run mprime in background

guest · 2015-01-20, 15:59

Hello,

I want to run mprime on Linux (openSUSE) in the background. I started the stress test so:

Code:

mprime -t &

But after every cycle I get the status of each cpu, that the test is still running, like:

Code:

[Worker #1 Jan 20 16:56] Test 2, 5300 Lucas-Lehmer iterations of M14155775 using FFT length 720K, Pass1=320, Pass2=2304.
[Worker #2 Jan 20 16:56] Test 2, 5300 Lucas-Lehmer iterations of M14155775 using FFT length 720K, Pass1=320, Pass2=2304.

I want to have no outputs.
What can I do, to run mprime -t in the background? Why is the option -B not longer supported?

Kind regards.
Stefan

Mark Rose · 2015-01-20, 16:26

I like to run it in `screen`.

I put this in my crontab to have it start at boot

Code:

@reboot screen -S mprime -d -m /home/ontherange/mprime/mprime.exe -d

Alternatively you can run `screen mprime`. To detach from screen and leave it running, type ctrl-a, d. To reattach to screen running in the background, run `screen -r`.

guest · 2015-01-20, 17:34

Currently I run it in screen mode, but I thought, there is a "better" way. Can I run mprime in a silent or quiet mode?

guest · 2015-01-20, 17:38

Perhaps with?

Quote:

mprime -t > /dev/null 2>&1 &

chalsall · 2015-01-20, 17:39

Quote:

Originally Posted by guest

Currently I run it in screen mode, but I thought, there is a "better" way. Can I run mprime in a silent or quiet mode?

I do:

Code:

./mprime </dev/null >/dev/null 2>/dev/null &

...and then exit the SSH session (if not a local instance). The last step is critical, or else mprime will stop shortly after the SSH session terminates for whatever reason (local machine goes down, internet connection goes down, etc).

LaurV · 2015-01-20, 17:45

How about CTRL+ALT+F6, login, run mprime, then ALT+F7 back to x?

(don't jump on me, I am not a linux guy, hehe, but the tty6 is almost never used, some may use 1, 2, 3, but that is! for some reasons debian offers 6...)

Mark Rose · 2015-01-20, 18:12

Quote:

Originally Posted by LaurV

How about CTRL+ALT+F6, login, run mprime, then ALT+F7 back to x?

(don't jump on me, I am not a linux guy, hehe, but the tty6 is almost never used, some may use 1, 2, 3, but that is! for some reasons debian offers 6...)

*sits down at LaurV's computer with the screensaver locked, hits ctrl-alt-f6, hits ctrl-c, does evil*

I wouldn't recommend that method ;)

Xyzzy · 2015-01-20, 18:22

All bets (security) are off once you have physical access.

LaurV · 2015-01-20, 18:57

Quote:

Originally Posted by Mark Rose

*sits down at LaurV's computer with the screensaver locked, hits ctrl-alt-f6, hits ctrl-c, does evil*
I wouldn't recommend that method ;)

You have no imagination, take the keyboard and lock it in a cabinet. Didn't you see Mr. Bean with the steering wheel?

EdH · 2015-01-22, 04:22

Quote:

Originally Posted by LaurV

You have no imagination, take the keyboard and lock it in a cabinet. Didn't you see Mr. Bean with the steering wheel?

On all my linux machines I can unplug the keyboard and plug in a different one and it will work fine. In fact, most of my machines currently have no keyboard, mouse or monitor. But, if I need to I can plug in all three and work away without crashing anything. And, that's PS2 keyboards...

As to the reference to screen, I have also used tmux via ssh on my systems from time to time.

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2015-01-20, 15:59	#1
guest Jan 2015 3 Posts	run mprime in background Hello, I want to run mprime on Linux (openSUSE) in the background. I started the stress test so: Code: mprime -t & But after every cycle I get the status of each cpu, that the test is still running, like: Code: [Worker #1 Jan 20 16:56] Test 2, 5300 Lucas-Lehmer iterations of M14155775 using FFT length 720K, Pass1=320, Pass2=2304. [Worker #2 Jan 20 16:56] Test 2, 5300 Lucas-Lehmer iterations of M14155775 using FFT length 720K, Pass1=320, Pass2=2304. I want to have no outputs. What can I do, to run mprime -t in the background? Why is the option -B not longer supported? Kind regards. Stefan

2015-01-20, 16:26	#2
Mark Rose "/X\(‘-‘)/X\" Jan 2013 2930₁₀ Posts	I like to run it in `screen`. I put this in my crontab to have it start at boot Code: @reboot screen -S mprime -d -m /home/ontherange/mprime/mprime.exe -d Alternatively you can run `screen mprime`. To detach from screen and leave it running, type ctrl-a, d. To reattach to screen running in the background, run `screen -r`.

2015-01-20, 17:34	#3
guest Jan 2015 3 Posts	Currently I run it in screen mode, but I thought, there is a "better" way. Can I run mprime in a silent or quiet mode?

2015-01-20, 17:45	#6
LaurV Romulan Interpreter Jun 2011 Thailand 3²×29×37 Posts	How about CTRL+ALT+F6, login, run mprime, then ALT+F7 back to x? (don't jump on me, I am not a linux guy, hehe, but the tty6 is almost never used, some may use 1, 2, 3, but that is! for some reasons debian offers 6...)

2015-01-20, 18:22	#8
Xyzzy "Mike" Aug 2002 2×23×179 Posts	All bets (security) are off once you have physical access.