How many atoms?
Also does this always happen at the same step in the simulation? If so, it
may be an AMBER bug.
If it's happening at random places given the same input however, it's
probably bad hardware
Also, none of the Ge Force cards have been qualified in any way whatsoever
for AMBER or other HPC applications. In general, they work just fine for
them though. You get what you pay for of course.
Scott
On Mon, Feb 24, 2014 at 3:01 AM, Deák Robert <kokumetto.gmail.com> wrote:
> Dear Amber users,
>
> Recently we bought 2 GTX 670 DC mini (
> http://www.asus.com/Graphics_Cards/GTX670DCMOC2GD5/) but with both of them
> I experienced the same error message after random run time.
>
> The message is:
> *cudaMemcpy GpuBuffer::Download failed unspecified launch failure*
>
> With exactly the same input files and input settings there are no error
> messages using a GTX TITAN or a TESLA card. I have tried the GTX 670 cards
> in the other machine, and also a TITAN card in this server, but the error
> is related to GTX 670 cards, independently from the server.
>
> My question is, this type of error message means hardware failure?
>
> These are my input parameters:
> &cntrl
> imin = 0, irest = 0, ntx = 1,
> ntb = 2, pres0 = 1.0, ntp = 1,
> taup = 2.0,
> cut = 11.0, ntr = 0,
> ntc = 2, ntf = 2,
> tempi = 300.0, temp0 = 300.0,
> ntt = 3, gamma_ln = 0.1,
> nstlim = 100000000, dt = 0.002,
> ntpr = 1000, ntwx = 1000, ntwr = 1000,
> ig=1, nscm=1000
> /
>
> Thanks,
> Robert
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>
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Received on Mon Feb 24 2014 - 08:30:03 PST
