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Message boards : Number crunching : BOINC on Linux

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mackerelProject donor
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Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,124,499)Cullen LLR Turquoise: Earned 5,000,000 credits (5,149,818)ESP LLR Turquoise: Earned 5,000,000 credits (6,403,926)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,122,074)PPS LLR Sapphire: Earned 20,000,000 credits (44,500,703)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Jade: Earned 10,000,000 credits (17,319,914)SR5 LLR Jade: Earned 10,000,000 credits (18,479,395)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Jade: Earned 10,000,000 credits (15,154,737)Woodall LLR Turquoise: Earned 5,000,000 credits (5,715,464)321 Sieve Turquoise: Earned 5,000,000 credits (8,326,385)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (74,140,875)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (17,576,712)GFN Sapphire: Earned 20,000,000 credits (48,107,585)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 88324 - Posted: 21 Sep 2015 | 7:34:44 UTC

Having retired my two old Q6600 boxes, I realised I had almost enough spare parts to build a modern box to replace one of them, needing only a CPU and motherboard. After much consideration I ordered an OEM i3 Haswell. I debated the Pentiums but they seem to lack AVX, and as I'm primarily interested in LLR-ing, the premium for an i3 seemed worth it. Stepping up to i5 was pushing costs a bit more than I like after my previous spending.

Anyway, onto the operating system and the subject of this thread, I thought I'd try and break myself off Windows again, this would be a good time to revisit some kind of Linux. But which one?

In order of priority (highest first) the following are my goals:
1, to run BOINC with no fuss (including nvidia GPU)
2, to get a taste for what a current Linux desktop interface is like, if it might even replace Windows on more of my older systems (with only XP licences, not worth buying new Windows licences)

I would call myself a veteran noob at Linux in general. I've dabbled with it on and off for as long as I can remember, but never got comfortable enough with it for long term use. I have some familiarity with Suse which I started with many years ago, and more recently Ubuntu but not in the last couple of years or so.

I'm inclined to try the latest Ubuntu unless there is something "better" I should try, considering my goals listed earlier. Are there any quirks with configuring BOINC + GPU I should be aware of? I think in the old days it was common to make some tweak to disable power saving otherwise performance dropped. Is that still necessary?

Proposed spec:
CPU: i3-4150T
Mobo: Gigabyte H81-something (they make a million models which are almost identical)
Ram: 8GB DDR3 1600 (2x4GB)
GPU: GTX 960
HD: Intel 40GB SSD

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321 LLR Gold: Earned 500,000 credits (511,386)Cullen LLR Gold: Earned 500,000 credits (510,818)ESP LLR Gold: Earned 500,000 credits (825,968)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (564,210)PPS LLR Turquoise: Earned 5,000,000 credits (5,086,073)PSP LLR Gold: Earned 500,000 credits (686,232)SoB LLR Gold: Earned 500,000 credits (785,805)SR5 LLR Gold: Earned 500,000 credits (822,104)SGS LLR Turquoise: Earned 5,000,000 credits (5,095,282)TRP LLR Gold: Earned 500,000 credits (512,571)Woodall LLR Gold: Earned 500,000 credits (673,276)321 Sieve Ruby: Earned 2,000,000 credits (2,006,315)Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (944,431)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,813,253)PPS Sieve Double Silver: Earned 200,000,000 credits (336,786,578)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,446,797)AP 26/27 Sapphire: Earned 20,000,000 credits (33,132,385)GFN Sapphire: Earned 20,000,000 credits (24,806,170)PSA Sapphire: Earned 20,000,000 credits (20,457,430)
Message 88327 - Posted: 21 Sep 2015 | 11:17:10 UTC - in response to Message 88324.

Having retired my two old Q6600 boxes, I realised I had almost enough spare parts to build a modern box to replace one of them, needing only a CPU and motherboard. After much consideration I ordered an OEM i3 Haswell. I debated the Pentiums but they seem to lack AVX, and as I'm primarily interested in LLR-ing, the premium for an i3 seemed worth it. Stepping up to i5 was pushing costs a bit more than I like after my previous spending.

Anyway, onto the operating system and the subject of this thread, I thought I'd try and break myself off Windows again, this would be a good time to revisit some kind of Linux. But which one?

In order of priority (highest first) the following are my goals:
1, to run BOINC with no fuss (including nvidia GPU)
2, to get a taste for what a current Linux desktop interface is like, if it might even replace Windows on more of my older systems (with only XP licences, not worth buying new Windows licences)

I would call myself a veteran noob at Linux in general. I've dabbled with it on and off for as long as I can remember, but never got comfortable enough with it for long term use. I have some familiarity with Suse which I started with many years ago, and more recently Ubuntu but not in the last couple of years or so.

I'm inclined to try the latest Ubuntu unless there is something "better" I should try, considering my goals listed earlier. Are there any quirks with configuring BOINC + GPU I should be aware of? I think in the old days it was common to make some tweak to disable power saving otherwise performance dropped. Is that still necessary?

Proposed spec:
CPU: i3-4150T
Mobo: Gigabyte H81-something (they make a million models which are almost identical)
Ram: 8GB DDR3 1600 (2x4GB)
GPU: GTX 960
HD: Intel 40GB SSD


I'm not a Linux guy either and after trying alot of different Linux OS's have always come back to Ubuntu as it is the most 'Windows like' I have found. Since you won't be using a gpu to crunch with it is almost plug and play one you get it up and running and then download and install Boinc. I have always tried to use the built in software package installer for that as it is easier and just works. BUT you may not get the latest Boinc that way, at least not normally, just a fairly current one that works, I have found that sometimes the packages are a bit slow in keeping up.

