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Search: Posts Made By: kriesel
Forum: Software 2020-11-26, 06:56
Replies: 29
Views: 4,558
Posted By kriesel
Preceding post's output error occurs in...

Preceding post's output error occurs in results.txt but not console output. Don't know if that's due to Ernst's source or some wayward edit at my location.


Due to typos or batch script editing...
Forum: Miscellaneous Math 2020-11-26, 06:10
Replies: 4
Views: 74
Posted By kriesel
How does one get a suspected 26-megadigit prime...

How does one get a suspected 26-megadigit prime from RSA, which commonly uses keys in the 1024-bit to 4096-bit range? Especially in 2011, when 512-bit were apparently successfully attacked by...
Forum: Software 2020-11-25, 21:43
Replies: 29
Views: 4,558
Posted By kriesel
output bug with -mm n input

Searching in the interval k=[0, 16336320]
Each of 16 (p mod 60) passes will consist of 1 intervals of length 272272

Factor with k = 68745. This factor is a probable prime.
M(31) has 1...
Forum: Hardware 2020-11-25, 21:03
Replies: 109
Views: 5,933
Posted By kriesel
Sheesh, run the long cable, or temporarily...

Sheesh, run the long cable, or temporarily relocate the box. There are better uses for your time than battling wifi install on a case with 2 or 3 RJ45s, such as proving out F33 P-1 code or producing...
Forum: PrimeNet 2020-11-25, 20:44
Replies: 65
Views: 7,256
Posted By kriesel
You could try bumping the final bit level up to...

You could try bumping the final bit level up to 76. It needs to go there anyway. You'll get credit for the 74-75 and the 75-76, which is 6 parts out of 7of the work effort from 73 bits per exponent,...
Forum: Miscellaneous Math 2020-11-25, 19:43
Replies: 15
Views: 184
Posted By kriesel
First, study the subject. Learn the applicable...

First, study the subject. Learn the applicable number theory, and the relevant software offerings and their capabilities and limitations.

~10300000000+ small N ~2996,578,429-c. If c= 1, it's a...
Forum: Lounge 2020-11-25, 13:46
Replies: 144
Views: 16,636
Posted By kriesel
There is a known 42 bit factor for M13,029,749,...

There is a known 42 bit factor for M13,029,749, with trivially small P-1 bounds sufficient, or very brief TF. https://www.mersenne.ca/exponent/13029749
Oliver Kruse's PRP run in progress is a waste...
Forum: GpuOwl 2020-11-25, 05:21
Replies: 23
Views: 2,751
Posted By kriesel
gpuowl-win v7.2-21-g28dbf88

As usual, build-log.txt separate, everything else in the compressed file.
Forum: Science & Technology 2020-11-25, 01:26
Replies: 38
Views: 717
Posted By kriesel
Tuck the nose cone tip of one into an engine...

Tuck the nose cone tip of one into an engine nozzle of the next, to accommodate a few otherwise excess meters. https://en.wikipedia.org/wiki/Rocketdyne_F-1...
Forum: Science & Technology 2020-11-22, 14:10
Replies: 38
Views: 717
Posted By kriesel
That "call-back" was way earlier than reasonable...

That "call-back" was way earlier than reasonable to expect, unless assuming a nearby listening post.
Forum: Science & Technology 2020-11-21, 02:51
Replies: 38
Views: 717
Posted By kriesel
Quick, give the complete correlated load and...

Quick, give the complete correlated load and corrosion history of every portion of the structure, in ANSYS input compatible form.

...
Forum: GPU Computing 2020-11-21, 02:40
Replies: 88
Views: 18,736
Posted By kriesel
Look for patterns to the fails. If they're all...

Look for patterns to the fails. If they're all above 80 bits, it could perhaps be used in the 70s.
Forum: Hardware 2020-11-20, 23:06
Replies: 109
Views: 5,933
Posted By kriesel
Manual says there's a pad pair to short with a...

