21) Message boards : Number crunching : 14 cores available and no work (Message 23162)
Posted 21 Sep 2011 by mitrichr
Post:
Now on five machines and I immediately got a WU on two of them. That is a good omen for the future, let us hope.
22) Message boards : Number crunching : 14 cores available and no work (Message 23161)
Posted 21 Sep 2011 by mitrichr
Post:
O.K., all done, and I added 8 more cores.

I hope that all of you folks are also up on LHC@home 2.0. We are making great strides. We have about 2500 people with credit, we at at a bit over 1 TeraFLOP. It's a wee bit of s struggle for some, what with running the WU's in an Oracle VM in Scientific Linux. But, that should be duck soup for a lot of you folks.
23) Message boards : Number crunching : 14 cores available and no work (Message 23160)
Posted 21 Sep 2011 by mitrichr
Post:
Thanks, it's all news to me, but I will take care of it.
24) Message boards : Number crunching : 14 cores available and no work (Message 23155)
Posted 20 Sep 2011 by mitrichr
Post:
I have fourteen cores available on four fast machines, all with credit, but none with any work in the history, so nothing in the past 30 days.
25) Message boards : Number crunching : LHC@home 2.0 is up and running (Message 22840)
Posted 8 Aug 2011 by mitrichr
Post:
LHC@home 2.0 is on its way. We are in beta, with about 2000 people. There is a great article at

http://www.interactions.org/cms/?pid=1030964

We need all of the help we can get to make this a stellar project. There are great and very serious people attached to this project, scientists, I/T people, administrators.

We need as many people as we can get to scale this up.

The url for the project is http://boinc01.cern.ch/
26) Message boards : Number crunching : Why is project asking for jobs for GPU (Message 22745)
Posted 2 May 2011 by mitrichr
Post:
metalius-

Thanks for your reply. I did the update, I will see what happens.

I now have a further question, since I have LHC@home on 5 machines, I checked the installs on all of them and any work history. One machine and one only an i7-920 has very recent multiple WU\'s completed and validated. The other four show nothing since 2008.

What can I look for to see if there are problems on those machines.

I am very enamored of the LHC and CERN, so I would like to do as much work for LHC@home as I can, If you can guide me as to what to look for, that would be great.

27) Message boards : Number crunching : Why is project asking for jobs for GPU (Message 22743)
Posted 30 Apr 2011 by mitrichr
Post:
I was reading in Messages in BOINC Manager on one of my machines and it said LHC is asking for work for GPU.

I do not crunch on GPU, in BOINC Manager Preferences the GPU box is NOT checked.

I looked in Computing Preferences and LHC@home Preferences on the project\'s web page and I saw nothing about GPU in any profile or anywhere else.

How do I get this fixed?

Thanks
28) Message boards : Number crunching : Two announcements (Message 22741)
Posted 25 Apr 2011 by mitrichr
Post:
1) The LHC is back up and running you can follow its progress on the CERN twitter feed @CERN or the @lhcstatus feed. The latter is actually a scrape of the screens that the physicists watch to monitor the LHC machine.

2) LHC@home is also back. After a long quiet period we have new studies to work on. The executable has been updated (which is why there is not a Linux version available yet) and the project is now crunching simulations for the LHC upgrade. The team at CERN are working on the Linux executable and the team at QMUL are looking at the server code and are hoping to update that soon.

This is all I will say for the moment. However LHC@home is being used for beam studies from the LHC machine running actual data from the experiments is unlikely as the code has been written for the grid and the datasets are measured in 100s of gigabytes. We have been looking into other LHC uses for the project but it is not easy.


I do not know why my name is attached to this message, I did not write it.
29) Message boards : LHC@home Science : How do I know when my cmputer connects to \"LHC\" (Message 22740)
Posted 25 Apr 2011 by mitrichr
Post:
I just watched a video about LHC@home in a list of videos sent out by Dave Anderson from a recent conference.

The speaker said that they had arranged for WU\'s from LHC but for Linux only. Is there any way to communicate to them how many possible machines they are giving up by not wanting to deal with Windows?
30) Message boards : Cafe LHC : The animated .gif at About LHC@home (Message 22732)
Posted 19 Apr 2011 by mitrichr
Post:
There is an animated.gif on the About site. Is there any way to get it put up as a YouTube video for posterity? It is wonderful.
31) Message boards : Number crunching : Maximum elapsed time exceeded (Message 22481)
Posted 17 Aug 2010 by mitrichr
Post:
I have to say, this is all very disheartening.

