Posts by David Anderson (not *that* DA)


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1) Message boards : Number crunching : SETI/BOINC Milestones [ v2.0 ] - XXIX (Message 1781312)
Posted 22 Apr 2016 by Profile David Anderson (not *that* DA)Project Donor
Finally hit 30 million Seti cobblestones! Essentially all CPU as Seti is mostly not able to use my nVidia GPUs (old or new).

Congratulations to all of you reaching your milestones.
2) Message boards : Number crunching : No Usable GPU in Linux (Message 1741473)
Posted 12 Nov 2015 by Profile David Anderson (not *that* DA)Project Donor
Been focusing on the host with one 750.
Event log shows Seti does not see the GPU
or reqeust GPU tasks
though Einstein and boinc do see the GPU.
3) Message boards : Number crunching : No Usable GPU in Linux (Message 1741370)
Posted 11 Nov 2015 by Profile David Anderson (not *that* DA)Project Donor
Was running with nvidia driver installed by sgfxi.
A 14.04 kernel update resulted in absurd
window/text sizes (very very large)
Apparently noveau driver?
Uh Oh.

Did:
cntrl-alt F2
(to stop X)
(login to text window)
sudo su -
service lightdm stop
sudo apt-get remove `dpkg-query --show '*nvidia*'`
apt-get remove dkms
sgfxi
(and now back to 355 nvidia driver,
and on a reboot to test that this survives reboot,
all is well with boinc on restarting boinc-client).
Still not really getting Seti GPU tasks much if at all,
but oh well.
4) Message boards : Number crunching : No Usable GPU in Linux (Message 1739992)
Posted 5 Nov 2015 by Profile David Anderson (not *that* DA)Project Donor
I've modified app_info.xml on the dual-760's machine
to read along the lines you suggested, but naming
what apps and shared libraries I have right now.

I have no idea if the result is correct or useful.

<app_info>
<app>
<name>setiathome_v7</name>
</app>
<file_info>
<name>MBv7_7.05r2549_sse42_linux64</name>
<executable/>
</file_info>
<app_version>
<app_name>setiathome_v7</app_name>
<version_num>705</version_num>
<cmdline></cmdline>
<file_ref>
<file_name>MBv7_7.05r2549_sse42_linux64</file_name>
<main_program/>
</file_ref>
</app_version>
<app>
<name>astropulse_v7</name>
</app>
<file_info>
<name>ap_7.05r2728_sse3_linux64</name>
<executable/>
</file_info>
<app_version>
<app_name>astropulse_v7</app_name>
<version_num>705</version_num>
<platform>x86_64-pc-linux-gnu</platform>
<plan_class></plan_class>
<cmdline></cmdline>
<file_ref>
<file_name>ap_7.05r2728_sse3_linux64</file_name>
<main_program/>
</file_ref>
</app_version>


<file_info>
<name>setiathome_x41g_x86_64-pc-linux-gnu_cuda32</name>
<executable/>
</file_info>

<file_info>
<name>libcudart.so.3</name>
<executable/>
</file_info>

<file_info>
<name>libcufft.so.3</name>
<executable/>
</file_info>

<app_version>
<app_name>setiathome_v7</app_name>
<version_num>705</version_num>
<plan_class>cuda32</plan_class>
<avg_ncpus>0.1</avg_ncpus>
<max_ncpus>0.1</max_ncpus>
<coproc>
<type>CUDA</type>
<count>1</count>
</coproc>
<file_ref>
<file_name>setiathome_x41g_x86_64-pc-linux-gnu_cuda32</file_name>
<main_program/>
</file_ref>
<file_ref>
<file_name>libcudart.so.3</file_name>
</file_ref>
<file_ref>
<file_name>libcufft.so.3</file_name>
</file_ref>
</app_version>



</app_info>
5) Message boards : Number crunching : No Usable GPU in Linux (Message 1739957)
Posted 5 Nov 2015 by Profile David Anderson (not *that* DA)Project Donor
About the machine with 760's:
There has to be something wrong.
The latest request for Seti tasks says 0 tasks
available. Not even getting CPU tasks.
Puzzling.

einstein is working though.

