It's amazing what you find when searching for something else!

Gary Roberts
Gary Roberts
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Joined: 9 Feb 05
Posts: 5845
Credit: 109974426984
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mikey wrote:... near 70F and

mikey wrote:
... near 70F and that's above normal for me here in southern NC. It also means though my a/c system has to be turned back on again to keep my pc's running cool.

It's early morning here in sunny Brisbane and, being midsummer, the temperature in my machine room is 37C or 98F.  It heats up a bit overnight when the building is closed and my forced air re-circulation system isn't getting cooler air.  Now that it is, the temperature will drop to around 33C (91F) and gradually warm to around 100F by mid afternoon.   By evening, it will drop back, usually to below 95F and then the gradual overnight climb begins again, once the building gets shut up.

I used to stress quite a lot about these insane values.  I setup this arrangement in 2012 and used to throttle machines when the ambient temperature got over 36C (97F).  I've added a lot of GPUs and cut back on CPU crunching to compensate a bit and it's now impossible not to go over 36C every day in summer.  I've stopped worrying about it.  Almost 6 years later, things seem to be able to survive.  Surprisingly, there have been very few failures during this period. I have a maintenance schedule that covers the two most common events, fan lubrication and swollen capacitors (motherboard and PSU).  I just re-lube fans or replace caps and put the machine back to work.  Crashes or lockups do happen more frequently in summer (maybe one machine per day on average) but I have systems to detect this and I just restart them after checking fans and caps.

I try not to spend a lot of time in the machine room :-).  My office next door is air-conditioned.  I'm spending a bit of time at the moment in there, as I'm doing the 2014-05-26 to 2016-05-27 upgrade progressively on all non-Polaris GPU machines.  There are some config file tweaks that need to be done at the machine and a couple of reboots at points during the upgrade so I was spending a bit of time at each machine.  I got sick of that so once I was confident of a workable procedure, I wrote a couple of scripts to automate some things.  So now, I just go in and plug in the external USB drive and launch the scripts and get the hell outa there!! :-).  It's not fully automatic - the first script handles the upgrade (around 700 packages) and it takes around 30 mins for all those to be applied.  After that I go check to make sure there were no complaints from synaptic and then launch the second stage - reboot followed by kernel upgrade and a final reboot followed by tweaking of sshd to suit my purposes.

So that you don't get stuck with not enough wall-to-wall text to read :-) I'm going to try to write regularly about particular aspects of 'the PCLOS way' of doing things that should explain why certain things are done they way they are and what the reasons for that are.  Of course, I'm not trying to restrict you and you are free to do things differently if you so wish.  What works for me may not work for you.

To make sure I can see what you see, I've dug out an old laptop that I haven't used in quite a while.  It has a KDE4 system on it but there is a single meta-package in the repo called task-mate (I believe - haven't looked yet :-) ) that will allow me to set up a dual desktop arrangement.  It's then just a matter of logging out of one DE and logging in to the other.  This will allow me to become familiar with various tools specific to mate (file manager, text editor, console windows for both user and root, etc) that are likely to be cosmetically different to what I'm used to.  That way I'll be able to understand (hopefully) what you might be seeing.

You never know, I might even decide I like it better than KDE :-).  If that all goes well, I'll probably also add task-xfce and see if I can cope with that.  I've always wondered if a light weight environment like Xfce might be really good for pure crunching boxes.  The PCLOS monthly magazine (always an excellent read and all past issues easily available on-line) has had a number of very good articles about using/configuring Xfce and this might be the impetus that gets me to find some time to explore ;-).

I'll upgrade the laptop to my 2016-05-27 clone point and add the task-mate package that was current at that time and see what happens :-).  This is one of the things that's nice about the PCLOS philosophy of 'install once, upgrade forever' but it does rely on keeping a local copy of the repo and cloning it at regular intervals :-).  I'm sure glad I have that!!

 

Cheers,
Gary.

earthbilly
earthbilly
Joined: 4 Apr 18
Posts: 59
Credit: 1140229967
RAC: 0

I used to stress quite a lot

I used to stress quite a lot about these insane values.  I setup this arrangement in 2012 and used to throttle machines when the ambient temperature got over 36C (97F).  I've added a lot of GPUs and cut back on CPU crunching to compensate a bit and it's now impossible not to go over 36C every day in summer.  I've stopped worrying about it.  Almost 6 years later, things seem to be able to survive.  Surprisingly, there have been very few failures during this period.

 

I am so impressed you two! I've dabbled with ubuntu a time or two but now only use windows 10 for ease and I think the impressive bug protection constantly updated. I don't understand much of your information (yet) although can follow it. I still hang on every word you two write. Should that worry my doctor? Gleaning insight you work on will help if I can continue this new hobby. My limit mostly is in computing power limited to using home made solar power with distaste for buying coal fired electricity so I'll never be such a volume contributor as you Gary, well done! Such dedication I salute;-) I'll probably slow up my posts because in Seti there was so much bullying and hate mail as I was trying to contribute I dropped my two workhorses from seti and now joined one here and one with asteroids. The respect here is way beyond ET-TV yet I don't want to say to much and prove I am dumb. 

Just this exchange you two had has helped beyond measure. There is intelligent life on Earth after all.

Sunny regards,

earthbilly

 

Work runs fine on Bosons reacted into Fermions,

Sunny regards,

earthbilly

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