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Posts by Desti

Posts by Desti

21) Message boards : Number crunching : invalid signature (Message 42969)
Posted 23 Sep 2011 by Desti
Post:
Hi,
I just saw there is an upload problem with one of my models here:


23-Sep-2011 14:44:34 [climateprediction.net] Started upload of hadcm3n_o28j_1940_40_007447238_2_1.zip
23-Sep-2011 14:44:48 [climateprediction.net] Sending scheduler request: To send trickle-up message.
23-Sep-2011 14:44:48 [climateprediction.net] Requesting new tasks for NVIDIA GPU
23-Sep-2011 14:44:55 [climateprediction.net] Scheduler request completed: got 0 new tasks
23-Sep-2011 14:44:55 [climateprediction.net] No work sent
23-Sep-2011 14:56:59 [climateprediction.net] Error reported by file upload server: invalid signature
23-Sep-2011 14:56:59 [climateprediction.net] Giving up on upload of hadcm3n_o28j_1940_40_007447238_2_1.zip: permanent upload error

It is this WU:
http://climateapps2.oerc.ox.ac.uk/cpdnboinc/result.php?resultid=13391800

Is it lost now?
22) Message boards : Cafe CPDN : Team Recruiting Thread II (Message 35781)
Posted 31 Dec 2008 by Desti
Post:
You are welcome to the Linux Users Everywhere, the Team for all Linux users and friends of any kind of Free Open Source Software!
23) Message boards : Cafe CPDN : Happy Birthday, CPDN! (Message 34821)
Posted 28 Aug 2008 by Desti
Post:
Happy Birthday and good next 4 years!
24) Message boards : climateprediction.net Science : Nearly 1 PFLOPS for climate research (Message 33227)
Posted 6 Apr 2008 by Desti
Post:
The University of Tennessee spends 65 million dollar for a new supercomputer with nearly 1 petaflops. It will be the fastest supercomputer cluster of the world!

http://www.tennessee.edu/system/news/nsf/?utm_source=utk-image&utm_medium=web&utm_campaign=nsf

The new supercomputer system will be built and deployed in partnership with Cray and AMD, and it will be capable of nearly 1,000 trillion calculations a second (1 petaflops) and will give researchers the tools they need to conduct transformational research in a variety of fields.

Some examples of how the new system is expected to be put to use:

* Astrophysicists will move toward realistic simulations of supernova formation, galaxy evolution, and black hole mergers.
* Climate scientists will get a boost in their efforts to predict extreme weather such as hurricanes and tornadoes as well as long-term climate change and the effects of pollution.
* Earth scientists will be able to perform high-resolution simulations of the earth\'s interior and enhance our understanding of the planet\'s evolution.
* Materials scientists will be better able to design materials with useful properties.
25) Message boards : Number crunching : \"Too Many Total Results\" (Message 33226)
Posted 6 Apr 2008 by Desti
Post:
I\'m seeing this message under \"errors\" on the workunit summary page of my work units. Here is an example:

http://climateapps2.oucs.ox.ac.uk/cpdnboinc/workunit.php?wuid=6126380

What does this mean, and what is going wrong?

Thanks,
Ed


That is normal here, you don\'t need to care about it.
26) Questions and Answers : Unix/Linux : no climate prediciton on debian etch ? (Message 33225)
Posted 6 Apr 2008 by Desti
Post:
[...]

There was, and possibly still is, a project at another UK Uni for hi-resolution models.
These will need 4.5 Gb for the model alone, so around 6 gigs for model plus OS.



