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Posts by Dave Roberts

Posts by Dave Roberts

1) Message boards : Number crunching : New work Discussion (Message 65423)
Posted 5 May 2022 by Dave Roberts
Post:
Yes, all OK with downloads -= thanks.
2) Message boards : Number crunching : New work Discussion (Message 65420)
Posted 5 May 2022 by Dave Roberts
Post:
Hi Folks,
I have 2 Macs that have been trying to download 'Short' tasks since since yesterday. Only just noticed as I hadn't expected any to be available.

Any problems at the site?

Getting the messages :-
Wed 4 May 02:15:46 2022 | climateprediction.net | Temporarily failed download of ozone_cmip6hist+ssp126_2014_2026.gz: connect() failed
Wed 4 May 02:15:46 2022 | climateprediction.net | Backing off 00:03:25 on download of ozone_cmip6hist+ssp126_2014_2026.gz
Wed 4 May 02:15:46 2022 | climateprediction.net | Temporarily failed download of hadcm3s_1mwo_201412_132_930_012138554.zip: connect() failed
Wed 4 May 02:15:46 2022 | climateprediction.net | Backing off 00:03:49 on download of hadcm3s_1mwo_201412_132_930_012138554.zip
Wed 4 May 02:15:46 2022 | climateprediction.net | Started download of 1mwo_2014.ostart.gz
Wed 4 May 02:15:46 2022 | climateprediction.net | Started download of 1mwo_930_atmos.gz
Wed 4 May 02:15:47 2022 | | Internet access OK - project servers may be temporarily down.
Wed 4 May 02:17:03 2022 | | Project communication failed: attempting access to reference site
Wed 4 May 02:17:03 2022 | climateprediction.net | Temporarily failed download of 1mwo_2014.ostart.gz: connect() failed
Wed 4 May 02:17:03 2022 | climateprediction.net | Backing off 00:02:01 on download of 1mwo_2014.ostart.gz
Wed 4 May 02:17:03 2022 | climateprediction.net | Temporarily failed download of 1mwo_930_atmos.gz: connect() failed
Wed 4 May 02:17:03 2022 | climateprediction.net | Backing off 00:02:19 on download of 1mwo_930_atmos.gz
Wed 4 May 02:17:03 2022 | climateprediction.net | Started download of hadcm3s_1bt6_201412_132_930_012138085.zip
Wed 4 May 02:17:03 2022 | climateprediction.net | Started download of 1bt6_2014.ostart.gz
Wed 4 May 02:17:04 2022 | | Internet access OK - project servers may be temporarily down.
3) Questions and Answers : Getting started : Copy / Paste (Message 65190)
Posted 20 Feb 2022 by Dave Roberts
Post:
Hi,
How does one copy text from a file into a message (such as here) or alternatively, include an image?
Thanks in advance.
Dave Roberts
4) Questions and Answers : Macintosh : Resume option not activating tasks (Message 63846)
Posted 12 Apr 2021 by Dave Roberts
Post:
No idea how to do screenshot on Mac but your description seems clear enough to me. What happens when you click on the Suspend button? Is it possible that in the manager you clicked on Activity>Suspend instead of suspending individual tasks?

Thanks for your reply Dave, yup, I'd suspended activity as well - for some (now) unknown reason.
5) Questions and Answers : Macintosh : Resume option not activating tasks (Message 63844)
Posted 12 Apr 2021 by Dave Roberts
Post:
Hi Les, apologies for the confusion, I don't know why I'd suspended the Activity having suspended the tasks - something of an oversight.

Re copying - yes, the event log has a copy button at the bottom of the log but only for copying event messages - as far as I can see - not external data or files.
6) Questions and Answers : Macintosh : Resume option not activating tasks (Message 63842)
Posted 12 Apr 2021 by Dave Roberts
Post:
Thanks Les - forgot I'd changed the activity.
7) Questions and Answers : Macintosh : Resume option not activating tasks (Message 63837)
Posted 11 Apr 2021 by Dave Roberts
Post:
Imac - High Sierra
Bit of a strange one here.
Had to do some maintenance, so suspended Tasks and Project followed up by backup.
Eventually recovered from backup and went to restart BOINC.
Resumed Project - no problem - but for the tasks the Suspend/Resume button showed 'Suspend' even though the tasks were Suspended.

