm-linux/bin/arm-linux-gnueabihf-gcc $(CFLAGS) -I. -I/$(INCLUDE) -L. -L/home/opencl_inc/lib opencl_test.c $(OPENCL_LIB) -o cl_sample

the program is getting compiled successfully and creates binary for it without any error.

also for other sample programm getting error related to clGetPlatformID clCreateContext, clEnqueNDRangeKernel ..

any help will be highly appreciable.

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

Re: opencl on imx6

dhananajysharma — Wed, 20 May 2015 11:59:14 GMT

After a research i found galcore module is required for processing OPENCL application.
i checked in /usr/dev/ galcore is there.
but still opencl is segment fault.

any suggestion...

i am using inux version 3.0.101 !

Re: opencl on imx6

andre_silva — Tue, 14 Jul 2015 18:48:50 GMT

anushreemoholkar, can you take a look on this issue ?

thanks,

Andre

Re: opencl on imx6

anushreemoholka — Thu, 16 Jul 2015 21:52:15 GMT

Yes, Let me simulate his condition on my board then I will comment on it.

Re: opencl on imx6

julienb — Fri, 17 Jul 2015 12:57:09 GMT

Hi,

I have a custom imx6 board designed from Nitrogen6x and I have a similar problem. All tests included in viv_samples/cl11/Unittest are not working. For example :

./functions_and_kernels

[ 1] HAL user version 4.6.9 build 6622 Jul 18 2013 15:05:32

[ 2] HAL kernel version 4.6.9 build 1210

TESTS STARTED...

Segmentation fault

drm and vivante module are loaded when checking with lsmod.

If I use another distribution like linaro-precise-alip-20121124-519.tar.gz, it's working.

There must be something missing but I don't know what ? Any idea ?

I read a lot of things about galcore module. It doesn' appear in lsmod but if I type ps in console, there are 3 galcore daemon process.

PS : I'm working with arm 3.0.35 Kernel and Buildroot 2014.05.

Re: opencl on imx6

anushreemoholka — Fri, 17 Jul 2015 18:40:23 GMT

Hi Dhananjay,

Can you send me your cl.h file?

Thanks,

Anushree

Re: opencl on imx6

anushreemoholka — Fri, 17 Jul 2015 19:20:29 GMT

Hi,

Can you run any other application that makes use of GPU like TIGER app?

Does your linux distribution already came with the gpu drivers or you get it from other BSP?

Can you send me your complete package so that I can reproduce issue on my side?

Thanks,

Anushree

Re: opencl on imx6

julienb — Mon, 20 Jul 2015 12:25:52 GMT

Hi,

I can't run any of GPU app (I only use a minimal buildroot without GUI), tiger creates a Window if I remember so it's not going to work.

I tried so add some missing things about in kernel compilation but I still have the same problem.

Here are my config files for both buildroot and kernel configuration. The other files are log errors I get when launching examples.

I'm open to any suggestions, if someone has an idea.

Thanks in advance,

Julien

Re: opencl on imx6

anushreemoholka — Mon, 20 Jul 2015 16:47:20 GMT

Hi Julien,

Did you get GPU libraries from another BSP?

If so you cannot run APP unless you use same kernel.

Let me know.

Thanks,

Anushree

Re: opencl on imx6

julienb — Mon, 20 Jul 2015 17:02:24 GMT

Hi,

No, GPU librairies comes from the generated builroot filesystem, as the gpu-vivante examples.

Julien

Re: opencl on imx6

anushreemoholka — Mon, 20 Jul 2015 19:36:06 GMT

Hi Julian,

Can you use FSL BSP and check if the any other application is running ?

Please let me know what are the errors if you use FSL BSP?

In this BSP GPU binaries are correctly packaged together with correct kernel?

This an automatic process. We are marking this post as s...

CommunityBot — Thu, 03 Sep 2020 17:29:48 GMT

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