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Search: Posts Made By: kriesel
Forum: kriesel 2022-11-25, 16:55
Replies: 7
Views: 5,603
Posted By kriesel
Dobri's thread

There are numerous posts in a blog thread (https://mersenneforum.org/showthread.php?t=28129) created by Dobri regarding various numerical properties of exponents of known Mersenne primes, and lists...
Forum: Dobri 2022-11-24, 12:33
Replies: 80
Views: 33,992
Posted By kriesel
A small update Will you be updating previous...

A small update
Will you be updating previous posts occasionally, as factoring, primality testing, and verification progress?
Forum: kriesel 2022-11-24, 09:44
Replies: 18
Views: 719
Posted By kriesel
What is truly remarkable is that gpuowl,...

What is truly remarkable is that gpuowl, developed in Linux for OpenCL on AMD GPUs, is more reliable at LL on NVIDIA GPUs in Windows or Linux, (usually), than CUDALucas, while also being...
Forum: Marin's Mersenne-aries 2022-11-23, 05:15
Replies: 53
Views: 13,570
Posted By kriesel
Here's one we would not have gotten with ordinary...

Here's one we would not have gotten with ordinary bounds, and its factor is 102 bits.

https://www.mersenne.ca/exponent/85408633
Forum: PrimeNet 2022-11-23, 01:37
Replies: 5
Views: 219
Posted By kriesel
This might be applicable:...

This might be applicable: https://www.mersenneforum.org/showpost.php?p=524873&postcount=24
Check your HD for save files in old folders, and trash can / recycle bin / whatever.
Forum: PrimeNet 2022-11-23, 01:16
Replies: 5
Views: 219
Posted By kriesel
There's part of the problem. It does NOT upload...

There's part of the problem.
It does NOT upload snapshots of saved work in progress to the PrimeNet server. That is, the save files from which you may resume are never uploaded, they stay local. If...
Forum: Marin's Mersenne-aries 2022-11-22, 14:14
Replies: 53
Views: 13,570
Posted By kriesel
And another 40: ...

And another 40:
Pfactor=837BEA1188C8B961253F446D330F6518,1,2,86504189,-1,77,1
Pfactor=74A23838332AD8C4DAA1D5C46134EC0C,1,2,86504203,-1,77,1...
Forum: Operazione Doppi Mersennes 2022-11-21, 18:20
Replies: 642
Sticky: Results
Views: 114,582
Posted By kriesel
[Mon Oct 24 00:40:54 2022] UID:...

[Mon Oct 24 00:40:54 2022]
UID: kriesel/emu/gtx1650, no factor for MM127 in k range: 195P to 200P (186-bit factors) [mmff 0.28 mfaktc_barrett188_M127gs]
Forum: Operazione Doppi Mersennes 2022-11-21, 16:43
Replies: 523
Sticky: Reservations
Views: 87,735
Posted By kriesel
Reserving MMFactor=127,260e15,265e15

Reserving
MMFactor=127,260e15,265e15
Forum: GpuOwl 2022-11-21, 15:44
Replies: 2,866
Views: 438,749
Posted By kriesel
No purchase cost, and no utility cost, but higher...

No purchase cost, and no utility cost, but higher end user time cost, is a tradeoff that may be very palatable for some with limited funds or cooling capacity. Plus it offers a try-before-you-buy...
Forum: Operazione Doppi Mersennes 2022-11-21, 14:51
Replies: 523
Sticky: Reservations
Views: 87,735
Posted By kriesel
Reserving MMFactor=127,255e15,260e15

Reserving
MMFactor=127,255e15,260e15
Forum: Operazione Doppi Mersennes 2022-11-21, 12:25
Replies: 523
Sticky: Reservations
Views: 87,735
Posted By kriesel
Reserving MMFactor=127,250e15,255e15

Reserving
MMFactor=127,250e15,255e15
Forum: Marin's Mersenne-aries 2022-11-21, 05:55
Replies: 53
Views: 13,570
Posted By kriesel
Took another 40: ...

