Posts by el_gallo_azul

1) Message boards : GPUs : Linux - Ubuntu 16.04 - boincmgr 7.6.31 - GPU drivers and software (Message 73301)
Posted 13 Oct 2016 by Profile el_gallo_azul
Post:
Thanks chaps. At this stage, my GPU projects are GPUGrid.net, Ibercivis and SETI@home.
2) Message boards : GPUs : Linux - Ubuntu 16.04 - boincmgr 7.6.31 - GPU drivers and software (Message 73286)
Posted 12 Oct 2016 by Profile el_gallo_azul
Post:
I have used an Nvidia GTX650Ti and GT730, with Nvidia proprietary drivers and CUDA software for BOINC computation.

My own graphics needs are very easily satisfied, so a GT220 I used was good enough for graphics.

However, I would like to use a powerful GPU for my BOINC projects.

As far as I can tell, there are three options for a GPU:

    Nvidia 6xx, 7xx, 8xx, 9xx, 10xx series; and

    Nvidia Quadra series; and

    AMD



Is that correct?

In which case, are there Linux drivers and (BOINC) computation software available for all 3 of them? I'm fairly confident about the drivers, but that's no good to me if there is no computation software that can be used for BOINC, such as the CUDA 7.5.18 that I currently use.

How is the Quadra series different from the Nvidia numbered series?

I have to ask because I have been trying to find the answers to these questions for weeks and have not succeeded.

I would appreciate any other suggestions or cautions.

3) Message boards : Questions and problems : I haven't been able to start boincmgr for the last hour or so. It was fine before that. (Message 72571)
Posted 21 Sep 2016 by Profile el_gallo_azul
Post:
Uh-oh. It was still fine yesterday, but I just tried to start BOINC Manager and the icon flashed but the application didn't start.

I then checked, and

~/BOINC Manager-el_gallo_azul


is there again. I'll delete it again now, but is there a nice clean way of preventing it from occurring again?

PS I did a quick
boincmgr -m
and it said that another instance is already running. I just had a quick look in
gnome-system-monitor
and there is no other instance running, so it seems to be a problem with that lockfile not being automatically deleted occasionally.
4) Message boards : Questions and problems : I haven't been able to start boincmgr for the last hour or so. It was fine before that. (Message 72543)
Posted 19 Sep 2016 by Profile el_gallo_azul
Post:
Was anything posted in either of those logfiles?

I don't know anything about
the lockfile issue on Linux
. Is it worth knowing?


I gather you mean

~/.BOINC/stderrgui.txt
~/.BOINC/stdoutgui.txt


which in my case would probably be

/mnt/InternalHDD/boinc-client/stderrgui.txt
/mnt/InternalHDD/boinc-client/stdoutgui.txt


because I've located all high-write-cycle stuff onto the HDD instead of the SSD.

I'm guessing if you typed

boincmgr -m


You may have seen an error about another instance running.


It's too late to find out.

In any case, the important thing is I'm up and running again. Hap-hap-happy.
5) Message boards : Questions and problems : I haven't been able to start boincmgr for the last hour or so. It was fine before that. (Message 72536)
Posted 18 Sep 2016 by Profile el_gallo_azul
Post:
Yep that was it.

I don't know anything about
the lockfile issue on Linux
. Is it worth knowing?
6) Message boards : Questions and problems : I haven't been able to start boincmgr for the last hour or so. It was fine before that. (Message 72535)
Posted 18 Sep 2016 by Profile el_gallo_azul
Post:
My apologies. I know perfectly well that I need to state version number of applications when looking for support. I must have just forgotten yesterday in my exasperation.

I use BOINC Manager version 7.6.31 (x64).
7) Message boards : Questions and problems : I haven't been able to start boincmgr for the last hour or so. It was fine before that. (Message 72506)
Posted 17 Sep 2016 by Profile el_gallo_azul
Post:
Out of sheer desperation, I just used the command

sudo boincmgr


and the UI started, so I am able to operate for the time being, however some problem has occurred within the last couple of hours, and I would like any help that anyone can provide to fix the problem and be able to start the UI by clicking the icon, as I have always been able to do for years until earlier this afternoon.
8) Message boards : Questions and problems : I haven't been able to start boincmgr for the last hour or so. It was fine before that. (Message 72505)
Posted 17 Sep 2016 by Profile el_gallo_azul
Post:
If I click on the BOINC Manager icon in the Ubuntu Unity launcher, it flashes for a while and then stops flashing, rather than flashing for a while and the application opening about a second after I click the icon.

