Max No. of threads

Accelerated Computing CUDA CUDA Programming and Performance
1

what is the total no. of threads that can be launched by GTX 295 and how do i find it for any card? the matrix multiplication code given in the programming guide stops working for 8192*8192 matrix. what could be the possible reason??

2

  1. what is the total no. of threads that can be launched by GTX 295 and how do i find it for any card?
    maximum number of blocks in a 2-D grid: 65535 x 65535
    maximum threads per block: 512
    maximum number of threads = 65535 x 65535 x 512

  2. the matrix multiplication code given in the programming guide stops working for 81928192 matrix. what could be the possible reason?
    8192    8192 matrix requires 5.6 s to compute C=A*B, it near threashold of watch-dog problem.

3

You can use cudaGetDeviceProperties to query maximum threads No. for your specific system.

See http://developer.download.nvidia.com/compu…08074d09b7d520c