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Re^6: Tesla c2050


Hi, Firefly still froze calculation (out file in attach)
On Thu Nov 11 '10 7:07pm, Alex Granovsky wrote

>the program does not hang - it simply slows down because
>of severe resource over-subscription. Actually, you can find
>the warning message near the beginning of the output.

>The reason for over-subscription is that you are using very
>non-trivial input file which you in addition have tried to
>modify for your hardware configuration. However, the original
>input was designed to run on the specific hardware configuration
>and to get the most power of it. In particular, it affinitizes
>different classes of threads; and the scheme it uses together
>with your changes causes severe core over-subscription.

>I've attached the template input file which I hope will be
>much more suitable for your hardware configuration.

>Alex Granovsky
>On Thu Nov 11 '10 12:09pm, GadievRadik wrote
>>Hi, Dr. Granovsky, sorry for the late reply.

>>We just finished large MD simulation, and we totally ready to start FF8 calculations.

>>I first step we run simple input file. Firefly8 correctly detect all tesla card and run calculation, but after several steps, calculation froze without any error messages (see attach).  

>>Regards, Gadiev Radik

>>On Sun Nov 7 '10 11:57pm, Alex Granovsky wrote
>>>Hi Radik,

>>>any news on your experiments with updated Firefly binaries?

>>>Alex Granovsky
>>>On Wed Oct 27 '10 10:57am, GadievRadik wrote
>>>>I disable TDR feature, but still have same error in out file.

>>>>I tested system with latest hoomd-blue, it works perfect.
>>>>I guess, this due to the altered architecture of Fermi card.
>>>>Full support of this card start since cudatoolkit 3.1 release.

>>>>Thanks, Radik

>>>>On Tue Oct 26 '10 6:50pm, Alex Granovsky wrote

>>>>>Teslas are labeled as not useable in the output because CUDA driver
>>>>>reports that there is an OS imposed limit on the execution
>>>>>of individual kernel. I do not think this is actually the case
>>>>>as Tesla is not a graphics card. While this is most likely just
>>>>>the driver's misreport, you have two options how to proceed.
>>>>>Namely, you can either completely disable the TDR feature
>>>>>via registry, or contact me off the list for the updated binaries.

>>>>>Alex Granovsky
>>>>>On Tue Oct 26 '10 1:10pm, GadievRadik wrote
>>>>>>Does firefly 7.1G support calculation on latest Nvidia Fermi cards?
>>>>>>When i try run firefly on 3x tesla c2050, in out file cards labled as unsupported.

>>>>>>System Win Server 2009 r2
>>>>>>2x intel Xenon
>>>>>>3x Nvidia Tesla c2050
>>>>>>Cuda toolkit 2.3 and 3.2 installed both 32 and 64 bit installed.
>>>>>>All cuda tests passed.


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