[arch-general] run boinc with optirun but no GPU found

[Gabriel Hidasy]

On Fri, May 01, 2015 at 10:29:10PM +0800, Stephen Zhang wrote:
>Hi all,
>
>Today I installed boinc, and I'd like to run it with `optirun`.
>
>The first time I run `optirun bonic_client --dir /var/lib/boinc`, it showed
>me that `No usable GPUs found`. So, I installed `opencl-nvidia` package
>from the repo. After `opencl-nvidia` installed, I restart the boinc with
>optirun, it showed the same prompt. But after a suspend of my computer,
>it worked fine! the prompt became like this:
>,------
>01-May-2015 11:36:53 [---] CUDA: NVIDIA GPU 0: GeForce GT 620M (driver version unknown, CUDA version 7.0, compute capability 2.1, 1024MB, 1009MB available, 240 GFLOPS peak)
>01-May-2015 11:36:53 [---] OpenCL: NVIDIA GPU 0: GeForce GT 620M (driver version 349.16, device version OpenCL 1.1 CUDA, 1024MB, 1009MB available, 240 GFLOPS peak)
>`------
>And a project began to use GPU to caculate as well.
>
>However, after I reboot my computer, the boinc can't find GPUs any more!
>The prompt is always `No usable GPUs found`. I also tried to write a
>simple CUDA program[1] to test if my CUDA device was ok, and the result was
>the CUDA program worked fine, it printed 'Hello CUDA!' as expected.
>
>My GPU model is NVIDIA GeForce GT 620M as mentioned above. My laptop
>model is Acer E1-471G 32352G50Mnks.
>
>I also have bbswitch installed, and `cat /proc/acpi/bbswitch` shows:
>,------
>0000:01:00.0 ON
>`------
>
>And here is the output of `lsmod |grep nvidia`:
>,------
>nvidia_uvm             73728  0
>nvidia               8409088  1 nvidia_uvm
>drm                   282624  6 i915,drm_kms_helper,nvidia
>i2c_core               53248  8 drm,i915,i2c_i801,drm_kms_helper,i2c_algo_bit,nvidia,v4l2_common,videodev
>`------
>
>Anyone knows how I can run boinc with `optirun` correctly, or how I can
>run boinc with my GPU?
>Any reply will be appreciated!
>
>[1] https://cfp.vim-cn.com/cbSR/c
>

Hi, I don't know why but I have the same problem running boinc over optimus,
'optirun boinc' always prints "No usable GPU found"

The problem goes away running with the full path like "optirun /usr/bin/boinc"

-- 
Gabriel Hidasy
CsF - University of Pécs - Hungary
Ciência da Computação 2011 - Unicamp
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