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Search: Posts Made By: UBR47K
Forum: Software 2021-01-04, 15:34
Replies: 76
Sticky: Prime95 v30.4
Views: 4,684
Posted By UBR47K
Using mprime here. You're right, the timings are...

Using mprime here. You're right, the timings are a bit different after another run.


I'm hitting another issue right now, mprime gets killed by OOM:

...
[Worker #4 Jan 4 15:24] M1277 curve 1...
Forum: Software 2021-01-04, 14:54
Replies: 76
Sticky: Prime95 v30.4
Views: 4,684
Posted By UBR47K
I'm noticing a small speed decrease with ECM on...

I'm noticing a small speed decrease with ECM on M1277 (even with PracSearch=1) compared to 30.3b6 on Haswell i5.

Can someone confirm this? (I'm using OutputIterations=30000000)
30.3b6:

M1277...
Forum: Factoring 2020-11-03, 11:21
Replies: 507
Views: 72,166
Posted By UBR47K
Euclid-Mullin EM46 C215 ECM

Log:
Using B1=260000000-260000000, B2=3178559884516, polynomial Dickson(30), sigma=3:957017298
Step 1 took 0ms
Step 2 took 493313ms
********** Factor found in step 2:...
Forum: GpuOwl 2020-10-14, 11:46
Replies: 195
Views: 12,322
Posted By UBR47K
No errors or retries during PRP. My Radeon VII...

No errors or retries during PRP.
My Radeon VII seems to generate correct PRP proofs, only this particular card is strange.


All proofs made with this Fury X are invalid.
Forum: GpuOwl 2020-10-14, 10:48
Replies: 195
Views: 12,322
Posted By UBR47K
another proof failure

https://www.mersenne.org/report_exponent/?exp_lo=108980089&full=1

This AMD Fury X card consistently fails to generate PRP proofs (but it seems to produce valid RES64).

Self verification fails:...
Forum: GpuOwl 2020-09-18, 07:41
Replies: 2,686
Views: 202,255
Posted By UBR47K
sent via PM

sent via PM
Forum: GpuOwl 2020-09-17, 18:36
Replies: 2,686
Views: 202,255
Posted By UBR47K
Hi, that is the first tested exponent from a...

Hi, that is the first tested exponent from a recently assembled computer (the GPU is a Fury X from a previous machine).

No significant changes have been made (I believe):


gpuowl path to...
Forum: Factoring 2020-02-15, 04:01
Replies: 507
Views: 72,166
Posted By UBR47K
step=41 C165 cofactor, A005265 (Product of smallest prime factor minus 1, Startvalue = 3) GNFS

To my disappointment (yes, I should have continued ECM efforts), the C165 cofactor of step 41 of the A005265 sequence:...
Forum: Software 2019-05-23, 13:02
Replies: 612
Views: 108,348
Posted By UBR47K
https://semver.org seems a good alternative.

https://semver.org seems a good alternative.
Forum: Software 2019-05-22, 14:37
Replies: 612
Views: 108,348
Posted By UBR47K
Linux distribution agnostic package

mprime's available now on https://flathub.org/apps/details/org.mersenne.mprime (with optional steps at https://github.com/flathub/org.mersenne.mprime) .


Can be kept up to date just like you'd do...
Forum: Software 2019-04-07, 18:08
Replies: 0
Views: 496
Posted By UBR47K
mprime as a flatpak for Linux

Hello,
I've tried to package mprime as a flatpak (https://github.com/sat3ll/mprime-flatpak) for an easier installation in a distro agnostic manner.

