Posts by Seventh Serenity

1) Message boards : Number crunching : HEY, nVidia just released a new science software language for distributed GPUs! (Message 35424)
Posted 23 Jan 2007 by Profile Seventh Serenity
Post:
Read about this before. Far better idea than what ATI are doing (ATI have stuck to the X1600/X1800/X19## series).
2) Message boards : Cafe Rosetta : So how many regularly post here? (Message 35076)
Posted 19 Jan 2007 by Profile Seventh Serenity
Post:
There are a lot of us that read the boards, but only post when they feel like it.

Sounds like me. I prefer posting on my team's website.
3) Message boards : Cafe Rosetta : BOINC users on last.fm (Message 35046)
Posted 18 Jan 2007 by Profile Seventh Serenity
Post:
Joined, and started scrobbling again (via XMPlay).
4) Message boards : Rosetta@home Science : 10 reasons I crunch R@H and you should too (Message 35020)
Posted 18 Jan 2007 by Profile Seventh Serenity
Post:
Here are the 10 reasons I run this project:

1. One of my machines predicted the lowest energy structure for a work unit (I was once known as Electrolyte), so I know my CPUs are not being wasted.
2. Can change the times of how long you want work units to go on for.
3. Fantastic contact between the project team and it's users.
4. The research is very important.
5. The client software is highly stable.
6. When help is needed, you get it from many different people.
7. Very friendly community.
8. Multiple operating system capability, good for a wide-range of computers.
9. Dr. Baker personally giving updates about how the project is going.
10. Screen saver is very useful at understanding what is happening in the work unit.

..and because of these 10 reasons, I will be taking part in Rosetta@Home for as long as it's running.
5) Message boards : Number crunching : Problems with Rosetta version 5.41 (Message 32168)
Posted 6 Dec 2006 by Profile Seventh Serenity
Post:
I've not had an WU crash while viewing the graphics on my 7800 GTX yet.
6) Message boards : Number crunching : Problems with Rosetta version 5.41 (Message 32073)
Posted 4 Dec 2006 by Profile Seventh Serenity
Post:
It appears there is something wrong with the Linux client on my Kubuntu Dapper Linux machine as the new Rosetta app keeps crashing, but LHC@Home and Einstein@Home are working flawlessly. The machine is using kernel 2.6.15 and is optimised for i686 processors. Here is the main spec of the machine:

* Gigabyte 8S648FXP-RZ SiS 648FX Motherboard
* Pentium 4 Northwood Extreme Edition @ 3.2GHZ
* 1.5GB PC3200 DDR Kingston Value RAM (3x 512MB, Single Channel)

I really wish this system could run on Rosetta@Home - that P4 is a monster CPU.

Any ideas?
7) Message boards : Number crunching : Problems with Rosetta version 5.41 (Message 31998)
Posted 3 Dec 2006 by Profile Seventh Serenity
Post:
The failure rate for the application 5.41 has been normal compared to the previous version. Hopefully re-attaching will help.
It didn't. More WUs crashed throughout the night. I'll now have to detach from Rosetta@Home and attach another project to it.
8) Message boards : Number crunching : Problems with Rosetta version 5.41 (Message 31976)
Posted 2 Dec 2006 by Profile Seventh Serenity
Post:
Hi, it looks a problem of not getting new application correctly. Does this still happen if you force a clean update to get the 5.41 application again?

It was actually a fresh install to begin with, but so far the 2 current WUs have been going for several hours without any problems.

I was wrong. It just crashed on another WU again. Will try re-attaching to see if it helps.
9) Message boards : Number crunching : Problems with Rosetta version 5.41 (Message 31971)
Posted 2 Dec 2006 by Profile Seventh Serenity
Post:
Hi, it looks a problem of not getting new application correctly. Does this still happen if you force a clean update to get the 5.41 application again?

