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Message boards : Project Staging Area : pfgw - faster (then llr) for what project?

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Profile Crun-chiProject donor
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Joined: 25 Nov 09
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Credit: 58,103,842
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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 (7,165,669)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 54471 - Posted: 13 May 2012 | 23:42:42 UTC

Can someone tell me in what condition is pfgw faster then latest llr? Whatever project I try always llr was faster then pfgw. So I am little confused...
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314187728^131072+1 GENERALIZED FERMAT :)
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rogue
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PPS LLR Bronze: Earned 10,000 credits (31,229)PSA Jade: Earned 10,000,000 credits (18,533,435)
Message 54488 - Posted: 14 May 2012 | 12:46:10 UTC

They should be very close in speed, when comparing 32-bit to 32-bit or 64-bit to 64-bit. I've had reports of llr being much faster for some tests, but I do not know the reasons for that yet. My assumption is that pfgw's additional error checking is the reason, but I really don't know if that is true or not. I have intended to do some profiling to see if there is code in pfgw that is to causing the slow down. I haven't had time to do that.

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Joined: 25 Nov 09
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Credit: 58,103,842
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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 (7,165,669)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 54503 - Posted: 14 May 2012 | 20:08:44 UTC - in response to Message 54488.

Rogue, thanks for answer to my question. For me pfgw was always slower 10% then LLR, so I never use it, but I assume that is reason why that program exist...
____________
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!

rogue
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Joined: 8 Sep 07
Posts: 1195
ID: 12001
Credit: 18,565,548
RAC: 0
PPS LLR Bronze: Earned 10,000 credits (31,229)PSA Jade: Earned 10,000,000 credits (18,533,435)
Message 54507 - Posted: 14 May 2012 | 22:02:14 UTC

64-bit pfgw was normally faster than 32-bit llr for any tests that weren't base 2. pfgw can do PRP tests on almost any number and it can do primality tests on many forms that llr cannot, such as primorials and factorials.

Profile Crun-chiProject donor
Volunteer tester
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Joined: 25 Nov 09
Posts: 2980
ID: 50683
Credit: 58,103,842
RAC: 99,026
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 (7,165,669)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 54509 - Posted: 15 May 2012 | 3:32:22 UTC - in response to Message 54507.

64-bit pfgw was normally faster than 32-bit llr for any tests that weren't base 2. pfgw can do PRP tests on almost any number and it can do primality tests on many forms that llr cannot, such as primorials and factorials.


Maybe, but now 64 bit llr is available , and since 64 bit is 10% faster then 32 bit llr... :)
____________
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!

Message boards : Project Staging Area : pfgw - faster (then llr) for what project?

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