Re: [AMBER-Developers] problems with latest cuda

From: Scott Le Grand <SLeGrand.nvidia.com>
Date: Fri, 11 Mar 2011 06:08:02 -0800

What I have works for 1AHO and DPDP. So either you have a git issue or I have one. Could you send me your SPDP failure?


-----Original Message-----
From: David A Case [mailto:case.biomaps.rutgers.edu]
Sent: Wednesday, March 09, 2011 07:33
To: amber-developers.ambermd.org
Subject: [AMBER-Developers] problems with latest cuda


Hi Scott, Ross:

I'm having problems with the git repo version of pmemd.cuda_DPDP. Before
getting to the first step, I get this error:

Error: unspecified launch failure launching kernel kReduceForces
cudaFree GpuBuffer::Deallocate failed unspecified launch failure

This happens on the "1AHO" test case I sent earlier (fairly small system,
12 A cutoffs, NPT). A more standard solvated protein, (90 Atoms, NVE, 8 Ang.
cutoff) seems to be OK. Also, the SPDP version seems OK for the 1AHO system,
but SPDP fails with the above message on another (larger) system, also with
big cutoffs and NPT.

Let me know if you want me to re-send the problem test case.

...thanks...dac

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