Posts by Keck_Komputers

41) Message boards : Number crunching : Could I...? (Message 714459)
Posted 17 Feb 2008 by Profile Keck_Komputers
Post:
Totally unethical to install even on one without permission.

I think he meant to say "Totally unethical to install even on your work computer without permission."

As others have mentioned you can be fired and sued for installing BOINC without permission.
42) Message boards : SETI@home Science : Modulating one's parent star (in various ways) to send a signal (Message 713499)
Posted 16 Feb 2008 by Profile Keck_Komputers
Post:
One thing along these lines that has been presented as a good thing to search for is a dyson sphere. It has been postulated that no matter how efficient the civilization may be the sphere would still radiate in infrared a few degrees above the background.
43) Message boards : Number crunching : Maintain enough work for an additional (Message 712829)
Posted 15 Feb 2008 by Profile Keck_Komputers
Post:
Reduce the "connect every" setting also and you may be able to get down to one task at a time.
44) Message boards : Number crunching : % of time BOINC runs (Message 712827)
Posted 15 Feb 2008 by Profile Keck_Komputers
Post:
The first step if you have a store bought machine is to reinstall the OS, my vista machine went from 80 processes to 50 when I reinstalled without all of toshiba's junk. I have not really looked into what else can be removed. However the file indexing service is always a prime candidate for removal.
45) Message boards : Number crunching : Upload problems?? (Message 712405)
Posted 14 Feb 2008 by Profile Keck_Komputers
Post:

It also shows some nasty bugs in BOINC 5.10.28 :
- WorkUnits in the Download slots already make BOINC think it had work, while it has not (as download can take days to finish)

This one is worse the other way. Can you imagine thousands of pending downloads and getting more every time you try to connect? Then when the problem clears none of them can possibly meet the deadline.
46) Message boards : Number crunching : Renaming computer question (Message 711367)
Posted 11 Feb 2008 by Profile Keck_Komputers
Post:
Is your nameless host running linux? I have 2 linux crunchers, both are named and neither of them have names on SETI


I have 1 cruncher on Ubuntu linux, and the name shows up just fine on SETI.

There is addition that needs to be made to the host file for *nix systems to report the proper name. Ubuntu does this automatically, most other versions it must be done manually. Sorry I do not have the exact information needed for this change. Most likely a similar fix would work on the macs as well.
47) Message boards : Number crunching : Boinc Manager CPU Benchmark (Message 707490)
Posted 3 Feb 2008 by Profile Keck_Komputers
Post:
Yep that sounds reasonable. The FPU is basically unchanged and the difference in floating point measurements is not far outside of the margin of error. You do get a nice increase in integer speed.
48) Message boards : Number crunching : Missing host (actually the old stats are missing after re-attaching) (Message 702879)
Posted 22 Jan 2008 by Profile Keck_Komputers
Post:
When a host detaches and reattaches it often creates a new host record with zero credit. If you merge the host records it should show all of the credit for all of the records.

On to the real problem, why is the host detaching randomly? The most likely reason is that it is associated with an account manager. If you are using an account manager you need to attach to projects using the account manager, otherwise you will have problems with the client detaching.
49) Message boards : Number crunching : Password Recovery (Message 702429)
Posted 21 Jan 2008 by Profile Keck_Komputers
Post:
If you use the weak authenticator then you will have to go to each host to update it. If you use the account key or email and password it should update automatically when the password is changed.
50) Message boards : Science (non-SETI) : radiometers and the expanding universe (Message 698231)
Posted 7 Jan 2008 by Profile Keck_Komputers
Post:
From something I read recently, isn't '1 Order' 10^1? (As in, 2 order=(2*10^1)*=20*?). I just want to make sure of something while I'm reading this...

Orders of magnitude normally refer to the exponent. So 2nd order is 10^2, 3rd is 10^3.
51) Message boards : Number crunching : Your profile page updates fastest. (Message 696100)
Posted 31 Dec 2007 by Profile Keck_Komputers
Post:
Your profile page takes a (basically) live snapshot of the database. The stats sites work from a database dump that is done once per day at this project.
52) Message boards : Number crunching : GPU crunching on G8x (Message 696095)
Posted 31 Dec 2007 by Profile Keck_Komputers
Post:
GPU support must be implemented in BOINC core ....
there are two ways for now - 1. use 4 cores for CPU applications or 2. use only one core for GPU application ....

one solution is : make application self-selectable- when starts , look if is GPU free then run GPU code else run CPU code ....