It was actually a fresh install to begin with, but so far the 2 current WUs have been going for several hours without any problems.
10) Message boards : Number crunching : Problems with Rosetta version 5.41 (Message 31949)
Posted 2 Dec 2006 by Profile Seventh Serenity
Post:
One of my machines (running Linux) is giving errors on ALL WUs from 5.41 - this never happened with 5.40. Example WU: http://boinc.bakerlab.org/rosetta/result.php?resultid=50074717

stderr out:

<core_client_version>5.4.9</core_client_version>
<message>
process exited with code 131 (0x83)
</message>
<stderr_txt>
Graphics are disabled due to configuration...
# random seed: 2641103
# cpu_run_time_pref: 86400
SIGILL: illegal instruction
Stack trace (25 frames):
[0x8a47b6f]
[0x8a638bc]
[0xffffe420]
[0x86a9a82]
[0x88c96c3]
[0x88cd3be]
[0x861a3f0]
[0x861c62c]
[0x861e38f]
[0x862b559]
[0x88d8f69]
[0x88ded79]
[0x88e0727]
[0x890dbb0]
[0x890edff]
[0x804cf56]
[0x8742107]
[0x8745e8c]
[0x8746cc0]
[0x82ef851]
[0x84c998f]
[0x85dd0a3]
[0x85dd14c]
[0x8ac2da4]
[0x8048111]

Exiting...

</stderr_txt>

I'm going to have to stop Rosetta@Home on this machine if it keeps doing this.
11) Message boards : Number crunching : OT: A closer look at Folding@home on the GPU (Message 31938)
Posted 2 Dec 2006 by Profile Seventh Serenity
Post:
I've just upgraded my GPU from an ATI X850XT to an nVidia 7800 GTX - mostly because of SM3, HDR and the better driver support. I just don't like leaving it idle with it's 24-shaders. I seriously wish there was a project that could make use of it.
12) Message boards : Number crunching : OT: A closer look at Folding@home on the GPU (Message 29901)
Posted 23 Oct 2006 by Profile Seventh Serenity
Post:
I think Folding@Home will be looking into the new nVidia core, the G80. I've heard it contains 128 shaders - the ATI X1950XTX has 48.
13) Message boards : Number crunching : OT: A closer look at Folding@home on the GPU (Message 29710)
Posted 20 Oct 2006 by Profile Seventh Serenity
Post:
With all this news with GPU clients possibly coming to BOINC projects and already being out for Folding@Home, I wish ATI would improve their Linux fglrx driver to be as good as the driver for Windows and to also allow the GPU to run Folding@Home & BOINC projects (when done).

Otherwise, I'll still have my doubts about ATI being a good company.
14) Message boards : Number crunching : Dedicated 3.2GHz HT P4 with 25.25 RAC? (Message 29707)
Posted 20 Oct 2006 by Profile Seventh Serenity
Post:

Good point: Many motherboards have "clock-throttling" mechanisms where they slow the processor down when it gets too hot.

Actually, the Pentium 4s (especially the 3GHZ and up series) have their own thermal throttling that's far faster than the motherboard (Tom's Hardware Guide ran a test by removing the heatsink under full load - didn't burn up, didn't damage the CPU & mobo and didn't even crash!).

That P4s RAC is extremely low however, my Northwood Extreme Edition @ 3.2GHZ gets 350-450 credit a day.
15) Message boards : Rosetta@home Science : How can we bring more users to the Rosetta project? (Message 29627)
Posted 19 Oct 2006 by Profile Seventh Serenity
Post:
Well, I've come back to Rosetta from WCG. I think the science in Rosetta@Home is more important (I'm still doing it for the HIV/AIDS virus) and because WCG isn't fair for Linux users.
16) Message boards : Number crunching : Discussion of the new credit systen (2) (Message 29586)
Posted 18 Oct 2006 by Profile Seventh Serenity
Post:
I've just switched back to Rosetta@Home from WCG because of the unfairness with credit on Linux systems. I'm more for the science of course, but since Rosetta@Home is still partly based around the HIV/AIDS virus, I'll be running R@H until WCG get their fixed credit system in place.
17) Message boards : Number crunching : @Admins: quorum of 3 results needed (Message 4797)
Posted 30 Nov 2005 by Profile Seventh Serenity
Post:
They don't use the benchmark*time credit system.

I do know, I was a beta tester for them. I wasn't refering to that, I was refering to how they send out work.
18) Message boards : Number crunching : @Admins: quorum of 3 results needed (Message 4793)
Posted 30 Nov 2005 by Profile Seventh Serenity
Post:
Sorry but I'm going to have to agree with the users who want to stay with 1 result needed for credit to be given. As long as the results coming in are correct and valid, I see no big advantage in going upto 3. All I see (as many others have stated) is a huge project performance drop, and I also see a waste of resources.

Think about ClimatePrediction - they only send the model to one computer, unless the computer crunching the model takes a long time to send a trickle back (or errors out), otherwise it'll send it out to another. I don't think they have ran into one single invalid model (or from what I've seen that is, could be wrong).






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