[gmx-users] graphics card fail during mdrun

2014-01-27 Thread unitALX
Hello!

I was running a simulation using both of the graphics cards on my desktop (I
have one Tesla C2075 and one Quadro 2000, which also handles monitor
output). I am pretty sure the Quadro 2000 has failed this morning, and I was
wondering, what happens to an mdrun in progress when one of the graphics
cards fails?



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Re: [gmx-users] graphics card fail during mdrun

2014-01-27 Thread Szilárd Páll
The behavior of most programs in case of a hardware failure is
undefined. However, as an MD simulation is quite sensitive to data
corruption, the simulation will most often crash immediately after
such an event. However, I can also imagine that mdrun ends up hanging,
e.g. waiting for data from the GPU.

How do you know that the card has failed? In what way did it fail?
Were you using both cards?

Btw, the Quadro 2000 is a rather slow card, did it really improve
performance using it together with the C2075 (in the same
run/simulation)?


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Szilárd


On Mon, Jan 27, 2014 at 1:38 PM, unitALX alec.zan...@gmail.com wrote:
 Hello!

 I was running a simulation using both of the graphics cards on my desktop (I
 have one Tesla C2075 and one Quadro 2000, which also handles monitor
 output). I am pretty sure the Quadro 2000 has failed this morning, and I was
 wondering, what happens to an mdrun in progress when one of the graphics
 cards fails?



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