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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,063,182)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Ruby: Earned 2,000,000 credits (3,820,430)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Ruby: Earned 2,000,000 credits (2,773,744)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Sapphire: Earned 20,000,000 credits (34,158,496)SR5 LLR Turquoise: Earned 5,000,000 credits (8,293,415)SGS LLR Ruby: Earned 2,000,000 credits (2,012,781)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (5,046,112)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,110,788)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (7,118,397)GFN Emerald: Earned 50,000,000 credits (64,595,124)PSA Jade: Earned 10,000,000 credits (10,135,447)
Message 88329 - Posted: 21 Sep 2015 | 12:38:19 UTC

Personally I like Debian a bit better than Ubuntu. A few years ago the Ubuntu desktop changed and I don't like the newer desktop. I find Debian's desktop more "Windows-like".

Both are very easy to set up, and since Ubuntu is based on Debian they're very similar.

Of course, if you're just building a cruncher you could not even install the desktop and ssh/PuTTY into the box. Except for initial setup, you don't need a monitor, keyboard, or mouse either.
____________
Please do not PM me with support questions. Ask on the forums instead. Thank you!

My lucky number is 75898524288+1

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Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,124,499)Cullen LLR Turquoise: Earned 5,000,000 credits (5,149,818)ESP LLR Turquoise: Earned 5,000,000 credits (6,403,926)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,122,074)PPS LLR Sapphire: Earned 20,000,000 credits (44,500,703)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Jade: Earned 10,000,000 credits (17,319,914)SR5 LLR Jade: Earned 10,000,000 credits (18,479,395)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Jade: Earned 10,000,000 credits (15,154,737)Woodall LLR Turquoise: Earned 5,000,000 credits (5,715,464)321 Sieve Turquoise: Earned 5,000,000 credits (8,326,385)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (74,140,875)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (17,576,712)GFN Sapphire: Earned 20,000,000 credits (48,107,585)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 88331 - Posted: 21 Sep 2015 | 12:56:41 UTC - in response to Message 88329.

Is this where we get into desktop managers? The old big two were Gnome and KDE if memory serves me correctly, then Ubuntu went and did their own thing. And there are countless other minor ones.

So given goal 2 in my original, I will install a desktop of some kind to play with, but I will certainly look at a more minimal system for crunchers.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (3,615,477)Cullen LLR Turquoise: Earned 5,000,000 credits (5,124,261)ESP LLR Turquoise: Earned 5,000,000 credits (7,825,942)Generalized Cullen/Woodall LLR Emerald: Earned 50,000,000 credits (50,656,837)PPS LLR Jade: Earned 10,000,000 credits (11,893,917)PSP LLR Sapphire: Earned 20,000,000 credits (36,318,010)SoB LLR Sapphire: Earned 20,000,000 credits (21,004,651)SR5 LLR Sapphire: Earned 20,000,000 credits (32,288,823)SGS LLR Ruby: Earned 2,000,000 credits (2,771,356)TRP LLR Turquoise: Earned 5,000,000 credits (5,867,891)Woodall LLR Ruby: Earned 2,000,000 credits (2,824,779)321 Sieve Turquoise: Earned 5,000,000 credits (5,863,434)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (27,921,016)PPS Sieve Double Silver: Earned 200,000,000 credits (340,666,518)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,990,608)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,217,057)AP 26/27 Turquoise: Earned 5,000,000 credits (5,445,921)GFN Sapphire: Earned 20,000,000 credits (20,125,379)PSA Double Silver: Earned 200,000,000 credits (420,586,383)
Message 88332 - Posted: 21 Sep 2015 | 12:59:40 UTC - in response to Message 88331.

Is this where we get into desktop managers? The old big two were Gnome and KDE if memory serves me correctly, then Ubuntu went and did their own thing. And there are countless other minor ones.

So given goal 2 in my original, I will install a desktop of some kind to play with, but I will certainly look at a more minimal system for crunchers.

For a desktop, prefer CrunchBang. It's lighter than Ubuntu and I like it better. It's debian based, has a nice script that runs at startup and guides you installing software
____________

275*2^3585539+1 is prime!!! (1079358 digits)

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321 LLR Silver: Earned 100,000 credits (101,692)Cullen LLR Silver: Earned 100,000 credits (104,876)ESP LLR Silver: Earned 100,000 credits (101,979)PPS LLR Silver: Earned 100,000 credits (148,018)PSP LLR Silver: Earned 100,000 credits (140,441)SoB LLR Silver: Earned 100,000 credits (119,475)SR5 LLR Silver: Earned 100,000 credits (120,939)SGS LLR Silver: Earned 100,000 credits (122,783)TRP LLR Silver: Earned 100,000 credits (100,115)Woodall LLR Silver: Earned 100,000 credits (107,459)321 Sieve Silver: Earned 100,000 credits (202,757)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,908,135)PPS Sieve Sapphire: Earned 20,000,000 credits (25,450,104)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (130,966)TRP Sieve (suspended) Silver: Earned 100,000 credits (201,525)AP 26/27 Silver: Earned 100,000 credits (100,015)GFN Silver: Earned 100,000 credits (246,369)PSA Silver: Earned 100,000 credits (226,594)
Message 88335 - Posted: 21 Sep 2015 | 14:12:33 UTC

