On my hardware I have a CUDA enabled video card an ASUS GTX460, yet Mathematica does not seem to recognize this.
- CUDA Toolkit 4.1
- CUDA SDK 4.0
- NVIDIA Driver 295.49
on Sabayon Linux 64 bit with Mathematica 8.0.0.
For example, following the CUDALink Setup, I get
Needs["CUDALink`"] CUDAQ(* False *) CUDADriverVersion (* CUDADriverVersion::nodriv message raised. *)
The NVIDIA command
/opt/cuda/sdk/C/bin/linux/release/deviceQuery finds the card and reports "passed" as well as listing the card capabilities.
Examples from /opt/cuda/sdk/C/bin/linux/release directory, such as
randomFog, run well.
The relevant shell variables are set as follows:
The Wolfram CUDA reference page CUDA Reference does not explicitly list the GTX 460 GPU. It does list the GTX 460M, the mobile version, and a mysterious GTS 460.
The Wolfram linked NVIDIA CUDA GPUs lists the popular GTX 460 but has no entry at all for the GTS 460. Perhaps this is a typo in the Wolfram documentation, as it would seem unlikely that they wouldn't support a commonplace NVIDIA GPU whilst supporting a seemingly non-existent GPU. If this isn't the case - I'm clearly stuck.
Problems finding the NVIDIA driver
Some poking around suggests that one sticking point is that
is set to
Would anyone know where this is set?
From trying to
CUDADriverVersion it isn't obvious to me where things go wrong.
How do I convince Mathematica that my card supports CUDA?