Re: [AMBER] GPU error GTX card.

From: David A Case <>
Date: Wed, 21 Jan 2015 19:58:31 -0500

On Wed, Jan 21, 2015, BERGY wrote:

> I am running amber14 in a machine that came with preinstalled software of
> cuda and amber14.
> I get the following error during my runs.

Do the pmemd.cuda and pmemd.cuda.MPI test cases pass?

> cudaMemcpy GpuBuffer::Download failed unspecified launch failure
> I have 2 x NVIDIA GeForce GTX 780cards
> Is it a problem with the card or I a error in my script.
> I submit as.....
> mpirun -np 2 pmemd.cuda.MPI -O -i

Usual debugging: make sure a (short) run using a CPU works OK; then try
the same thing with a single GPU. See if you find something that gives
more clues about what is going on.


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Received on Wed Jan 21 2015 - 17:00:03 PST
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