I am using Lubuntu 14.04. It is a LTS version from Ubuntu with the fast and lightweight LXDE desktop.
____________
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Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,124,499)Cullen LLR Turquoise: Earned 5,000,000 credits (5,149,818)ESP LLR Turquoise: Earned 5,000,000 credits (6,403,926)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,122,074)PPS LLR Sapphire: Earned 20,000,000 credits (44,500,703)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Jade: Earned 10,000,000 credits (17,319,914)SR5 LLR Jade: Earned 10,000,000 credits (18,479,395)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Jade: Earned 10,000,000 credits (15,154,737)Woodall LLR Turquoise: Earned 5,000,000 credits (5,715,464)321 Sieve Turquoise: Earned 5,000,000 credits (8,326,385)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (74,140,875)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (17,576,712)GFN Sapphire: Earned 20,000,000 credits (48,107,585)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 88342 - Posted: 21 Sep 2015 | 17:20:52 UTC

So the consensus is... everyone likes a different distro of linux. Too much choice :)

Any quirks with getting GPU crunching?

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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,063,182)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Ruby: Earned 2,000,000 credits (3,820,430)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Ruby: Earned 2,000,000 credits (2,773,744)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Sapphire: Earned 20,000,000 credits (34,158,496)SR5 LLR Turquoise: Earned 5,000,000 credits (8,293,415)SGS LLR Ruby: Earned 2,000,000 credits (2,012,781)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (5,046,112)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,110,788)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (7,118,397)GFN Emerald: Earned 50,000,000 credits (64,595,124)PSA Jade: Earned 10,000,000 credits (10,135,447)
Message 88344 - Posted: 21 Sep 2015 | 17:52:06 UTC - in response to Message 88342.

So the consensus is... everyone likes a different distro of linux. Too much choice :)

Any quirks with getting GPU crunching?


Neither Jim nor I have ever gotten GPU crunching to work under Linux. Don't be surprised if it takes a bit of digging around to figure it out.

It has been done, obviously, but expect... quirks.
____________
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My lucky number is 75898524288+1

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Discovered 1 mega prime321 LLR Ruby: Earned 2,000,000 credits (2,614,439)Cullen LLR Ruby: Earned 2,000,000 credits (2,440,687)ESP LLR Turquoise: Earned 5,000,000 credits (5,613,309)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,292,626)PPS LLR Turquoise: Earned 5,000,000 credits (6,696,613)PSP LLR Turquoise: Earned 5,000,000 credits (5,000,433)SoB LLR Turquoise: Earned 5,000,000 credits (6,700,144)SR5 LLR Turquoise: Earned 5,000,000 credits (5,040,727)SGS LLR Ruby: Earned 2,000,000 credits (3,333,837)TRP LLR Jade: Earned 10,000,000 credits (12,510,311)Woodall LLR Ruby: Earned 2,000,000 credits (2,282,622)321 Sieve Silver: Earned 100,000 credits (200,818)Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (59,788,598)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,143,068)PPS Sieve Double Gold: Earned 500,000,000 credits (500,867,936)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,130,821)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,074,710)AP 26/27 Sapphire: Earned 20,000,000 credits (20,098,349)GFN Double Bronze: Earned 100,000,000 credits (152,259,971)PSA Emerald: Earned 50,000,000 credits (62,378,755)
Message 88348 - Posted: 21 Sep 2015 | 20:11:29 UTC

I'm running Ubuntu 14.04 on one i7 and Lubuntu 14.04 on the other. CPU and GPU are crunching away furiously... so it can be done. My GPUs are NVidia; can't speak to AMD.

My BOINC install on both boxes is "manual"... I did not use the "apt-get install" mechanism. I just downloaded the tarball from boinc.berkeley.edu/download.php, expanded it into its own sub-directory, and it "just works". Possible downside of this mechanism is that you won't get automatic BOINC s/w updates... but that might be a good thing! :-) Primegrid science app updates will work fine either way.

Video drivers: this can be tricky. Back in the day, ubuntu distros included a driver called "nouveau" which is brain-dead w/r/t CUDA. Not sure if this is still the case. But, at any rate, here are the command-line incantations that I used to get the real NVidia driver installed:

sudo apt-get --purge remove xserver-xorg-video-nouveau sudo add-apt-repository ppa:ubuntu-x-swat/x-updates sudo apt-get update && sudo apt-get install nvidia-current nvidia-current-modaliases nvidia-settings


You'll need your "root" password for this. Also, some packages may be out-of-date; particularly the "...modaliases" one. Just ignore complaints about that. I'm running driver 304.125, which is somewhat old, but it works! "If it ain't broke, don't fix it". I've tried newer versions without luck w/r/t performance.

--Gary

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Discovered 2 mega primes321 LLR Amethyst: Earned 1,000,000 credits (1,713,915)Cullen LLR Silver: Earned 100,000 credits (124,405)ESP LLR Silver: Earned 100,000 credits (322,263)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,854,054)PPS LLR Jade: Earned 10,000,000 credits (16,762,784)PSP LLR Silver: Earned 100,000 credits (138,801)SoB LLR Silver: Earned 100,000 credits (183,732)SR5 LLR Jade: Earned 10,000,000 credits (15,815,324)SGS LLR Turquoise: Earned 5,000,000 credits (6,499,225)TRP LLR Jade: Earned 10,000,000 credits (10,430,557)Woodall LLR Silver: Earned 100,000 credits (231,763)321 Sieve Bronze: Earned 10,000 credits (35,173)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (107,310)Generalized Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (104,850)PPS Sieve Sapphire: Earned 20,000,000 credits (23,600,385)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (238,178)TRP Sieve (suspended) Silver: Earned 100,000 credits (107,700)AP 26/27 Amethyst: Earned 1,000,000 credits (1,540,383)GFN Jade: Earned 10,000,000 credits (17,233,699)PSA Emerald: Earned 50,000,000 credits (81,502,903)
Message 88354 - Posted: 21 Sep 2015 | 23:56:50 UTC - in response to Message 88344.