Aah, how do I copy/paste a screenshot to a message? Is it possible?
8) Message boards : Number crunching : Welcome back/checking if everything is working? (Message 62745)
Posted 4 Oct 2020 by Dave Roberts
Post:
Hi Guys,
Re.
UK Met Office Coupled Model Full Resolution Ocean
Weather At Home 2 (wah2) (region independent)
UK Met Office HadAM4 at N144 resolution

Just a thought.
Now that there's not been any new projects for some months. the 'In progress' numbers for these applications are obviously defunct. They were actually at this level a long time before the pandemic hit the world.
They must be hoarded WU's that are past their useful date. None of the users have registered for months.
Couldn't they be zeroed?
9) Message boards : climateprediction.net Science : Climate change in the News (Message 62134)
Posted 19 Feb 2020 by Dave Roberts
Post:
Re Isambard 2.
On top of the news by rbpeake , Message 62128
----------------------------------------------------------------------------------------------------------------------------------------------------
"Met to get a new supercomputer. https://news.sky.com/story/met-office-to-get-16312bn-supercomputer-to-improve-weather-and-climate-forecasting-11936162[/code]" -

1.2 billion investment has been confirmed for a state-of-the-art supercomputer to improve severe weather and climate forecasting,

A supercomputer which can forecast weather and climate 18 times faster than current technology is set to be developed. Data from the supercomputer will be used to inform Government policy as part of leading the global fight against climate change and meeting net zero emission targets.

Predicting severe weather and the impacts of climate change will be faster and more accurate than ever before, thanks to confirmation of £1.2 billion government funding to develop a state-of-the-art supercomputer, Business and Energy Secretary and COP26 President Alok Sharma announced today (17 February 2020).
-----------------------------------------------------------------------------------------------------------------------------------------------------
That's quite something.

Having said that, I have some sympathy with critics :-

But Clara Goldsmith from the Climate Coalition, the UK's largest group dedicated to action against global warming, says that while investing in such technology is important, "what's just as important is that we invest in solutions to climate change that will stop this problem getting worse".
and
But Eric Brotherton, from Ribchester in Lancashire, believes the money would be better spent now helping people like him who are repeatedly left to protect their own homes from flood water.
"£1.2bn on a computer?" he said. "No... It's got to be people first then the computer in my opinion."
10) Questions and Answers : Unix/Linux : Choice of Unix distro? (Message 62068)
Posted 30 Jan 2020 by Dave Roberts
Post:
Hi All,
With CPDN seeming to favour Unix based models in the short/medium term future, I thought I look at using my VMWare Fusion software to advantage.
So, I looking to run a Unix distro in VMWare Fusion on my Mac. Possibly with the intention of moving away from OSX as my main OS (Lengthy story) altogether in the future.
My first thoughts were to look at those distro’s were the most Mac like. (Strong personal preference over Windows.)
Initially, the one that drew my attention the most was ‘elementary OS’ especially since it was a Unbuntu variant.
Then I found that it appeared to be resource intensive in a VM environment, certainly in Virtual Box, although I couldn’t find any reference to VMWare Fusion, which is what I use.
Second variant was ‘Deepin’, although I hadn’t heard of it before.
I’d be grateful for any thoughts/advice/recommendations in this area.

PS My attachment to Fusion is because I run Windows 7 in Fusion with incredibly low overhead. ( On both iMac & Macbook Pro)
11) Message boards : Number crunching : No new tasks for over a month (Message 60883)
Posted 29 Aug 2019 by Dave Roberts
Post:
"I can see that others are still working on tasks, but I haven't been assigned any new tasks sine June. Any suggestions on what is going on?"

CPDN batches of work come mainly from projects of research groups around the world and none have been submitted for a while.

Incidentally, work for us volunteers, from CPN, is not dependent on Oxford academic terms, neither is routine maintenance and/or development of the system. Academic terms are simply there for the undergraduate student teaching activities at the university.
The other work of the university, research, administration etc., carries on in exactly the same way as work in other parts of the economy with holiday times in no way much different.

As the CPND website says, “CPDN is a team of 13 climate scientists, computing experts and post graduate students working on this project, as well as our partners and collaborators working at other universities, research and non-profit organisations around the world.”
The CPDN project takes place within the the Oxford e-Research Centre, which is a multidisciplinary applied research department.

These people work ‘normal’ hours and are not simply there only during university ‘student’ terms. A small caveat being that, as is normal in academic activities, some of these people may be away, at different times, on conferences or other activities related to their work.

We should also remember that these people have work associated with other projects. (Funding issues?)

A very large proportion of the work that is put out by CPDN are projects from researchers around the world which take time to be designed and set up as well as the results analysed and prepared for publication.

There’s not much way in which CPDN (staff or volunteer administrators) can get to know when or from where such work is likely to come.

