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-   -   mfaktc: a CUDA program for Mersenne prefactoring (https://www.mersenneforum.org/showthread.php?t=12827)

kladner 2012-01-05 19:46

[QUOTE=Dubslow;284721]Whatever I was doing then, it wasn't right. I just tried this again, with opposite results: ^C is passed to mfaktc. Unfortunately, the options aren't recognized and the affinity isn't set properly (not set at all).

So that still leaves me clueless.[/QUOTE]

Well, if you want to reconsider, this will do affinity and priority. You can add switches at the end of the last line, if you want them.

[CODE][your drive letter]:
cd \[your directory]\[your subdirectory if needed]
start /low /affinity 0x20 mfaktc-win-64[/CODE]

Edit: Ctl-C will go to mfaktc.

Dubslow 2012-01-05 20:53

Hehe, thanks. (Though I did have to use affinity 0x80 :rolleyes:)

kladner 2012-01-05 22:51

[QUOTE=Dubslow;284945]Hehe, thanks. (Though I did have to use affinity 0x80 :rolleyes:)[/QUOTE]

Yeah. I didn't put in [your hex value] in line 3.

bcp19 2012-01-06 00:08

[QUOTE=kladner;284936]That would be KB, right?:rolleyes:[/QUOTE]

Of course. The fingers need to pay more attention to what the brain is thinking.

kladner 2012-01-06 04:13

[QUOTE=bcp19;284976]Of course. The fingers need to pay more attention to what the brain is thinking.[/QUOTE]

It's been so long since such numbers were pertinent. The first computer in this household had 8MB of RAM (I insisted on upping it from the 4MB on offer), and a 120MB HDD. The second machine had 256MB of RAM, or double what the first had in the HDD. The first was a 486DX 33MHz with DOS 5 and Windows 3.1. The second was a Pentium Pro, which had a few OS upgrades in its life span.

Dubslow 2012-01-06 05:00

He, found another problem. It works great when I double click the file -- but if I pin the resulting icon to the taskbar and just click on that icon, it doesn't work. Pain the butt.
Edit: Making a shortcut and pinning that doesn't work either.
Double clicking the shortcut on the desktop works though.

kladner 2012-01-06 05:04

[QUOTE=Dubslow;285018]He, found another problem. It works great when I double click the file -- but if I pin the resulting icon to the taskbar and just click on that icon, it doesn't work. Pain the butt.
Edit: Making a shortcut and pinning that doesn't work either.
Double clicking the shortcut on the desktop works though.[/QUOTE]

Hmm. Haven't tried that. I have icons on the desktop.

EDIT: But I've been lazy about consolidating the start up of the two instances I run.

xtreme2k 2012-01-06 15:59

1 Attachment(s)
I am completely new to GPU TFing and have some stats to share with you guys.

System
2600K/GTX460 stock

During TFing on the GPU it seems like the CPU is rather busy as well, which in turns use a fair bit of power, 26.8 watt in this case. Is this normal? Is there anyway to run this more effectively? The same CPU idling uses about 5-7w of power.

The GTX seems to churn out a 70-71 bit TF in about 1 hour and a 71-72 in about 2 hours which is fairly fast (i think) compared to pure CPU TFing.

James Heinrich 2012-01-06 16:03

[QUOTE=xtreme2k;285078]seems like the CPU is rather busy as well, which in turns use a fair bit of power, 26.8 watt in this case. Is this normal?[/QUOTE]Perfectly normal. You're using one core's worth of CPU power to keep the GPU pretty well fed. Looks good.

flashjh 2012-01-06 16:05

[QUOTE=xtreme2k;285078]I am completely new to GPU TFing and have some stats to share with you guys.

System
2600K/GTX460 stock

During TFing on the GPU it seems like the CPU is rather busy as well, which in turns use a fair bit of power, 26.8 watt in this case. Is this normal? Is there anyway to run this more effectively? The same CPU idling uses about 5-7w of power.

The GTX seems to churn out a 70-71 bit TF in about 1 hour and a 71-72 in about 2 hours which is fairly fast (i think) compared to pure CPU TFing.[/QUOTE]

Your CPU does some sieving, so that's normal. Everything from you're picture seems good. You could try running two instances to see if you get more throughput.

xtreme2k 2012-01-06 16:13

Thanks guys.

Great info, I will try to run 2 instances, would that be by running 2 separate ones from 2 folders?

Would you also run prime95 on 3 CPU cores (TF or other units) at the same time?


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