It has been done, obviously, but expect... quirks.


Haha, yes "quirks" indeed!!

I went through the process of re-building a machine out of spare parts about two weeks ago (http://www.primegrid.com/show_host_detail.php?hostid=498992). I installed Ubuntu 14.04.3 LTS and the “boinc” & “boinc-nvidia-cuda” packages for Boinc, the Nvidia driver and dependencies. I really battled to get the BOINC installation to detect the GPU. After playing around for a while and spending some time on Google, I found and installed the missing “nvidia-modprobe” package which sorted out the issue.

Two further points, the first is that there seems to be a general (Ubuntu?) problem where Boinc is up and running before the Nvidia driver is ready and the GPU is reported as “missing” on reboot. There are more elegant ways of resolving this but I just “sudo /etc/init.d/boinc-client restart” as soon as I log in and that gets it going.
The second point is that some GPU/driver combinations just refuse to show up in Ubuntu-Boinc unless there is a monitor or dummy plug connected to that card.

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Discovered 16 mega primesEliminated 2 conjecture "k"sFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 4 primes in the 2019 Tour de PrimesFound 2 mega primes in the 2019 Tour de PrimesFound 1 prime in the 2019 Tour de Primes Mountain Stage321 LLR Emerald: Earned 50,000,000 credits (50,589,422)Cullen LLR Emerald: Earned 50,000,000 credits (51,425,403)ESP LLR Emerald: Earned 50,000,000 credits (59,747,151)Generalized Cullen/Woodall LLR Emerald: Earned 50,000,000 credits (59,199,415)PPS LLR Emerald: Earned 50,000,000 credits (97,915,589)PSP LLR Emerald: Earned 50,000,000 credits (55,716,862)SoB LLR Emerald: Earned 50,000,000 credits (71,933,705)SR5 LLR Emerald: Earned 50,000,000 credits (50,919,719)SGS LLR Emerald: Earned 50,000,000 credits (51,327,296)TPS LLR (retired) Bronze: Earned 10,000 credits (61,785)TRP LLR Emerald: Earned 50,000,000 credits (61,671,238)Woodall LLR Emerald: Earned 50,000,000 credits (50,544,668)321 Sieve Emerald: Earned 50,000,000 credits (56,793,407)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,685,309)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (53,324,439)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (3,085,564,413)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,057,785)TRP Sieve (suspended) Emerald: Earned 50,000,000 credits (50,146,560)AP 26/27 Double Bronze: Earned 100,000,000 credits (164,762,545)GFN Double Gold: Earned 500,000,000 credits (820,619,526)PSA Double Bronze: Earned 100,000,000 credits (185,423,866)
Message 88362 - Posted: 22 Sep 2015 | 11:14:02 UTC - in response to Message 88342.

Any quirks with getting GPU crunching?


For a distro with default installation yes.

I am a linux GPU boincer with opensuse. After a fresh installation I add the packages for kernel-source, gcc, c++, make, automake, autoconf, patch and libtool. After this is done you can download the drivers from NVidia, open a console as root, "init 3", and then install the NVidia driver (e.g. NVIDIA-Linux-x86_64-352.41.run).

After a reboot you will be able to do GPU work with linux.

____________
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Discovered 2 mega primesFound 1 prime in the 2018 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,090,406)Cullen LLR Gold: Earned 500,000 credits (776,297)ESP LLR Ruby: Earned 2,000,000 credits (2,160,301)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,056,207)PPS LLR Jade: Earned 10,000,000 credits (10,631,176)PSP LLR Ruby: Earned 2,000,000 credits (3,777,949)SoB LLR Sapphire: Earned 20,000,000 credits (20,233,229)SR5 LLR Turquoise: Earned 5,000,000 credits (5,978,312)SGS LLR Ruby: Earned 2,000,000 credits (2,932,085)TRP LLR Turquoise: Earned 5,000,000 credits (7,021,680)Woodall LLR Amethyst: Earned 1,000,000 credits (1,693,614)321 Sieve Turquoise: Earned 5,000,000 credits (9,475,479)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,571,178)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,009,610)PPS Sieve Double Silver: Earned 200,000,000 credits (233,250,224)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,165,888)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,071,454)AP 26/27 Ruby: Earned 2,000,000 credits (2,544,827)GFN Sapphire: Earned 20,000,000 credits (48,678,064)PSA Double Bronze: Earned 100,000,000 credits (102,762,384)
Message 88381 - Posted: 23 Sep 2015 | 0:41:02 UTC
Last modified: 23 Sep 2015 | 0:48:01 UTC

Linux Mint is by far the distro of choice by Linux users that visit distrowatch http://www.distrowatch.org.
I iterated through numerous distros and serendipitously settled on Linux Mint. It's a remix of latest Ubuntu and Debian with Gnome2 GUI ("MATE"), preferred by those who want a stable GUI, but also bug fixes and security updates at a fair clip. I was fed up with being treated like a lab rat in Ubuntu's weird GUI experiments. I'm running a desktop computer damit, not an ipad wannabe.

