namd cuda with geforce 470 (fermi) gpu fatal error at runtime

From: Phil Greer (
Date: Tue May 25 2010 - 13:52:41 CDT

Just wondering if anyone has NAMD working with the new fermi gpus with the cuda 3.0.14 toolkit?

I am trying to test this out on a centos 5.4 64 bit linux box with a geforce 470 card and cuda 3.0.14.

All of the sdk items compile and run happily. In addition I can compile charmm and namd just fine without cuda.

The cuda compiles throw up some minor warnings variables declared or set but never used type, but it will compile.

The problem comes when I try and run a simulation, I get

FATAL ERROR: CUDA error binding force table to texture: invalid texture reference
followed by a stack traceback....

This comes right after phase 6

Was there major changes between cuda-2.3 and cuda-3.0? or have I done something wrong?

-Phil Greer
University of Pittsburgh

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