Posts by Francesco Forti


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21) Message boards : Number crunching : V8 CUDA for Linux? (Message 1779659)
Posted 16 Apr 2016 by Profile Francesco Forti

By the way, mint 17.3 give me the possiblility to optimize software sources. And I have done it.
I have reverted to default choice .. bot nothing changed.
Nvididia-modprobe non found


Could you try :

apt-add-repository ppa:xorg-edgers/ppa -y
apt-get update

Done.
Still impossible to find nvidia-modprobe package
22) Message boards : Number crunching : V8 CUDA for Linux? (Message 1779630)
Posted 16 Apr 2016 by Profile Francesco Forti


So if someonne can tell me why with the same operating system (linux mint 17.3 cinnamon 64 bit) I have machine in which I see nvidia-modprobe in repository and I can install it and some other not.
Difference is only GPU type, but are all Geforce.


Check your repository file in /etc/apt/sources.list

Thanks for suggestion.
Same in both computer (with nvidia-modprobe found or not found)

#deb cdrom:[Linux Mint 17.3 _Rosa_ - Release amd64 20151128]/ trusty contrib main non-free

By the way, mint 17.3 give me the possiblility to optimize software sources. And I have done it.
I have reverted to default choice .. bot nothing changed.
Nvididia-modprobe non found
23) Message boards : Number crunching : V8 CUDA for Linux? (Message 1779558)
Posted 16 Apr 2016 by Profile Francesco Forti
Ok, thanks for the instructions.
Just to be sure, this driver works without the installation of nvidia-modprobe?
Is this utility installed on your host?

Becosuse of course my goal today is to install nvidia-modprobe just to have my GPU seen by Boinc with my actual driver. if I can, then I install the V8 application to CUDA.

But if I install driver 361 and I don't have my GPU seen by Boinc I am still at the foot of the ladder :-)

So if someonne can tell me why with the same operating system (linux mint 17.3 cinnamon 64 bit) I have machine in which I see nvidia-modprobe in repository and I can install it and some other not.
Difference is only GPU type, but are all Geforce.
24) Message boards : Number crunching : V8 CUDA for Linux? (Message 1779357)
Posted 15 Apr 2016 by Profile Francesco Forti
1) Yes, I have tried before to write here: impossible to find nvidia-modprobe package
2) how to install 361.42 ?
25) Message boards : Number crunching : V8 CUDA for Linux? (Message 1779324)
Posted 15 Apr 2016 by Profile Francesco Forti
Hi, again problems.

New host is ready: ID: 7978786

Boinc from repository. 8 CPUs cruncing.

GTX 750ti installed, with Nvidia 352.63

As usual I get "No usable GPUs found":

So I look for nvidia-modprobe but nothing ... "not found".

Usually I need it if driver is greater than 304.

But in this new installation I don't see any 304 to install.
And no nvidia-modprobe

Blocked.
26) Message boards : Number crunching : V8 CUDA for Linux? (Message 1779030)
Posted 14 Apr 2016 by Profile Francesco Forti
by the way, what happens to seti tasks if I move my SSD with Linux Mint from actual host to the new one?
27) Message boards : Number crunching : V8 CUDA for Linux? (Message 1778299)
Posted 12 Apr 2016 by Profile Francesco Forti
question:

How can I know, under linux, if I can run more than one CUDA on theese GPU?

NVIDIA GeForce GTX 260
NVIDIA GeForce GT 640
NVIDIA GeForce GTX 750
NVIDIA GeForce GTS 250

And if yes, which command and where have I to set?

Thanks
28) Message boards : Number crunching : V8 CUDA for Linux? (Message 1778298)
Posted 12 Apr 2016 by Profile Francesco Forti
I'm going to change the host with the overclocked 560.

Now I'm going to build a system based on Intel® Core™ i7-6700 Processor and a gtx 750ti.

I see that inside the CPU I will have a GPU: Intel® HD Graphics 530.
I ask if this GPU is able to work with CUDA on linux mint (SETIv8_Linux_CUDA42.7z) as a normal GPU.

Of course if I don't need the 750 GPU, I save some money and I can install some water cooling.

Any idea?
29) Message boards : Number crunching : V8 CUDA for Linux? (Message 1776200)
Posted 4 Apr 2016 by Profile Francesco Forti
Of course I need to know exactly how to set GTX 560 as default (non OC) params.
30) Message boards : Number crunching : V8 CUDA for Linux? (Message 1775918)
Posted 3 Apr 2016 by Profile Francesco Forti
Great advice, but my son is coming back soon so I don't want to change hardware on his pc.

I see that now I get a greater number of valid results (18, I see now), even if with e few seconds of job but good credit. Using NVIDIA X Seerver settings I see that gtx 560 is about 10-20% busy (95% of time) and sometimes is 50 or more. I have see one time that as the gpu reached 80%, the task ended.
In this moment I see 31 valid results done by 8 CPUs and 18 by 1 GPU. 36% of my credit in this host is done by GPU. Must be better but in two weeks I buy new hardware and I will not choose overclocked one!

About priority, for me it's better if I run Seti@ in low priority.
31) Message boards : Number crunching : V8 CUDA for Linux? (Message 1775787)
Posted 2 Apr 2016 by Profile Francesco Forti
summary

all my free GPUs are now working with SETIv8_Linux_CUDA42.7z

NVIDIA GeForce GTX 260
NVIDIA GeForce GT 640
NVIDIA GeForce GTX 560
NVIDIA GeForce GTS 250

All is working fine but GeForce GTX 560, perhaps because it's factory overclocked.
32) Message boards : Number crunching : V8 CUDA for Linux? (Message 1775714)
Posted 2 Apr 2016 by Profile Francesco Forti
done
now, after a strange series for reboots, I have the possibility to change fan speed but I don't see the clock frequency tab.
My son is telling me now that the board was already overclocked.
I will look for the box.