The code in the core client has been able to support GPU apps since sometime in the 4.xx versions (non_cpu_intensive flag) with added support in 5.4.x versions (detailed CPU and GPU specs sent to the server). Unfortuantely it will never be as simple as adding another runnable CPU. It will probably always be up to the project apps to see if there is a compatible GPU present and available.
53) Message boards : SETI@home Science : Reverse engineering: if you were an ETI radio source... (Message 695334)
Posted 28 Dec 2007 by Profile Keck_Komputers
Post:
Interesting idea. I wonder if that source is in a blank spot from other perspectives.
54) Message boards : Number crunching : Windows 32 or Windows 64; Does it matter much for BOINC crunching? (Message 693900)
Posted 23 Dec 2007 by Profile Keck_Komputers
Post:
Like the title says, I'm curious. All my machines are Win32, does BOIC crunch more on Win64?

Thanks to everyone, and happy holidays!

It only makes a significant difference on a few projects, simap, APS and ABC primarily. I don't think there are any projects were running at 64bits is determental though.
55) Message boards : Technical News : Onions Wrapped in Rubber (Dec 19 2007) (Message 693034)
Posted 20 Dec 2007 by Profile Keck_Komputers
Post:
I asked yesterday - at BOINC Dev - if there was a working version of BOINC 6 I could use to test the new SETI Beta graphics under Vista. The replies I got - that the last available build, v6.1.5, had been withdrawn even from Alpha testing - did not suggest that a release was imminant.

I do hope that the interval between public Beta and 'recommended' status won't be too short, as it seemed to be in some earlier BOINC development cycles.

It should be back in alpha testing soon. Most of the serious problems were in the installer. I have it running on 2 windoze machines with no problems, however installing it was a nightmare both times.
56) Message boards : Number crunching : Is it possible to resume work on a 'lost' task (detached project by mistake) (Message 692399)
Posted 17 Dec 2007 by Profile Keck_Komputers
Post:
Update:

After I sent my previous post I saw that boinc might 'resend' lost task unit in certain circumstances. I tried to attach the computer to SETI again to see if it worked. It did not. I got a brand new task unit to work on, not the one I was crunching before.

Well, at least the old task unit got the status "Client detached", so the schedular may send it out to another computer for validation. :-)

Best regards
/Magnus

You have to merge the two computer records for the resends to work. However I do not think SETI has this feature enabled. I believe the impact on the server for searching the tasks in progress is greater than the impact of letting them time out and be sent to other computers.
57) Message boards : SETI@home Science : "Hands and intelligent communication" (Message 691730)
Posted 15 Dec 2007 by Profile Keck_Komputers
Post:
A species with "hands" is an essential prerequisit for
intelligent interstellar communication. Do you agree?

Pretty much, although tentacles and psudopods might be workable altenatives. I certainly can not see a creature that can not manipulate it's enviroment developing a high level of intelligence.
58) Message boards : Number crunching : Linux Processes & Network Packets (Message 687756)
Posted 2 Dec 2007 by Profile Keck_Komputers
Post:
How many processes should run from a single project startup of setiathome on linux 2.4? I see 4 + BOINC.

Why does BOINC transmit udp packets on port 53 -1/sec- continuously to my DNS? Keep alive? I want to make it stop...

Thanks peoples.

Vance

There should be one process that gets CPU time. There are often a few others that do not do anything.

The communication may be the client looking for a manager, I am a little surprized that it is hitting your DNS service.
59) Message boards : Number crunching : Account credit diference? (Message 687751)
Posted 2 Dec 2007 by Profile Keck_Komputers
Post:
It is probably a caching issue. The various pages may not be created and/or exported at the same time.
60) Message boards : Number crunching : A feature I would like to see added to BOINC (Message 686167)
Posted 29 Nov 2007 by Profile Keck_Komputers
Post:
I do not think SETI ever changed URLs. However there were several alternate URLs that were viable at one time and no longer work. So we both may be remembering correctly depending on your point of view.


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