Posts by Alexander W. Janssen

1) Message boards : Number crunching : OT: BOINC and Flash Player 9 beta on Linux clash (Message 33690)
Posted 29 Dec 2006 by Profile Alexander W. Janssen
Post:
Might be off-topic, however, I wonder if anyone observed the same strange side-effects.

I run Debian/Linux, BOINC 5.4.9, Mozilla Firefox and the new Flash Player 9 beta from Macromedia/Adobe. When science-applications are running within BOINC and when I open a flash-splattered webpage inside Firefox, the Browser locks up. Completly. It took me quite a while to figure out that when I start the BOINC-manager the lockup vanishes for a second or so, but then locks up again. If I stop all science-apps the browser suddenly works fine and all those pesky flashy things start working until I resume computation.

First I tought that this is a load-related issue and that Flash might need lots of CPU-time, but other types of load (means: other CPU-intense applications) do not provoke this behaviour.

This did not happen with the old version of the Flash Player 7 (?).

I haven't investigated too much yet, I just wanted to ask if other Linux-users observed the same behaviour. Since the problem started with FP9, I'd blame Adobe for this, but there must be some kind of side-effect which only relates to BOINC. I just want to know why those two totally different applications which don't share any resources except CPU and memory don't work together (means they're not sharing the sound-board or use dodgy IPC-/CORBA-communication).

Ideas, anyone?

Merry belated christmas, happy new year,
Alex.
2) Message boards : Number crunching : a Rosetta chat room help desk. (Message 26412)
Posted 9 Sep 2006 by Profile Alexander W. Janssen
Post:
Well since I'm hanging around on Freenode anyway i just droped by #boinc; not much happening there...
OK, I'm in timezone GMT+2 so I'm just going to start hanging around on #rosetta on Freenode from tomorrow on. I'm only online when I'm really sitting in front of my terminal, so if I'm not there... I'm really not there then ;)

My nickname is "yalla".

Cheers, Alex.
3) Message boards : Number crunching : Putting a Bell on the Cat (Message 26240)
Posted 7 Sep 2006 by Profile Alexander W. Janssen
Post:
So why is it that Germans seem to want to show off their non-existant Latin skills ?? - myself included, mea culpa (I hope at least this is right ;-).

Oh hell, I didn't want to show off, i can't! *laugh*
And yeah, the mea culpa was right, but no need to apologize... :)

Alex.

P.S.: Oh, question to the native english-speakers: What does the idiom "putting a bell on the cat" mean anyway?
P.P.S: Got it! A friend of mine said:
<euro-au> you can hear cat comming and it's harder for them to catch birds
<euro-au> the idea is to negate their super-stealth powers
4) Message boards : Number crunching : Putting a Bell on the Cat (Message 26201)
Posted 6 Sep 2006 by Profile Alexander W. Janssen
Post:
So my non-expert vote would be: "Moderor ergo sum".

I bow before your wisdom and believe it straight away ;) (i barely passed my Latinum so I'm not going to complain:)

Cheers,
Alex.
5) Message boards : Number crunching : My rant: Why you should care about the credit-system (Message 26196)
Posted 6 Sep 2006 by Profile Alexander W. Janssen
Post:
Jose wrote:
Are people arguing that the use of BOINC should be limited to only those projects that satisfy their views on how that project's credits are granted? Am I reading here that new projects under BOINC should be limited/restricted or even not allowed on the issue of credits and credits alone?

I'm only speaking for myself; i guess you're refering to PoorBoy's statement.
I don't think that he meant it in a literal way and i don't think that this was an appeal to restrict it.

But I can be wrong in reading all the posts. So can anyone explain to me what is so vital about all projects having similar credits granting structure? I hope there is another reasons other than the artificial construct of statistics.

It's the psychological effect; people want to know that their contribution is any worth. Handing out credits is an incentive to keep the people working on the project. If your project looks bad compared to others (less credit) they might wander off for various reason.
It's about being part of a team, realizing that you're part of something special and if you get "disappointed" you might turn around and never look back.
If I collect all my understanding, I must disappoint you: Yes, it's all about the artificial construction of cross-project-statistics. Not so much the internal statistics in a project (that's something you can solve with more power, to quote Tim Allen).

Cheers, Alex.

