Problem with Global Correlations S5 search #1 v1.05 (S5GCESSE2)

checker
checker
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Topic 195317

System:
amd64 7550 (kuma)
Gentoo linux
2.6.35-gentoo-r5 #2 SMP x86_64 AMD Athlon(tm) 7550 Dual-Core Processor AuthenticAMD
cpu and memory had not overclocked
but look at my statistics
(pastebin version or rigth here )
I have too much computation errors! Why? It seems that there are some problems with source. Another projects works good.

upd! it seems that the same problem with abp..

Mike Hewson
Mike Hewson
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Posts: 6542
Credit: 287273042
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Problem with Global Correlations S5 search #1 v1.05 (S5GCESSE2)

Quote:

System:
amd64 7550 (kuma)
Gentoo linux
2.6.35-gentoo-r5 #2 SMP x86_64 AMD Athlon(tm) 7550 Dual-Core Processor AuthenticAMD
cpu and memory had not overclocked
but look at my statistics
(pastebin version or rigth here )
I have too much computation errors! Why? It seems that there are some problems with source. Another projects works good.

upd! it seems that the same problem with abp..


We're looking at this. It seems there may be a problem with floating point stuff on compiled Gentoo systems alas ...

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

ML1
ML1
Joined: 20 Feb 05
Posts: 347
Credit: 86316101
RAC: 316

RE: RE: System: ... Gento

Message 99679 in response to message 99678

Quote:
Quote:
System:
...
Gentoo linux
2.6.35-gentoo-r5 #2 SMP x86_64 AMD Athlon(tm) 7550 Dual-Core Processor AuthenticAMD
...

We're looking at this. It seems there may be a problem with floating point stuff on compiled Gentoo systems alas ...


How so?

If so, that needs identifying and fixing!

I've a low power Gentoo system I can attach if useful for a comparison.

Happy crunchin',
Martin

See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

ML1
ML1
Joined: 20 Feb 05
Posts: 347
Credit: 86316101
RAC: 316

RE: ... If so, that needs

Message 99680 in response to message 99679

Quote:

... If so, that needs identifying and fixing!

I've a low power [64-bit] Gentoo system I can attach if useful for a comparison.


OK, it's attached.

Even though it's a 64-bit system, the Einstein 32-bit executable has been downloaded:

Mon Oct 11 14:50:10 2010 Einstein@Home Started download of einstein_S5R6_1.01_graphics_i686-pc-linux-gnu

This is going to be good test of whether I've got any 32-bit libraries installed!

Happy crunchin',
Martin

See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

Gundolf Jahn
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Credit: 341280
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RE: Even though it's a

Message 99681 in response to message 99680

Quote:
Even though it's a 64-bit system, the Einstein 32-bit executable has been downloaded


AFAIK, there are no 64-bit applications at Einstein@home.

Gruß,
Gundolf

Computer sind nicht alles im Leben. (Kleiner Scherz)

Mike Hewson
Mike Hewson
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Joined: 1 Dec 05
Posts: 6542
Credit: 287273042
RAC: 92008

RE: RE: ... If so, that

Message 99682 in response to message 99680

Quote:
Quote:

... If so, that needs identifying and fixing!

I've a low power [64-bit] Gentoo system I can attach if useful for a comparison.


OK, it's attached.

Even though it's a 64-bit system, the Einstein 32-bit executable has been downloaded:

Mon Oct 11 14:50:10 2010 Einstein@Home Started download of einstein_S5R6_1.01_graphics_i686-pc-linux-gnu

This is going to be good test of whether I've got any 32-bit libraries installed!


From my memory, that was the likely issue. The original poster hasn't hung around to tell us further detail ( looks like he's gone elsewhere to crunch ), but I see his system is described as Linux '2.6.35-gentoo-r5--mantiss' on a 64-bit Athlon. Does that fit? Meaning you'd probably get 64-bit whatever by default if you performed your own compile? I've never done Linux that way, only using downloaded or on-disc versions selected to ( closest ) fit my target ... what is the ( alleged ) advantage(s) of rolling your own anyway? Back end compiler choice?

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

ML1
ML1
Joined: 20 Feb 05
Posts: 347
Credit: 86316101
RAC: 316

RE: RE: ... If so, that

Message 99683 in response to message 99680

Quote:
Quote:

... If so, that needs identifying and fixing!

I've a low power [64-bit] Gentoo system I can attach if useful for a comparison.