Took another 40:
Pfactor=8C12108151136288EF6A981F67A6A37A,1,2,86501669,-1,77,1
Pfactor=0E01FE7F3197A1F2FD8C8474FFD15914,1,2,86501743,-1,77,1...
Forum: GpuOwl 2022-11-21, 05:17
Replies: 2,866
Views: 438,749
Posted By kriesel
Google Colab free used to offer 4 different...

Google Colab free used to offer 4 different models of Tesla. Current state of the art gear will eventually be resold-used-for-a-fraction-of-list.

Or buy a used rack style server with a row of...
Forum: GpuOwl 2022-11-18, 15:46
Replies: 2,866
Views: 438,749
Posted By kriesel
It's not about blame. It's about promoting...

It's not about blame. It's about promoting understanding and efficiency. Waste is the enemy. (That no one will ever be assigned that exponent for primality testing is a feature in one respect. If...
Forum: GpuOwl 2022-11-18, 12:35
Replies: 2,866
Views: 438,749
Posted By kriesel
Stop the primality test on 77 936867...

Stop the primality test on 77 936867 (https://www.mersenne.org/report_exponent/?exp_lo=77936867&exp_hi=&full=1) = 1447 × 53861

It's so easily determined composite (not-prime), there isn't even a...
Forum: GpuOwl 2022-11-18, 05:57
Replies: 2,866
Views: 438,749
Posted By kriesel
At 24 GiB GPU ram, P-1 may be the best FP64 use...

At 24 GiB GPU ram, P-1 may be the best FP64 use for it. Gpuowl or any, stage 2 likes big ram.
Forum: GPU Computing 2022-11-18, 04:02
Replies: 28
Views: 2,277
Posted By kriesel
Sounds excessive to me; GTX 1070 are 1:32 SP/DP...

Sounds excessive to me; GTX 1070 are 1:32 SP/DP so 76 bits is enough.

https://www.mersenne.ca/exponent/96095581 shows a 4 bit differential, 71 for CPU, 75 bits for GPUs.
Forum: Lounge 2022-11-17, 21:34
Replies: 2,015
RIP
Views: 262,761
Posted By kriesel
Wow, had no idea. And "living well is the best...

Wow, had no idea. And "living well is the best revenge" seems apt here.
Forum: GpuOwl 2022-11-17, 02:07
Replies: 2,866
Views: 438,749
Posted By kriesel
Run the selftest. Do you get this? Starting...

Run the selftest.
Do you get this?
Starting self test M57885161 fft length = 3200K
Iteration 10000 / 57885161, 0x76c27556683cd84d, 3200K, CUDALucas v2.06beta, error = 0.11133, real: 0:27, 2.6851...
Forum: Marin's Mersenne-aries 2022-11-16, 20:20
Replies: 53
Views: 13,570
Posted By kriesel
On my NUMA dual-Xeon system, things had gotten...

On my NUMA dual-Xeon system, things had gotten odd, with dozens of s1 completed waiting for s2 on worker 2.
This might have been due to running two 100Mdigit+ P-1s on worker 1.
Putting a DC...
Forum: Information & Answers 2022-11-16, 18:53
Replies: 3
Views: 517
Posted By kriesel
Save your files, in case the other run does not...

Save your files, in case the other run does not complete, or completes but fails to upload a proof file, or fails the Cert run.
Forum: Marin's Mersenne-aries 2022-11-16, 18:31
Replies: 53
Views: 13,570
Posted By kriesel
Yes. Well, it optimizes the bounds selection...

Yes. Well, it optimizes the bounds selection given projected odds of finding a factor versus many bounds values and run time estimates for P-1 and PRP and allowed ram usage, for maximum expected...
Forum: GpuOwl 2022-11-16, 18:29
Replies: 2,866
Views: 438,749
Posted By kriesel
CUDALucas might be working right, or just not...

CUDALucas might be working right, or just not detecting errors. (It lacks the Jacobi check, which only detects 50% of errors that elude other checks such as round-off error.) Please only run DC...
Forum: GpuOwl 2022-11-16, 01:13
Replies: 2,866
Views: 438,749
Posted By kriesel
Does it? Maybe you could help this struggling...

Does it? Maybe you could help this struggling user with a 4090 (https://mersenneforum.org/showthread.php?t=28241&highlight=gpuowl)?
Showing results 1 to 25 of 1000

 
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