Posts by Francesco Forti


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1) Message boards : Number crunching : V8 CUDA for Linux? (Message 1785787)
Posted 21 days ago by Profile Francesco Forti
It just appeared for me last night (Mint 17.3); packages are cuda-drivers, nvidia-graphics-drivers-352, nvidia-modprobe and nvidia-settings in the Mint Update Manager all 352.93.

I confirm.
Now I see nvidia-modprobe too. Was missing some weeks ago.
2) Message boards : Number crunching : V8 CUDA for Linux? (Message 1783417)
Posted 29 Apr 2016 by Profile Francesco Forti
Yes, it looks as though Modprobe is back in the repository with 16.04, as we know, it's Not in the Mint repository.

Just to be more exact, I have in this moment 4 host with mint 17.3 and in some of them I have nvidia mobprobe in the repository. I don't know how. May be some machine was mint 17 and then updated to 17.1, > 17.2 and finally 17.3. Max be something depend on Geforce GPU.
3) Message boards : Number crunching : V8 CUDA for Linux? (Message 1782993)
Posted 27 Apr 2016 by Profile Francesco Forti

Open up Driver Manager (Menu - Administration - Driver Manager)
Select 361.42 from the list. Once complete it will ask to restart.

Upon restart and back in desktop, use GDEBI to install NVIDIA-MODPROBE.

In my case, no 361.42 driver in list and no nvidia-modprobe in repository to Install.
So I have choosen other ways.
4) Message boards : Number crunching : V8 CUDA for Linux? (Message 1782575)
Posted 26 Apr 2016 by Profile Francesco Forti
I repeat my solution:

1) boinc from repository (7.2.42 x64)
2) driver from repository (352.63)
3) nVidia Toolkit 7.5 from here: https://developer.nvidia.com/cuda-toolkit

GPU job is non fast but I think that part of my problems are connected with the GPU internal in my Core i7 6700. Maybe some BIOS setting can do something.
5) Message boards : Number crunching : V8 CUDA for Linux? (Message 1782134)
Posted 24 Apr 2016 by Profile Francesco Forti
Your understanding of how Ubuntu (and Mint) work may be incorrect. Once the distribution is released package versions are mostly set in stone. Packages are mainly updated only to fix security issue or other serious bugs. There may be some exceptions, Firefox for example is updated fairly often.

I get a lof of updates weekly. Two or three each day. Bugs, security but also
improvements.
6) Message boards : Number crunching : V8 CUDA for Linux? (Message 1781655)
Posted 23 Apr 2016 by Profile Francesco Forti
Thanks!
7) Message boards : Number crunching : V8 CUDA for Linux? (Message 1781623)
Posted 23 Apr 2016 by Profile Francesco Forti
Just to clarify, I absolutely WANT to use official repository.
This give me the possibility to be automatically updated, for example.
Even if I'm 62, I'm not retired; I'm still working and I want to use my precious to make things in order to earn money. I can't follow strange update every time someone make a change somewhere in the linux word.
Evening, saturdays and sundays are for wife, sons, grandchildren and cats. Not necessarily in the same order, on the same day :-) but sometime I spend time for seti, if you like.

So the only thing I need is something working, even if other are faster.

If something is wrong in the official repository, I hope that sooner or later someone will update the repository. Best if sooner. And sooner will be if I don't follow shortcuts but I show the road found to working solutions.


Just as an experiment (that could be interesting for me and for someone else) I should like to try if multiple tasks in sigle GPU can do the difference.


So I repeat ... If some one can refresh my memory abot how to have multiple task on a single GPU, you are welcome.

Told this, of course I thank you, TBar, for all the given and precious help.
8) Message boards : Number crunching : V8 CUDA for Linux? (Message 1781611)
Posted 23 Apr 2016 by Profile Francesco Forti
may be my 750ti is working slow

9) Message boards : Number crunching : V8 CUDA for Linux? (Message 1781584)
Posted 23 Apr 2016 by Profile Francesco Forti
It seems your GTX 750Ti times are just as slow as your other CUDA cards. It should be MUCH faster than it is running. My only guess is it's related to all the items from the Repository you have installed. I only have the Berkeley BOINC and the nVidia driver installed on my normal systems.


I will investigate on GTX 750ti times.
In this moment I see that CPU job is faster (roughly +76%).
Here a pivot table.



I remember that it is possible to run 2 (or more) tasks on GPU.
I don't remember how. Something in some config file?

Can someone refresh my mind?
10) Message boards : Number crunching : V8 CUDA for Linux? (Message 1781320)
Posted 22 Apr 2016 by Profile Francesco Forti
Now I have installed "SETIv8_Linux_CUDA42" and I get:

ven 22 apr 2016 17:55:45 CEST | | App version needs OpenCL but GPU doesn't support it


so ..."the never ending story" :-(

Just for info:
in my system if I look for nvidia-opencl* in synaptic I find

nvidia-opencl-icd-352 (version 352.63-0ubuntu0.14.04.1)
and
nvidia-libopencl1-352 (version 352.63-0ubuntu0.14.04.1)

In any case "SETI@home v8 Anonymous platform (NVIDIA GPU)" now are running.
Host ID is 7978786, if someone wants to veryify results.
11) Message boards : Number crunching : V8 CUDA for Linux? (Message 1781302)
Posted 22 Apr 2016 by Profile Francesco Forti
Previously we found installing nVidia Toolkit 7.5 solved the problem when all else failed, and it really isn't that difficult to install...compared to other solutions.

