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Message boards : General discussion : What cpu subprojects run better on older cpus?

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Profile sir sant
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Joined: 23 Apr 10
Posts: 80
ID: 59272
Credit: 980,558,073
RAC: 71,339
321 LLR Gold: Earned 500,000 credits (707,443)Cullen LLR Gold: Earned 500,000 credits (516,214)ESP LLR Gold: Earned 500,000 credits (702,908)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (114,788)PPS LLR Ruby: Earned 2,000,000 credits (2,684,540)PSP LLR Silver: Earned 100,000 credits (211,016)SoB LLR Gold: Earned 500,000 credits (629,206)SR5 LLR Gold: Earned 500,000 credits (547,283)SGS LLR Amethyst: Earned 1,000,000 credits (1,933,158)TRP LLR Amethyst: Earned 1,000,000 credits (1,029,655)Woodall LLR Gold: Earned 500,000 credits (626,458)321 Sieve Turquoise: Earned 5,000,000 credits (6,048,831)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (27,314,895)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,392,000)PPS Sieve Double Gold: Earned 500,000,000 credits (835,344,509)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,596,403)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,623,417)AP 26/27 Jade: Earned 10,000,000 credits (16,960,385)GFN Emerald: Earned 50,000,000 credits (69,574,965)
Message 102588 - Posted: 22 Dec 2016 | 21:25:30 UTC

So i was looking for some guide in the message boards, but i did not find any.
So i read some time ago somewhere that amd cpus are better at sieving and pretty much rubbish at everything else. So i set my old amd phenomII hexa to sieve and it was much faster at getting work done.

Now i'd like to use my old i3 2,2ghz laptop more efficiently. Have been running random subprojects on it: http://www.primegrid.com/results.php?hostid=490771 it's really slow.
What cpu subproject would run more efficiently on it? I am running 2wu-s at once (that's 50% cpu usage in boinc manager) cause it's a 2core 4thread cpu, and i think 1wu per 1core is the way to go?

If there is a thread about it somewhere, please feel free to point me that way.
If there is no thread about it, i'd appreciate it if somebody smart would create one, and not too complex or people like me wont get it.
Thanks in advance.

ManualCruncher53/NHoodMathematician
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Joined: 11 Jun 16
Posts: 85
ID: 449358
Credit: 186,646
RAC: 0
PPS LLR Bronze: Earned 10,000 credits (69,931)PSP LLR Bronze: Earned 10,000 credits (10,570)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (14,200)PPS Sieve Bronze: Earned 10,000 credits (47,194)AP 26/27 Bronze: Earned 10,000 credits (20,215)
Message 102589 - Posted: 22 Dec 2016 | 21:34:08 UTC - in response to Message 102588.

Why are you using a laptop? They are really bad about heat concerns. But as for the best tasks, I would recommend SGS, PPS, any sieve (not PPS, it takes over a day to complete) and possibly GFN-15. PPS-Mega will run in about half the time of PPS sieve. Absolutely not recommended are projects like SOB, GFN-19 or higher, or 321. Those are pretty much GPU-only tasks.
____________
Nathan Hood, Amateur Mathematician
Favorite Number-53
1146966*79^50005-1 is prime! (94897 decimal digits, P = 3) Time : 2930.129 sec.
PRIMES AS DOUBLE CHECKER:
29320766^8192+1 is prime!
24526702^8192+1 is prime!

Profile Crun-chiProject donor
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Credit: 58,110,256
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Eliminated 1 conjecture "k"Found 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Silver: Earned 100,000 credits (229,492)Cullen LLR Silver: Earned 100,000 credits (110,733)PPS LLR Turquoise: Earned 5,000,000 credits (7,172,084)PSP LLR Silver: Earned 100,000 credits (104,385)SoB LLR Silver: Earned 100,000 credits (106,117)SR5 LLR Silver: Earned 100,000 credits (139,802)SGS LLR Amethyst: Earned 1,000,000 credits (1,325,207)TRP LLR Gold: Earned 500,000 credits (626,755)Woodall LLR Silver: Earned 100,000 credits (122,944)321 Sieve Silver: Earned 100,000 credits (104,900)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,599)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (515,556)PPS Sieve Jade: Earned 10,000,000 credits (11,855,975)TRP Sieve (suspended) Silver: Earned 100,000 credits (255,612)AP 26/27 Ruby: Earned 2,000,000 credits (2,583,960)GFN Sapphire: Earned 20,000,000 credits (23,334,026)PSA Turquoise: Earned 5,000,000 credits (7,522,050)
Message 102590 - Posted: 22 Dec 2016 | 21:34:18 UTC - in response to Message 102588.

