Multithread Memory Allocation Hang.

Accelerated Computing CUDA CUDA Programming and Performance
1

Working in Win7 x64, building a matlab mex using Visual Studio 2008
and CUDA 3.0 w/2 GTX 470’s in an i7 box. This code has worked on WinXP 32.

My code is structured with 3 threads.
Main thread performs resource loading.
The next 2 threads are for CUDA computation (one per CUDA device).

The code hangs while allocates memory (cudaMallocPitch/cudaHostAlloc) in the main
thread, while “simultaneously” allocating (same calls) or setting constants device for
the computation. I’ve yet to be able to replicate the bug in the stand-a-lone C++
version of the source code - which really disturbs me (running more tests on it).

Any direction would be greatly appreciated!

TIA,
Mark

2

If you read the forums, you’d find this:

[url=“The Official NVIDIA Forums | NVIDIA”]The Official NVIDIA Forums | NVIDIA

Thanks me! :">

3

If you read the forums, you’d find this:

[url=“The Official NVIDIA Forums | NVIDIA”]http://forums.nvidia.com/index.php?showtopic=152020[/url]

Thanks me! :">