cgmon - mining monitor for Linux - auto restart, reboot, sick gpu, ASIC, &more

[Angela8488]

If set crontab like this

*/1 * * * *     /usr/local/bin/cgmon.tcl >>/var/log/cgmon.log 2>&1

and edit cgmon.tcl like this

set cgmon_logfile "/var/log/cgmon.log"

the log file like this

[root@rig-2 ~]# tailf /var/log/cgmon.log
Feb 04 18:50:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:50:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:51:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:51:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:52:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:52:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:53:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:53:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:54:02 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:54:02 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.

no big deal, but maybe fix the Install instructions ?
thanks for your gread job.

[bobers]

That file looked fine.  BAMT 1.3

Could you plz give me steps how did you add it to BAMT?

[mig5000]

What are the possible causes of sgminer hard hang? I was getting GPU not well before and tuned it down and now sgminer just hangs.

[dr00g]

From my experience, it can be due to:
1: Unstable thread-concurrency for the card
2: Too much OC
3: Too much undervolting
4: A combination of OC and it now needs more voltage
5: Somekind of other non-default value which is incompatible with your card, many errors are caused by manual settings!
6: Changes to engine/ memory clock values, or voltage value while running cgminer/sgminer can sometimes crash it, no idea why...

All of them will usually result in what is earlier mentioned as "ASIC hang", which in English means that the graphic driver has crashed.
That will either lead to "dead GPU", or a complete cgminer hang.

It could also be due to a unstable/uncompatible driver, but not sure that has caused me any issues.

I myself am running with a setup of:
Xubuntu 12.10
AMD Catalyst 13.12
AMD ADL SDK 6.0
AMD APP SDK 2.8
Sapphire 7950 w/ boost, running 1100/1500 at vddc 1.100, thead-concurrency 24000

Angela/bobers:
That is because of this line in the cron:
*/1 * * * *     /usr/local/bin/cgmon.tcl >>/var/log/cgmon.log 2>&1
By adding >>/var/log/cgmon.log I guess you override the logpath setting in cgmon. You should be fine by doing:
*/1 * * * *     /usr/local/bin/cgmon.tcl

A little tip: */1 is the same just *, so * * * * * is every minute.

Keep in mind that as there is no username set, it will run as currently logged on user. That tells me for the script to work, as it needs root rights, that you either:
1: Is always running as root, and thereby the miner process as root, generally not a good idea for security purposes
2: Not using the crontab file which is compatible with usernames
3: Not using the crontab file which is compatbile with usernames, and you are running with a non-root user account, and in that case the script won't work (reboot command requires it).

It's only in /etc/crontab you can specify run-as usernames, not by doing crontab -e, which is a seperate file for each user, and thereby always runs as that user.

So what you really should do is:
nano /etc/crontab
Add:
* * * * *   root   /home/username/cgmon.tcl

[mig5000]

Yeah I'm doing a fresh install of everything and will see how it goes. I might even start from scratch with my settings. Hard hang is no fun. It can go 5 hours w/o hard hanging and then 5 times in 1 hour. Really hard to put your finger on.

[jdape]

If set crontab like this

*/1 * * * *     /usr/local/bin/cgmon.tcl >>/var/log/cgmon.log 2>&1

and edit cgmon.tcl like this

set cgmon_logfile "/var/log/cgmon.log"

the log file like this

[root@rig-2 ~]# tailf /var/log/cgmon.log
Feb 04 18:50:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:50:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:51:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:51:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:52:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:52:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:53:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:53:01 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:54:02 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.
Feb 04 18:54:02 rig-2 - cgmon 0.1b13 - cgminer running and all GPUs healthy.

no big deal, but maybe fix the Install instructions ?
thanks for your gread job.

Code:

*/1 * * * *     /usr/local/bin/cgmon.tcl >>/var/log/cgmon.log 2>&1

Hi.  This line is creating the redundant log file entries.  Remove '>/var/log/cgmon.log'.

[Angela8488]

Thank you very much
my computer is a dedicate rig, and there is nothing on it but only rig software,so i don't really care about security
and also thanks for the introduce of crontab,that helps me a lot

From my experience, it can be due to:
1: Unstable thread-concurrency for the card
2: Too much OC
3: Too much undervolting
4: A combination of OC and it now needs more voltage
5: Somekind of other non-default value which is incompatible with your card, many errors are caused by manual settings!
6: Changes to engine/ memory clock values, or voltage value while running cgminer/sgminer can sometimes crash it, no idea why...

All of them will usually result in what is earlier mentioned as "ASIC hang", which in English means that the graphic driver has crashed.
That will either lead to "dead GPU", or a complete cgminer hang.

It could also be due to a unstable/uncompatible driver, but not sure that has caused me any issues.