OK, it's attached.

Even though it's a 64-bit system, the Einstein 32-bit executable has been downloaded:

Mon Oct 11 14:50:10 2010 Einstein@Home Started download of einstein_S5R6_1.01_graphics_i686-pc-linux-gnu

This is going to be good test of whether I've got any 32-bit libraries installed!

First ones are through ok, even though the claimed credit was rather low for my system. x3 the claimed credit was actually awarded.

So, the standard 32-bit libs installed are enough or e@h has all its 32-bit stuff included in the downloads.

The completed tasks are:

Task 199891818

Task 199821599

Task 199821513

Task 199775290

All looks fine.

Next is to compare how the total RAC holds up with a mix of jobs as opposed for just running ABC@home.

For that Atom D510, the RAC looks to be holding around 1050 - 1100 (units).

Happy crunchin',
Martin

[edit] Validated against both Microsoft Windows and Apple Darwin fine. [/edit]

See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

ML1
ML1
Joined: 20 Feb 05
Posts: 347
Credit: 86316101
RAC: 316

RE: ... described as Linux

Message 99684 in response to message 99682

Quote:
... described as Linux '2.6.35-gentoo-r5--mantiss' on a 64-bit Athlon. Does that fit? Meaning you'd probably get 64-bit whatever by default if you performed your own compile?


The base system will be 64bits, but you can still have 32bit apps and libs where needed.

Quote:
I've never done Linux that way, only using downloaded or on-disc versions selected to ( closest ) fit my target ... what is the ( alleged ) advantage(s) of rolling your own anyway? Back end compiler choice?


For most people, you may as well use the pre-packaged systems.

The Linux kernel usually comes compiled with literally everything compiled in. There's no messing about downloading and loading drivers or other black magic being as all the code currently supported is already in there. A neat trick is then done to remove all the unnecessary stuff after boot and after all the hardware has been configured. Hence you still get a keen lean mean kernel at runtime.

Compiling your own means that you can trim things down to only support your hardware. You get a slightly faster boot up. You can also dive in to do any specialist tweaks you might wish.

However, most people won't notice the difference!

It is a very good way to learn what the kernel does!!

For myself, I use Gentoo on low power or unusual systems where customisation does make a noticeable difference. Gentoo customisation is a very different matter to that of customising only the kernel. With Gentoo, you can very easily customise your entire distribution and that can make a very significant difference. Easily customising the kernel is just a natural extension of the Gentoo customisations.

Happy crunchin',
Martin

See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

ML1
ML1
Joined: 20 Feb 05
Posts: 347
Credit: 86316101
RAC: 316

RE: First ones are through

Message 99685 in response to message 99683

Quote:

First ones are through ok, even though the claimed credit was rather low for my system. x3 the claimed credit was actually awarded.

So, the standard 32-bit libs installed are enough or e@h has all its 32-bit stuff included in the downloads.

The completed tasks are:

Task 199891818

Task 199821599

Task 199821513

Task 199775290

All looks fine.

[...]

[edit] Validated against both Microsoft Windows and Apple Darwin fine. [/edit]

A few more have gone through fine. Curiously, The Atom D510 is consistently claiming about 1/3rd of the credit actually granted:

"74.97 251.16 Global Correlations S5 search #1 v1.05 (S5GCESSE2)"

Yet another "credits quirk"?

Happy crunchin',
Martin

See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

Richard Haselgrove
Richard Haselgrove
Joined: 10 Dec 05
Posts: 2142
Credit: 2776391484
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RE: Yet another "credits

Message 99686 in response to message 99685

Quote:
Yet another "credits quirk"?


Yes: every Einstein task has been granted about three times more than the website shows as 'claimed' - for the last several years.

Since the BOINC client doesn't actually "claim" credit as such - it merely reports time and work metrics - all such figures are calculated on the project web site.

ML1
ML1
Joined: 20 Feb 05
Posts: 347
Credit: 86316101
RAC: 316

RE: RE: Yet another

Message 99687 in response to message 99686

Quote:
Quote:
Yet another "credits quirk"?

Yes: every Einstein task has been granted about three times more than the website shows as 'claimed' - for the last several years.


OK. Nothing new then?...

Quote:
Since the BOINC client doesn't actually "claim" credit as such - it merely reports time and work metrics - all such figures are calculated on the project web site.


For such a wide disparity, doesn't that rate as something being 'broken'?

Happy crunchin',
Martin

See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

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