I hope they are still working on this, I\'m sure 2010 every new standard PC will have 6-8 GiB RAM, 8 core processor and 1-2 TB diskspace.
27) Questions and Answers : Unix/Linux : New % on tghe result (Message 32983)
Posted 15 Mar 2008 by Desti
Post:
Hello
I have crunch a hadsm3 wu, and after the phase 2, the % is starting new from 0% - is this right or is the wu crashed?

http://climateapps2.oucs.ox.ac.uk/cpdnboinc/result.php?resultid=7299083

Edit: Now i have a error message:
Fr 14 Mär 2008 23:38:55 CET|climateprediction.net|Task hadsm3fub_025k_005933905_8 exited with zero status but no \'finished\' file
Fr 14 Mär 2008 23:38:55 CET|climateprediction.net|If this happens repeatedly you may need to reset the project.
Fr 14 Mär 2008 23:38:55 CET|climateprediction.net|Restarting task hadsm3fub_025k_005933905_8 using hadsm3 version 510


Look at the timesteps, are they still growing?
28) Questions and Answers : Unix/Linux : 3 waiting to run processes at a 4 core machine... (Message 31853)
Posted 23 Dec 2007 by Desti
Post:
I assume you are talking about this host. The host details show one CPU even though the description is for a quad core chip. Check that your OS is registering all of the cores, a reinstall of the OS is often required when changing to multi-core chips.

Also check your BOINC directory for a cc_config.xml file, if it exsists make sure there are no tags for \"NCPU\".


Linux is not Windows(tm), you never need to reinstall the entire OS for a hardware change. (except you change the µarch)
29) Message boards : climateprediction.net Science : Rise in atmospheric CO2 accelerates as economy grows, natural carbon sinks weaken (Message 31073)
Posted 23 Oct 2007 by Desti
Post:
http://www.eurekalert.org/pub_releases/2007-10/ci-ria102207.php



Stanford, CA -- Human activities are releasing carbon dioxide faster than ever, while the natural processes that normally slow its build up in the atmosphere appear to be weakening. These conclusions are drawn in a new study in the early online edition of the Proceedings of the National Academy of Sciences,* October 22-26. The report states that �together, these effects characterize a carbon cycle that is generating stronger-than-expected climate forcing sooner than expected.�

Between 2000 to 2006, human activities such as burning fossil fuels, manufacturing cement, and tropical deforestation contributed an average of 4.1 billion metric tons of carbon to the atmosphere each year, yielding an annual growth rate for atmospheric carbon dioxide of 1.93 parts per million (ppm). �This is the highest since the beginning of continuous monitoring in 1959,� states the report. The growth rate of atmospheric carbon dioxide is significantly larger than those for the 1980s and 1990s, which were 1.58 and 1.49 ppm per year, respectively. The present atmospheric concentration of carbon dioxide is 381 ppm, the largest concentration in the last 650,000 years, and probably in the last 20 million years.

While the worldwide acceleration in carbon dioxide emissions had been previously noted, the current analysis provides insights into its causes. �The new twist here is the demonstration that weakening land and ocean sinks are contributing to the accelerating growth of atmospheric CO2,� says co-author Chris Field, director of the Carnegie Institution�s Department of Global Ecology.

Changes in wind patterns over the Southern Ocean resulting from human-induced global warming have brought carbon-rich water toward the surface, reducing the ocean�s ability to absorb excess carbon dioxide from the atmosphere. On land, where plant growth is the major mechanism for drawing carbon dioxide out of the atmosphere, large droughts have reduced the uptake of carbon.

Emissions from the burning of fossil fuels constituted the largest source of anthropogenic carbon, releasing an average of 7.6 billion metric tons each year between 2000 and 2006, a significant jump from 6.5 billion tons in the 1990s. Emissions generated by land-use changes such as deforestation have remained constant, but shifted in geographic focus.

The study also shows that the carbon intensity of the global economy (kilograms of carbon per dollar of economic activity) has increased since 2000 at about 0.3% per year, reversing a 30-year decline of about 1.3% per year. Because practically all proposed scenarios for managing future emissions postulate improvements in carbon intensity in the global economy, this deterioration of carbon intensity presents a serious challenge in stabilizing atmospheric carbon dioxide and mitigating climate change.
30) Questions and Answers : Unix/Linux : View Computers Too Much Detail (Message 30991)
Posted 17 Oct 2007 by Desti
Post:
I can\'t understand this change at all! Suddenly, all of my 6 computers using Linux list *every finicking detail* of the processor, causing each system to take 2/3rds of a screen. Note that the details serve no useful purpose.

Does anybody test for usability? It sure doesn\'t look like it. The current display is useless for more than two systems.

