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p q | 3 Sep 2009 19:45
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basic facts

Hello List

here are my initial questions :

- how many A5.1 engines can be running at the same time on a Streaming Core with compute capability of 1.2 and 1.3 ?
- where to download the result of "occupancy test" excel file for this implementation of A5.1 ?
- how much GPU memory we need for optimal operations on GTX285+ ?
- how to transfer data from GPU memory to main memory ? cudahostalloc ?

thank you
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Sascha Krissler | 3 Sep 2009 21:14
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Re: basic facts

> here are my initial questions :
> 
> - how many A5.1 engines can be running at the same time on a 
> Streaming Core with compute capability of 1.2 and 1.3 ?

typical configuration is 1 block per MP and 256 threads per block
resulting in 32threads per physical core.

> - where to download the result of "occupancy test" excel file for 
> this implementation of A5.1 ?

such a file does not exist.

> - how much GPU memory we need for optimal operations on GTX285+ ?

roughly 300kbyte. (32 bytes per chains being worked on times 30 blocks times 256 threads)
+ 10-20 kbytes for the lookup tables.

> - how to transfer data from GPU memory to main memory ? cudahostalloc 
> ?

cudaMemcpyDeviceToHost

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p q | 4 Sep 2009 15:02
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Re: basic facts



thank you .
- so if my GPU says it has 240 Cores it means i can run 240*32 A5.1 generator any given moment of time ? how much does it take for one A5.1 to finish ? generally depending on my GPU configuration and its frequency how to compute my computation capability based on this code ?



---------- Forwarded message ----------
From: Sascha Krissler <sascha.krissler-S0/GAf8tV78@public.gmane.org>
Date: Thu, Sep 3, 2009 at 11:44 PM
Subject: Re: [A51] basic facts
To: a51-Gjhu/N1EzaMP3drIcvDWNA@public.gmane.orglextor.com


> here are my initial questions :
>
> - how many A5.1 engines can be running at the same time on a
> Streaming Core with compute capability of 1.2 and 1.3 ?

typical configuration is 1 block per MP and 256 threads per block
resulting in 32threads per physical core.

> - where to download the result of "occupancy test" excel file for
> this implementation of A5.1 ?

such a file does not exist.

> - how much GPU memory we need for optimal operations on GTX285+ ?

roughly 300kbyte. (32 bytes per chains being worked on times 30 blocks times 256 threads)
+ 10-20 kbytes for the lookup tables.

> - how to transfer data from GPU memory to main memory ? cudahostalloc
> ?

cudaMemcpyDeviceToHost


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Sascha Krissler | 4 Sep 2009 15:17
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Re: basic facts

you can pool 240*32 generators on the device, at any given
moment only 240 are executed. to compute the your performance
you would have to measure how long a single A5/1 computation takes
and multiply accordingly. Since you can get this number simply by
running the program, why bother?
240 cores should give you around 150million A5/1 per second at standard 600mhz.

> thank you .
> - so if my GPU says it has 240 Cores it means i can run 240*32 A5.1 
> generator any given moment of time ? how much does it take for one A5.
> 1 to finish ? generally depending on my GPU configuration and its 
> frequency how to compute my computation capability based on this code 
> ?
> 
> ---------- Forwarded message ----------
> From:  *Sascha Krissler*<sascha.krissler@...>
> Date: Thu, Sep 3, 2009 at 11:44 PM
> Subject: Re: [A51] basic facts
> To: a51@...
> 
> > here are my initial questions :
> >
> > - how many A5.1 engines can be running at the same time on a
> > Streaming Core with compute capability of 1.2 and 1.3 ?
> 
> typical configuration is 1 block per MP and 256 threads per block
> resulting in 32threads per physical core.
> 
> > - where to download the result of "occupancy test" excel file for
> > this implementation of A5.1 ?
> 
> such a file does not exist.
> 
> > - how much GPU memory we need for optimal operations on GTX285+ ?
> 
> roughly 300kbyte. (32 bytes per chains being worked on times 30 
> blocks times 256 threads)
> + 10-20 kbytes for the lookup tables.
> 
> > - how to transfer data from GPU memory to main memory ? cudahostalloc
> 
> > ?
> 
> cudaMemcpyDeviceToHost
> 
> ________________________________________________________________
> 
> _______________________________________________ A51 mailing list A51 <at> 
> lists.reflextor.com http://lists.lists.reflextor.com/cgi-bin/mailman/
> 
> listinfo/a51

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Jonathan | 4 Sep 2009 18:58
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Introduction & GPU info

Hey all,
just subscribed to this list.
I was mildly active with the THC group but after what happened to the
old tables the project simply died off.
I tried hosting a new wiki and new list but got no support from old
members... Now to THIS new project!

Graphics card:
I am browsing though the trac on the reflextor site to see what
graphics cards are more recommended...
I am not a gamer so do not have a decent graphics card...
What are the recommended models for this project? I am able to donate
some decent computing and storage for the tables
I am in the UK (london), and was browsing amazon to get a decent gpu
IS this what I assume is the most recommended one?
PALIT 896MB GeF GTX 260 SONIC 216SP PCI-E 2.0 RET
please advise :-)

Regards,
Jon

/******************
Some Interesting websites:
http://ac3bf1.org - My Personal Blog
http://ninux.org - Wireless Community Rome
******************/
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Sascha Krissler | 4 Sep 2009 20:12
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Re: Introduction & GPU info

the best card would give best performance/watt and best performance/dollar.
performance is roughly clock frequency times number of cores.
the palit gtx260 is exactly the card i would buy.
the fastest card, a gtx295, is not the cheapest solution.

