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Message boards : News : Another New SR5 Mega Prime!

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Profile Michael GoetzProject donor
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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 (4,202,866)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 (2,012,222)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 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 (7,090,096)GFN Emerald: Earned 50,000,000 credits (64,594,991)PSA Jade: Earned 10,000,000 credits (10,597,947)
Message 130747 - Posted: 28 Jun 2019 | 20:11:13 UTC

On 23 June 2019, 14:39:48 UTC, PrimeGrid’s Sierpiński/Riesel Base 5 Problem project eliminated k=322498 by finding the mega prime:

322498*5^2800819-1

The prime is 1,957,694 digits long and enters Chris Caldwell's “The Largest Known Primes Database” ranked 63rd overall and is the largest known base 5 prime. 67 k’s now remain in the Riesel Base 5 problem.

The discovery was made by Jordan Romaidis of the United States using an Intel(R) Xeon(R) Gold 5120 CPU @ 2.20GHz with 96GB RAM running Microsoft Windows 10 Enterprise x64 Edition. This computer took 25 hours and 28 minutes to complete the primality test using multithreaded LLR. Jordan is a member of the San Francisco team.

The prime was verified on 24 June 2019, 20:59:33 UTC by Scott Brown of the United States using an AMD FX(tm)-8350 Eight-Core Processor with 16GB RAM running Microsoft Windows 10 Core x64 Edition. This computer took about 53 hours and 51 minutes to complete the primality test using multithreaded LLR. Scott is a member of the Aggie The Pew team.

For more details, please see the official announcement.

Profile Eudy SilvaProject donor
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Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Gold: Earned 500,000 credits (834,329)Cullen LLR Amethyst: Earned 1,000,000 credits (1,011,118)ESP LLR Amethyst: Earned 1,000,000 credits (1,022,307)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,004,746)PPS LLR Turquoise: Earned 5,000,000 credits (6,141,134)PSP LLR Gold: Earned 500,000 credits (742,121)SoB LLR Ruby: Earned 2,000,000 credits (2,113,239)SR5 LLR Ruby: Earned 2,000,000 credits (2,427,369)SGS LLR Amethyst: Earned 1,000,000 credits (1,162,202)TRP LLR Amethyst: Earned 1,000,000 credits (1,309,179)Woodall LLR Amethyst: Earned 1,000,000 credits (1,001,901)321 Sieve Amethyst: Earned 1,000,000 credits (1,036,805)Generalized Cullen/Woodall Sieve Amethyst: Earned 1,000,000 credits (1,005,331)PPS Sieve Emerald: Earned 50,000,000 credits (63,539,979)AP 26/27 Sapphire: Earned 20,000,000 credits (21,282,352)GFN Sapphire: Earned 20,000,000 credits (25,471,331)
Message 130748 - Posted: 28 Jun 2019 | 20:18:00 UTC
Last modified: 28 Jun 2019 | 20:18:47 UTC

Congratulations to the finder and to the DC !
____________
"Accidit in puncto, quod non contingit in anno."
Something that does not occur in a year may, perchance, happen in a moment.

Profile dannyridel
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ESP LLR Bronze: Earned 10,000 credits (25,105)PPS LLR Bronze: Earned 10,000 credits (26,741)SR5 LLR Bronze: Earned 10,000 credits (14,479)TRP LLR Bronze: Earned 10,000 credits (13,509)321 Sieve Bronze: Earned 10,000 credits (26,835)Generalized Cullen/Woodall Sieve Bronze: Earned 10,000 credits (30,033)PPS Sieve Silver: Earned 100,000 credits (205,631)GFN Bronze: Earned 10,000 credits (11,920)PSA Silver: Earned 100,000 credits (138,660)
Message 130754 - Posted: 29 Jun 2019 | 0:47:37 UTC - in response to Message 130747.
Last modified: 29 Jun 2019 | 0:48:07 UTC

The discovery was made by Jordan Romaidis of the United States using an Intel(R) Xeon(R) Gold 5120 CPU @ 2.20GHz with 96GB RAM running Microsoft Windows 10 Enterprise x64 Edition. This computer took 25 hours and 28 minutes to complete the primality test using multithreaded LLR.