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Discovered 1 mega prime321 LLR Gold: Earned 500,000 credits (622,449)Cullen LLR Amethyst: Earned 1,000,000 credits (1,019,085)ESP LLR Amethyst: Earned 1,000,000 credits (1,006,207)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (769,754)PPS LLR Ruby: Earned 2,000,000 credits (3,839,000)PSP LLR Amethyst: Earned 1,000,000 credits (1,147,411)SoB LLR Gold: Earned 500,000 credits (521,611)SR5 LLR Amethyst: Earned 1,000,000 credits (1,036,817)SGS LLR Amethyst: Earned 1,000,000 credits (1,069,052)TRP LLR Amethyst: Earned 1,000,000 credits (1,004,422)Woodall LLR Gold: Earned 500,000 credits (531,350)321 Sieve Silver: Earned 100,000 credits (223,275)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,655,968)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,006,509)PPS Sieve Double Silver: Earned 200,000,000 credits (343,952,410)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,014,690)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,141,121)AP 26/27 Amethyst: Earned 1,000,000 credits (1,422,266)GFN Ruby: Earned 2,000,000 credits (4,753,065)PSA Jade: Earned 10,000,000 credits (16,276,495)
Message 88396 - Posted: 23 Sep 2015 | 16:13:13 UTC

Has anyone tried Ubuntu Mate? It's old style Ubuntu i.e. no attempt to follow in the footsteps of W8.

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Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,124,499)Cullen LLR Turquoise: Earned 5,000,000 credits (5,149,818)ESP LLR Turquoise: Earned 5,000,000 credits (6,403,926)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,122,074)PPS LLR Sapphire: Earned 20,000,000 credits (44,500,703)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Jade: Earned 10,000,000 credits (17,319,914)SR5 LLR Jade: Earned 10,000,000 credits (18,479,395)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Jade: Earned 10,000,000 credits (15,154,737)Woodall LLR Turquoise: Earned 5,000,000 credits (5,715,464)321 Sieve Turquoise: Earned 5,000,000 credits (8,326,385)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (74,140,875)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (17,576,712)GFN Sapphire: Earned 20,000,000 credits (48,107,585)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 88418 - Posted: 23 Sep 2015 | 22:28:41 UTC

Thanks for all the Linux suggestions so far. Still plenty of choice I see, and even within the Ubuntu derivatives there's more than a bit of choice.

Given some of the design decisions of Ubuntu, I think I will give Mint a try first this time and see how I go from there. I'm a bit surprised it seems to be the most popular one these days, taking over from Ubuntu. The last time I looked at distros I think mint was offered as a slimmed down version of Ubuntu. How times change.


On the GPU side, thanks for the tips so far. That will be a battle for another day as GPU crunching is a distant second from CPU crunching. One thing with reference to boinc may start before the video driver. I assume it will depend on how it is "installed", but does it run as soon as the box starts, or on login, or when you manually start it? On all my Windows installs, I've set it to only run when I manually start it. Boinc would run at user level, not at system or service level, or whatever it is called.

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Discovered 2 mega primes321 LLR Amethyst: Earned 1,000,000 credits (1,713,915)Cullen LLR Silver: Earned 100,000 credits (124,405)ESP LLR Silver: Earned 100,000 credits (322,263)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,854,054)PPS LLR Jade: Earned 10,000,000 credits (16,762,784)PSP LLR Silver: Earned 100,000 credits (138,801)SoB LLR Silver: Earned 100,000 credits (183,732)SR5 LLR Jade: Earned 10,000,000 credits (15,815,324)SGS LLR Turquoise: Earned 5,000,000 credits (6,499,225)TRP LLR Jade: Earned 10,000,000 credits (10,430,557)Woodall LLR Silver: Earned 100,000 credits (231,763)321 Sieve Bronze: Earned 10,000 credits (35,173)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (107,310)Generalized Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (104,850)PPS Sieve Sapphire: Earned 20,000,000 credits (23,600,385)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (238,178)TRP Sieve (suspended) Silver: Earned 100,000 credits (107,700)AP 26/27 Amethyst: Earned 1,000,000 credits (1,540,383)GFN Jade: Earned 10,000,000 credits (17,233,699)PSA Emerald: Earned 50,000,000 credits (81,502,903)
Message 88420 - Posted: 23 Sep 2015 | 23:18:59 UTC - in response to Message 88418.

One thing with reference to boinc may start before the video driver. I assume it will depend on how it is "installed", but does it run as soon as the box starts, or on login, or when you manually start it?


It does depend on how it was installed. I have seen this problem only when Boinc is installed from the Ubuntu repositories. It runs automatically as the box starts (before login) via a "init.d" script and is owned by a user named "boinc". The automatic start-up can easily be disabled and is discussed here: http://boinc.berkeley.edu/wiki/Installing_BOINC_on_Ubuntu




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Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,124,499)Cullen LLR Turquoise: Earned 5,000,000 credits (5,149,818)ESP LLR Turquoise: Earned 5,000,000 credits (6,403,926)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,122,074)PPS LLR Sapphire: Earned 20,000,000 credits (44,500,703)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Jade: Earned 10,000,000 credits (17,319,914)SR5 LLR Jade: Earned 10,000,000 credits (18,479,395)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Jade: Earned 10,000,000 credits (15,154,737)Woodall LLR Turquoise: Earned 5,000,000 credits (5,715,464)321 Sieve Turquoise: Earned 5,000,000 credits (8,326,385)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (74,140,875)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (17,576,712)GFN Sapphire: Earned 20,000,000 credits (48,107,585)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 88628 - Posted: 1 Oct 2015 | 22:48:47 UTC

I finally installed Mint onto one of the new systems tonight.

