Upgraded Ubuntu 16.04 to 18.04 today and boinc could not find the GPU,
the gpu tasks said 'GPU Missing'.

The new driver for nvidia is 390.
I found a comment on a boinc thread suggesting:

sudo apt-get install ocl-icd-libopencl1
(yes, it's current according to synaptic)
sudo service boinc-client restart

And now the NVIDIA 750 is known to boinc and Seti is using it.
This problem was reported to ubuntu folks before 18.04 released,but...
the problem is still present in the distribution making the above
install necessary.

Been happening a lot based on similar forum threads. The OpenCL components are not getting installed.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Yup the default NV package doesn't contain openCL. I've been adding the NV PPA and sometimes have to switch back and forth between 390 and 396 to get openCL installed from the NV propitiatory package.

The name and description of the ocl-icd* package
is essentially no help whatever.
A complete disconnect from the problem report
from boinc. AFAICT.

Yet some folks figured it out. Thank you to
those folks.

Upgraded Ubuntu 16.04 to 18.04 today and boinc could not find the GPU,
the gpu tasks said 'GPU Missing'.

The new driver for nvidia is 390.
I found a comment on a boinc thread suggesting:

sudo apt-get install ocl-icd-libopencl1
(yes, it's current according to synaptic)
sudo service boinc-client restart

And now the NVIDIA 750 is known to boinc and Seti is using it.
This problem was reported to ubuntu folks before 18.04 released,but...
the problem is still present in the distribution making the above
install necessary.

The second command "sudo service boinc-client restart" says "not found". I am running the CUDA90 (special sauce) any ideas?

Thanks,
Tom

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A proud member of the OFA (Old Farts Association).

Upgraded Ubuntu 16.04 to 18.04 today and boinc could not find the GPU,
the gpu tasks said 'GPU Missing'.

The new driver for nvidia is 390.
I found a comment on a boinc thread suggesting:

sudo apt-get install ocl-icd-libopencl1
(yes, it's current according to synaptic)
sudo service boinc-client restart

And now the NVIDIA 750 is known to boinc and Seti is using it.
This problem was reported to ubuntu folks before 18.04 released,but...
the problem is still present in the distribution making the above
install necessary.

The second command "sudo service boinc-client restart" says "not found". I am running the CUDA90 (special sauce) any ideas?

Thanks,
Tom

Those commands are for the repository version of BOINC. You are running the TBar /Home versions of BOINC. Just make sure the execute permissions are set on both boinc and boincmgr in the BOINC folder on your Desktop and the dependencies are satisfied.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

I just made a new cruncher and simply installed the TBar 7.4.44 BOINC. Installed the CUDA90 application and installed the missing libcurl3 and libwebkitgtk packages for BOINC. Added the graphics-drivers ppa and selected the nvidia-396 drivers from Additional Drivers tab in the Software Updater. Rebooted after installation and started the Manager by double clicking boincmgr and BOINC started right up with finding all 3 of my gpus and loaded both the CUDA and OpenCL Nvidia 396.61 driver components.

[Edit] Sure wish some of my wingmen would report in . . . . Need some validations to get more tasks and reasonable APR's and run_times.
[Edit][Edit} Yay, Finally a overflow task validates. No help for the APR though.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

I just made a new cruncher and simply installed the TBar 7.4.44 BOINC. Installed the CUDA90 application and installed the missing libcurl3 and libwebkitgtk packages for BOINC. Added the graphics-drivers ppa and selected the nvidia-396 drivers from Additional Drivers tab in the Software Updater. Rebooted after installation and started the Manager by double clicking boincmgr and BOINC started right up with finding all 3 of my gpus and loaded both the CUDA and OpenCL Nvidia 396.61 driver components.

396 also seems to run faster almost 40 seconds off wu's

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I came down with a bad case of i don't give a crap

But that is likely to people running Petri's newest beta app with the static linked libraries which REQUIRE the 396 drivers minimum.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)