We just have to be patient.
12) Message boards : Cafe CPDN : This climate change has results beyond the physical .... (Message 60648)
Posted 12 Jul 2019 by Dave Roberts
Post:
There's more than a slight chance that anthropogenic global warming could trigger a runaway scenario ending in global conditions that would last millions of years.
eg Release of all the methane in the Tundra.

Look at the Eocene conditions for comparison, lasting 23 million years.

Once planetary climatic conditions become extreme, there are no quick solutions even in geological timescales. Recovery from the KT impact was in the order of 4 to 9 million years.

At the opposite end of the spectrum, the two Snowball Earth scenarios both lasted 10 million years.
13) Message boards : Number crunching : Certificate authentication (Message 60627)
Posted 10 Jul 2019 by Dave Roberts
Post:
Thanks Les.

Well, The problem vanished this morning and the trickle uploaded.

The problem has been there for a few weeks but I hadn't noticed it as all zips were going up OK so hadn't bothered to look at the log file.

A strange one because I initially thought it was my internet connection but obviously not since zips were OK at the same time that I was getting the message.

I'm on BOINC 7.14.2 so that wasn't the problem.

I'll reply on the BOINC board as well.
14) Message boards : Number crunching : Certificate authentication (Message 60620)
Posted 8 Jul 2019 by Dave Roberts
Post:
Thanks Les
15) Message boards : Number crunching : Certificate authentication (Message 60618)
Posted 8 Jul 2019 by Dave Roberts
Post:
Windows 7 in VirtualBox - latest version of BOINC
One of my tasks :-

wah2_sam50_n301_199312_24_822_01187763_0

is having a problem uploading a trickle with the message :-

Climateprediction.net | scheduler request failed: Peer Certificate cannot be authenticated with given CA certificates

No other associated messages such as "Transient error" message

Zips uploading OK.

Anyone seen this before - can't find anything on the boards relating to trickles.
16) Message boards : Number crunching : Upload failures (Message 60581)
Posted 4 Jul 2019 by Dave Roberts
Post:
I do believe that Les understands the figures. It seems to me that he was simply replying to those who do come onto the boards but ignore his advice and continue to complain.
Actually there have been 5410 visit to this post, at this point, which is a lot more than the no. of replies so it would appear that many people probably have seen the post and may very well have acted accordingly.
17) Message boards : Number crunching : Upload failures (Message 60579)
Posted 4 Jul 2019 by Dave Roberts
Post:
CPDN has a track record of computation errors when suspending tasks so I sure ignored that part. I don't blame any one else for it either.


I have two dual booted Mac systems and a Dell with Windows 7 all of which are run

ning CPDN. the two Macs have Fusion virtual machines running CPDN under Windows 7. (When there are no native MAC jobs available)

I have to swap between the OSX versions on the Macs relatively frequently and have never had any problems with errors of any sort except once at the very beginning when I started to do this. I've now been doing this for years whilst testing variations of RCA software.

The one problem I had at the beginning, occurred when shutting down Fusion before suspending CPDN which was in the middle of a Zip upload.

Since than I've always made sure there are no uploads running before suspending CPDN and only then suspending Fusion. (I always suspend the tasks before suspending the project although I don't have any obvious reason to think that this is strictly necessary.)

Also, I've never had a problem on the Dell with suspending, after taking similar suitable precautions.
18) Message boards : Number crunching : Upload failures (Message 60560)
Posted 2 Jul 2019 by Dave Roberts
Post:
Thanks Jim. So WCG is an IBM CLOUD based operation using BOINC in the same way as CPDN on behalf of a group of research projects which come & go. As you say, a different level of resources.
19) Message boards : Number crunching : Upload failures (Message 60549)
Posted 2 Jul 2019 by Dave Roberts
Post:
Hi Jim, What sort of advantage does WCG offer volunteer computing over connecting via BOINC directly, since one gets connected to BOINC anyway when joining WCG.
20) Message boards : Number crunching : Upload failures (Message 60547)
Posted 2 Jul 2019 by Dave Roberts
Post:
This is nothing special! World Community Grid get hammered with several TB every day with more computers than CPDN... even more during Pentathlon


I'm not sure that this is comparable.
WCG isn't a single project and uses BOINC to link to projects just as one can do via BOINC directly. So the total upload to WCG is spread over all those projects that are currently in operation. I would assume uploads to a WCG project go directly to the computers run by the project, just as in the case of CPDN, not to some mega computing site.
The 128 Mb files that Dave mentions, appear to have been for a one off completed project, not at all similar to the continuous (more or less) streams of CPDN research projects.


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