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@Alex-Kushleyev

We recompiled with:

g++ -O2 clDeviceQuery.cpp -L /usr/lib -l OpenCL -o opencl-query

and now I have an OpenCL device. (fwiw my dmesg output looks very much like yours above.)

Thanks, J.

@Alex-Kushleyev said in GPU "hello world":

dmesg | grep gsl

@Alex-Kushleyev - Thanks.

I downloaded and compiled clDeviceQuery.cpp.
It gives the same result as "clinfo" and "hellocl.c" - no devices found:

$ ./opencl-query 
clDeviceQuery Starting...

 Error -1001 in clGetPlatformIDs Call!


System Info: 

 Local Time/Date =  13:38:42, 11/22/2024
 CPU Name: none
 # of CPU processors: 8
 Linux version 4.19.125 (oe-user@oe-host) (gcc version 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04), GNU ld (GNU Binutils for Ubuntu) 2.30) #1 SMP PREEMPT Fri May 17 23:29:23 UTC 2024


TEST FAILED !!!

Perhaps I need to load a kernel module to enable OpenCL? This is what's loaded:

$ lsmod                                                                                
Module                  Size  Used by
voxl_platform_mod      16384  0
voxl_gpio_mod          16384  0
voxl_fsync_mod         16384  0
machine_dlkm          159744  0
wcd938x_slave_dlkm     16384  0
wcd938x_dlkm          110592  1 machine_dlkm
wcd9xxx_dlkm           49152  1 wcd938x_dlkm
mbhc_dlkm              45056  1 wcd938x_dlkm
tx_macro_dlkm         106496  0
rx_macro_dlkm         102400  0
va_macro_dlkm          98304  0
wsa_macro_dlkm         69632  1 machine_dlkm
swr_ctrl_dlkm          57344  4 wsa_macro_dlkm,tx_macro_dlkm,rx_macro_dlkm,va_macro_dlkm
bolero_cdc_dlkm        57344  5 machine_dlkm,wsa_macro_dlkm,tx_macro_dlkm,rx_macro_dlkm,va_macro_dlkm
wsa881x_dlkm           45056  1 machine_dlkm
wcd_core_dlkm          32768  7 wsa881x_dlkm,machine_dlkm,wsa_macro_dlkm,tx_macro_dlkm,rx_macro_dlkm,va_macro_dlkm,wcd938x_dlkm
stub_dlkm              16384  0
hdmi_dlkm              24576  0
swr_dlkm               24576  4 wsa881x_dlkm,wcd938x_dlkm,swr_ctrl_dlkm,wcd938x_slave_dlkm
pinctrl_lpi_dlkm       20480  0
pinctrl_wcd_dlkm       16384  0
usf_dlkm               57344  0
native_dlkm           163840  0
platform_dlkm        2195456  1 native_dlkm
q6_dlkm               909312  9 bolero_cdc_dlkm,machine_dlkm,pinctrl_lpi_dlkm,usf_dlkm,va_macro_dlkm,swr_ctrl_dlkm,wcd9xxx_dlkm,native_dlkm,platform_dlkm
adsp_loader_dlkm       16384  0
apr_dlkm              229376  4 q6_dlkm,usf_dlkm,adsp_loader_dlkm,platform_dlkm
snd_event_dlkm         16384  5 bolero_cdc_dlkm,machine_dlkm,q6_dlkm,pinctrl_lpi_dlkm,apr_dlkm
q6_notifier_dlkm       16384  3 q6_dlkm,pinctrl_lpi_dlkm,apr_dlkm
q6_pdr_dlkm            16384  1 q6_notifier_dlkm
88XXau               2342912  0
8821cu               2465792  0
8188eu               1200128  0

@Alex-Kushleyev said in GPU "hello world":

QUALCOMM Adreno

Hi,

I'm trying to write a benchmark for GPU performance on a VOXL 2 (voxl-suite 1.3.5)

So far I've not been able to get a hardware-accelerated OpenGL context.

Is there a "hello world" example that draws something on the GPU and reads the resulting image?

This package

Headless on Ubuntu 18 Server - ModernGL 5.12.0 documentation

(moderngl.readthedocs.io)

looked promising, but when I run it I only get a software-rendering context.

Or a similar OpenCL tiny app? (I tried "hellocl.zip" mentioned in another thread, and it doesn't find any hardware, as does "clinfo").

Thanks,
James.