> Hey all,
> just subscribed to this list.
> I was mildly active with the THC group but after what happened to the
> old tables the project simply died off.
> I tried hosting a new wiki and new list but got no support from old
> members... Now to THIS new project!
> 
> Graphics card:
> I am browsing though the trac on the reflextor site to see what
> graphics cards are more recommended...
> I am not a gamer so do not have a decent graphics card...
> What are the recommended models for this project? I am able to donate
> some decent computing and storage for the tables
> I am in the UK (london), and was browsing amazon to get a decent gpu
> IS this what I assume is the most recommended one?
> PALIT 896MB GeF GTX 260 SONIC 216SP PCI-E 2.0 RET
> please advise :-)
> 
> Regards,
> Jon
> 
> 
> 
> 
> 
> /******************
> Some Interesting websites:
> http://ac3bf1.org - My Personal Blog
> http://ninux.org - Wireless Community Rome
> ******************/
> _______________________________________________
> A51 mailing list
> A51@...
> http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51
> 

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James Evans | 5 Sep 2009 19:29
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Re: A51 Digest, Vol 4, Issue 3

I'm new here too. Previously I was working with the Nokia 3390. What
happened to the old tables? I was surprised to see the THC wiki slowly
die.

> Hey all,
> just subscribed to this list.
> I was mildly active with the THC group but after what happened to the
> old tables the project simply died off.
> I tried hosting a new wiki and new list but got no support from old
> members... Now to THIS new project!
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Sascha Krissler | 5 Sep 2009 20:09
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Re: A51 Digest, Vol 4, Issue 3

we don't know much about THC's tables. rumours are rumours, you have to ask them yourself.
our tech is nice too, so why not have the fun twice ;).
seriously, since THC's attack did not have the proper impact on the industry we do it again
and hope to generate this influence.

> I'm new here too. Previously I was working with the Nokia 3390. What
> happened to the old tables? I was surprised to see the THC wiki slowly
> die.
> 
> > Hey all,
> > just subscribed to this list.
> > I was mildly active with the THC group but after what happened to the
> > old tables the project simply died off.
> > I tried hosting a new wiki and new list but got no support from old
> > members... Now to THIS new project!
> _______________________________________________
> A51 mailing list
> A51@...
> http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51
> 

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Jonathan | 7 Sep 2009 18:13
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Wiki editing

Hi, where do we get a login for the trac wiki?
Jon

/******************
Some Interesting websites:
http://ac3bf1.org - My Personal Blog
http://ninux.org - Wireless Community Rome
******************/
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Jonathan | 7 Sep 2009 17:19
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Re: Introduction & GPU info

Thanks for answer Sasha (and sorry for double e-mail),
There are two version which I found for this model, and memory seems
to be the only difference

one with 1792 MB
Palit Geforce GTX260 Sonic 1792MB HDMI PCI-Express

And one with 896 MB
PALIT 896MB GeF GTX 260 SONIC 216SP PCI-E 2.0 RET

Is memory (on the GPU) a factor for the A5/1 project?

Thanks
Jon

/******************
Some Interesting websites:
http://ac3bf1.org - My Personal Blog
http://ninux.org - Wireless Community Rome
******************/

2009/9/4 Sascha Krissler <sascha.krissler@...>:
> the best card would give best performance/watt and best performance/dollar.
> performance is roughly clock frequency times number of cores.
> the palit gtx260 is exactly the card i would buy.
> the fastest card, a gtx295, is not the cheapest solution.
>
>> Hey all,
>> just subscribed to this list.
>> I was mildly active with the THC group but after what happened to the
>> old tables the project simply died off.
>> I tried hosting a new wiki and new list but got no support from old
>> members... Now to THIS new project!
>>
>> Graphics card:
>> I am browsing though the trac on the reflextor site to see what
>> graphics cards are more recommended...
>> I am not a gamer so do not have a decent graphics card...
>> What are the recommended models for this project? I am able to donate
>> some decent computing and storage for the tables
>> I am in the UK (london), and was browsing amazon to get a decent gpu
>> IS this what I assume is the most recommended one?
>> PALIT 896MB GeF GTX 260 SONIC 216SP PCI-E 2.0 RET
>> please advise :-)
>>
>> Regards,
>> Jon
>>
>>
>>
>>
>>
>> /******************
>> Some Interesting websites:
>> http://ac3bf1.org - My Personal Blog
>> http://ninux.org - Wireless Community Rome
>> ******************/
>> _______________________________________________
>> A51 mailing list
>> A51@...
>> http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51
>>
>
>
> ______________________________________________________
> GRATIS für alle WEB.DE-Nutzer: Die maxdome Movie-FLAT!
> Jetzt freischalten unter http://movieflat.web.de
>
> _______________________________________________
> A51 mailing list
> A51@...
> http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51
>
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