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Message boards : Proth Prime Search : Linux v Windows

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Joined: 30 Jan 08
Posts: 3731
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Credit: 49,385,163
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321 LLR Gold: Earned 500,000 credits (550,585)Cullen LLR Gold: Earned 500,000 credits (668,541)ESP LLR Silver: Earned 100,000 credits (193,409)PPS LLR Ruby: Earned 2,000,000 credits (3,796,320)PSP LLR Gold: Earned 500,000 credits (521,137)SoB LLR Gold: Earned 500,000 credits (534,235)SR5 LLR Gold: Earned 500,000 credits (741,726)SGS LLR Amethyst: Earned 1,000,000 credits (1,044,407)TRP LLR Silver: Earned 100,000 credits (270,664)Woodall LLR Silver: Earned 100,000 credits (162,233)321 Sieve Bronze: Earned 10,000 credits (32,623)Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,307,669)PPS Sieve Sapphire: Earned 20,000,000 credits (22,766,584)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (620,950)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,002,904)AP 26/27 Silver: Earned 100,000 credits (171,036)GFN Turquoise: Earned 5,000,000 credits (5,319,121)PSA Gold: Earned 500,000 credits (675,622)
Message 15095 - Posted: 24 Apr 2009 | 10:36:33 UTC

Is there an advantage in running Proth searches under Linux rather than Window$?

I ask because I have two identical Gateway laptops (well not exactly a shift key fell off one of them) one runs 64 bit Ubuntu 9.04 (beta) and the other some species of 32 bit Vista. Both usually run Proth searches all day every day. If the Linux machine drops its wireless connection it needs a manual reconnection but on the other hand on account of the extra shift key I tend to use the Windoze one more for surfing the web when I am at home and not being savaged by noisome rats.

I have an RAC of 588 plus some carryover from when it was running Micro$haft OS from the Linux machine and 532 from the Bill Gates Superspeeder. I might say that the Linux machine is not running Wubuntu but proper native Linux.

Probably you can find out all you need about my computers from my profile but any probs just shout.

Cheers!

T

Scott BrownProject donor
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Joined: 17 Oct 05
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Discovered the World's First base 116 Generalized Cullen prime!!!Discovered 17 mega primesEliminated 7 conjecture "k"sDiscovered 1 Sophie Germain pairDiscovered 1 Fermat divisor2012 Tour de Primes highest prime count2012 Tour de Primes most Mountain Stage primes2015 Tour de Primes highest prime count2016 Tour de Primes highest prime countFound 23 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 2 primes in the 2018 Tour de Primes Mountain Stage2019 Tour de Primes highest prime countFound 22 primes in the 2019 Tour de Primes321 LLR Double Bronze: Earned 100,000,000 credits (110,931,288)Cullen LLR Double Bronze: Earned 100,000,000 credits (103,870,990)ESP LLR Double Bronze: Earned 100,000,000 credits (137,499,413)Generalized Cullen/Woodall LLR Double Bronze: Earned 100,000,000 credits (108,461,080)PPS LLR Double Silver: Earned 200,000,000 credits (466,133,723)PSP LLR Double Bronze: Earned 100,000,000 credits (126,863,612)SoB LLR Double Bronze: Earned 100,000,000 credits (135,747,083)SR5 LLR Double Silver: Earned 200,000,000 credits (201,224,339)SGS LLR Double Bronze: Earned 100,000,000 credits (162,580,085)TPS LLR (retired) Silver: Earned 100,000 credits (235,439)TRP LLR Double Bronze: Earned 100,000,000 credits (121,443,822)Woodall LLR Double Bronze: Earned 100,000,000 credits (101,447,725)321 Sieve Double Silver: Earned 200,000,000 credits (203,510,966)Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (83,794,448)Generalized Cullen/Woodall Sieve (suspended) Double Silver: Earned 200,000,000 credits (285,139,652)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,126,198,452)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Double Silver: Earned 200,000,000 credits (203,523,358)TRP Sieve (suspended) Double Silver: Earned 200,000,000 credits (201,489,157)AP 26/27 Double Bronze: Earned 100,000,000 credits (183,393,015)GFN Double Amethyst: Earned 1,000,000,000 credits (1,488,335,519)PSA Double Silver: Earned 200,000,000 credits (259,058,048)
Message 15096 - Posted: 24 Apr 2009 | 11:31:35 UTC - in response to Message 15095.

...on the other hand on account of the extra shift key I tend to use the Windoze one more for surfing the web ...


The extra usage of the windows machine almost certainly accounts for what is an essentially very small difference of about 50 credits per day. If you want to exploit a real difference, then you should sieve with the 64-bit OS...such tasks return at about 1.7x credit rate over 32-bit sieving.





