cudaHostAlloc on 2.2

Accelerated Computing CUDA CUDA Programming and Performance
1

I’m trying to use Mapped-memory and the so called zero-copy, but I’m having a few problems with it…

I’m trying to do this:

cudaHostAlloc((void**)&stream_in, sizeof(soa), cudaHostAllocMapped);

checkCUDAError("cudaHostAllocMapped");

Which results in a: “Cuda error: cudaHostAllocMapped: feature is not yet implemented.”.

I’m using the 2.2SDK and Toolkit so this should work, right?

2

Ok, forget it:

“Device 0 cannot map host memory”

What cards do support this?

3

GT200 and MCP79 (9400M) at the moment. Make sure you’re using the correct driver.

4

Well I’m using the one provided on the download site.

I’ll try to get my hands on a gt285 to try…

Thanks!