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Posts by rbpeake

Posts by rbpeake

1) Message boards : climateprediction.net Science : Climate change in the News (Message 62128)
Posted 17 Feb 2020 by rbpeake
Post:
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]
2) Message boards : climateprediction.net Science : WCG Climate project (Message 61431)
Posted 30 Oct 2019 by rbpeake
Post:
Same here. As the project appears to be new, there are probably some kinks that need to be worked out (hopefully soon!)
3) Message boards : climateprediction.net Science : WCG Climate project (Message 61428)
Posted 30 Oct 2019 by rbpeake
Post:
New weather prediction project from IBM.

https://www.worldcommunitygrid.org/about_us/viewNewsArticle.do?articleId=608
4) Message boards : climateprediction.net Science : Climate change in the News (Message 61208)
Posted 10 Oct 2019 by rbpeake
Post:
Analyzing large climate model ensembles in the cloud.

https://medium.com/pangeo/cesm-lens-on-aws-4e2a996397a1
5) Message boards : climateprediction.net Science : Climate change in the News (Message 60809)
Posted 8 Aug 2019 by rbpeake
Post:
Ensemble Predictions Tend to Cancel Noise of Individual Simulations

http://physicsbuzz.physicscentral.com/2019/08/clarity-from-chaos-how-climate-models.html?m=1
6) Message boards : Number crunching : Upload failures (Message 60439)
Posted 25 Jun 2019 by rbpeake
Post:
One wonders if these issues could have been anticipated. We have done our part!
7) Message boards : Cafe CPDN : Op Ed Piece in the NY Times Regarding Climate Model Computing (Message 60275)
Posted 12 Jun 2019 by rbpeake
Post:
Unfortunately access to the article linked to in the NY Times piece isn't free to access but my understanding of the climate models that we run here is that they use sequential computing with each calculation depending on the result from the previous one. In that scenario, the increased computing power of a supercomputer may not give as much benefit as is suggested.

What is not in doubt is that switching from 25Km squares (the highest resolution of current model types) to 1Km squares would make tasks even on the fastest PC's take several months.

This link may be better (hopefully!).
https://www.nytimes.com/2019/06/12/opinion/climate-change-supercomputers.html
8) Message boards : Cafe CPDN : Op Ed Piece in the NY Times Regarding Climate Model Computing (Message 60273)
Posted 12 Jun 2019 by rbpeake
Post:
Interesting piece from the NY Times regarding computer models for climate change research.
https://www.nytimes.com/2019/06/12/opinion/climate-change-supercomputers.html?action=click&module=Well&pgtype=Homepage&section=Opinion
9) Message boards : Number crunching : New work Discussion (Message 59879)
Posted 23 Mar 2019 by rbpeake
Post:
My Win10 machines have generally been fine.
10) Message boards : Number crunching : New work Discussion (Message 59743)
Posted 8 Mar 2019 by rbpeake
Post:
I too am getting errors:

https://www.cpdn.org/cpdnboinc/result.php?resultid=21509158

https://www.cpdn.org/cpdnboinc/result.php?resultid=21518555
11) Message boards : climateprediction.net Science : Project announcements discussion (Message 59719)
Posted 5 Mar 2019 by rbpeake
Post:
Have any of these work units been issued?
Thanks!
12) Message boards : Number crunching : Miscellaneous problems (Message 54125)
Posted 16 May 2016 by rbpeake
Post:
I understand WAH2 Region Independent. What is the other WAH2? Confused.

Thanks!
13) Message boards : Number crunching : Total Credit (Message 54089)
Posted 13 May 2016 by rbpeake
Post:
Is there a credit delay? Just successful completed the below, and no credit granted.
http://climateapps2.oerc.ox.ac.uk/cpdnboinc/result.php?resultid=19586656
14) Message boards : Number crunching : RAPIT tasks failing after few seconds (Message 49071)
Posted 8 May 2014 by rbpeake
Post:
It appears that approximately 3,000 of these RAPIT units were taken off the server in the past few days. Are the ones I am crunching still valid?

Thanks!
15) Message boards : Cafe CPDN : New US Study--US Already Widely Affected by Climate Change (Message 49055)
Posted 6 May 2014 by rbpeake
Post:
http://nyti.ms/1kI6Brd
Kind of what I have been feeling for quite awhile now. Nice to see it affirmed in an official study!
16) Message boards : Number crunching : CONVERTING TO LINUX (Message 49024)
Posted 2 May 2014 by rbpeake
Post:
Jim

No need to hurry now. The models have been rushed into intensive care.


I assume that we should continue to process the ones we have, and hope they complete sucessfully?

Thanks!
17) Message boards : Number crunching : CONVERTING TO LINUX (Message 48964)
Posted 29 Apr 2014 by rbpeake
Post:
Last night I set up Ubuntu 14.04 in VMWare Player on one machine. Linux is a bit tricky, with me being used to Windows all my life. That being said, the "floodgates" (so to speak) will be opened up for this app once a Windows version is released! Hopefully that is in the works?
18) Message boards : Number crunching : Must set rsc_memory_bound correctly (Message 48667)
Posted 1 Apr 2014 by rbpeake
Post:
FYI, I found this message on another project:
David Anderson wrote:
On further thought, I'm going to change things back to the way they were, namely

1) workunit.rsc_memory_bound is used only by the server;
it won't send a job if rsc_memory_bound > host's available RAM
2) the client aborts a job if working set size > host's available RAM
3) the client will run a set of jobs only if the sum of their WSSs
fits in available RAM (i.e. if a job's WSS is close to all available RAM, it would run that job and nothing else)

The reason for not aborting jobs when WSS > rsc_memory_bound is that
it requires projects to come up with very accurate estimates of RAM usage,
which I don't think is feasible in general.
Also, it will lead to lots of aborted jobs, which is bad for volunteer morale.

-- David


7.3.15 will again have normal values, and will not be using the immediate check of memory used on tasks.
19) Message boards : Number crunching : Cannot Update Project Preferences (Message 48112)
Posted 7 Feb 2014 by rbpeake
Post:
Works now, thanks!
20) Message boards : Number crunching : Cannot Update Project Preferences (Message 48111)
Posted 7 Feb 2014 by rbpeake
Post:
For some reason the project preferences update is not functioning. It will not upload revised preferences.

Thanks!


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