Problem 1: I didn't seem to be using the GPU for desktop rendering. Long story short, turns out the packages in Mint aren't new enough to support it. Not wanting to go through a lot of command line hoops, I thought it easier to swap the card for an ancient one. That did the trick and I'm not seeing tons of CPU used for rendering any more. I'll move the GPU into a different Windows box later in case I feel like crunching on it.

Problem 2: the processor is 2 cores 4 threads. But I'm seeing two LLR tasks wonder around, often going onto the same physical core instead of using separate cores. Obviously this has severe performance impact. In some searching I'm not sure what's going on or how to fix it other than see if I can disable HT in bios. I don't recall seeing that setting in there before... but I wasn't looking for it either.

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Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,124,499)Cullen LLR Turquoise: Earned 5,000,000 credits (5,149,818)ESP LLR Turquoise: Earned 5,000,000 credits (6,403,926)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,122,074)PPS LLR Sapphire: Earned 20,000,000 credits (44,500,703)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Jade: Earned 10,000,000 credits (17,319,914)SR5 LLR Jade: Earned 10,000,000 credits (18,479,395)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Jade: Earned 10,000,000 credits (15,154,737)Woodall LLR Turquoise: Earned 5,000,000 credits (5,715,464)321 Sieve Turquoise: Earned 5,000,000 credits (8,326,385)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (74,140,875)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (17,576,712)GFN Sapphire: Earned 20,000,000 credits (48,107,585)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 88630 - Posted: 1 Oct 2015 | 23:45:08 UTC - in response to Message 88628.

Tried researching further which suggested odd logical CPUs were on one core, even the other. I see activity on the 1st always, and the remaining activity is on one of the others. I've turned off HT now so that wont be a problem any more.

The unit times I've now compared against the other almost identical box other than running Windows. The linux box seems to be doing it faster! For PPSE, 120k FFT units seem to be completing in around 750 seconds compared to 850 on windows. 96k FFTs are well under 600s on linux, 650-ish on windows. Is this for real? Does this scale up to bigger projects? I might have a busy weekend installing linux before the challenge if so!

I will set both i3 boxes to SGS shortly but the windows one will take some time going through a test on TRP first. So that will provide a direct comparison in performance with less variability than PPS family of units. The windows box still has HT enabled, so I'll also test turning that off later on.

The testing never ends!

For reference again, both boxes have the same CPU and motherboard. They have different GPUs but this isn't used for anything other than displaying the desktop. Ram is also different, but both sets are DDR3-1600 CL8 running dual channel. Both have after market coolers on them so shouldn't be any risk of thermal throttling.

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321 LLR Gold: Earned 500,000 credits (511,386)Cullen LLR Gold: Earned 500,000 credits (510,818)ESP LLR Gold: Earned 500,000 credits (825,968)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (564,210)PPS LLR Turquoise: Earned 5,000,000 credits (5,086,073)PSP LLR Gold: Earned 500,000 credits (686,232)SoB LLR Gold: Earned 500,000 credits (785,805)SR5 LLR Gold: Earned 500,000 credits (822,104)SGS LLR Turquoise: Earned 5,000,000 credits (5,095,282)TRP LLR Gold: Earned 500,000 credits (512,571)Woodall LLR Gold: Earned 500,000 credits (673,276)321 Sieve Ruby: Earned 2,000,000 credits (2,006,315)Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (944,431)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,813,253)PPS Sieve Double Silver: Earned 200,000,000 credits (336,786,578)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,446,797)AP 26/27 Sapphire: Earned 20,000,000 credits (33,132,385)GFN Sapphire: Earned 20,000,000 credits (24,806,170)PSA Sapphire: Earned 20,000,000 credits (20,457,430)
Message 88633 - Posted: 2 Oct 2015 | 10:58:31 UTC - in response to Message 88630.

The linux box seems to be doing it faster!


This seems to be fairly common, I'm guessing due to the smaller overhead in Linux than in Windows. How much faster though seems to depend on the application at the Project you are running.

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Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,124,499)Cullen LLR Turquoise: Earned 5,000,000 credits (5,149,818)ESP LLR Turquoise: Earned 5,000,000 credits (6,403,926)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,122,074)PPS LLR Sapphire: Earned 20,000,000 credits (44,500,703)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Jade: Earned 10,000,000 credits (17,319,914)SR5 LLR Jade: Earned 10,000,000 credits (18,479,395)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Jade: Earned 10,000,000 credits (15,154,737)Woodall LLR Turquoise: Earned 5,000,000 credits (5,715,464)321 Sieve Turquoise: Earned 5,000,000 credits (8,326,385)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (74,140,875)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (17,576,712)GFN Sapphire: Earned 20,000,000 credits (48,107,585)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 88634 - Posted: 2 Oct 2015 | 11:44:59 UTC - in response to Message 88633.

If it was a few % I wouldn't care, but it is easily more than 10% in the SGS units going through now. This isn't an entirely equal comparison. The linux box has a TRP unit on the other core which if anything might have some negative impact. The windows box still has HT enabled so I want to also try that disabled some time. Then it will be as equal as possible a comparison.