Tomorrow I'll update that one per Fawkesguy.
6) Message boards : Number crunching : No Usable GPU in Linux (Message 1739954)
Posted 5 Nov 2015 by Profile David Anderson (not *that* DA)Project Donor
Fawkesguy's advice seems to have worked.
Thanks!

Nothing untoward seems to have happened.
Running 355.11 now.

I'll wait a day or two to see what
happens and if nothing notable I will do it
on my other other
machine with modern nVidia.
7) Message boards : Number crunching : No Usable GPU in Linux (Message 1739938)
Posted 5 Nov 2015 by Profile David Anderson (not *that* DA)Project Donor
The nvidia runfile for 7.5 refuses to run because it notices
nvidia_uvm is a loaded module, and quits.
This on Ubuntu 14.04.

I updated /etc/default/grub to boot in text mode
and then 'sudo update-grub'. So I get a text window
and no graphics. But no joy anyway.

I don't know how to get past this issue.
google queries have been no help. So far.
8) Message boards : Number crunching : No Usable GPU in Linux (Message 1738629)
Posted 31 Oct 2015 by Profile David Anderson (not *that* DA)Project Donor
Hmm. https://developer.nvidia.com/cuda-downloads?sid=480386
I downloaded the runfile version ( the .deb could
not be downloaded).
Thanks for the link, TBar

The nvidia download page offered the driver
and optionally the "GPU Deployment Kit"
as a separate download. What is that?
The NVIDIA CUDA INSTALLATION GUIDE
FOR LINUX (capitalization is theirs) does not mention
the Deployment Kit so I'm ignoring the Deployment Kit.

Not sure I want to try installation today.
9) Message boards : Number crunching : No Usable GPU in Linux (Message 1738145)
Posted 30 Oct 2015 by Profile David Anderson (not *that* DA)Project Donor
What I wonder is what is the consequence of
installing the nVidia cuda toolkit on gpu tasks
(seti or others) that are currently running (or stopped)?

Do they just get errored off (ok I suppose) get odd error?
Unpredictable?
10) Message boards : Number crunching : No Usable GPU in Linux (Message 1736752)
Posted 24 Oct 2015 by Profile David Anderson (not *that* DA)Project Donor
The nvidia-cuda-toolkit shows up in synaptic but
installing it would remove 346 and install 340.
I'm not changing anything here just yet.
11) Message boards : Number crunching : No Usable GPU in Linux (Message 1735435)
Posted 19 Oct 2015 by Profile David Anderson (not *that* DA)Project Donor
Note the above list does not show the 346-uvm installed.
Synaptic shows that uvm, but without it the GPU seems
to be doing work. No AP work on hand it appears,
so it is Einstein using the GPU
12) Message boards : Number crunching : No Usable GPU in Linux (Message 1735433)
Posted 19 Oct 2015 by Profile David Anderson (not *that* DA)Project Donor
Read TBar's note more carefully.
Synaptic says (with nvidia as the filter) I have
the following installed and boinc sees the gpu:

nvidia-opencl-icd-346
nvidia-modprobe
libcuda1-346
nvidia-libopencl1-346
nvidia-346
nvidia-prime
bbswitch-dkms
ubuntu-drivers-common
libvdpau1
xserver-xorg-nvidia-lts-vivid
dmraid
13) Message boards : Number crunching : No Usable GPU in Linux (Message 1735432)
Posted 19 Oct 2015 by Profile David Anderson (not *that* DA)Project Donor
At the risk of saying something stupid yet again:

With a new machine (XUbuntu 14.04 ) Ubuntu nVidia drivers installed
ok (I used the Additonal Drivers panel)
but tbe GPU was not recognized by boinc till I also did
sudo apt-get install nvidia-modprobe