An extra feature this package has is the...
Forum: Factoring 2017-01-12, 00:11
Replies: 507
Views: 72,166
Posted By UBR47K
Euclid-Mullin startval=11, step=52 C246 ECM

Found prime factor of 47 digits: 50830983682533159438249232973710342249762685657
Found prime factor of 47 digits: 57151172622638849910198075432673869711189841643
Prime cofactor...
Forum: Factoring 2017-01-06, 05:35
Replies: 507
Views: 72,166
Posted By UBR47K
Euclid-Mullin startval=11, step=40 C157 GNFS

p71 factor: 19517626735352867635389210468481149987883287903681263858586951345548423
p87 factor: 145765666673838786830571566180051274833273484386617442632150398679510608792130669943771
Forum: Factoring 2016-12-17, 15:24
Replies: 507
Views: 72,166
Posted By UBR47K
Euclid-Mullin startval=11, step=38 C154 GNFS

p63 factor: 699768938507733740211461386134300809902285031508471351953148349
p92 factor: 10581731091483209842183701116711111843940449064595936322415831742451897917677283187068552463
Forum: Hardware 2016-08-24, 01:35
Replies: 10
Views: 458
Posted By UBR47K
Noctua U9S is about 125mm tall

Noctua U9S is about 125mm tall
Forum: GMP-ECM 2016-08-06, 01:18
Replies: 114
Views: 31,187
Posted By UBR47K
Try running with python2. That error happens when...

Try running with python2. That error happens when you try to run the script with python 3
Forum: GMP-ECM 2016-08-03, 06:14
Replies: 114
Views: 31,187
Posted By UBR47K
Is there anyway to specify B1 value when using...

Is there anyway to specify B1 value when using the "-resume" switch?
I'd like to use GMP-ECM for stage 2 with Prime95 stage 1 results.txt
Forum: Lone Mersenne Hunters 2016-07-30, 06:21
Replies: 1,774
Views: 174,781
Posted By UBR47K
UID: UBR47K/5820K-factoring, M1187803 has a...

UID: UBR47K/5820K-factoring, M1187803 has a factor: 180153864303424969999558424827024324050497 (P-1, B1=2500000)


k = 2^5 × 7 × 17 × 83 × 149 × 2087 × 2689 × 4999 × 36343 × 1254971 × 1258511
...
Forum: GPU Computing 2016-06-01, 07:10
Replies: 2
Views: 1,132
Posted By UBR47K
Nvidia 364.xx drivers returning incorrect results

Has anyone experienced getting wrong residues with Nvidia 364.xx with CUDALucas?
I recently went investigating for the reason why my Titan Z decided suddenly crapping wrong results out and the...
Forum: Marin's Mersenne-aries 2016-05-02, 01:30
Replies: 1,841
Views: 115,393
Posted By UBR47K
Requesting a TC on a Cudalucas result: ...

Requesting a TC on a Cudalucas result:

DoubleCheck=N/A,36833107,75,1
Forum: Marin's Mersenne-aries 2016-04-24, 01:18
Replies: 1,841
Views: 115,393
Posted By UBR47K
*sigh* Time to put that machine down. A few...

*sigh* Time to put that machine down.
A few notes on it might be of interest:
i7-4790K with 2x8GB Corsair Dominator 2400MHz RAM on an Asrock Z97 Fatality Professional Motherboard.
First few...
Forum: Marin's Mersenne-aries 2016-04-23, 09:13
Replies: 1,841
Views: 115,393
Posted By UBR47K
Requesting DC on DoubleCheck=40935859,74,1 ...

Requesting DC on

DoubleCheck=40935859,74,1


I have suspicions that I have a machine going bad.
Forum: Marin's Mersenne-aries 2016-04-12, 09:06
Replies: 1,841
Views: 115,393
Posted By UBR47K
Requesting double checks on: ...

Requesting double checks on:

Doublecheck=N/A,37767209,74,1
Doublecheck=N/A,37713733,74,1
Forum: Lone Mersenne Hunters 2016-04-06, 05:49
Replies: 1,774
Views: 174,781
Posted By UBR47K
M35210753 has a factor: 10176353483612315371063...

M35210753 has a factor: 10176353483612315371063 [TF:73:74*:mfakto 0.14-MGW cl_barrett15_82_gs_2]
73.107 bits
Forum: Lone Mersenne Hunters 2016-03-26, 02:26
Replies: 1,774
Views: 174,781
Posted By UBR47K
M79868531 has a factor:...

M79868531 has a factor: 10101962748952461002670427757775497 (P-1, B1=925000, B2=23125000, E=6)
112.96 bits

M36850673 has a factor: 2693201601654787419167 [TF:71:72*:mfaktc 0.21...
Showing results 1 to 25 of 66

 
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