I did run some TRP on both, but less well controlled tests, and that also seems to be showing well over 10% improvement on linux.

I'm not giving up Windows for normal use, but if these results hold out in more testing I will try to switch to linux on as many boxes as I can.

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Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,124,499)Cullen LLR Turquoise: Earned 5,000,000 credits (5,149,818)ESP LLR Turquoise: Earned 5,000,000 credits (6,403,926)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,122,074)PPS LLR Sapphire: Earned 20,000,000 credits (44,500,703)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Jade: Earned 10,000,000 credits (17,319,914)SR5 LLR Jade: Earned 10,000,000 credits (18,479,395)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Jade: Earned 10,000,000 credits (15,154,737)Woodall LLR Turquoise: Earned 5,000,000 credits (5,715,464)321 Sieve Turquoise: Earned 5,000,000 credits (8,326,385)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (74,140,875)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (17,576,712)GFN Sapphire: Earned 20,000,000 credits (48,107,585)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 88646 - Posted: 2 Oct 2015 | 20:00:46 UTC - in response to Message 88634.

The speed increase wasn't due to linux, but our old friend hyper threading. More details at http://www.primegrid.com/forum_thread.php?id=6473&nowrap=true#88645

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (9,919,609)Cullen LLR Turquoise: Earned 5,000,000 credits (9,934,320)ESP LLR Turquoise: Earned 5,000,000 credits (9,909,084)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,921,052)PPS LLR Turquoise: Earned 5,000,000 credits (6,963,493)PSP LLR Turquoise: Earned 5,000,000 credits (5,089,560)SoB LLR Turquoise: Earned 5,000,000 credits (5,824,522)SR5 LLR Turquoise: Earned 5,000,000 credits (5,399,087)SGS LLR Turquoise: Earned 5,000,000 credits (5,382,538)TRP LLR Turquoise: Earned 5,000,000 credits (9,911,706)Woodall LLR Turquoise: Earned 5,000,000 credits (5,011,851)321 Sieve Jade: Earned 10,000,000 credits (15,289,207)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,073,495)GFN Emerald: Earned 50,000,000 credits (50,738,900)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 88655 - Posted: 2 Oct 2015 | 21:11:49 UTC - in response to Message 88628.

Problem 2: the processor is 2 cores 4 threads. But I'm seeing two LLR tasks wonder around, often going onto the same physical core instead of using separate cores.

Method 1. Start boinc only on required cores (assuming core 0 is "base", core 1 is HT "shadow", and so on):
taskset -c 0,2 /somewhere/boinc options

Changing behavior of running program (does not affect currently running crunchers, only new ones):
taskset -pc 0,2 `pidof boinc`

Method 2. Use background script which periodically checks for new LLR processes and pins every such process to free core. This is what I'm using. I wrote it quick and dirty but worksforme. I prefer this method because even if you've used taskset, some kind of background activity can cause Linux scheduler to put two LLR tasks on same physical core and stay this way for a long time. Pinning one process to one core will avoid this. You must edit path to Boinc directories (datadir), mask of allowed cores (free_cpus) and list of checked programs (pidlist).
#!/bin/bash datadir=~/.cache/boinc function run_process { pidlist=`pidof primegrid_llr \ primegrid_genefer_3_2_6_0_3.08_x86_64-pc-linux-gnu__cpuGFN \ primegrid_tpsieve_1.39_x86_64-pc-linux-gnu__cpuPPSsieve \ primegrid_sr2sieve_1.07_x86_64-pc-linux-gnu` free_cpus=(1 1 1 1 0 0 0 0) echo "------------- `date` ------------" todolist="" fail=0 for pid in $pidlist; do aff=`taskset -p $pid | cut -d " " -f 6` echo "pid=$pid mask=$aff" case $aff in 1) free_cpus[0]=0 ;; 2) free_cpus[1]=0 ;; 4) free_cpus[2]=0 ;; 8) free_cpus[3]=0 ;; 10) free_cpus[4]=0 ;; 20) free_cpus[5]=0 ;; 40) free_cpus[6]=0 ;; 80) free_cpus[7]=0 ;; 3|7|f|88) todolist+="$pid " ;; *) echo "Warning: strange affinity mask '$aff' or failed to get it" fail=1 ;; esac done if [[ $fail == 0 ]]; then echo "Todo: $todolist" for pid in $todolist; do for ((i=0; i<${#free_cpus[@]}; i++)); do if [[ ${free_cpus[$i]} == 1 ]]; then echo "Set PID $pid to CPU $i" free_cpus[$i]=0 taskset -pc $i $pid break fi done done else echo "Errors found, will not continue" fi } lastscan=0 while true; do now=`date +%s` for f in $datadir/slots/*/init_data.xml; do ts=`date +%s -r $f` # echo $now $f $ts if [[ $ts -ge $lastscan ]]; then run_process break fi done lastscan=$now sleep 30 done

Profile drsevrin
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Joined: 30 Dec 10
Posts: 10
ID: 79087
Credit: 122,170,520
RAC: 0
PPS LLR Bronze: Earned 10,000 credits (38,941)PSP LLR Amethyst: Earned 1,000,000 credits (1,796,404)SoB LLR Amethyst: Earned 1,000,000 credits (1,156,185)SGS LLR Bronze: Earned 10,000 credits (14,568)PPS Sieve Double Bronze: Earned 100,000,000 credits (111,028,677)GFN Turquoise: Earned 5,000,000 credits (8,132,365)
Message 90718 - Posted: 26 Dec 2015 | 3:41:29 UTC

