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Forum: Science & Technology 2018-05-03, 09:25
Replies: 42
Views: 11,731
Posted By Ralf Recker
Spectre-NG

At least 8 more (Spectre) bugs have been discovered...

https://www.heise.de/security/meldung/Spectre-NG-Intel-Prozessoren-von-neuen-hochriskanten-Sicherheitsluecken-betroffen-4039302.html

More...
Forum: Science & Technology 2018-01-05, 18:29
Replies: 42
Views: 11,731
Posted By Ralf Recker
PCID was not a new feature of the Haswell CPUs. ...

PCID was not a new feature of the Haswell CPUs.

ralf@quadriga:~$ cat /proc/cpuinfo | grep name | uniq
model name : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz
ralf@quadriga:~$ cat /proc/cpuinfo |...
Forum: Lounge 2017-08-25, 03:35
Replies: 58
Views: 9,052
Posted By Ralf Recker
Snapdragon 820 (2.15GHz) - Android 7.1.1: ...

Snapdragon 820 (2.15GHz) - Android 7.1.1:

2^23209-1 is prime !!
Lasted: 10708 milliseconds

Exynos 8890 (2.3 GHz) - Android 7.0:

2^23209-1 is prime !!
Lasted: 12631 milliseconds
Forum: Lounge 2016-06-03, 05:52
Replies: 133
Views: 7,025
Posted By Ralf Recker
Yes. I'm still waiting for the buttons.

Yes. I'm still waiting for the buttons.
Forum: Lounge 2016-02-17, 07:05
Replies: 133
Views: 7,025
Posted By Ralf Recker
ADDRESS VERIFIED: YES MISSING: M30402457 &...

ADDRESS VERIFIED: YES
MISSING: M30402457 & M32582657
PACKAGED: YES
SENT: 24 MAR
RECEIVED:
Forum: GPU Computing 2015-08-09, 06:33
Replies: 5
Views: 4,670
Posted By Ralf Recker
Here is the explanation: Windows 10 will not...

Here is the explanation:

Windows 10 will not load the NVIDIA display driver for my older graphics card in my PC that has multiple graphics cards...
Forum: Soap Box 2015-05-20, 17:01
Replies: 759
Views: 38,047
Posted By Ralf Recker
Another downgrade attack (https://weakdh.org/)...

Another downgrade attack (https://weakdh.org/) paper has been published recently. It might explain one of the stunts the NSA has allegedly pulled off.
Forum: GPU Computing 2015-05-16, 09:45
Replies: 3,436
Views: 312,378
Posted By Ralf Recker
Here is the partial output from a -st run of...

Here is the partial output from a -st run of mfaktc 0.21 on a GTX 970 (Debian 8.0/CUDA Toolkit 7.0).


Selftest statistics
number of tests 26192
successfull tests 15238
...
Forum: GPU Computing 2015-05-09, 13:31
Replies: 3,436
Views: 312,378
Posted By Ralf Recker
I get the same error here (mfaktc 0.20 and...

I get the same error here (mfaktc 0.20 and 0.21/CUDA toolkit 7.0/Driver versions 346.47, 346.59 and 349.16/Debian 8 and CentOS 7)
on a Maxwell card (GTX 970/compute_52/sm_52) but not on a Kepler...
Forum: Hardware 2015-05-09, 09:59
Replies: 57
Views: 4,356
Posted By Ralf Recker
Skylake CPU support for AVX 512 looks bleak...

Skylake CPU support for AVX 512 looks bleak (https://en.wikipedia.org/wiki/AVX-512), at least for the desktop (https://en.wikipedia.org/wiki/Skylake_%28microarchitecture%29).
Forum: Lounge 2015-05-09, 04:25
Replies: 58
Views: 9,052
Posted By Ralf Recker
Digging out old threads

Snapdragon 410 (1.2 GHz) 32 bit mode:

2^23209-1 is prime !!
Lasted: 174084 milliseconds
Forum: GPU Computing 2014-10-24, 15:44
Replies: 3,436
Views: 312,378
Posted By Ralf Recker
Seems that the 344.48 driver fixed the issue.

Seems that the 344.48 driver fixed the issue.
Forum: GPU Computing 2014-10-20, 11:43
Replies: 3,436
Views: 312,378
Posted By Ralf Recker
I've sent a benchmark for a GTX 970 (two...