Manual says there's a pad pair to short with a screwdriver blade with power off.
Forum: Hardware 2020-11-20, 23:04
Replies: 109
Views: 5,933
Posted By kriesel
Don't know. There may be a reason why it was...

Don't know. There may be a reason why it was hidden away like that. Trace if possible. Or get something like...
Forum: Lounge 2020-11-20, 15:50
Replies: 4,137
Views: 264,069
Posted By kriesel
Thanks for prepaying your first 3 months and last...

Thanks for prepaying your first 3 months and last month. (Deposit is for damages first, then any remainder to unpaid rent.) If you would like to prepay half or all the rest of the year lease when...
Forum: kriesel 2020-11-19, 22:32
Replies: 4
Views: 1,875
Posted By kriesel
Mlucas builds

How I built Mlucas in WSL2 / Ubuntu 18.04 for multiple processor types
(rename the executable between builds to identify the flavor)
Note these are mostly untested.

basic x86-64 & presumably...
Forum: Hardware 2020-11-19, 21:48
Replies: 109
Views: 5,933
Posted By kriesel
Unplug, open case, check JF1...

Unplug, open case, check JF1 (https://www.mersenneforum.org/showpost.php?p=563263&postcount=62) by the main motherboard 24-pin power connector. I had the same won't-start issue after a Windows...
Forum: Lounge 2020-11-19, 16:28
Replies: 4,137
Views: 264,069
Posted By kriesel
Ah yes, that worked well when physical paper...

Ah yes, that worked well when physical paper checks were endorsed and stamped and returned to the writer after having served their purpose. Mailing a check, the effective payment date was often that...
Forum: FermatSearch 2020-11-19, 15:50
Replies: 57
Views: 2,605
Posted By kriesel
Sure, write me some error free code that runs in...

Sure, write me some error free code that runs in O(ln(n)) or faster and I'll try it.
The odds of n being prime ~1/ln(n), are very much against your assertion of primality for MMp51*.

Now could we...
Forum: Hardware 2020-11-19, 14:24
Replies: 109
Views: 5,933
Posted By kriesel
Some observations here: 1) Sometimes mine seems...

Some observations here:
1) Sometimes mine seems to get stuck during the BIOS initialization, requiring a power cycle to try again.
2) The sequence is interminable but the time window for F11, F12,...
Forum: FermatSearch 2020-11-17, 15:42
Replies: 57
Views: 2,605
Posted By kriesel
Or ~2; 1085 and 2285. 285 log102 =~85.794 There...

Or ~2; 1085 and 2285. 285 log102 =~85.794
There seems to be considerable uncertainty in the 1085 figure.
...
Forum: kriesel 2020-11-15, 19:38
Replies: 10
Views: 2,230
Posted By kriesel
Effect of number of workers continued 2

Additional processor types:
FMA3 capable 6-core i7-8750H (no code running on the IGP at the time)
Xeon Phi 7250 (68 cores in one socket) see also https://www.mersenneforum.org/showthread.php?t=25767
Forum: Homework Help 2020-11-15, 18:53
Replies: 5
Views: 383
Posted By kriesel
Six workers, six corresponding average times per...

Six workers, six corresponding average times per iteration at the stated fft length. The corresponding iterations/sec for each worker are 1000ms/sec / (average iteration time in ms). The total...
Forum: Hardware 2020-11-15, 16:41
Replies: 109
Views: 5,933
Posted By kriesel
Wasn't expecting this in a benchmark run; never...

Wasn't expecting this in a benchmark run; never seen it before. Occurrence of "INF".
First appearance at 18M and becomes more prominent as fft length increases. Some "15 second" benchmark timings...
Forum: Hardware 2020-11-15, 11:44
Replies: 109
Views: 5,933
Posted By kriesel
WSL2 install was a bust. The cpu lacks some...

WSL2 install was a bust. The cpu lacks some required virtualization support.

On Windows, I have gotten to where it will run prime95. Benchmarking with hyperthreading in prime95 does x2, x3, and...
Showing results 1 to 25 of 1000

 
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