From what I can gather, the BOINC software includes measures of reliability of a host. If some number of WU\'s fail, the host is deemed unreliable and will not be sent any more WU\'s.

If the WU\'s are faulty to begin with, then we are doomed as participants in this noblest of all projects.

Those 7500 or so of us out of the approximately 90000 participants who have stuck out all of the starts and stops, we deserve the opportunity to work and make a contribution.
32) Message boards : Cafe LHC : There is definitely new work at lhc@home (Message 22462)
Posted 10 Aug 2010 by mitrichr
Post:
I just checked four machines I have on this project. All received WU\'s in the past two months and all were completed successfully.

Maybe if the powers that be at lhc@home used some of the social networking like Facebook and Twitter, and the news utilities like RSS feeds, we could rebuild our member base. BOINC, SETI, and World Community Grid are doing very well with these tools.

Lhc@home, based on data at BOINCStats, has had 89,303 users with 218,339 hosts. That\'s not chopped liver. We currently still have 9422 users with 13,593.

If people knew that there is work, maybe they would come on back.

If we are to get work, to be a part of this project, we need to impress with numbers, and we need to get those numbers by hook or crook.

I will be frank, I crunch on twelve projects running BOINC software. I run five machines flat out 24/7/365. Lhc@home is my favorite project because of the implications of the research.

I want us to succeed in producing the same sort of teraflops of data for lhc@home that we do of Rosetta@home, projects under the rubric of World Community Grid, and the like.

Please do what you can to help.
33) Message boards : Cafe LHC : How long are we going to wait for work from the server (Message 22461)
Posted 10 Aug 2010 by mitrichr
Post:
I just checked four machines I have on this project. All got WU\'s in the last two months and completed them successfully.
34) Message boards : Cafe LHC : Whatever happened to LHC@home....apologies and thanks. (Message 22460)
Posted 10 Aug 2010 by mitrichr
Post:
I just checked four machines I have on this project. All had WU\'s in the last two months and completed all of them successfully.
35) Message boards : Number crunching : Please note: this project rarely has work (Message 22459)
Posted 10 Aug 2010 by mitrichr
Post:
I just checked the four machines I have on this project. In the last two months, all machines have gotten WU\'s and completed all of them successfully.
36) Message boards : Number crunching : Sure wish I could get work directed to one machine (Message 22350)
Posted 27 May 2010 by mitrichr
Post:
I have gotten several WU\'s, 33 hrs, and completed them by the skin of my teeth on the completion dates running high priority on Core 2 Duo T7200 4 gigs DRAM.

But, I have an i7-920 quad hyper threaded, 6 gigs DRAM, which would blow these WU\'s away. Is there any way to get work directed to a particular machine.

I love this project.
37) Message boards : Number crunching : Confused on WU error (Message 22336)
Posted 20 May 2010 by mitrichr
Post:
I got a work unit on the computer named desktopII.

The WU is reported as Task ID 18592738, WU ID 3825590.
The WU ended in error; but the reports have a discrepancy and are confusing. Outcome=Client error, Client State= Compute error, CPU time 14.24sec.

stderr out reads

<core_client_version>6.10.43</core_client_version>
<![CDATA[
<message>
Maximum elapsed time exceeded
</message>
]]>

Now, how can 14.24 seconds exceed a maximum elapsed time? I have a WU right now on a different machine, laptopII, which is almost completed with a total time of over 23 hours.

What is 14.24 seconds?

How to explain this discrepancy?

38) Message boards : Number crunching : I have some work!! (Message 22335)
Posted 20 May 2010 by mitrichr
Post:
I just saw in the BOINC screen saver that I have a WU, 23 hours, 4 left to go completion date is 5.21.10, I think I will make it.

I posted to the LHC US blog, and asked for more work for all of us, many ".x.flops".

>>RSM
39) Message boards : Number crunching : Ok...who got lucky? (Message 21967)
Posted 5 Mar 2010 by mitrichr
Post:
I got two tasks one for each thread. Both were successful, but each lasted seconds.

The task is w3march10_qmc3__51__s__64.28_59.31__16_18__5__80_1_sixvf_boinc6867_.

So, what was that? A test?
40) Message boards : Number crunching : Totally thrilled to see LHC@home alive and well (Message 21943)
Posted 4 Mar 2010 by mitrichr
Post:
So, LHC@home is back to work. I am attached on two Core 2 Duos and on I7, all three at home and dark while I am away.

But, I attached with my wee netbook and got two tasks already and they were completed. Credits? Sure, but who cares. What is important is that we are once again able to contribute to the success of LHC at CERN.

I actually got 0.01 for each task. Again, who cares?


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