96GB ram???

numbermaniac
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Credit: 4,314,989
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321 LLR Silver: Earned 100,000 credits (106,389)PPS LLR Gold: Earned 500,000 credits (534,798)SR5 LLR Silver: Earned 100,000 credits (105,157)SGS LLR Silver: Earned 100,000 credits (101,620)TRP LLR Silver: Earned 100,000 credits (105,612)321 Sieve Gold: Earned 500,000 credits (512,303)Generalized Cullen/Woodall Sieve Gold: Earned 500,000 credits (503,510)PPS Sieve Amethyst: Earned 1,000,000 credits (1,577,628)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (34,269)TRP Sieve (suspended) Bronze: Earned 10,000 credits (32,679)AP 26/27 Silver: Earned 100,000 credits (117,247)GFN Silver: Earned 100,000 credits (435,687)PSA Silver: Earned 100,000 credits (140,044)
Message 130758 - Posted: 29 Jun 2019 | 2:32:48 UTC - in response to Message 130754.

The discovery was made by Jordan Romaidis of the United States using an Intel(R) Xeon(R) Gold 5120 CPU @ 2.20GHz with 96GB RAM running Microsoft Windows 10 Enterprise x64 Edition. This computer took 25 hours and 28 minutes to complete the primality test using multithreaded LLR.


96GB ram???


Xeon Gold 5120 is a server CPU, so this is clearly a server with a lot of RAM. (14 cores and a 19.25 MB CPU cache!!)
____________
6603*2^1411654+1 — 424955 digit PPSE (DC)

Profile dannyridel
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Joined: 3 Feb 19
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ESP LLR Bronze: Earned 10,000 credits (25,105)PPS LLR Bronze: Earned 10,000 credits (26,741)SR5 LLR Bronze: Earned 10,000 credits (14,479)TRP LLR Bronze: Earned 10,000 credits (13,509)321 Sieve Bronze: Earned 10,000 credits (26,835)Generalized Cullen/Woodall Sieve Bronze: Earned 10,000 credits (30,033)PPS Sieve Silver: Earned 100,000 credits (205,631)GFN Bronze: Earned 10,000 credits (11,920)PSA Silver: Earned 100,000 credits (138,660)
Message 130773 - Posted: 29 Jun 2019 | 14:49:01 UTC - in response to Message 130758.

!!! Still it's impressive.
____________
JonDan School Services
GFN-13 DC: 159169396^8192+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

HonzaProject donor
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Discovered 5 mega primesEliminated 3 conjecture "k"sFound 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2018 Tour de Primes Mountain Stage2019 Tour de Primes largest primeFound 4 primes in the 2019 Tour de PrimesFound 1 mega prime in the 2019 Tour de PrimesFound 1 prime in the 2019 Tour de Primes Mountain Stage321 LLR Emerald: Earned 50,000,000 credits (50,556,284)Cullen LLR Emerald: Earned 50,000,000 credits (50,296,190)ESP LLR Sapphire: Earned 20,000,000 credits (46,235,100)Generalized Cullen/Woodall LLR Emerald: Earned 50,000,000 credits (50,309,119)PPS LLR Emerald: Earned 50,000,000 credits (86,138,861)PSP LLR Sapphire: Earned 20,000,000 credits (23,462,639)SoB LLR Emerald: Earned 50,000,000 credits (67,865,553)SR5 LLR Emerald: Earned 50,000,000 credits (50,320,316)SGS LLR Sapphire: Earned 20,000,000 credits (22,598,870)TPS LLR (retired) Bronze: Earned 10,000 credits (43,033)TRP LLR Emerald: Earned 50,000,000 credits (57,441,313)Woodall LLR Sapphire: Earned 20,000,000 credits (43,364,787)321 Sieve Sapphire: Earned 20,000,000 credits (28,170,142)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,142,109)Generalized Cullen/Woodall Sieve Emerald: Earned 50,000,000 credits (50,504,945)PPS Sieve Double Gold: Earned 500,000,000 credits (504,377,255)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,288,222)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,149,354)AP 26/27 Double Silver: Earned 200,000,000 credits (202,968,293)GFN Double Gold: Earned 500,000,000 credits (617,714,850)PSA Double Gold: Earned 500,000,000 credits (531,254,992)
Message 130798 - Posted: 30 Jun 2019 | 11:45:24 UTC - in response to Message 130758.

Xeon Gold 5120 is a server CPU, so this is clearly a server with a lot of RAM. (14 cores and a 19.25 MB CPU cache!!)

Yeah, and AVX-512 unit.