Found: factory overclocked
33) Message boards : Number crunching : V8 CUDA for Linux? (Message 1775709)
Posted 2 Apr 2016 by Profile Francesco Forti
Now with the different driver it seems BOINC is having a problem finding the card. Strange it didn't have that problem before.

Maybe this is because now I'm using 340 driver but nvidia-modprobe is still 352.79

nvidia-modprobe is a simple setuid root utility which loads the NVIDIA kenel
module and creates the NVIDIA device files, to allow usage of the NVIDIA
driver by client applications
that would otherwise not have sufficient
permission to load the module or create the device files on their own.


Maybe I have to find 340.96 nvidia-modprobe or to revert to 352 driver.
I do (now) this second option.
34) Message boards : Number crunching : V8 CUDA for Linux? (Message 1775708)
Posted 2 Apr 2016 by Profile Francesco Forti
This is my son's host, that now is in Australia.
He is a gamer so maybe he made something to the GPU clock or he bought a high-performance card.
I will ask him.
I don't know how to restore default clock in a Linux Mint system.
Sysinfo confirms 1851 clock.

Coming to results:

1) I see that now I have 44 inconclusive. Was 4 yesterday, before the change, so 40 are connected to CUDA42.
In all cases I see that (of course) the other hosts in work unit are "completed, validation inconclusive" too. I can't know if errors is mine or from other hosts but I suppose are mine. -9 overflow even with 340 driver.

2) zero errors, zero invalid

3) 3 valid results, even if -9 overflow. As I started abut 15 hours ago, it's normal that I get only 3 valid results. Better to wait 3 days, I think.

I tried to do same job on the host with 640 but ... I don't find nvidia-modprobe in synaptic package manager of that host. Very strange. Host are same linux (mint 17.3, cinnamon 64) and same repository. Any idea?

In any case I'm sure that all my other linux hosts with nvidia GPU are not overclocked.
35) Message boards : Number crunching : V8 CUDA for Linux? (Message 1775653)
Posted 1 Apr 2016 by Profile Francesco Forti
I have switched from 352 to 340 driver.
Maybe the -9 overflow error will disappear
36) Message boards : Number crunching : V8 CUDA for Linux? (Message 1775629)
Posted 1 Apr 2016 by Profile Francesco Forti
Probably the easiest way to determine if the card is responsible would be to swap the 560 with the 640. That way the same driver would work with the 640 and you probably wouldn't have to change any settings. It should work with a simple card swap. You can try the CUDA 60 App, but it probably won't help considering you're having the same problem with the OpenCL and CUDA 42 Apps.


I prefer to activate v8 nvidia on an other linux system, where I have NVIDIA GeForce GTX 260.
But tomorrow evening.
Or I can activate v8 nvidia on the host in wich I have 640.
37) Message boards : Number crunching : V8 CUDA for Linux? (Message 1775628)
Posted 1 Apr 2016 by Profile Francesco Forti
I see I have 4 inconclusive tasks as SETI@home v8 Anonymous platform (NVIDIA GPU) but other hosts of the work units are inconclusive too with
SETI@home v8 v8.00 (cuda50) windows_intelx86,
SETI@home v8 v8.00 windows_intelx86,
SETI@home v8 v8.00 (opencl_ati5_nocal) windows_intelx86
38) Message boards : Number crunching : V8 CUDA for Linux? (Message 1775615)
Posted 1 Apr 2016 by Profile Francesco Forti
Seen.
I'm not overclocking and temp is fine (GPU 54 C)
CPUs are water cooled (60 ~ 65 C)
39) Message boards : Number crunching : V8 CUDA for Linux? (Message 1775593)
Posted 1 Apr 2016 by Profile Francesco Forti
Hmmm, seems all the results are Overflows, which is highly unlikely. Checking your recent MBv7 results also shows Overflows. That particular machine may have been a bad choice for the first tests. I would suggest stopping BOINC and replacing the CUDA 42 App with the CUDA 60 App and seeing if it is any better. As long as you just replace the file names in the app_info and leave the version number & plan class the same you won't have any trouble. There is an example of an older CUDA 60 app in the app_info.xml~ file you downloaded. Basically you just change the App names and library names to match the new Version 8 CUDA 60 App.

I don't see it!
I have made the change e few hours ago (3) and I see only one inconclusive result and 25 waiting for validation
---
http://setiathome.berkeley.edu/result.php?resultid=4829949197

As I see that I have (storically) 4 inconclusive and 75 valid, rate 1 to 25 is better. May be it's better if I switch off AP.
40) Message boards : Number crunching : V8 CUDA for Linux? (Message 1775577)
Posted 1 Apr 2016 by Profile Francesco Forti
Ok, ... running.
I will see results tomorrows.
http://setiathome.berkeley.edu/results.php?hostid=7866790&offset=0&show_names=0&state=0&appid=29

By the way:

"When you switch from Stock to Anonymous platform the first thing the Server does is Delete ALL the Stock Apps and associated files from the setiathome.berkeley.edu folder. If you don't have another copy, you will have to track one down. After the Server deletes the files the first time, simply stop BOINC and paste the needed files back into the setiathome.berkeley.edu folder. They won't be deleted the second time."


No, this did not happens. Old task still running.
The only thing I see is that "remaining (estimated) of old task is longer than before ... but it is decrementing very quickly.


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