It's 1000 times quicker to take actions through this UI than through using command
boinccmd
, so I'd really rather get it running again. I've rebooted the computer, but it still didn't work.

I suspended all my projects just before I had to shut down the computer about 2 hours ago, so nothing's happening on any of them right now.

I see on https://boinc.berkeley.edu/wiki/Boinccmd_tool that I can start tasks one at a time, but I can't see any way to use boinccmd to "resume all tasks" or "suspend all tasks".
9) Message boards : Questions and problems : Why is BOINC not actually using all processors in my computer today? (Message 63286)
Posted 29 Jul 2015 by Profile el_gallo_azul
Post:
OK thanks.
10) Message boards : Questions and problems : Why is BOINC not actually using all processors in my computer today? (Message 63274)
Posted 28 Jul 2015 by Profile el_gallo_azul
Post:
Thanks @tanstaafl9999 - I suspected that that was the reason, and then your comment made it seem even more likely.

Yes I'm stuck with 32GB at the moment, so I'll get some more.
11) Message boards : Questions and problems : Why is BOINC not actually using all processors in my computer today? (Message 63237)
Posted 27 Jul 2015 by Profile el_gallo_azul
Post:
It ran like that for a few hours, but now it seems to be running properly again.

This thread might as well be closed.
12) Message boards : Questions and problems : Why is BOINC not actually using all processors in my computer today? (Message 63236)
Posted 27 Jul 2015 by Profile el_gallo_azul
Post:
I've been using BOINC/BOINC Manager for over a year, and I have "On multiprocessor systems, use at most 100.00% of the processors" in the settings.

Processor use looked slightly low today (less than 90%), so I checked the running tasks, and there were 28 running instead of 32 (sometimes 33 with a GPUGRID task running). I just checked again and there are currently 29 tasks running.

I can't find any reason, and would prefer 100% of the processors to be used.

Any ideas?
13) Message boards : BOINC client : I'm running BOINC on ARM (non-Android) using Eltechs ExaGear Desktop (Message 61123)
Posted 21 Mar 2015 by Profile el_gallo_azul
Post:
I write this in case somebody else finds it useful.

A couple of months ago, I bought a Rikomagic MK902IILE (which uses Xubuntu) and a Rikomagic MK902II (using Android 4.4.2). I got BOINC running immediately on the Android one.

On the Xubuntu one, I persevered, but only got Computation error when running BOINC, because none of my BOINC projects were able to use the ARM architecture.

I had stumbled across a company that claimed to be able to facilitate installing and running i386/i686 applications on ARM. It's called Eltechs, and the application they sell is called ExaGear Desktop.

I dilly-dallied for some weeks, and eventually took the USD30 plunge a week ago after satisfying myself that I would probably be able to use it.

Within a couple of days, I received the download link, along with my licence key and instructions for a couple of critical steps.

I installed the package without any problems.

I then started exagear:
user@RIKOMAGIC:~$exagear
Starting the shell in the guest image /opt/exagear/images/ubuntu-1204lts


I wasn't able to use sudo inside the shell:
user@RIKOMAGIC:~$ sudo apt-get update
ExaGear itself does not support running SUID or SGID binaries,
they must be started using the binfmt_misc wrapper.
Please see the user manual for the details.


Then, I spent a day or two trying to resolve this issue so that I would be able to get BOINC running on the device. In the end, the solution was to enter su in the host system before starting exagear:

user@RIKOMAGIC:~$ sudo su
[sudo] password for user: 
root@RIKOMAGIC:/home/user# exagear
Starting the shell in the guest image /opt/exagear/images/ubuntu-1204lts
root@RIKOMAGIC:~# apt-get update
root@RIKOMAGIC:~# apt-get install boinc

I then exited su and exited the exagear shell.

Then, critically, I:
1. Entered su again in the host system (Xubuntu)
2. Started exagear
3. Started boincmgr (I did all this in order to make sure that I was running boincmgr inside the exagear shell)
4. Added my projects
5. Checked that tasks downloaded and seemed to start OK. They did.

