constant memory with pointer * declaration

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi pros,

I want to copy a big 512 cubic volume to constant memory.

Is there any declaration like:
constant float* volume;

possible? From the programming guide I know that volume has to be of a certain size which I have to set before. But my volume is to big to fit into the constant memory. So I thought about
declaring it with a pointer and the values are copied to the constant memory when needed.

Without success. It says: invalid argument.

Is the texture memory (which is cached, too) the only alternative solution to my problem?

Thank you,
bye moe4life

2

if your array is too big to fit the constant memory, why don’t you malloc it in global memory?

3

I don’t want to malloc it in global memory since I want to optimize the execution time of my algorithm. So I tried to use the cached high bandwidth supported constant memory . But without success.

4

But you should know the constant memory is quite limited. Are you sure that it is enough?