I myself am running with a setup of:
Xubuntu 12.10
AMD Catalyst 13.12
AMD ADL SDK 6.0
AMD APP SDK 2.8
Sapphire 7950 w/ boost, running 1100/1500 at vddc 1.100, thead-concurrency 24000

Angela/bobers:
That is because of this line in the cron:
*/1 * * * *     /usr/local/bin/cgmon.tcl >>/var/log/cgmon.log 2>&1
By adding >>/var/log/cgmon.log I guess you override the logpath setting in cgmon. You should be fine by doing:
*/1 * * * *     /usr/local/bin/cgmon.tcl

A little tip: */1 is the same just *, so * * * * * is every minute.

Keep in mind that as there is no username set, it will run as currently logged on user. That tells me for the script to work, as it needs root rights, that you either:
1: Is always running as root, and thereby the miner process as root, generally not a good idea for security purposes
2: Not using the crontab file which is compatible with usernames
3: Not using the crontab file which is compatbile with usernames, and you are running with a non-root user account, and in that case the script won't work (reboot command requires it).

It's only in /etc/crontab you can specify run-as usernames, not by doing crontab -e, which is a seperate file for each user, and thereby always runs as that user.

So what you really should do is:
nano /etc/crontab
Add:
* * * * *   root   /home/username/cgmon.tcl

[kinsik]

What is the delay between starting ubuntu and starting cgminer and how it can be changed?
Now cgminer starts in a bout 3-5 minutes after booting OS.

[jdape]

What is the delay between starting ubuntu and starting cgminer and how it can be changed?
Now cgminer starts in a bout 3-5 minutes after booting OS.

Add the full path to cgmon.tcl to your rc.local file.  That will start it immediately at boot time.

For example, in Ubuntu I have this line in /etc/rc.local

Code:

/home/username/cgmon.tcl&

[MrBobC]

I would like to make it so that instead of cgmon trying to start cgminer, it just restarts the pc instead.  I left the other day to get some mining supplies and got e-mails every minute that it was starting the mining program on one of my PCs.  I came home to over 180 e-mails.  This would work considering the cgmon process doesn't start until 5 minutes after the computer is on.  By then it would have started mining by itself.

[jdape]

I would like to make it so that instead of cgmon trying to start cgminer, it just restarts the pc instead.  I left the other day to get some mining supplies and got e-mails every minute that it was starting the mining program on one of my PCs.  I came home to over 180 e-mails.  This would work considering the cgmon process doesn't start until 5 minutes after the computer is on.  By then it would have started mining by itself.

There must be an error in cgmon, or something else on your computer.   That is not the intended behavior...

You can disable email notifications if you just want cgmon to restart your computer when it detects a problem.  There's an option in the configuration section.

[kinsik]

What is the delay between starting ubuntu and starting cgminer and how it can be changed?
Now cgminer starts in a bout 3-5 minutes after booting OS.

Add the full path to cgmon.tcl to your rc.local file.  That will start it immediately at boot time.

For example, in Ubuntu I have this line in /etc/rc.local

Code:

/home/username/cgmon.tcl&

I've already added to crontab */5 * * * *   root   /home/my user name /cgmon.tcl >/dev/null 2>&1 and it works as described - starts only in 3-5 min after booting.

[MrBobC]

I know how to disable the e-mail notification, but I'm not too familiar with coding.  What is the start command I should be looking for to change to "reboot"?

[dr00g]

I know how to disable the e-mail notification, but I'm not too familiar with coding.  What is the start command I should be looking for to change to "reboot"?

That would be this reboot routine:

proc reboot {} {
            
   after 10000
   exec /sbin/shutdown -r now
   exec shutdown -r now

   # and in case that didn't work...
   # (BAMT)
   after 5000
   exec reboot -f
}

[MrBobC]

I've seen that.  I'm referring to the part where cgmon actually starts cgminer when it says it wasn't running.  Instead of the cgmon script starting cgminer, I'd like it to reboot the computer.  If I knew where to look I would replace the start command with the reboot procedure reference.

[kinsik]

How is it possible to change the pool without rebooting the PC?
If I change in tcl file the main pool what should I do next?

[mig5000]

How is it possible to change the pool without rebooting the PC?
If I change in tcl file the main pool what should I do next?

'Q' : quit sgminer/cgmin
Change the server in cgmon.tcl.
Save and relaunch is with sudo ./cgmon.tcl

[jdape]

How is it possible to change the pool without rebooting the PC?
If I change in tcl file the main pool what should I do next?

I make the changes I want in cgmon.tcl and then I do this:

Code:

screen -r
q
./cgmon.tcl

[scryptactical]

Whats up Jdape badass script so far. Im having a problem that I hope you can address.

1.) ubuntu 13.04 machine never reboots for any of the variables that you provide. The reboot command appears to be broken. ive done several rounds of testing to see if the command ever invokes, unplugging network cable, over clocking card until it hangs but it doesnt appear to ever happen.

Any help?

[jdape]

Do you see the broadcast message saying its about to be rebooted?  Do you get emails saying the GPU is hung/dead/sick and the script is going to reboot?