I've got 2 AVX-512 units in my Gold 6126, but running older Windows 2012 R2 so only FMA3 available for LLR :-(

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Profile Rick Reynolds
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Posts: 7062
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Credit: 3,958,630,759
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Discovered 1 mega primeFound 2 primes in the 2018 Tour de PrimesFound 2 primes in the 2019 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,148,880)Cullen LLR Ruby: Earned 2,000,000 credits (2,773,730)ESP LLR Ruby: Earned 2,000,000 credits (4,913,807)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (3,356,142)PPS LLR Jade: Earned 10,000,000 credits (14,148,757)PSP LLR Ruby: Earned 2,000,000 credits (2,084,850)SoB LLR Turquoise: Earned 5,000,000 credits (5,014,268)SR5 LLR Jade: Earned 10,000,000 credits (11,169,992)SGS LLR Turquoise: Earned 5,000,000 credits (6,132,465)TRP LLR Turquoise: Earned 5,000,000 credits (6,568,836)Woodall LLR Ruby: Earned 2,000,000 credits (3,612,313)321 Sieve Sapphire: Earned 20,000,000 credits (45,593,485)Cullen/Woodall Sieve (suspended) Double Bronze: Earned 100,000,000 credits (127,922,665)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (30,984,158)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,046,555,461)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,134,964)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,013,696)AP 26/27 Double Bronze: Earned 100,000,000 credits (107,790,423)GFN Double Bronze: Earned 100,000,000 credits (152,016,870)PSA Double Amethyst: Earned 1,000,000,000 credits (1,370,700,486)
Message 130816 - Posted: 1 Jul 2019 | 13:53:26 UTC

Congrats on the find!

Profile Crun-chiProject donor
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Eliminated 1 conjecture "k"Found 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Silver: Earned 100,000 credits (229,492)Cullen LLR Silver: Earned 100,000 credits (110,733)PPS LLR Ruby: Earned 2,000,000 credits (2,982,482)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 (1,073,792)TRP LLR Silver: Earned 100,000 credits (122,712)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 Gold: Earned 500,000 credits (515,556)PPS Sieve Jade: Earned 10,000,000 credits (11,340,212)TRP Sieve (suspended) Silver: Earned 100,000 credits (255,612)AP 26/27 Ruby: Earned 2,000,000 credits (2,575,874)GFN Sapphire: Earned 20,000,000 credits (23,152,487)PSA Turquoise: Earned 5,000,000 credits (7,522,050)
Message 130818 - Posted: 1 Jul 2019 | 16:42:04 UTC - in response to Message 130798.

Xeon Gold 5120 is a server CPU, so this is clearly a server with a lot of RAM. (14 cores and a 19.25 MB CPU cache!!)

Yeah, and AVX-512 unit.

I've got 2 AVX-512 units in my Gold 6126, but running older Windows 2012 R2 so only FMA3 available for LLR :-(



LLR command line: primegrid_cllr.exe -d -oDiskWriteTime=1 -oThreadsPerTest=4 llr.in
Using zero-padded AVX-512 FFT length 720K, Pass1=1152, Pass2=640, clm=1, 4 threads, a = 3
____________
271643232^131072+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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Found 2 primes in the 2018 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,008,573)Cullen LLR Turquoise: Earned 5,000,000 credits (5,005,909)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 (5,200,064)PSP LLR Turquoise: Earned 5,000,000 credits (5,021,564)SoB LLR Turquoise: Earned 5,000,000 credits (8,851,996)SR5 LLR Turquoise: Earned 5,000,000 credits (5,000,482)SGS LLR Ruby: Earned 2,000,000 credits (4,147,921)TRP LLR Ruby: Earned 2,000,000 credits (3,501,055)Woodall LLR Ruby: Earned 2,000,000 credits (3,007,050)321 Sieve Amethyst: Earned 1,000,000 credits (1,794,892)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (268,250)Generalized Cullen/Woodall Sieve Jade: Earned 10,000,000 credits (10,000,502)PPS Sieve Double Silver: Earned 200,000,000 credits (282,054,941)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 (100,003,605)GFN Double Bronze: Earned 100,000,000 credits (100,000,025)PSA Double Silver: Earned 200,000,000 credits (200,000,001)
Message 130819 - Posted: 1 Jul 2019 | 17:15:40 UTC - in response to Message 130818.

Xeon Gold 5120 is a server CPU, so this is clearly a server with a lot of RAM. (14 cores and a 19.25 MB CPU cache!!)

Yeah, and AVX-512 unit.

I've got 2 AVX-512 units in my Gold 6126, but running older Windows 2012 R2 so only FMA3 available for LLR :-(



LLR command line: primegrid_cllr.exe -d -oDiskWriteTime=1 -oThreadsPerTest=4 llr.in
Using zero-padded AVX-512 FFT length 720K, Pass1=1152, Pass2=640, clm=1, 4 threads, a = 3

Show-offs ;).

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Message boards : News : Another New SR5 Mega Prime!

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