____________
141941*2^4299438-1 is prime!


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321 LLR Gold: Earned 500,000 credits (550,585)Cullen LLR Gold: Earned 500,000 credits (668,541)ESP LLR Silver: Earned 100,000 credits (193,409)PPS LLR Ruby: Earned 2,000,000 credits (3,796,320)PSP LLR Gold: Earned 500,000 credits (521,137)SoB LLR Gold: Earned 500,000 credits (534,235)SR5 LLR Gold: Earned 500,000 credits (741,726)SGS LLR Amethyst: Earned 1,000,000 credits (1,044,407)TRP LLR Silver: Earned 100,000 credits (270,664)Woodall LLR Silver: Earned 100,000 credits (162,233)321 Sieve Bronze: Earned 10,000 credits (32,623)Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,307,669)PPS Sieve Sapphire: Earned 20,000,000 credits (22,766,584)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (620,950)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,002,904)AP 26/27 Silver: Earned 100,000 credits (171,036)GFN Turquoise: Earned 5,000,000 credits (5,319,121)PSA Gold: Earned 500,000 credits (675,622)
Message 15097 - Posted: 24 Apr 2009 | 12:06:21 UTC - in response to Message 15096.

Thanks Scott

50 credits a day difference implies both processors working fully on other matters an extra 2 hours a day on the Windows machine. I doubt I use it 2 hours a day and when I do it is for light surfing rather than game playing.

According to the stats page the Windows computer 92923 runs 98.48% of the time and while running BOINC takes 99.98% of the computing . I think therefore 98.46% of its cycles are running BOINC and until I whop John M’s ass (again) for him in the next challenge 98.46% of its time is doing Proth work.

The linux computer 102897 on the other hand runs 98.62% of the time and when it does it runs BOINC for 99.95% of the time and until I whop John M’s ass (again) for him in the next challenge 98.62% of its time is doing Proth work which is to say 98.62% of its cycles are running BOINC.

I would therefore expected the linux machine to have scored about 98.62/98.46 times more credit than the Windows machine which is much less than observed.

I don’t have a point merely an observation.

As for BOINC credit I agree that I could get more either here or elsewhere but I am not motivated by BOINC credit. I have no problem with people who legitimately crunch for credit and wish them much good fortune and happiness but for me the driving force is something else.

Again many thanks for the insight.

Cheers!

T

Scott BrownProject donor
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Joined: 17 Oct 05
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Discovered the World's First base 116 Generalized Cullen prime!!!Discovered 17 mega primesEliminated 7 conjecture "k"sDiscovered 1 Sophie Germain pairDiscovered 1 Fermat divisor2012 Tour de Primes highest prime count2012 Tour de Primes most Mountain Stage primes2015 Tour de Primes highest prime count2016 Tour de Primes highest prime countFound 23 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 2 primes in the 2018 Tour de Primes Mountain Stage2019 Tour de Primes highest prime countFound 22 primes in the 2019 Tour de Primes321 LLR Double Bronze: Earned 100,000,000 credits (110,931,288)Cullen LLR Double Bronze: Earned 100,000,000 credits (103,870,990)ESP LLR Double Bronze: Earned 100,000,000 credits (137,499,413)Generalized Cullen/Woodall LLR Double Bronze: Earned 100,000,000 credits (108,461,080)PPS LLR Double Silver: Earned 200,000,000 credits (466,133,723)PSP LLR Double Bronze: Earned 100,000,000 credits (126,863,612)SoB LLR Double Bronze: Earned 100,000,000 credits (135,747,083)SR5 LLR Double Silver: Earned 200,000,000 credits (201,224,339)SGS LLR Double Bronze: Earned 100,000,000 credits (162,580,085)TPS LLR (retired) Silver: Earned 100,000 credits (235,439)TRP LLR Double Bronze: Earned 100,000,000 credits (121,443,822)Woodall LLR Double Bronze: Earned 100,000,000 credits (101,447,725)321 Sieve Double Silver: Earned 200,000,000 credits (203,510,966)Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (83,794,448)Generalized Cullen/Woodall Sieve (suspended) Double Silver: Earned 200,000,000 credits (285,139,652)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,126,198,452)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Double Silver: Earned 200,000,000 credits (203,523,358)TRP Sieve (suspended) Double Silver: Earned 200,000,000 credits (201,489,157)AP 26/27 Double Bronze: Earned 100,000,000 credits (183,393,015)GFN Double Amethyst: Earned 1,000,000,000 credits (1,488,335,519)PSA Double Silver: Earned 200,000,000 credits (259,058,048)
Message 15102 - Posted: 24 Apr 2009 | 14:20:17 UTC - in response to Message 15097.


50 credits a day difference implies both processors working fully on other matters an extra 2 hours a day on the Windows machine. I doubt I use it 2 hours a day and when I do it is for light surfing rather than game playing.


If you are using IE, then light surfing might actually cause a real drag. BOINC tasks will still be running full tilt, but the percent of a core that a particular task gets will be less than full. For example, I have noticed that IE grabs 2% to 10% of a core every few seconds simply by being open (in use it gets much higher)--which is one of many reasons why I use Mozilla. If it zaps, on average, about 8% of a core, then there is your 2 hours per day (assuming a 24/7 cruncher). Also, since the crunching task remains active (just at a lower percentage), the overall % run time reported by BOINC won't be affected much.

If you aren't using IE, you might look for other windows tasks/services that are on and pulling small percentages regularly (windows apps are very bad at this compared to Linux).




