Posts by Krümel

1) Message boards : News : Another experiment on E. coli (Message 1257)
Posted 3 Feb 2018 by Krümel

I undervolted a little bit. Offset is -0,05.
2,7 GHz @ 0,85 Volt

2) Message boards : News : Another experiment on E. coli (Message 1255)
Posted 2 Feb 2018 by Krümel

Why don't you try to overclock your Ryzen CPUs? With the stock cooler you can do it to 3.6-3.7 GHz without overheat it. I have a Ryzen 7 1700 at 3.9 GHz and it works perfectly.

My R7 1700 is runnig @ 2,7 GHz to save Energie.
Electricity is quiet expansive in Germany.
At this speed the R7 uses less than 50 watts.
@ 3.6 GHz it would be around 90 watts or more. :)

3) Message boards : News : Another experiment on E. coli (Message 1245)
Posted 19 Jan 2018 by Krümel

5h 45min on my R7 1700 @ 2,7 GHz SMT on = 16 threads at a time. RAM @ 3.066 MHz

4) Message boards : Number crunching : Optimization (Message 1224)
Posted 12 Dec 2017 by Krümel

i have 1x8GB 2666mhz c16,...

OK, that´s just single channel and slows down the system as well.
With two RAM-Sticks you would use dual channel with a much wider bandwith.

5) Message boards : Number crunching : Optimization (Message 1221)
Posted 11 Dec 2017 by Krümel

How is your RAM-Speed?
On my R7 it makes a big differens between 2.133 MHz an 3.066 Mht (up to 30 minutes)

6) Message boards : News : Another experiment on E. coli (Message 1189)
Posted 11 Nov 2017 by Krümel

2:15 h on my R7 1700. :)

7) Message boards : Number crunching : Optimization (Message 1046)
Posted 10 Apr 2017 by Krümel

Great job again Daniel.
R7 1700 @ 3,2 GHz (SMT on) = 1.950 Sec. (down from 2.350 Sec.) with Win 10.

Edit: AVX-App

8) Message boards : Number crunching : FMA problems (Ryzen and others?) (Message 1030)
Posted 7 Apr 2017 by Krümel

I´m the risky kind of guy... ;)
Well, but all about Ryzen-Mainboards is kind of "Beta". :D

9) Message boards : Number crunching : FMA problems (Ryzen and others?) (Message 1028)
Posted 6 Apr 2017 by Krümel

OK something is still strange.
Most FMA-WU worked propperly, but 4 errored with "Privileged Instruction".
The new AGESA still seems "Beta". :)

10) Message boards : Number crunching : FMA problems (Ryzen and others?) (Message 1027)
Posted 5 Apr 2017 by Krümel

Thanks to an AGESA-Update with the new Beta-Bios for my ASUS Prime B350-Plus the FMA-App is noe working fine with my R7 1700.
It realy was the FMA-Bug of the new Ryzen Processor that caused the problem.

11) Message boards : Number crunching : FMA problems (Ryzen and others?) (Message 1008)
Posted 22 Mar 2017 by Krümel

Same here with Ryzen 7 1700 and Win 10.
FMA WUs won´t work.

http://gene.disi.unitn.it/test/result.php?resultid=7952994

12) Message boards : Number crunching : Optimization (Message 830)
Posted 27 Jan 2017 by Krümel

i7 6700T @ 3 GHz, HTT on (8 WU at a time)

New AVX2-App: 34 Minutes
FMA-App: 33 Minutes
SSE2-App: 41 Minutes

13) Message boards : Number crunching : Optimization (Message 811)
Posted 25 Jan 2017 by Krümel

The new FMA-App is great.
Times dropt from 55 Minutes to 46 Minutes!

14) Message boards : Number crunching : Optimization (Message 809)
Posted 24 Jan 2017 by Krümel

I have uploaded new version of FMA app for Windows and Linux 64bit. It uses shorter (SSE) vectors, so it should be faster than SSE version now.

I´ll give it a try tomorrow. :)

15) Message boards : Number crunching : Optimization (Message 801)
Posted 24 Jan 2017 by Krümel

SSE2 = 52 Minutes

16) Message boards : Number crunching : Optimization (Message 800)
Posted 24 Jan 2017 by Krümel

Avg. runtime of the new FMA-App on a FX 8320 @ 3,5 GHz (RAM 1.333) = 55 Minutes.
AVX-App = 58 Minutes.

Now testing SSE2...

17) Message boards : Number crunching : Optimization (Message 789)
Posted 23 Jan 2017 by Krümel

OK, tried SSE2 once again and it is working. :)
FMA seems to be running too.

Thank You Daniel!

18) Message boards : Number crunching : Optimization (Message 784)
Posted 23 Jan 2017 by Krümel

Hi, thank You.

But I´m getting compute errors with the new SSE2 and FMA App. Only AVX ist working very well on my FX 8320 (Win 10 64 bit).

Keep on Your great work!