mprime: how to stop exactly one worker (out of 2)

axn · 2009-03-08, 14:12

I want to temporarily stop/suspend one of the threads for a while without changing any worker settings or messing up my assignments. Easy enough to do in windows. Unfortunately, I can't seem to find a way to do the same with mprime.

Any ideas?

Mr. P-1 · 2009-03-08, 17:13

top -H will show you the active threads. You can then kill them (from the shell, or with 'k' in top) with signals SIGSTOP and SIGCONT to stop and start them respectively.

I know of no slick way to figure out which thread is which. A clumsy way would be to set reporting to every 100 itterations or some other low number, stop one of the threads, and if it's the wrong one, restart it and stop the other one.

Uncwilly · 2009-03-09, 02:01

The latest version Prime95 will let you do that from the GUI. So, I suspect there is a switch to do that some place.

axn · 2009-03-09, 06:42

Well, STOPing the thread didn't work (kill -STOP <pid>). When I STOP one thread, both of them disappear from top -H.

George, a little help please?

CADavis · 2009-03-09, 06:53

hmm I would try in local.txt:

WorkerThreads=1

ThreadsPerTest=1

Last time I did that, it kept the [Worker #2] section in worktodo but you should make a backup just in case.

Prime95 · 2009-03-09, 15:24

Quote:

Originally Posted by axn

George, a little help please?

The feature is not available from the Linux menus. I'll fix it in 25.9 build 4.

Mr. P-1 · 2009-03-10, 14:12

Quote:

Originally Posted by axn

Well, STOPing the thread didn't work (kill -STOP <pid>). When I STOP one thread, both of them disappear from top -H.

Even worse, kill -CONT doesn't work. I had to fg from the shell.

That will teach me not to test my recommendations before posting them.

Mr. P-1 · 2009-03-28, 10:56

Quote:

Originally Posted by Mr. P-1

I know of no slick way to figure out which thread is which.

taskset -p PID will give you the affinity mask.

2009-03-08, 14:12	#1
axn Jun 2003 5·29·37 Posts	mprime: how to stop exactly one worker (out of 2) I want to temporarily stop/suspend one of the threads for a while without changing any worker settings or messing up my assignments. Easy enough to do in windows. Unfortunately, I can't seem to find a way to do the same with mprime. Any ideas?

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2009-03-08, 17:13	#2
Mr. P-1 Jun 2003 7×167 Posts	top -H will show you the active threads. You can then kill them (from the shell, or with 'k' in top) with signals SIGSTOP and SIGCONT to stop and start them respectively. I know of no slick way to figure out which thread is which. A clumsy way would be to set reporting to every 100 itterations or some other low number, stop one of the threads, and if it's the wrong one, restart it and stop the other one.

2009-03-09, 02:01	#3
Uncwilly 6809 > 6502 """"""""""""""""""" Aug 2003 101×103 Posts 10525₁₀ Posts	The latest version Prime95 will let you do that from the GUI. So, I suspect there is a switch to do that some place.

2009-03-09, 06:42	#4
axn Jun 2003 14F5₁₆ Posts	Well, STOPing the thread didn't work (kill -STOP <pid>). When I STOP one thread, both of them disappear from top -H. George, a little help please?

2009-03-09, 06:53	#5
CADavis Jul 2005 Des Moines, Iowa, USA 2×5×17 Posts	hmm I would try in local.txt: WorkerThreads=1 ThreadsPerTest=1 Last time I did that, it kept the [Worker #2] section in worktodo but you should make a backup just in case.