Tesla C1060 and cudaSetDevice

Accelerated Computing CUDA CUDA Programming and Performance
1

Hello,

We are from the research group on natural computing of the University of Seville. We have a new machine with a Tesla C1060, We also have another card, a GeForce 9400GT, in the system, which is the system main one.

Our problem is that in every program, compiled in CUDA (we use CUDA 2.1) the time of cudaSetDevice takes about 3-4 seconds (it is always, for all the examples in the SDK (deviceQuery, MatrixMul, etc and in our application). Can you help us with this?

We have configured the following machine: a 32bits ubuntu server installed, 8GB of RAM, Intel core2 Quad, apache, subversion, etc, withour X server (only text).
The rest of the application works properly and perfect, but only in this call, it takes too much time.

Best Regards

Miguel Ángel

2

Context creation taking a long time on console Linux is something we’re aware of and are working to improve.

3

Hello.

I am wondering is this still an issue even in CUDA 2.2 and a Tesla 1U server with Tesla C870 GPUs.

I have already made a post below, but there has not been a response

http://forums.nvidia.com/index.php?showtopic=100767

Thanks and apologies for the double posts.

–

Perhaad