____________
141941*2^4299438-1 is prime!


Profile [SG]Puzzle-PeterProject donor
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Discovered the World's First base 68 Generalized Cullen prime!!!Eliminated 4 conjecture "k"s321 LLR Gold: Earned 500,000 credits (517,694)Cullen LLR Bronze: Earned 10,000 credits (22,649)PPS LLR Ruby: Earned 2,000,000 credits (3,716,757)PSP LLR Amethyst: Earned 1,000,000 credits (1,255,162)SoB LLR Amethyst: Earned 1,000,000 credits (1,529,355)SGS LLR Bronze: Earned 10,000 credits (79,385)TRP LLR Bronze: Earned 10,000 credits (42,673)Woodall LLR Silver: Earned 100,000 credits (360,820)321 Sieve Bronze: Earned 10,000 credits (21,641)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,449,647)PPS Sieve Ruby: Earned 2,000,000 credits (4,110,585)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (75,714)TRP Sieve (suspended) Bronze: Earned 10,000 credits (54,880)AP 26/27 Bronze: Earned 10,000 credits (42,894)PSA Emerald: Earned 50,000,000 credits (78,365,420)
Message 15104 - Posted: 24 Apr 2009 | 18:10:43 UTC - in response to Message 15097.

... but for me the driving force is something else.


It's rats digging their sharp teeth into their owners toes when he doesn't provide fresh new primes to feed on. Strange, but a rather powerful means of motivation.
____________
There are only 10 kinds of people - those who understand binary and those who don't

Profile ~~~(,__,)^'>Project donor
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Joined: 30 Jan 08
Posts: 3731
ID: 18322
Credit: 49,385,163
RAC: 0
321 LLR Gold: Earned 500,000 credits (550,585)Cullen LLR Gold: Earned 500,000 credits (668,541)ESP LLR Silver: Earned 100,000 credits (193,409)PPS LLR Ruby: Earned 2,000,000 credits (3,796,320)PSP LLR Gold: Earned 500,000 credits (521,137)SoB LLR Gold: Earned 500,000 credits (534,235)SR5 LLR Gold: Earned 500,000 credits (741,726)SGS LLR Amethyst: Earned 1,000,000 credits (1,044,407)TRP LLR Silver: Earned 100,000 credits (270,664)Woodall LLR Silver: Earned 100,000 credits (162,233)321 Sieve Bronze: Earned 10,000 credits (32,623)Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,307,669)PPS Sieve Sapphire: Earned 20,000,000 credits (22,766,584)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (620,950)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,002,904)AP 26/27 Silver: Earned 100,000 credits (171,036)GFN Turquoise: Earned 5,000,000 credits (5,319,121)PSA Gold: Earned 500,000 credits (675,622)
Message 15465 - Posted: 7 May 2009 | 14:57:27 UTC - in response to Message 15102.

Scott

Many thanks for this. I am sorry not to have replied sooner but life has been strange just now.

I rather think that you are right when you say that Windows is off with the fairies doing other things. I'm now running the Windows laptop using ubuntu from a partition (excuse me if I get the terms wrong) and it will be interesting to see how it compares with the alternative computer with only linux. Then I'm going to try the version of linux you can run from a memory stick.

Puzzle-Peter

Usually it is accidental claws rather than deliberate teeth that are the problem but I've just had a rat sitting on my head which is off putting enough bearing in mind the usual bladder control (or lack thereof of a rat) but on purpose she is pulling the hairs out. When you get to my age every one is precious.

Profile [SG]Puzzle-PeterProject donor
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Joined: 14 Jun 08
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Credit: 92,652,187
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Discovered the World's First base 68 Generalized Cullen prime!!!Eliminated 4 conjecture "k"s321 LLR Gold: Earned 500,000 credits (517,694)Cullen LLR Bronze: Earned 10,000 credits (22,649)PPS LLR Ruby: Earned 2,000,000 credits (3,716,757)PSP LLR Amethyst: Earned 1,000,000 credits (1,255,162)SoB LLR Amethyst: Earned 1,000,000 credits (1,529,355)SGS LLR Bronze: Earned 10,000 credits (79,385)TRP LLR Bronze: Earned 10,000 credits (42,673)Woodall LLR Silver: Earned 100,000 credits (360,820)321 Sieve Bronze: Earned 10,000 credits (21,641)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,449,647)PPS Sieve Ruby: Earned 2,000,000 credits (4,110,585)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (75,714)TRP Sieve (suspended) Bronze: Earned 10,000 credits (54,880)AP 26/27 Bronze: Earned 10,000 credits (42,894)PSA Emerald: Earned 50,000,000 credits (78,365,420)
Message 15466 - Posted: 7 May 2009 | 15:02:12 UTC - in response to Message 15465.

When you get to my age every one is precious.


Well, my hairline started to recede at age 25, so you don't have to be very old. Anyway, you're as old as you feel and I'm sure running after the rats is keeping you young.
____________
There are only 10 kinds of people - those who understand binary and those who don't

Message boards : Proth Prime Search : Linux v Windows

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