Edit: DOH! Added the missing character "r" to PoorBoy's nickname... sorrysorrysorry.........
6) Message boards : Number crunching : Putting a Bell on the Cat (Message 26195)
Posted 6 Sep 2006 by Profile Alexander W. Janssen
Post:
Well, at least get the Latin right. That should be "Moderato ergo sum." Now write 100 times, "Romanes Eunt Domus" :-)
--miw

Does "Moderato" even mean anything close to Moderate, or will those that at least passed their 1st year Latin class be teasing me about not using terms like "tempero" instead?

Actually the verb you're looking for could be "moderor", means "to direct", "to temper". The verb uses the a-conjugation, so "I moderate" should be "modero"... So the sentence would be "Modero ergo sum".

Anyone better at Latin than me? I passed the Latinum like 13 years ago and i never ever used it again... :-)

Cheers, Alex.
7) Message boards : Number crunching : My rant: Why you should care about the credit-system (Message 26171)
Posted 6 Sep 2006 by Profile Alexander W. Janssen
Post:
Actually I think the credit system has improved quite a bit lately, at least in the projects I particiapate in.
[...]
So things aren't perfect, but they seem to be improving.....

I totally agree. One can hope that the whole credit-system will normalize over all (important) projects.
If you want people to crunch your project, you can expect them to give up money, time, sleep, food, sex and grades for you, but don't take away their RAC.

*lol*
Hillarious!
I hope i'm allowed to quote you in my .signature... :-)

Thanks for reading,
Alex.
8) Message boards : Number crunching : My rant: Why you should care about the credit-system (Message 26170)
Posted 6 Sep 2006 by Profile Alexander W. Janssen
Post:
PoorBoy wrote:
Good Article, but there is really nothing anybody can do about the shambles the Credit System is in. As long as new projects are allowed to come on-line allowing almost unlimited Credit to the participants then the Credit System is nothing but a farce...IMO

Yeah, that might be true; although one must admit that this argument is more about combined-stats, not to project-stats as adrianxw already pointed out.
You can go to almost any of the newer alpha projects and a lot of people are getting 100-200 or even more Credits per hour by using the Optimized Clients which do nothing but increase their Credits & inflate their ego's ...

Oh Christ, yes, you can.
Well i just hope that the whole credit-issue will be settled to everyone's satisfaction really really soon as i think that all those flamewars start to tear appart the communities.

Thanks for your feedback,
Alex.

P.S., OT though: I really could use a "preview"-button so that i don't have to edit my posting over and over again when i screwed up the burning-code stuff... :-)
9) Message boards : Number crunching : My rant: Why you should care about the credit-system (Message 26157)
Posted 6 Sep 2006 by Profile Alexander W. Janssen
Post:
Hi all, I thought you might be interested in my rant about the BOINC credit-systems in general and why scientists should care about it.

http://itnomad.wordpress.com/2006/09/06/boinc-why-you-should-care-about-the-credit-system/

Feedback is welcome :)
Cheers, Alex.
10) Message boards : Cafe Rosetta : Your most silly adress on the Internet (Message 22028)
Posted 8 Aug 2006 by Profile Alexander W. Janssen
Post:
Dr. No has quite some funny crap on his homepage; everything from pictures, MP3s and silly flashy things: http://fun.drno.de/
Quite a time-waster... :-)
Warning: Not safe for work in all aspects...
Alex.
11) Message boards : Cafe Rosetta : Word link 3 (Message 21944)
Posted 6 Aug 2006 by Profile Alexander W. Janssen
Post:
wormhole
12) Message boards : Number crunching : Who are you talking to???? (Message 21943)
Posted 6 Aug 2006 by Profile Alexander W. Janssen
Post:
Just a side note... ever thought of asking the people your using in your "stats" for their autorisation to do so ? Even though most people allow "you" to see their computers, that doesn't mean they allow you to post their stats on the fora ....

Hi Cruncher,
those stats are already publicly available. Tony just brought them into a nice shape. If you go to your account-page you'll see a section "Cross-project statistics". Those are sites which use those stats as well. The raw data can be fetched on the rosetta-site as well. I just created a program which translated the XML-data to CSV; Tony imported that into Excel.