Now my computer list is essentially useless because I can only see part of two systems at a time. Is there some way to limit the display of each system to 6 lines?




What screen resolution do you have? All your systems are fitting perfect on my 1280*1024 display.
31) Message boards : Number crunching : 64 Bit Version: when will it arrive? (Message 30866)
Posted 7 Oct 2007 by Desti
Post:

As per your other posts, no specific date - \'when the project gets a chance\'.

Do any of the projects you run actually USE 64-bit applications? As far as I know it\'s only APS, primegrid, and one other whose name I don\'t recall?


In the last months a lot of other projects have released 64 bit applications.
32) Message boards : climateprediction.net Science : APS (Message 29585)
Posted 17 Jul 2007 by Desti
Post:
What happened to APS, they are down since two days?
33) Message boards : Number crunching : How hot may an Intel Core duo E6600 become? (Message 29519)
Posted 12 Jul 2007 by Desti
Post:
i have an E4300 cpu oc\'d to 2.4, on G965 DS3, so it\'s basically an E6600 with half of cache, and at room temperature 30C, core temp shows 70-72 with stock cooler and i know that it can\'t get any hotter than this.



You should check your CPU voltage or modify your case cooling.
34) Message boards : Number crunching : Core 2 Duo E6600 speed (Message 26285)
Posted 22 Jan 2007 by Desti
Post:
we\'re beta testing a new version of the hadcm3 model, using the latest Intel Fortran compiler (9.1) and some optimizations which seem to work. People are getting \"sub-1-second\" per timesteps on Core2 Duos (these CPUs seem to be the best; I guess Intel has made their compiler work best on their latest & greatest chip! :-)



WoW! I have the new version will be ready when my current model is finished. :-)
35) Message boards : climateprediction.net Science : BBC followup programme (Message 26250)
Posted 21 Jan 2007 by Desti
Post:
Will there be a place to download that report for all the people, who are not able to receive BBC?
36) Questions and Answers : Unix/Linux : Is it normal for a CPDN WU to take this much time? (Message 25738)
Posted 26 Dec 2006 by Desti
Post:


In the past I\'ve let the pc keep on running during my night sleep, for other reasons than BOINC, and when my log still made a line showing the time each hour, I noticed that during the last few hours the calculating speed started dropping dramatically, even to half of normal operation. And whilst running it 24/7 will not save me electricity, it will save me money because during the day electricity is much more expensive than during the night.
Thanks for the help on the time when progress is saved (432-timer).



Do you have enabled a GNOME/KDE/what_ever_desktop_you_use screensaver too? You should disable it or set it to blank_screen or black_screen only.
37) Questions and Answers : Unix/Linux : platform \'x86_64-pc-linux-gnu\' not found (Message 25560)
Posted 11 Dec 2006 by Desti
Post:
I\'ve got a 4 cpus machine but I can use it cause it\'s a XEON em64t! under Debian/Sarge. If boinc has this kind of problems I think it\'s time wasted. I\'ve seen many users with the same problem but no solution from berkeley.

Like a patch, how can I run boinc (a 32bits program) inside my machine? is that possible?

Regards.



Why do you think you can\'t run 32 bit applications?

Debian/Sarge is able to do this, you simply need to install ia32 libs. https://alioth.debian.org/docman/view.php/30192/21/debian-amd64-howto.html#id292233
38) Message boards : Number crunching : Core 2 Duo E6600 speed (Message 25447)
Posted 3 Dec 2006 by Desti
Post:
I have

Average (sec/TS) 1.6484

with a E6400 @ 2662/333 MHz with DDR2 667 memory on a i945G graphic chipset.

CPDN is running on core 0 while core 1 is crunching Einstein@home.
39) Questions and Answers : Unix/Linux : SIGSEGV: segmentation violation (Message 25320)
Posted 27 Nov 2006 by Desti
Post:
So you mean it was running before? Have you changed or updated anything?
40) Questions and Answers : Unix/Linux : error: meaning ? (Message 25221)
Posted 21 Nov 2006 by Desti
Post:
Looks very similar to this http://climateapps2.oucs.ox.ac.uk/cpdnboinc/forum_thread.php?id=4693


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