Bruce, a question about An Optimized Application

Jordan Wilberding
Jordan Wilberding
Joined: 19 Feb 05
Posts: 162
Credit: 715,454
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RE: Hi! I did a

Message 23551 in response to message 23550

Quote:

Hi!

I did a hand-optimized version of the albert code. (windows, no SSE)
It produces absolutely correct results, but at least two times faster.
Can I use it without any kickback?

I do not work here or anything, but speaking in general, I think it would be best to submit your changes to the E@H staff, so 1. they can validate your claims, and 2. they can possibly use those changes in their main albert client

Having a 2x improvement in windows would be a huge help if the results are really just as accurate.

such things just should not be writ so please destroy this if you wish to live 'tis better in ignorance to dwell than to go screaming into the abyss worse than hell

ExtraTerrestrial Apes
ExtraTerrestria...
Joined: 10 Nov 04
Posts: 760
Credit: 182,671,861
RAC: 7,313

I second that one: a 2x

I second that one: a 2x speed-up would be huge. May I ask how you got the source code?

MrS

Scanning for our furry friends since Jan 2002

DanNeely
DanNeely
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Credit: 1,752,700,836
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Who's to say he did. Hand

Who's to say he did. Hand optimizing asm isn't much less difficult than running a disassembler on an executable to get (undocumented) asm out. Farthermore, running the app under a debugger would allow you to profile the execution and determine where the code was spending most of it's time, and thus where to concentrate the optimzation.

Bruce Allen
Bruce Allen
Moderator
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RE: Hi! I did a

Message 23554 in response to message 23550

Quote:

Hi!

I did a hand-optimized version of the albert code. (windows, no SSE)
It produces absolutely correct results, but at least two times faster.
Can I use it without any kickback?

I'm very interested in this. I'll send you an email off list.

Cheers,
Bruce

Director, Einstein@Home

Akos Fekete
Akos Fekete
Joined: 13 Nov 05
Posts: 560
Credit: 4,514,103
RAC: 218

RE: I'm very interested in

Message 23555 in response to message 23554

Quote:
I'm very interested in this. I'll send you an email off list.

Ok. I'm waiting for your email.

Akos

ExtraTerrestrial Apes
ExtraTerrestria...
Joined: 10 Nov 04
Posts: 760
Credit: 182,671,861
RAC: 7,313

Any results on this so far?

Any results on this so far? Any beta-testers needed? :)

MrS

Scanning for our furry friends since Jan 2002

Akos Fekete
Akos Fekete
Joined: 13 Nov 05
Posts: 560
Credit: 4,514,103
RAC: 218

RE: Any results on this so

Message 23557 in response to message 23556

Quote:
Any results on this so far? Any beta-testers needed? :)

I would like to help on speed optimization, but i don't know what is the way of it. Probably i can put my code on a webpage, but i think it would be not legal. I didn't get any e-mails in connection with legitimacy.

Jordan Wilberding
Jordan Wilberding
Joined: 19 Feb 05
Posts: 162
Credit: 715,454
RAC: 0

RE: RE: Any results on

Message 23558 in response to message 23557

Quote:
Quote:
Any results on this so far? Any beta-testers needed? :)
I would like to help on speed optimization, but i don't know what is the way of it. Probably i can put my code on a webpage, but i think it would be not legal. I didn't get any e-mails in connection with legitimacy.

Try emailing Bruce directly. You can find his email at the bottom of his personal page. http://www.lsc-group.phys.uwm.edu/~ballen/

such things just should not be writ so please destroy this if you wish to live 'tis better in ignorance to dwell than to go screaming into the abyss worse than hell

Jordan Wilberding
Jordan Wilberding
Joined: 19 Feb 05
Posts: 162
Credit: 715,454
RAC: 0

Are you currently using your

Message 23559 in response to message 23557


Are you currently using your modified binaries? Because wow, 345.38 RAC is pretty good for an athlon 1700

such things just should not be writ so please destroy this if you wish to live 'tis better in ignorance to dwell than to go screaming into the abyss worse than hell

ExtraTerrestrial Apes
ExtraTerrestria...
Joined: 10 Nov 04
Posts: 760
Credit: 182,671,861
RAC: 7,313

I seems so. He's crunching

I seems so. He's crunching 1.5 times faster than my 2.5GHz X2 (for one WU)! That's damn impressive, even if the 1700+ may be OC'ed :)

MrS

Scanning for our furry friends since Jan 2002

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