Bumping, for what it's worth. I've had multiple GPU's running under SLI and Linux for several years now. (NVIDIA GTX 560's) One card failed, but the other soldiers on. It took a lot of tweaking driver settings for me to get GPU's running BOINC and other Cuda applications, but I finally got it working. I'm still on Ubuntu 12.04, and running NVIDIA driver 304.125.

northcup
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Joined: 7 Jan 12
Posts: 3
ID: 126247
Credit: 13,606,820
RAC: 0
TRP LLR Bronze: Earned 10,000 credits (18,931)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (52,425)PPS Sieve Jade: Earned 10,000,000 credits (11,491,739)AP 26/27 Bronze: Earned 10,000 credits (48,516)GFN Amethyst: Earned 1,000,000 credits (1,983,559)
Message 91032 - Posted: 9 Jan 2016 | 4:25:33 UTC - in response to Message 90718.

Hello All,
My experience. Linux Mint convinced me. It is slim and easy to use. Who is not afraid of the command line, has all possibilities. GPU (OpenCl and CUDA) computing runs with a NVIDIA GT730 with the latest drivers from NVIDA without problems. Unfortunately, the internal Intel graphics HD4600 is very difficult to install and I have so far failed to install OpenCL (beignet). Can someone help me there, perhaps? Greetings, Klaus

stream
Volunteer developer
Volunteer tester
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Joined: 1 Mar 14
Posts: 533
ID: 301928
Credit: 446,642,475
RAC: 2,532
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (9,919,609)Cullen LLR Turquoise: Earned 5,000,000 credits (9,934,320)ESP LLR Turquoise: Earned 5,000,000 credits (9,909,084)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,921,052)PPS LLR Turquoise: Earned 5,000,000 credits (6,963,493)PSP LLR Turquoise: Earned 5,000,000 credits (5,089,560)SoB LLR Turquoise: Earned 5,000,000 credits (5,824,522)SR5 LLR Turquoise: Earned 5,000,000 credits (5,399,087)SGS LLR Turquoise: Earned 5,000,000 credits (5,382,538)TRP LLR Turquoise: Earned 5,000,000 credits (9,911,706)Woodall LLR Turquoise: Earned 5,000,000 credits (5,011,851)321 Sieve Jade: Earned 10,000,000 credits (15,289,207)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,073,495)GFN Emerald: Earned 50,000,000 credits (50,738,900)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 91036 - Posted: 9 Jan 2016 | 8:22:09 UTC - in response to Message 91032.

Unfortunately, the internal Intel graphics HD4600 is very difficult to install and I have so far failed to install OpenCL (beignet). Can someone help me there, perhaps? Greetings, Klaus

I suggest to avoid it. It's not so hard to compile it from source; I've even played with it a little when I had no real GPU but finally decided to forget.

1. It's buggy - I reported few bugs which caused programs which I've tried, to fail. Two bugs were fixed according to my report, one program started to work occasionally (probably problem was found due to another bugreport) but last time when I tried, Genefer still failed some self-tests.
2. It's slow. Not a beignet problem, but Intel in general. As an real-life example, a production score of one (non-PG) application on my 4770K was 80 blocks per given amount of time. A cheap and cold GTX750ti does 950-1150 blocks on same PC.

northcup
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Joined: 7 Jan 12
Posts: 3
ID: 126247
Credit: 13,606,820
RAC: 0
TRP LLR Bronze: Earned 10,000 credits (18,931)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (52,425)PPS Sieve Jade: Earned 10,000,000 credits (11,491,739)AP 26/27 Bronze: Earned 10,000 credits (48,516)GFN Amethyst: Earned 1,000,000 credits (1,983,559)
Message 91083 - Posted: 10 Jan 2016 | 13:29:32 UTC - in response to Message 91036.
Last modified: 10 Jan 2016 | 13:30:41 UTC

@stream

Thank you for your assessment. It is an important point for my discussion with OpenCL / Intel. It is imho an indictment of Intel. The processor generation is already outdated before good drivers are developed. Greetings, Klaus

northcup
Send message
Joined: 7 Jan 12
Posts: 3
ID: 126247
Credit: 13,606,820
RAC: 0
TRP LLR Bronze: Earned 10,000 credits (18,931)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (52,425)PPS Sieve Jade: Earned 10,000,000 credits (11,491,739)AP 26/27 Bronze: Earned 10,000 credits (48,516)GFN Amethyst: Earned 1,000,000 credits (1,983,559)
Message 91202 - Posted: 14 Jan 2016 | 11:37:08 UTC - in response to Message 91036.

@stream

For your info (update)
Since 10 minutes count 2 GPUs on my workstation. :-) With Beignet 1.1.1 and a kernel update to 4.2.x BOINC recognizes the Intel GPU also. The performance is surprisingly good. The relationship with the NVIDIA GPU is about 1.8: 1

Message on Boinc-computer-tabs:

CPU
GenuineIntel
Intel(R) Core(TM) i5-4670T CPU @ 2.30GHz [Family 6 Model 60 Stepping 3]
(4 processors)

GPU
NVIDIA GeForce GT 730 (2044MB) OpenCL: 1.02, INTEL Intel(R) HD Graphics Haswell GT2 Desktop (2048MB) OpenCL: 1.02

Greets, Klaus

Message boards : Number crunching : BOINC on Linux

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