Is Squid there from when you used it for LHC?

I prefer to run fewer concurrent tasks if things start heating up rather than reduce the percentage of time cpu is running them.

That is what I do too. Right now I would be running12 concurrent boinc tasks on my 8/16 core machine because it is cool here in my non-air-conditioned room. In summer, when it is hot, I reduce it to 8 or even 7 if it gets really hot.

Actually, I am running only 11 tasks because I have not gotten any Rosetta tasks in a very long time, and only one CPDN task every few days lately. So I am grinding out a lot of MilkyWay and Universe tasks that do not really interest me.

Is there much of a chance we will ever see more of the apps being made to run on Windows pc's? As you know currently only the WAH2 apps run on Windows pc's.

I'm working on a Windows version of OpenIFS now. The bulk of the model code is fine, it's the lower level calls to operating system functions which need time to work around because linux is very different to windows in that respect. I can't give you an estimate.

The current batch (see prev post) is for the new Baroclinic Lifecycle 'bl' version of OpenIFS.

Another project using the default OpenIFS app 'oifs_43r3' will also be releasing about 2000 workunits sometime this week. These will have a very similar runtime & upload size to the previous PS batches. Batch size is 2000 for this. There will be a News items (& client Notice) about this batch soon.

The web server, scheduler, feeder, validator, transitioner, download file handler… are on www.cpdn.org (status), but the upload file handler for the current OIFS work is on upload11.cpdn.org. They are physically different.

I could not upload a
UK Met Office HadSM4 at N144 resolution v8.02-i686-pc-linux-gnu
task result until the upload11.cpdn.org.server started working again (before it quit again).

I cannot really run all cores on Boinc tasks. I do not have air conditioning. I can control the fan speeds by BIOS settings. But the maximum I can run the fans at, before their noise gets really annoying, lets me run 8 or so cores in summer and I am currently running 11. The maximum number of cores for Boinc tasks is easily set in the Boinc-manager. And I can set the number of concurrent tasks for a given project in the app_config.xml file in the appropriate directory.

I'm surprised. CPUs generate so little heat compared with GPUs. I have 12 GPUs and 100 CPU cores. Most are in my garage, and I just leave windows open. No, the glass ones not the MS ones! One day I'll join the garage to the house so I can let the heat drift through in winter.

As for noise, just install a bigger heatsink and fan (or even water cooling). My 130W Ryzen 9 CPUs make very little noise running flat out. Two 6 inch fans on a 6x6x6 inch heatsink. Hence slow quiet fans.

Looks like a batch of HADSM4'S are being prepared.

A bit more info

That is a 2 step process:
1. Look at the Project status page, at the Tasks by application section, in the Application column, to find the name of the application in which you're interested.
2. Look on the Applications page to find out which OS's have that Application.

**********************

And don't forget: the tasks are from research groups external to Oxford.
What OS each group uses, is entirely up to them.

There's something like 400 CPU-years of work queued.

Batches 901-901 (current)

Batch Date        App.           Region         Res.    Period      Name (1st)                                  Size
901   07-Apr-21   HADAM4 8.52                   N216    5 month     hadam4h_h000_200605_5_901_012075259         2100

Comment
Batch 901: CDDHDD historical NH summer experiment: Cooling and heating degree days experiment for NH summer using OSTIA SST and Sea Ice.

(I had better check the upload limit as, if the Zips are the same size as the 240 month version, then 36 x 95 MB plus restarts is quite large ...)

In another thread there is a cruncher talking about putting a Ryzen thread ripper with 64 threads to work. 64x36x95=218.88GB! I hope that they are not like myself still on copper wires!

I keep the default buffer of 0.1 + 0.5 days. I might be able to get a different mix with a larger buffer, but it would still be random and not what I want.
That limits the amount that I am willing to do.

Interesting how the random bit works, I have my cache settings at 0.1 and 0.1 days, just downloaded some more work and now have 8 hadcm3 tasks running alongside 4 hadam4h ones. I have suspended the remaining 4 hadam4h tasks because of the cache memory limitations which would slow everything down a lot if I ran them as well.

pleased to see minimal increase in temperatures going up from four tasks to twelve. I have now set the project back to no new tasks and will wait till the four running hadam4 tasks have completed before requesting any more work. This way seems to be the closest I can get to controlling the tasks I get. Had I been able to choose task types, I would have used the project pages to stop any more hadam4h tasks being downloaded till the current ones were finished.

The UK doesn't have problems with slow mail or expensive prices, as we have 10 competing couriers.

We didn't have problems with slow mail or expensive prices before we had 10 competing couriers.

The exact wording is important.
Does it say "Project has no work"?

********

There is a back off timer intended to limit hoarding of tasks, so that it's fairer to all users.
The timer is nominally 1 hour, but is actually 1 hour and (I think), 30 seconds.
Any contact with the server either starts the timer, or resets it to 1 hour, hence the "Don't keep clicking the Update button" advice.

And this latest lot was only 2 small batches, so the 10 thousand plus computers lying in wait for work have quickly grabbed all of them.

The Server Status page only updates about every 3 hours.

One of my computers is permanently deceased, and therefore will not ever complete the tasks that are assigned to it. In most projects, tasks will be marked as "abandoned" if they are not completed before the deadline. But since these tasks won't expire for a full year, they'll just be sitting there waiting for trickles that will never come.

Is there a way to manually cancel them so they can be reassigned to someone else who will be able to complete them properly?

This is the computer in question:
https://www.cpdn.org/results.php?hostid=1510304

Peter -

The deadline issue has been discussed repeatedly over the tears. Basically, if the CPDN is set short (say 6 weeks), CPDN can take over your computer.

Try changing the project priority for CPDN to 100.
Set the project priority for all other projects to 1.

It is not so much sloppy programming that stops this project doing multi-core tasks but the nature of climate modelling which is that each calculation needs the results of the previous calculations in order to proceed. If programmed to use more than one core, this would mean several cores sitting idle much of the time. Therefore running many tasks at once is more efficient for the project.

Es ist nicht so sehr die schlampige Programmierung, die dieses Projekt davon abhält, Mehrkernaufgaben zu erledigen, sondern die Art der Klimamodellierung, dass jede Berechnung die Ergebnisse der vorherigen Berechnungen benötigt, um fortzufahren. Wenn programmiert, um mehr als einen Kern zu verwenden, würde dies bedeuten, dass mehrere Kerne die meiste Zeit im Leerlauf sitzen. Daher ist es für das Projekt effizienter, viele Aufgaben gleichzeitig auszuführen.

It's a pity that CPDN cant check for the libraries before downloading the task files or when LINUX boxes add CPDN as a project.

I agree. I asked about this over on the BOINC forums and no one there came up with ideas about how to do it. I also asked about including the libraries in the downloaded applications but it seems there would be problems with different Linux flavours and version numbers causing compatibility problems.

I just meant that if one were to automate the task of finding computers crashing tasks due to 32 bit library deficiency, the message in stderr would be a good way to do it.

Yes, but does everyone who gets "computer error" next to a task check to see why there is an error? If they did then the same computers wouldn't be throwing up so many failures. The set it and forget it brigade.