I started the first tasks 22 hours ago. They still have some time left to run. I won't know for sure that it's all successful until these first tasks have been completed and uploaded. It's looking good though.

Note: One of my projects is vLHCathome. I tried to install VirtualBox in the guest system exagear using
apt-get install virtualbox
. The installation process started and ran, but I'm not sure if it was successful or not. I'll leave BOINC to run now, and just keep an eye on whether any vLHCathome tasks ever start running.
14) Message boards : Questions and problems : Continued from thread 8857 (re moving BOINC from SSD to HDD) (Message 57506)
Posted 9 Nov 2014 by Profile el_gallo_azul
Post:
I think that if you follow what I had to do, step by step, it will work. Each step makes sense (but for me, only once I knew that that step had to be done).
15) Message boards : Questions and problems : Continued from thread 8857 (re moving BOINC from SSD to HDD) (Message 57258)
Posted 1 Nov 2014 by Profile el_gallo_azul
Post:
OK I think I understand. The command 'groups' gives the groups of the current user. Got it.

Well done for babysitting me successfully to the end of this thread.

I think as SSDs become more ubiquitous, and until the current SSD write-cycle limitation problem has been resolved, this process is likely to be useful for many people. In my opinion, it would be worth publishing it neatly and concisely in the user manual, perhaps under "Running BOINC: advanced".
16) Message boards : Questions and problems : Continued from thread 8857 (re moving BOINC from SSD to HDD) (Message 57254)
Posted 1 Nov 2014 by Profile el_gallo_azul
Post:
Adding your user account, el_gallo_azul, to 'boinc' group might get Manager working

That sounds worth trying.

sudo usermod -a -G boinc el_gallo_azul


That all looked hunky-dory, then I got this from a terminal which doesn't make any sense to me (again):

el_gallo_azul@W2600CR-850Pro:~$ groups
el_gallo_azul adm cdrom sudo dip plugdev lpadmin sambashare


Oh well. In any case, I suspended BOINC, rebooted, and clicked on the BOINC Manager icon.

It started! Done.
17) Message boards : Questions and problems : Continued from thread 8857 (re moving BOINC from SSD to HDD) (Message 57250)
Posted 1 Nov 2014 by Profile el_gallo_azul
Post:
Since you now should have the symlink there

Yes that symlink is there.

have you modified the icon/.desktop-file

No

Your account also needs to be a member of boinc group

I'm afraid I'm not sure exactly what you mean, but symlink /var/lib/boinc-client which goes to /mnt/InternalHDD/boinc-client/, and /mnt/InternalHDD/boinc-client/ itself, both have

Owner: BOINC core client
Group: boinc
Others: None
18) Message boards : Questions and problems : Continued from thread 8857 (re moving BOINC from SSD to HDD) (Message 57219)
Posted 30 Oct 2014 by Profile el_gallo_azul
Post:
I have a couple of completed CPDN tasks showing now, so it all looks good. That's that one done. Hooray!
19) Message boards : Questions and problems : Continued from thread 8857 (re moving BOINC from SSD to HDD) (Message 57214)
Posted 30 Oct 2014 by Profile el_gallo_azul
Post:
I had to restart my computer after a kernel update earlier today, so I took the opportunity to see if BOINC Manager started from the Ubuntu launcher icon now. It doesn't work - again, like in Message 57094, the BOINC Manager icon flashes 6 times (ie. about 12 seconds), but that's all that happens, so I have to start it from a terminal using
boincmgr
.
20) Message boards : Questions and problems : Continued from thread 8857 (re moving BOINC from SSD to HDD) (Message 57207)
Posted 29 Oct 2014 by Profile el_gallo_azul
Post:
I'm just looking at the problem now.

I've just posted to a CPDN Message Board about it as well.

I just looked at an example of a work unit for which I had had a "Computation error", and it looks like all of its tasks have had errors on a variety of computers with different operating systems. I am computer 1326407 for that work unit.

It would be a shame for me to run out of free memory. I got several times what I (thought that I) needed, but maybe I should have gone straight to 128GB (the vendor's maximum) right from the start. Or maybe even 512GB.

Hopefully these errors are happening because of some quirk with the current batch of CPDN work units.


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