Index  | Recent Threads  | Unanswered Threads  | Who's Active  | Guidelines  | Search
 

Quick Go »
No member browsing this thread
Thread Status: Active
Total posts in this thread: 8
[ Jump to Last Post ]
Post new Thread
Author
Previous Thread This topic has been viewed 2180 times and has 7 replies Next Thread
Richard Mitnick
Veteran Cruncher
USA
Joined: Feb 28, 2007
Post Count: 583
Status: Offline
Project Badges:
Reply to this Post  Reply with Quote 
Problems at C4CW and CAS@home

There appear to be problems at both C4CW and CAS@home? Any news about any of this?
----------------------------------------
[Mar 25, 2012 8:09:34 PM]   Link   Report threatening or abusive post: please login first  Go to top 
Former Member
Cruncher
Joined: May 22, 2018
Post Count: 0
Status: Offline
Reply to this Post  Reply with Quote 
Re: Problems at C4CW and CAS@home

What's the operational relation between C4CW running at WCG and CAS? All I know from reading months ago, that CAS was/is working with the BOINC (7) developers to get something done with a LAMMPS port, the engine used by C4CW at WCG.

BTW, we send the C4CW data to Australia, not China, and the Australia end of a server issue was resolved early December when we started on Target 4 [Target 5 being readied, for when T4 ends whenever]

--//--
[Mar 25, 2012 8:29:30 PM]   Link   Report threatening or abusive post: please login first  Go to top 
Richard Mitnick
Veteran Cruncher
USA
Joined: Feb 28, 2007
Post Count: 583
Status: Offline
Project Badges:
Reply to this Post  Reply with Quote 
Re: Problems at C4CW and CAS@home

Sek-

If you visit C4CW's WCG page , you see a link to the Computing for Clean Water website. Click on that link, you will be taken to Tsinghua University, CNMM, Center for Nano and Molecular Mechanics, and the page is all about C4CW. C4CW grew out of CAS@home, which is based in the CNMM at Tsinghua. (My understanding, which I can not back up, is that the idea for the C4CW project originated in Chinese Academy of Sciences, in the group running CAS@home; but that they either could not or did not choose to run the project themselves, and so spun it off to a group who brought it to WCG).

Also, if you look at the C4CW screen saver, you will see the CNMM logo.

Now, CAS@home has hit some sort of rough patch, or is in some sort of unstated or understated hiatus. Work units are erroring out for many attached to the project. When I saw that, I came to the C4CW forums and saw threads regarding problems with WU's. So, I am left to wonder if there is something systemic going on.
----------------------------------------
----------------------------------------
[Edit 1 times, last edit by mitrichr at Mar 26, 2012 1:34:40 AM]
[Mar 26, 2012 12:58:29 AM]   Link   Report threatening or abusive post: please login first  Go to top 
Former Member
Cruncher
Joined: May 22, 2018
Post Count: 0
Status: Offline
Reply to this Post  Reply with Quote 
Re: Problems at C4CW and CAS@home

Hello mitrichr,
Everything is going fine with C4CW. Some months ago Sekerob asked if anyone knew what was going on at Tsinghua and would it affect us. I followed his links and saw that they were working through some problems. But we were never affected. So I have come to believe that they are doing some development work outside the WCG framework. This is just a guess on my part - - but I will only pay attention to what happens on our site.

Lawrence
[Mar 26, 2012 2:08:07 AM]   Link   Report threatening or abusive post: please login first  Go to top 
Richard Mitnick
Veteran Cruncher
USA
Joined: Feb 28, 2007
Post Count: 583
Status: Offline
Project Badges:
Reply to this Post  Reply with Quote 
Re: Problems at C4CW and CAS@home

Lawrence-

Thanks for the reassurance.
----------------------------------------
[Mar 26, 2012 11:22:42 AM]   Link   Report threatening or abusive post: please login first  Go to top 
Former Member
Cruncher
Joined: May 22, 2018
Post Count: 0
Status: Offline
Reply to this Post  Reply with Quote 
Re: Problems at C4CW and CAS@home

Some volunteers have been wondering about the relationship between C4CW, Tsinghua University and CAS@home. So here's a brief explanation:

CAS@home is a project initiated by the Chinese Academy of Sciences (CAS), to set up the first BOINC server for science in China at the CAS Institute of High Energy Physics. It currently runs a protein structure prediction programme for the CAS Institute of Computing Technology.

CAS@home is going through a major overhaul, which may explain some hiccups recently, and will be announcing several new projects soon. One of these will run LAMMPS simulations for some of our colleagues here at CNMM, Tsinghua University, but for different sorts of applications. These applications will generally run on a much smaller scale than C4CW, since the number of volunteers on CAS@Home is much smaller than on WCG.

By the way, one of our partners on C4CW is a research group at the University of Sydney, and as some volunteers have correctly spotted, the data from C4CW is actually shipped there, and not to Beijing, because the connectivity to our servers at Tsinghua is not reliable enough.

A common thread to CAS@home and C4CW is the Citizen Cyberscience Centre based at CERN in Geneva, which promotes volunteer computing and related technologies for developing regions, and which was instrumental in catalysing both of these projects.
[Mar 31, 2012 3:16:53 AM]   Link   Report threatening or abusive post: please login first  Go to top 
Richard Mitnick
Veteran Cruncher
USA
Joined: Feb 28, 2007
Post Count: 583
Status: Offline
Project Badges:
Reply to this Post  Reply with Quote 
Re: Problems at C4CW and CAS@home

joegert00 -

Thanks. But you did not state the connection, to whit, if I click on the C4CW project home page at WCG, as in

"Information about this project is provided on the web pages below and by the project scientists on the Computing for Clean Water website ....", one is taken to CNMM at Tsinghua, and the page has the title "The Computing for Clean Water Project (C4CW)".

So, please elucidate this connection. My understanding was that the idea was born in CNMM, based in nanotechnology, but that at CNMM there were not the resources to get it going, so it was essentially spun off to the group who run it as a WCG project.

Please fill us in. It is nice to see that there is collaboration. Another project on which I crunch, based at a university here in the U.S., I found in collaboration with a renowned basic science lab here in the U.S.A. which I follow on my ScienceSprings blog. These connections are always cool. Fermilab has commissions to build equipment for the LHC. Brookhaven builds for both Fermilab and the LHC. That is cool stuff.

So, fill us in on your story.

Thanks.
----------------------------------------
[Apr 1, 2012 12:42:32 AM]   Link   Report threatening or abusive post: please login first  Go to top 
Former Member
Cruncher
Joined: May 22, 2018
Post Count: 0
Status: Offline
Reply to this Post  Reply with Quote 
Re: Problems at C4CW and CAS@home

Hello,
C4CW is a collaboration between WCG and CNMM, Tsinghua. The research on flow in nanotubes is being done by our team at CNMM, and the volunteer computing infrastructure for doing the simulations is kindly set up and maintained by the WCG team. C4CW started independently of CAS@home. The link between the two is CNMM who is also collaborating with the IHEP team that manages CAS@home, to use volunteer computing for other types of research.
[Apr 16, 2012 1:13:45 AM]   Link   Report threatening or abusive post: please login first  Go to top 
[ Jump to Last Post ]
Post new Thread