Forum: Hardware
2022-08-13, 20:38
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Replies: 5
Views: 103
Welcome Scottie to the hunt and the forum.OP...
Welcome Scottie to the hunt and the forum.OP appears to be writing about prime95, not the other GIMPS applications capable of PRP. It's better to specify software, and include version, than leave...
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Forum: kriesel
2022-08-13, 20:25
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Replies: 12
Views: 9,003
Memory use during PRP
P-1, P+1, or ECM factoring may benefit from considerable allowed RAM use. Primality testing via PRP or LLDC has less need of RAM. For exponents up to ~120M, a few hundred MB per worker is enough....
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Forum: Operazione Doppi Mersennes
2022-08-13, 15:03
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Replies: 631
Views: 109,016
MM127 160P to 165P
[Fri Aug 12 13:54:33 2022]
UID: kriesel/asr3/rtx2080, no factor for MM127 in k range: 160P to 165P (186-bit factors) [mmff 0.28 mfaktc_barrett188_M127gs]
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Forum: Hardware
2022-08-13, 13:23
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Replies: 6
Views: 285
Core 2 duo e8200 (no on-chip power...
Core 2 duo e8200 (no on-chip power instrumentation) prime95 v30.7b9 Windows Vista
40.7 msec/iteration at 3.36M fft length, tdp 65W, 40700 * 3.328M/3.36M * 65 = 2,620,305. uJoule / iteration; ~30...
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Forum: Marin's Mersenne-aries
2022-08-12, 14:29
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Replies: 16
Views: 2,387
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Forum: Msieve
2022-08-10, 18:42
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Replies: 94
Views: 510
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Forum: Hardware
2022-08-10, 16:11
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Replies: 6
Views: 285
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Forum: Hardware
2022-08-09, 23:44
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Replies: 6
Views: 285
Lowest efficiency I've seen so far:
GPUs: ...
Lowest efficiency I've seen so far:
GPUs:
rx550's 10281 us/iter and 27.6 watts corresponds to a much higher 283,755.6 uJoule/iter
gtx1080 12700 us/iter * (62M/230M)^1.1 * 122watts = est 366,348....
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Forum: Hardware
2022-08-09, 22:38
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Replies: 6
Views: 285
Microjoules/iteration at 3.25M fft DC
Measuring wattage by GPU-Z for GPUs (board power), or HWMonitor for CPUs (package power), the best power performance I've seen for 3.25M fft PRP (just sampling some hardware here) are:
For CPUs,...
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Forum: Operazione Doppi Mersennes
2022-08-09, 12:57
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Replies: 502
Views: 80,047
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Forum: Marin's Mersenne-aries
2022-08-09, 12:38
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Replies: 16
Views: 2,387
Go for it. There's very little activity in...
Go for it. There's very little activity in 100Mdigit currently, judging by a recent review of https://www.mersenne.org/report_recent_results/ (27 TF, 1 P-1, 0 primality tests reported)
I've...
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Forum: Software
2022-08-09, 11:53
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Replies: 49
Views: 3,028
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Forum: Lounge
2022-08-08, 23:22
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Replies: 1,973
Views: 236,727
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Forum: Hobbies
2022-08-08, 19:23
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Replies: 49
Views: 4,308
For the honey locust shoots, it's unclear which...
For the honey locust shoots, it's unclear which are coming from the flush cut stump root system and which are from the pruned tree that remains. Grinding all the root system out is not feasible since...
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Forum: kriesel
2022-08-08, 15:39
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Replies: 88
Views: 30,076
In reference to...
In reference to https://mersenneforum.org/showpost.php?p=610925&postcount=10,174775 / 336180 ~0.5199 Please post the Pari script or PM it. Thanks for the effort to check the ballpark estimate. I...
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Forum: Hobbies
2022-08-08, 15:23
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Replies: 49
Views: 4,308
What's an asparagus picker? Have you tried a...
What's an asparagus picker? Have you tried a posthole digger (https://www.lowes.com/pd/CRAFTSMAN-9-in-Fiberglass-Handle-Post-Hole-Digger/1000752636), which would increase your effective reach if the...
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Forum: Software
2022-08-08, 15:01
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Replies: 7
Views: 238
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Forum: kriesel
2022-08-07, 17:48
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Replies: 9
Views: 3,197
Near-palindromic exponents
Near palindromes differ by one character from a palindrome. These will be more numerous than palindrome exponents. All the following concerns base-ten exponent representations.
Consider an...
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Forum: kriesel
2022-08-07, 17:06
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Replies: 32
Views: 31,053
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Forum: Marin's Mersenne-aries
2022-08-07, 14:31
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Replies: 41
Views: 4,423
Combined list update: Predict Mxx lacking...
Combined list update: Predict Mxx lacking completed DC, and dubious claims lacking completed DC, but within range of feasible P-1 factoring, yields 3 uncompleted exponents (for now). Current status...
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Forum: Marin's Mersenne-aries
2022-08-05, 18:14
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Replies: 17
Views: 73,846
Normally, yes, PRP=1,2,333044087...
Normally, yes, PRP=1,2,333044087 (https://www.mersenne.org/report_exponent/?exp_lo=333044087&full=1),-1 would be the way to go, not doublecheck.
But this is part of the small sample of 100Mdigit...
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Forum: Marin's Mersenne-aries
2022-08-05, 17:59
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Replies: 16
Views: 2,387
DoubleCheck=332196607...
DoubleCheck=332196607 (https://www.mersenne.org/report_exponent/?exp_lo=332196607&full=1),81,1 assigned ll 2021-02-13, last update 2021-02-13, zero progress
DoubleCheck=332209313...
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Forum: PrimeNet
2022-08-04, 16:41
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Replies: 3
Views: 281
(Seconding)
LL first tests are more likely...
(Seconding)
LL first tests are more likely to be in error than PRP with GEC. So DC of those early would be good.
DC by PRP with proof generation (of PRP or LL first test) is the preferred...
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Forum: Marin's Mersenne-aries
2022-08-04, 14:03
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Replies: 804
Views: 144,046
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Forum: Soap Box
2022-08-04, 13:38
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Replies: 390
Views: 19,765
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