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Search: Posts Made By: kriesel
Forum: Hardware 2020-11-30, 04:23
Replies: 134
Views: 6,646
Posted By kriesel
My temp & turbo reports were also with the...

My temp & turbo reports were also with the motherboard-side cover off. Two fans draw air through the big radiator above them.
The lines from block on the cpu to radiator cross through the space...
Forum: Hardware 2020-11-29, 17:51
Replies: 134
Views: 6,646
Posted By kriesel
You've been wanting to upgrade your power supply...

You've been wanting to upgrade your power supply to a platinum rated with extra power to operate at top efficiency, anyway, right?
Forum: kriesel 2020-11-29, 16:24
Replies: 0
Views: 28
Posted By kriesel
Xeon Phi

Draft/placeholder, please wait.
This will be a reference thread. Don't post comments here. Post comments in a discussion thread.


Part of this was originally posted at...
Forum: Miscellaneous Math 2020-11-29, 14:54
Replies: 32
Views: 3,525
Posted By kriesel
This (non sequitur to our collective debunking of...

This (non sequitur to our collective debunking of the dubious claim that 2102589933 was prime) has been trial factored to 125 bits in Ernst's Mfactor program with no factor found. Its odds of being...
Forum: Miscellaneous Math 2020-11-29, 14:39
Replies: 26
Views: 3,460
Posted By kriesel
TF on M97600541752017987211 was taken to 117 bits...

TF on M97600541752017987211 was taken to 117 bits depth with Ernst's Mfactor, and no factor found. See https://www.mersenneforum.org/showpost.php?p=512904&postcount=5
Forum: Hardware 2020-11-29, 12:03
Replies: 134
Views: 6,646
Posted By kriesel
7120A needs: PCIe socket (I think any flavor) ...

7120A needs:
PCIe socket (I think any flavor)
2 slots width
power connectors for 300W TDP: 75W PCIe slot + 75W 6-pin connector +150W 8pin connector
PCIe support for >4GB addressing in the system...
Forum: Hardware 2020-11-28, 14:09
Replies: 134
Views: 6,646
Posted By kriesel
P means passive cooling; it's designed to go in a...

P means passive cooling; it's designed to go in a server package that pushes air through it lengthwise. So be prepared to come up with some sort of custom HVAC solution. (3d print an adapter?) Or...
Forum: Hardware 2020-11-28, 12:25
Replies: 134
Views: 6,646
Posted By kriesel
Windows 10 & prime95: Cpuid HWMonitor provides...

Windows 10 & prime95:
Cpuid HWMonitor provides no core temp output
Cpuid HWInfo crashes after displaying some cpu loadings
CoreTemp https://www.alcpu.com/CoreTemp/ runs out of screen height,...
Forum: Software 2020-11-28, 01:17
Replies: 484
Sticky: Prime95 v30.3
Views: 37,058
Posted By kriesel
Thanks. Event viewer is showing a lot of these...

Thanks.
Event viewer is showing a lot of these errors in system log.
The device, \Device\Harddisk0\DR0, has a bad block.
Kinda poor since it's only ~3-4 years old and has led a sheltered life.
...
Forum: kriesel 2020-11-27, 23:24
Replies: 4
Views: 47
Posted By kriesel
Poor-man's multithreading approximation

Launching separate processes for separate pass numbers with output redirection to pass-specific files permits using multiple cores on Windows. If there's a system crash before the processes complete...
Forum: kriesel 2020-11-27, 23:04
Replies: 4
Views: 47
Posted By kriesel
Linux builds

These were built on Ubuntu 18.04 / WSL on a Windows 10 Pro x64 i7-8750H system. See the mfactor bits table attached to post one of this thread.


