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Posts by geophi

Posts by geophi

1) Message boards : Number crunching : New work Discussion (Message 65459)
Posted 8 days ago by Profile geophi
Post:
I'm getting the "Model crashed: INANCLA: Error opening file " error in stderr as well, but the tasks finish successfully and upload all zips and trickles. I brought that error up on the dev site and they said it wasn't an issue and everything was returned as expected.
2) Message boards : Number crunching : New work Discussion (Message 65453)
Posted 9 days ago by Profile geophi
Post:
Dave, do you also have an Intel PC? If so, have you tried setting up a macOS VM on it? For me, I couldn't get it to work on Ryzen 5900X but did on i7-4790 (both Windows 10).

Andrey,

Both SolarSonyk and I have had success on AMD Ryzens with Mac guests on a Linux host. Whatever problem you are having with VirtualBox in Windows on AMD, isn't translating to KVM on a Linux host.
3) Questions and Answers : Windows : macOS Mojave installation on Windows 10 with VirtualBox (Message 65393)
Posted 25 days ago by Profile geophi
Post:
Just released...656 HADCM3S work units in batch 930 for Intel Macs.
4) Questions and Answers : Unix/Linux : Running 32-bit MacOS Tasks on Linux with KVM (Message 65392)
Posted 25 days ago by Profile geophi
Post:
Just released...656 HADCM3S work units in batch 930 for Intel Macs.
5) Message boards : Number crunching : New work Discussion (Message 65391)
Posted 25 days ago by Profile geophi
Post:
Just released...656 HADCM3S work units in batch 930 for Intel Macs.
6) Message boards : Number crunching : New Work Announcements (Message 65390)
Posted 25 days ago by Profile geophi
Post:
Just released...656 HADCM3S work units in batch 930 for Intel Macs.
7) Message boards : Cafe CPDN : Climate model code is so outdated, MIT starts from scratch (Message 65369)
Posted 14 Apr 2022 by Profile geophi
Post:
Typical Register article. I'd be interested in hearing what a long list of respected climate scientists think of this article, and the claims in the proposal.


Reading through it (which I hadn't done before my previous comment) there is at least one point of contention and that is that some of the current models using the Met Office code use 25 or 50Km squares rather than the 200Km resolution they refer to in the article though that was almost certainly true when I first came to CPDN.


That was what I saw too. Many models around the world are using higher resolution than they stated. It will be interesting to see if anything in forecast improvement will come out of this effort. Perhaps so, but the claims, like in many research proposals, are likely exaggerated or overly optimistic.
8) Message boards : Cafe CPDN : Climate model code is so outdated, MIT starts from scratch (Message 65366)
Posted 14 Apr 2022 by Profile geophi
Post:
Typical Register article. I'd be interested in hearing what a long list of respected climate scientists think of this article, and the claims in the proposal.
9) Message boards : Number crunching : No work for Windows OR Linux?! (Message 65344)
Posted 12 Apr 2022 by Profile geophi
Post:
I did say over on the BOINC boards that the 32bit libraries needed to be installed though not having them doesn't stop you downloading work, it just makes it all crash.

Dave, I've had both happen. It won't download work, or it immediately crashes if 32 bit libraries are not installed. May depend on the distribution or other things that are installed before boinc and cpdn.
10) Message boards : Number crunching : New Work Announcements (Message 65329)
Posted 6 Apr 2022 by Profile geophi
Post:
Batch 929 just released. Another 2568 work units of HADAM4 N144 model tasks for Linux.
11) Questions and Answers : Unix/Linux : Running 32-bit MacOS Tasks on Linux with KVM (Message 65302)
Posted 16 Mar 2022 by Profile geophi
Post:
and can I abort those two dropped WU from the cpdn site so that they get re-assigned promptly?
leloft

Once you are done with the tasks you can see in the task list, if you detach the computer from cpdn, the tasks should show up as abandoned in your task list, and should be available to download to other PCs. That is if these tasks didn't have task names with an _2 at the end, which means that they were the last of the 3 tasks issued from a work unit.
12) Questions and Answers : Windows : macOS Mojave installation on Windows 10 with VirtualBox (Message 65256)
Posted 9 Mar 2022 by Profile geophi
Post:
Your computer details say 5 processors. I've read elsewhere that Macs require processors to be in "powers of 2". Set it to 4 instead of 5 in VirtualBox and see if it makes any difference.
13) Questions and Answers : Windows : macOS Mojave installation on Windows 10 with VirtualBox (Message 65254)
Posted 9 Mar 2022 by Profile geophi
Post:
I'll try to find a way to see what CPU features the macOS says are supported/enabled. What CPU features are required for CPDN?

SSE2 is the base requirement, so any PC made after 2003 should have it.
14) Questions and Answers : Windows : macOS Mojave installation on Windows 10 with VirtualBox (Message 65239)
Posted 7 Mar 2022 by Profile geophi
Post:
Nice! Glad to see the 32-bit MacOS love extended to Windows.

You don't need 4GB per CPU core, though. The current MacOS tasks only use a few hundred meg per task, tops. I only see ~150MB working set size per task running in my "Mojave on Linux" VMs. I'm running 4C/4GB VMs without any issues at all.

Those remaining tasks aren't long for the queue, for sure!

