a question about SCAN at CUDA Computing SDK 4.0

Accelerated Computing CUDA CUDA Programming and Performance
1

For the SCAN algorithm included with CUDA GPU SDK 4.0, the maximum array size is limited to 4*THREADBLOCK_SIZE * THREADBLOCK_SIZE, which is 262144. I try to raise the limit, but got wrong results. Can somebody explain why the maximum array size is limited?

thanks

wenji

2

For the SCAN algorithm included with CUDA GPU SDK 4.0, the maximum array size is limited to 4*THREADBLOCK_SIZE * THREADBLOCK_SIZE, which is 262144. I try to raise the limit, but got wrong results. Can somebody explain why the maximum array size is limited?

thanks

wenji