Top of reference tree:...
Forum: kriesel 2020-11-27, 22:58
Replies: 4
Views: 47
Posted By kriesel
960-pass Windows builds

These were built using msys2 on a Windows 7 X64 Pro dual-Xeon E5645 system. They are single threaded because that's all that build approach supports. The higher pass count is somewhat more...
Forum: kriesel 2020-11-27, 22:57
Replies: 4
Views: 47
Posted By kriesel
16-pass Windows builds

These were built using msys2 on a Windows 7 X64 Pro dual-Xeon E5645 system. They are single threaded because that's all that build approach supports.
Differing number of words allows for fast runs...
Forum: kriesel 2020-11-27, 22:51
Replies: 4
Views: 47
Posted By kriesel
Mfactor-specific thread

This is a thread specific to Ernst Mayer's mfactor program. And if/when it matters, to the cpu-oriented builds of it. In most cases, GIMPS trial factoring should be performed on gpus using mfaktc or...
Forum: Software 2020-11-27, 22:18
Replies: 484
Sticky: Prime95 v30.3
Views: 37,058
Posted By kriesel
I restarted it multiple times after multiple...

I restarted it multiple times after multiple crashes, and only the fourth try worked.
System has not yet been up for 16 days.
This (https://www.stanislavs.org/helppc/dos_error_codes.html) says 23...
Forum: Software 2020-11-27, 20:24
Replies: 484
Sticky: Prime95 v30.3
Views: 37,058
Posted By kriesel
V30.3b6 crash instead of completing exponent

[Nov 27 14:15] Worker starting
[Nov 27 14:15] Setting affinity to run worker on CPU core #1
[Nov 27 14:15] Setting affinity to run helper thread 1 on CPU core #2
[Nov 27 14:15] Resuming Gerbicz...
Forum: Lounge 2020-11-27, 18:53
Replies: 3
Views: 139
Posted By kriesel
All of it. Usual would be 12 lb turkey, stuffing,...

All of it. Usual would be 12 lb turkey, stuffing, cranberries, green bean casserole, yams, beets, baked potato, lettuce salad, jello with fruit and mini marshmallows in it, black olives, corn bread...
Forum: PrimeNet 2020-11-27, 18:20
Replies: 14
Views: 340
Posted By kriesel
Just to be clear, all functional GIMPS software...

Just to be clear, all functional GIMPS software contributions and their authors are welcome and respected. Cllucas used to be the best primality testing software for Mersennes on OpenCL. Eventually...
Forum: Lounge 2020-11-27, 16:27
Replies: 146
Views: 17,072
Posted By kriesel
verified composite...

verified composite (https://www.mersenne.org/report_exponent/?exp_lo=103305173&exp_hi=&full=1) (Cert by Ben Delo). The other recently posted M52 predictions have also been primality tested (but not...
Forum: Lounge 2020-11-27, 16:15
Replies: 1,146
Views: 64,158
Posted By kriesel
A long article on present and lasting...

A long article on present and lasting psychological effects of the current pandemic and responses to it. https://www.thecut.com/2020/11/covid-19-pandemic-kids-mental-health.html
Forum: kriesel 2020-11-27, 15:01
Replies: 5
Views: 1,932
Posted By kriesel
Mlucas builds for Windows

Building for Windows in msys2 is similar to building for Linux or WSL, except:
remove -DUSE_THREADS and -lpthread for Windows single-threaded end use.
How I built or attempted in msys2 for Windows...
Forum: PrimeNet 2020-11-27, 14:30
Replies: 14
Views: 340
Posted By kriesel
Climbing the learning curve can provide many...

Climbing the learning curve can provide many hours of enjoyable distraction.
Start through https://www.mersenneforum.org/showthread.php?t=24607. Bookmark it for later reference.
For software after...
Forum: PrimeNet 2020-11-27, 14:13
Replies: 14
Views: 340
Posted By kriesel
FOUR known factors, known for 15 to 39 years....

FOUR known factors, known for 15 to 39 years. Mfactor can find the smallest in under a minute on one core of an old slow Xeon E5645.
Searching in the interval k=[0, 16336320]
Each of 16 (p mod 60)...
Forum: PrimeNet 2020-11-27, 03:49
Replies: 14
Views: 340
Posted By kriesel
What's the exponent? What's the reason?...

What's the exponent? What's the reason? (Hopefully not "My social security number or bank account number is prime so I wondered about the corresponding Mersenne number")
Forum: PrimeNet 2020-11-27, 02:57
Replies: 14
Views: 340
Posted By kriesel
To expand on Viliam's point about the exponent...

To expand on Viliam's point about the exponent being prime: if the exponent is composite, the corresponding Mersenne number has trivially found factors and so is composite. In that case none of the...
Showing results 1 to 25 of 1000

 
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