Well you are the one burning through them with your 4 Penryns. :-) There aren't really any others with "Macs" on the computer stats leader boards. Of course the hadcm3s is really under performing in the credits per compute time as it has always been.
15) Questions and Answers : Windows : macOS Mojave installation on Windows 10 with VirtualBox (Message 65237)
Posted 6 Mar 2022 by Profile geophi
Post:
@wateroakley
I'm used to pretty good performance of Linux VMware guests on this PC (4 threads of an i7 7700HQ, 16 MB of RAM allocated to VM, 100 GB fixed HD space in VM). I'm noticing considerable mouse lag as I move the cursor around in the VM window. Are you noticing the same thing too? I did perform some of the MacOS tweaks for VM performance listed at https://github.com/sickcodes/osx-optimizer.
The mouse does not lag on this macOS VM. Did you enable the guest additions, which provide better integration for mouse and keyboard ?

Yep, I did that.

I see your CPU is listed as having a boinc benchmark FP score of 1 billion ops/sec. It might be good to get a better initial estimate of task time by running a manual benchmark in boinc.
The mac VM is running at 1.08 s/TS with four HADCM3s, about 4.6 days run time (calculated). I see that your mac VM task is about 15% faster, which is expected for an i7-7700 vs i7-3770.

I think my PC is only faster because I'm only running 1 task at a time as opposed to the 4 you appear to be running at the same time. I didn't mean that the benchmark thing would improve your PC's performance, or that it's only capable of such low FP performance that is represented by 1 billion ops/sec, I meant that boinc uses the benchmark to estimate how long the task will take in boinc manager tasks tab and getting a realistic benchmark gives a more reasonable estimate of time to completion (still too long though).

At the end of the instructions for the VirtualBox VM, I see it links to similar instructions for VMWare. :-) I may give that a go as I'm very used to using that hypervisor, and it would allow me to run both Linux and Mac VMs at the same time (although that i7 doesn't have very many threads for doing that).
Let us know how you get on with the VMWare VM.

Upon further review, I would have to load an old version of VMWare Workstation, then hope my current VMWare VMs still work. Also, according to the comments, the convoluted instructions may include files that no long work with Mohave. Still, I may give it a try after I complete this task in VirtualBox.
16) Questions and Answers : Windows : macOS Mojave installation on Windows 10 with VirtualBox (Message 65235)
Posted 5 Mar 2022 by Profile geophi
Post:
If you are thinking of installing macOS Mojave on Windows 10 with VirtualBox, the instructions in this link worked for me.

These are links to the VB and mac files:
VirtualBox executable 6.1.32 for Windows
VirtualBox Extension Pack
Mojave ISO file download (about 7GB)
Windows commands to set up VirtualBox

Suggested macOS VM settings: Disc (SSD) = 100GB. Memory = 16GB. CPU = 4. Be patient at Step 7 (9) when you install the macOS, it took a lot longer than the suggested 15-29 minutes. I don’t know exactly how long, as I left it running after 60 minutes, with the timer countdown still saying 14 minutes. It was all done when I came back next morning.

Good luck.

Well, I did it. Quite the series of steps to go through. Mohave is now running in VirtualBox.

@wateroakley
I'm used to pretty good performance of Linux VMware guests on this PC (4 threads of an i7 7700HQ, 16 MB of RAM allocated to VM, 100 GB fixed HD space in VM). I'm noticing considerable mouse lag as I move the cursor around in the VM window. Are you noticing the same thing too? I did perform some of the MacOS tweaks for VM performance listed at https://github.com/sickcodes/osx-optimizer.

I see your CPU is listed as having a boinc benchmark FP score of 1 billion ops/sec. It might be good to get a better initial estimate of task time by running a manual benchmark in boinc.

At the end of the instructions for the VirtualBox VM, I see it links to similar instructions for VMWare. :-) I may give that a go as I'm very used to using that hypervisor, and it would allow me to run both Linux and Mac VMs at the same time (although that i7 doesn't have very many threads for doing that).

Thanks for posting links to the instructions!
17) Questions and Answers : Unix/Linux : Running 32-bit MacOS Tasks on Linux with KVM (Message 65220)
Posted 28 Feb 2022 by Profile geophi
Post:
Sounds about right, they're touchy on restore, like most of the rest.

I've actually had better luck with just killing the VM entirely than trying to suspend tasks if I need to power cycle something - suspend/resume cycles are likely to kill 40-60% of the running tasks, and a power cut kills fewer. I'm trying not to do that, though - like all the CPDN tasks, they're best left running, non-stop, until completion. I have a bunch of solar powered systems that I just suspend at night (suspend the host, not the guest), and that works fine too - they've been CPDN crunch boxes for a while and are quite reliable in that way.


If you do do the suspend tasks thing and then exit boinc before shutting the vm down, check the associated slots directories. If there are files listed with a "finished" in the filenames in those directories, delete those files. When the boinc client starts up and sees those files, it will think the task is over and error out. Usually it will have some error listed in stderr like "finish file present too long" and have an exit status of "194 (0x000000C2) EXIT_ABORTED_BY_CLIENT".
18) Questions and Answers : Unix/Linux : Running 32-bit MacOS Tasks on Linux with KVM (Message 65217)
Posted 27 Feb 2022 by Profile geophi
Post:
Well, that was discouraging. We had a power cut this morning. Bringing up my linux PC, then the MacOS VM, 3 of the 6 tasks that were running (and 13 model months along) immediately crashed.
19) Message boards : Number crunching : News and Announcements 3 (Message 65212)
Posted 25 Feb 2022 by Profile geophi
Post:
Looks like things are back up. Latest from Andy...

Hi All,

Just to let you know the main CPDN project and dev project are now back online.

Best wishes,

Andy
20) Message boards : Number crunching : News and Announcements 3 (Message 65210)
Posted 24 Feb 2022 by Profile geophi
Post:
All my hadcm3s zips went up fine, it's just the trickles and successful completion requests that are told the server is temporarily down. Perhaps the hadcm3s zips are going up to a different server (non-Oxford) than the hadam4 zips and that's why we are seeing a difference with them.


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