S5R2

derekm
derekm
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Ready to crunch,

Ready to crunch, Captain!

Keep us well informed about major changes to the time it takes to crunch/download new WUs, and you'll never get any complaints from those interested in the science.

derekm
Team MacAddict

Conan
Conan
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>> I have seen an e-mail

>> I have seen an e-mail stating that with the new application the amount of cobblestones awarded per WU will be reduced as it is believed to be granting too much credit per second compared to other projects.
If this is true then by how much will the reduction be?

I don't believe you to be granting too much myself and if you are doing this going on someone else's statistics then please do your own research before making a decision.
Also the amount granted really depends on the computer you have running. The faster the machine then of course the more credit per second is generated.

It could be the figure being distorted by all the new computing hardware used by partipating Universities (particuraly a few USA Universities and German Universities).
With all those new faster computers the volunteers with slower hardware are going to be penalised.

Thank you for your time and remember to keep smiling as it makes others wonder what you have been up to.

KSMarksPsych
KSMarksPsych
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RE: > I don't believe you

Message 62082 in response to message 62081

Quote:
> I don't believe you to be granting too much myself and if you are doing this going on someone else's statistics then please do your own research before making a decision.
>

FWIW, there's a nice chart here that is an extremely comprehensive cross project comparison of granted credits across the different projects.

Kathryn :o)

Einstein@Home Moderator

DanNeely
DanNeely
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I don't know if einstien is

I don't know if einstien is going to change their credit rate or not. In the past most of why they've granted overly large credit levels is that instead of calibrating off of the x86-sse app that the overwelming majority of the crunchers are running they've been splitting the difference between it and the x86-nonSSE and other non x86 apps which are generally significantly slower. Meanwhile most other projects have been either calibrating to x86-sse and ignoring the handful older machines/odd balls crunching for them.

Annika
Annika
Joined: 8 Aug 06
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Oh come on... please stop

Oh come on... please stop talking about credits already. The science run doesn't even have started yet, and I'm sure the project admins are going to make a sensible decision when it's needed. Let's please keep this thread about the science and the technology, that's way more interesting ;-) and also more productive.
One question to Bernd or any other dev/admin who is reading this: I've understood that dial-up users might get problems in the next run. Okay, so that doesn't mean me, I'm on fast broadband and will get sth even better soon. But what about slow computers? Will sth like a Pentium 3 or my old Celeron notebook still be able to participate in a sensible way? Or have the minimum computing power requirements also increased with the new WUs/application?
Thanks in advance
Annika

jowr
jowr
Joined: 19 Feb 05
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Thank you for the update,

Thank you for the update, Bernd. The updates are always appreciated.

I'm a physics student [BSc in physics more done than not] who has an extreme interest in general relativity. Gravitational wave astronomy gives me a huge science chubby and I can't wait for the first direct detection - this project is my way of directly contributing to the effort.

Annika
Annika
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Jowr, I understand how you

Jowr, I understand how you feel, though in my case, it's more the technical side of things which I want to learn as much as possible about (naturally, since I study computer science) whereas astronomy and physics are more of a hobby for me and I don't have as much knowledge about that.

Mike Hewson
Mike Hewson
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RE: Thank you for the

Message 62087 in response to message 62085

Quote:

Thank you for the update, Bernd. The updates are always appreciated.

I'm a physics student [BSc in physics more done than not] who has an extreme interest in general relativity. Gravitational wave astronomy gives me a huge science chubby and I can't wait for the first direct detection - this project is my way of directly contributing to the effort.


Ditto, thanks Bernd, always a pleasure to hear from you! :-)

To digress slightly, Bernd, when your name is mentioned I always think of this illustration from the 'The Mythical Man-Month' by Fred Brooks ( which discusses, amongst other things, the NON-equivalence of effort vs. progress in programming ):

It's called "The Tar Pit" - note the 'stuck' bear, the standoff with the sabre-tooths, the vultures ( and more coming in expectation! ), plus hyenas or somesuch moving up too ( all in all, a routine day at the pit! ) .... some analogy with assembler programming in particular? :-)

I too have an ( old/1980 ) B.Sc in physics, shall I say that Gravity Waves attract me.. :-)

Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter ...

... and my other CPU is a Ryzen 5950X :-) Blaise Pascal

Bernd Machenschalk
Bernd Machenschalk
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I'm not that much into

I'm not that much into assembler-programming yet, it's a bit too early (also I will try again to take more advantage of auto-vectorization this time, giving much more flexibility).

Anyway, the validator of S5R2 is one of the least tested parts, you might see credit values change or states flipping between valid and invalid of already finished tasks while we adjust it.

BTW: the first 1000 units have already been sent out, and we already discovered a problem (outdated value for estimated diskspace...).

BM

BM

Mike Hewson
Mike Hewson
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RE: I'm not that much into

Message 62089 in response to message 62088

Quote:
I'm not that much into assembler-programming yet


I first fiddled and faddled with assembler when the 8088 came out! There wasn't the 'high-level' languages and IDE's that we have now .... back then the comparison was : whether you'd prefer to fly across Africa ( COBOL, FORTRAN, BASIC or somesuch ) or crawl ( assembler )!

So I realise why you might not be 'into' assembler as ( Akos aside! ) many modern compilers aren't bad optimisers .... :-)

For that matter, what are your 'tools'?

Cheers, Mike.

( edit ) Bad phrasing. I meant Akos is superb... :-)

I have made this letter longer than usual because I lack the time to make it shorter ...

... and my other CPU is a Ryzen 5950X :-) Blaise Pascal

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