Re: [AMBER] cudaMemcpy GpuBuffer::Download failed unspecified launch failure

From: Jason Swails <>
Date: Thu, 18 Jul 2013 00:23:28 -0400

On Wed, Jul 17, 2013 at 7:37 PM, Hailin Huang <>wrote:

> I put the files on my skydrive since they are too large to be sent through
> email.

Another thing that is always worth trying on the GPU code IMO is to run the
simulation on CPUs. Often enough, you will see a problem that has a more
informative error message.

This way, if the CPU code works, then you have stronger evidence that there
might be a bug in the GPU code that your system happened to trip. If the
CPU crashes as well, the issue is more likely your setup.


Jason M. Swails
Rutgers University
Postdoctoral Researcher
AMBER mailing list
Received on Wed Jul 17 2013 - 21:30:02 PDT
Custom Search