Apparently with new installs that -uvm stuff TBar
mentioned is no longer separate, no longer something
that requires attention (after a couple years
of problems with every new kernel).
Finally.
14) Message boards : Number crunching : Optimized apps: interpreting cpu flags (Message 1707202)
Posted 1 Aug 2015 by Profile David Anderson (not *that* DA)Project Donor
The MB optimized apps are indeed much much faster than stock.
I did have to 'reset' seti via boinc-mgr to get
all working again (something left over
was inhibiting new tasks) but the new apps will make up for the
lost time in under 24 hours.
15) Message boards : Number crunching : Optimized apps: interpreting cpu flags (Message 1706774)
Posted 30 Jul 2015 by Profile David Anderson (not *that* DA)Project Donor
Great info. Thanks..
So where the optimized AP lists sse3 and I have ssse3
I can use sse3. Right?
16) Message boards : Number crunching : Optimized apps: interpreting cpu flags (Message 1706763)
Posted 30 Jul 2015 by Profile David Anderson (not *that* DA)Project Donor
Looking at the Lunatics for Linux optimized app pages.
For AP it lists sse2 sse3 avx as separate downloads.

For MB it lists sse2 sse3 ssse3, separate downloads.

Both systems running Ubuntu 14.04 and xfce

System A:
My 32bit OS with Intel cpu lists sse2 ssse3 sse4_1.
So, for AP which Lunatics to choose? Neither ssse3 nor sse4_1 listed.
For MB ssse3 looks good.

System B:
My 64bit OS with Intel cpu lists sse2 ssse3 sse4_1 sse4_2.
For AP downloads I'm pretty confused sse3 != ssse3?
For MB the sse4_2 looks good.


My attempts to answer this myself did not lead me to anything I
understood how to apply to my situation.
Sign me confused.
17) Message boards : Number crunching : SETI/BOINC Milestones [ v2.0 ] - XXIX (Message 1697476)
Posted 1 Jul 2015 by Profile David Anderson (not *that* DA)Project Donor
Just hit 25Million for Seti.
18) Message boards : Number crunching : New Linux rootkit leverages GPUs to hide (Message 1678245)
Posted 11 May 2015 by Profile David Anderson (not *that* DA)Project Donor
To get chkrootkit 0.50 to build I changed %ld to %d, two places.
Neither 32- nor 64- bit Ubuntu uid are type 'long' in 14.04.

Found 3 suspicious apps running without a terminal...
Oh. Just Einstein on GPUs. stopped boinc and that warning
went away. Restarted boinc.
19) Message boards : Number crunching : New Linux rootkit leverages GPUs to hide (Message 1677842)
Posted 10 May 2015 by Profile David Anderson (not *that* DA)Project Donor
We don't need no stinking ...! Never mind.
(insert usual hope that limited Linux user base
makes us less interesting...)

We do have rkhunter and chkrootkit
that check for some things.
Hmm. I should build latest chkrootkit
as it may be 9 months old, but it is newer
than what Ubuntu current Long Term Stable
release has.

Security researchers I respect
suggest AV is effective on maybe
50% of Windows viruses (yikes).

I also believe the labels on grocery products,
so I guess that makes me gullible :-)
20) Message boards : Number crunching : Ubuntu Linux GPU woes nearing end (Message 1665441)
Posted 15 Apr 2015 by Profile David Anderson (not *that* DA)Project Donor
Starting in late 2014 Ubuntu users were encountering difficulties getting a working nvidia GPU driver. This was crucial for GPU crunching.

Thousands of machines were listed on Ubuntu bug number 1268257.

The problem was finally understood -- as reported in 1431753.

Most were able to work around this, but...it took a
few commands --- after every new kernel update and reboot.

It's fixed in the most recent Ubuntu and hopefully soon in 14.04,
the current LTS release.
The problem was the nvidia driver setup was (for at least driver 331)
in two parts and the minor kernel build that incorporates such
is not prepared for that (A 2 part driver build
violates the rules for DKMS builds). So (with some randomness
depending on timing on a given new-kernel-install) gpu module builds could fail
with various consequences (rarely dire, but sometimes...).

I'm no kernel expert. This affected me.
Today's new Linux kernel 3.13.0-49 #83 installed for me
with none of the scary messages (which is not proof
that the problem is actually squashed yet, but still it's nice...)

I just wanted to wrap up this issue so anyone else
on 14.04 would know there is light at the end of the tunnel.


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