I3 is HT enabled CPU. So if you take 4 workunits, your time will be doubled. That is reason why for LLR is recommended settings to turn HT off.
On sieve it is different, so HT for sieve is good ( about 10% of increase in output)

On the other side I3 has small L3 cache, so best project would be SGS and Extended proth ( or Proth Mega) Anything above that will saturate RAM and CPu , and production will dropped down.
And for the last: laptops are not making to have such intense operation as LLR, heat will "kill" laptop in few months. ( especially old one as you have)
____________
314187728^131072+1 GENERALIZED FERMAT :)
93*10^1029523-1 REPDIGIT PRIME
31*332^367560+1 CRUS PRIME
Proud member of team Aggie The Pew. Go Aggie!

Profile DaveProject donor
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Posts: 2781
ID: 130544
Credit: 934,442,218
RAC: 29,067
Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (6,042,688)Cullen LLR Turquoise: Earned 5,000,000 credits (5,101,836)ESP LLR Turquoise: Earned 5,000,000 credits (5,303,526)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,202,873)PPS LLR Turquoise: Earned 5,000,000 credits (6,100,156)PSP LLR Turquoise: Earned 5,000,000 credits (5,513,728)SoB LLR Turquoise: Earned 5,000,000 credits (8,851,996)SR5 LLR Turquoise: Earned 5,000,000 credits (5,199,189)SGS LLR Turquoise: Earned 5,000,000 credits (5,100,018)TRP LLR Turquoise: Earned 5,000,000 credits (5,405,027)Woodall LLR Turquoise: Earned 5,000,000 credits (5,124,820)321 Sieve Jade: Earned 10,000,000 credits (10,003,334)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (268,250)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,502)PPS Sieve Double Silver: Earned 200,000,000 credits (306,761,000)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,133)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,970)AP 26/27 Double Bronze: Earned 100,000,000 credits (191,128,782)GFN Double Bronze: Earned 100,000,000 credits (133,333,389)PSA Double Silver: Earned 200,000,000 credits (200,000,001)
Message 102592 - Posted: 22 Dec 2016 | 22:08:31 UTC

I would avoid any LLR even/especially the short units like SGS as they are comparatively hot, & even more so with a laptop. TRP sv & GCW sv (maybe PPS sv if you're patient enough) sre more ideal but do keep an eye on core temps with e.g SpeedFan/CPU-Z.

Profile Michael GoetzProject donor
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Joined: 21 Jan 10
Posts: 13398
ID: 53948
Credit: 229,092,028
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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 the World's First Wall-Sun-Sun prime!!!Discovered 1 mega primeDiscovered 2 Wieferich primesDiscovered 2 Wall-Sun-Sun primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Turquoise: Earned 5,000,000 credits (5,009,577)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (15,527,037)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (2,276,330)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Jade: Earned 10,000,000 credits (10,061,196)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 (22,885,121)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 Jade: Earned 10,000,000 credits (10,118,303)GFN Emerald: Earned 50,000,000 credits (74,703,799)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 102599 - Posted: 23 Dec 2016 | 2:36:31 UTC

If the CPU has working AVX (i.e., Intel Sandy Bridge or later. No AMD at all.), run any of the LLR projects. Make sure you have hyperthreading turned off, or tell BOINC to use only 50% of the cores.

If your CPUs don't have AVX, or they're AMD CPUs, run the TRP Sieve or the GCW Sieve. With these projects, it's okay to use hyperthreading.

Another project you can use old CPUs on are the small GFN projects. GFN15, GFN16, and both GFN17s. AVX doesn't help with those, and GPUs aren't as efficient on the small GFN tasks, so it's a good place to use your non-AVX CPUs.
____________
My lucky number is 75898524288+1

Profile sir sant
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Joined: 23 Apr 10
Posts: 80
ID: 59272
Credit: 980,558,073
RAC: 71,339
321 LLR Gold: Earned 500,000 credits (707,443)Cullen LLR Gold: Earned 500,000 credits (516,214)ESP LLR Gold: Earned 500,000 credits (702,908)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (114,788)PPS LLR Ruby: Earned 2,000,000 credits (2,684,540)PSP LLR Silver: Earned 100,000 credits (211,016)SoB LLR Gold: Earned 500,000 credits (629,206)SR5 LLR Gold: Earned 500,000 credits (547,283)SGS LLR Amethyst: Earned 1,000,000 credits (1,933,158)TRP LLR Amethyst: Earned 1,000,000 credits (1,029,655)Woodall LLR Gold: Earned 500,000 credits (626,458)321 Sieve Turquoise: Earned 5,000,000 credits (6,048,831)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (27,314,895)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,392,000)PPS Sieve Double Gold: Earned 500,000,000 credits (835,344,509)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,596,403)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,623,417)AP 26/27 Jade: Earned 10,000,000 credits (16,960,385)GFN Emerald: Earned 50,000,000 credits (69,574,965)
Message 102782 - Posted: 28 Dec 2016 | 21:02:40 UTC

Thanx people, got my answer.

Message boards : General discussion : What cpu subprojects run better on older cpus?

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