API call to determine display attachment

Accelerated Computing CUDA CUDA Programming and Performance
1

In a system with multiple CUDA-capable video cards, is it possible to determine which are attached to displays?

I need this to weight (amongst other factors, like memory size) a choice of which card to use for computation.

2

Not exactly. But you can get whether the device has the watchdog timer from the deviceProp structure filled out by cudaDeviceGetProperties().

3

http://developer.nvidia.com/object/nvapi.html

4

There’s no reliable way to map NVAPI device ID (or handel) to NVAPI device ID (or handle), so it won’t work.

5

Thanks, the watchdog should be a sufficient hint.

6

if you only want to know available memory, use cuMemGetInfo()