I've sent a benchmark for a GTX 970 (two submissions because of a typo in the bitlevel field. 71-72 is the right one. 71-73 is wrong).
Forum: GMP-ECM 2014-10-20, 09:37
Replies: 502
Views: 76,062
Posted By Ralf Recker
CC 5.2 card (GTX 970), 512 bit arithmetic, CUDA...

CC 5.2 card (GTX 970), 512 bit arithmetic, CUDA SDK 6.5.19. The same c151 as above. Compiled for sm_50:

GMP-ECM 7.0-dev [configured with GMP 6.0.0, --enable-asm-redc, --enable-gpu,...
Forum: GPU Computing 2014-10-16, 14:20
Replies: 3,436
Views: 312,378
Posted By Ralf Recker
I had no problems either until I installed a 4GB...

I had no problems either until I installed a 4GB maxwell card and tested it with a program that can use more than 2GB of video memory. A least it's an already known bug and not defective hardware.
Forum: GPU Computing 2014-10-16, 11:34
Replies: 3,436
Views: 312,378
Posted By Ralf Recker
I hope next time NVIDIA tests their cards and...

I hope next time NVIDIA tests their cards and drivers on boxes with 32 GB RAM installed.

I had to use msconfig to tell windows to use only 30 GB on boot to avoid a bunch of crashes.
Forum: NFS@Home 2014-06-28, 08:51
Replies: 1,828
Views: 118,661
Posted By Ralf Recker
Slightly OT: I received no e-mail notification...

Slightly OT: I received no e-mail notification from your ECMNET server.

[2014-06-27 19:40:35 GMT] GCW: Factor found! GW_X_XYZ / (prime) XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX B1: 3000000...
Forum: Factoring 2014-06-01, 13:02
Replies: 46
Views: 3,315
Posted By Ralf Recker
http://www.mersenneforum.org/showpost.php?p=353606...

http://www.mersenneforum.org/showpost.php?p=353606&postcount=205
http://www.mersenneforum.org/showpost.php?p=374013&postcount=243

http://homes.cerias.purdue.edu/~ssw/cun/page129
Forum: GMP-ECM 2014-04-02, 19:13
Replies: 13
Views: 1,872
Posted By Ralf Recker
GMP 6.0.0 contains new optimizations for Intels...

GMP 6.0.0 contains new optimizations for Intels Conroe, Nehalem, Sandy/Ivy Bridge and Haswell architectures.


For more infos read: GMP on Intels Haswell...
Forum: FermatSearch 2014-03-18, 19:18
Replies: 318
Views: 44,268
Posted By Ralf Recker
http://www.prothsearch.net/fermat.html

http://www.prothsearch.net/fermat.html
Forum: GMP-ECM 2014-01-20, 17:56
Replies: 502
Views: 76,062
Posted By Ralf Recker
Try this: make ecm-params ./bench_mulredc...

Try this:

make ecm-params
./bench_mulredc >> ecm-params.h
make
Forum: GMP-ECM 2014-01-19, 17:11
Replies: 69
Views: 10,710
Posted By Ralf Recker
On my machine gmp is statically linked: ...

On my machine gmp is statically linked:

[ralf@quadriga ecm]$ ldd ecm
linux-vdso.so.1 => (0x00007fff58960000)
librt.so.1 => /lib64/librt.so.1 (0x00007f49ca1f4000)
libm.so.6 =>...
Forum: Hardware 2014-01-19, 15:21
Replies: 831
Views: 129,933
Posted By Ralf Recker
v28.3 - Linux 64 Bit

Compare your results to other computers at http://www.mersenne.org/report_benchmarks
Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz
CPU speed: 3392.41 MHz, 4 hyperthreaded cores
CPU features: Prefetch,...
Forum: Lounge 2013-11-26, 11:11
Replies: 110
Views: 5,560
Posted By Ralf Recker
Did they mention ASICs?

Did they mention ASICs?
Forum: Lounge 2013-11-24, 12:14
Replies: 110
Views: 5,560
Posted By Ralf Recker
Sounds like one of Baldrick's cunning plans......

Sounds like one of Baldrick's cunning plans... :smile:
Showing results 1 to 25 of 191

 
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