Ok, I'm going to install it from here: https://developer.nvidia.com/cuda-downloads


Here we go!

cuda-repo-ubuntu1404-7-5-local_7.5-18_amd64.deb Installation Instructions: `sudo dpkg -i cuda-repo-ubuntu1404-7-5-local_7.5-18_amd64.deb` `sudo apt-get update` `sudo apt-get install cuda`

1) impossible to install cuda (some dependecies)

so ...

2) I have changed repository driver, from 340 to 352.63 (recommended) and now "sudo apt-get install cuda" works.

Reboot ...and now:

ven 22 apr 2016 17:08:32 CEST | | CUDA: NVIDIA GPU 0: GeForce GTX 750 Ti (driver version unknown, CUDA version 7.5, compute capability 5.0, 2047MB, 1839MB available, 2208 GFLOPS peak)


So, summarizing ...
1) boinc from repository,
2) driver from repository
but
3) nVidia Toolkit 7.5 from here: https://developer.nvidia.com/cuda-toolkit

Edit:
Now I have installed "SETIv8_Linux_CUDA42" and I get:

ven 22 apr 2016 17:55:45 CEST | | App version needs OpenCL but GPU doesn't support it


so ..."the never ending story" :-(
12) Message boards : Number crunching : V8 CUDA for Linux? (Message 1781219)
Posted 22 Apr 2016 by Profile Francesco Forti
Previously we found installing nVidia Toolkit 7.5 solved the problem when all else failed, and it really isn't that difficult to install...compared to other solutions.

Ok, I'm going to install it from here: https://developer.nvidia.com/cuda-downloads
13) Message boards : Number crunching : V8 CUDA for Linux? (Message 1781217)
Posted 22 Apr 2016 by Profile Francesco Forti
[quote]

in /etc/rc.d/rc.local:

nvidia-smi
sleep 1
echo "boinc/dobo >/dev/null 2>&1 &" |su - boinc

and seti works even if X11 is not started on this PC.
nvidia-smi loads proper modules.


73
Iztok


I don't have any rc.d in /etc
I have a list of rc0.d to rc6.d + rcS.d but no rc.local file
14) Message boards : Number crunching : V8 CUDA for Linux? (Message 1781213)
Posted 22 Apr 2016 by Profile Francesco Forti
Wow :)
That's Linux...

:-)
15) Message boards : Number crunching : V8 CUDA for Linux? (Message 1780770)
Posted 20 Apr 2016 by Profile Francesco Forti
nVidia CUDA Toolkit is in Mint 17.3 repository as "5.5.22-3ubuntu1"

Installed with all dependencies.

Nothing
16) Message boards : Number crunching : V8 CUDA for Linux? (Message 1780087)
Posted 18 Apr 2016 by Profile Francesco Forti
System now reverted to Repository driver.

I'm looking for nvidia_modprobe (missing in my repository) and I have found sources, done the make and make install but nothing changed.
Of course of the same version of the driver (now I'm using 340.96)

I'm still with "No usable GPUs found".
17) Message boards : Number crunching : V8 CUDA for Linux? (Message 1780060)
Posted 18 Apr 2016 by Profile Francesco Forti
Host is new and without any important data, so I get the risk.

Installation done. Non errors.

But as Mint starts, Cinnamon crashes.
I have only a low resolution screen; hard to work.
I cannot revert to old nvidia dirvers so I need to reinstall Linux.
Boinc starts but "No usable GPU found".

Format and reinstall.
18) Message boards : Number crunching : V8 CUDA for Linux? (Message 1779918)
Posted 17 Apr 2016 by Profile Francesco Forti
If you're afraid to install the nVidia driver then don't. I'm certainly not going to force you. Stay with what you have.
I'd be Real afraid of installing that CUDA App if I were you, I actually DID make that.

It's not a problem of "afraid " but of full correct instructions.
One of the problems in the Net is that we can find a lot "do in such way" but as you know not all of them are sane.
I'm in IT since 1978 so I know that it's better to be very cautious.
If I see that first line is an error, something in my few neurons :-) tells me to be careful about other lines.
My goal is to run seti@ V8 on GPU in linux mint environment with GTX 750ti
Of course is not a medical prescription :-)
I know that you don't want to force me but I need to be sure of every step I do.
19) Message boards : Number crunching : V8 CUDA for Linux? (Message 1779853)
Posted 17 Apr 2016 by Profile Francesco Forti
Download the driver, http://www.nvidia.com/Download/driverResults.aspx/101423/en-us,
then move it to your Home folder and make sure the Execute Permission is set.
Close all programs then hit control+ALT+F1 to move into the console and Login.

Stop the XServer;
sudo service lightdm stop


sorry: lightdm unrecognized service

My system is Linux Mint 17.3 "Rosa" - Cinnamon (64-bit)

Looking on forum I have found this
https://forums.linuxmint.com/viewtopic.php?t=105443

Maybe mint 13 and before uses mdm not lightdm.

Sure that all your instructions are valid for mint 17?
20) Message boards : Number crunching : V8 CUDA for Linux? (Message 1779661)
Posted 16 Apr 2016 by Profile Francesco Forti
... I have the 361 driver installed and everything works fine Without Modprobe. However, if I remove the nVidia 361 and install 352 from the Repository BOINC, the SAME BOINC, will say it can't find the GPU. Remove the Repository 352 and Install 361, just as I've posted, and BOINC will find the GPU.
I'd suggest you forget about Modprobe and install the nVidia 361 driver as per my previous post. I'd also suggest Not using the Repository to Install BOINC, your life would be much simpler.
The only thing you have to do extra with the Berkeley_Installer is use ldd in the Terminal with the Package Manager to install the dependencies. You install the dependencies Once, then you're done. No more Permissions problems when using the Berkeley_Installer.

Ok, understood but "ldd" what is this?


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