If you don't want your stats to be publicly available, well... That's something you have to ask the individual projects or even the BOINC-team.

Have a nice weekend,
Alex.

P.S.: In general you are right in that sense that the user should have an option like that, i agree with you. However, no one can expect Tony to ask all users if they're fine with that.
13) Message boards : Number crunching : Who are you talking to???? (Message 21942)
Posted 6 Aug 2006 by Profile Alexander W. Janssen
Post:
He Tony,
why don't you just export the data as a HTML-table instead of making screenshots? That would save you a lot of work and us some bandwidth... ;-)
Have a nice weekend,
Alex.
14) Message boards : Cafe Rosetta : First came the heat. Then came the rain. (Message 21866)
Posted 4 Aug 2006 by Profile Alexander W. Janssen
Post:
Strange, I'm in the north of Cologne and we have only lite rain but not really much, the ground still can take it. A few lightnings and thunder too, but not so wild either.

It all started in the Niederhein-Area, i friend of mine from Neukirchen-Vluyn told me at 2100CET that his kitchen-sink spits out bad-smelling sewer-water.
I was quite startled cause we just had a bit of rain.
However, it got really bad in the last hour. My cellar is still ok though... (toitoitoi)
I'm not a real Cologne person (and I prefer Alt over Koelsch) so I hope it doesn't get too bad there.

Good for you! :-)
/me stösst mit einem Frankenheim an, *kling*

Good night,
Alex.
15) Message boards : Cafe Rosetta : First came the heat. Then came the rain. (Message 21864)
Posted 4 Aug 2006 by Profile Alexander W. Janssen
Post:
After more than four weeks of constant brutal heat (i mean, man, real heat) it's now raining for a couple of days; but now some really *serious* rain has started:



My hometown, Düsseldorf, is right in the middle where the colour has arrived the upper end of the spectrum...

Doh, i really have to go down to the basement and check if all is ok or if i need to call up the fire-brigade so that they can pump out my cellar...

To complete the topic about the heat: Scientists finally found out that global-warming leds to higher energy demand. See my rant in my blog: http://www.bloglines.com/blog/ITnomad?id=136

Happy swimming,
Alex.
16) Message boards : Cafe Rosetta : Retaining Users - Bringing back former ones (Message 21829)
Posted 4 Aug 2006 by Profile Alexander W. Janssen
Post:
What have you quoted, Alex?

http://boinc.bakerlab.org/rosetta/forum_thread.php?id=1973#20453

What i wanted to express is that the percentage of "inactive" hosts does not necessarily mean that those users retracted from the project, but might have been replaced by a new host-id (although it's the same host).

OK, i must admit that the "in response to Message ID 20453" is quite hard to spot.
Don't want to start another "this forum-software sucks"-flamewar though ;)

Alex.
17) Message boards : Cafe Rosetta : What's playing on the stereo? (Message 21819)
Posted 4 Aug 2006 by Profile Alexander W. Janssen
Post:
Back from lunch.
Drowning Pool - Bodies
I had some nice meatballs by the way ;-)
Alex.
18) Message boards : Rosetta@home Science : CAN YOU HELP ROSETTA?? (Message 21815)
Posted 4 Aug 2006 by Profile Alexander W. Janssen
Post:

Would appreciate your feedback ;)

1) Nice presentation, good work!
2) What did you do to that files? I can open it with OpenOffice 1.1 in Linux, can browse through the slides but when i start the presenation OO crashes with signal 8 - floating point exception! *laugh*
$ openoffice rosetta_wide.pps 
Fatal exception: Signal 8
Stack:
/usr/lib/openoffice/program/libsal.so.3[0x40bac3ec]
...lots of other uninteresting stuff following...

I never had something like that, that's hillarious :)

No need to worry about that, my copy of Open Office is that old, it already started to smell... :)

Cheers, Alex.
19) Message boards : Cafe Rosetta : What's playing on the stereo? (Message 21814)
Posted 4 Aug 2006 by Profile Alexander W. Janssen
Post:
Sweet, thanks mate!
*headbang*
Alex.
20) Message boards : Cafe Rosetta : What's playing on the stereo? (Message 21812)
Posted 4 Aug 2006 by Profile Alexander W. Janssen
Post:
Black Sabbath - The Wizard


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