Constant memory

[TomWambsgans]

Thank you for this crate. I was wondering how could I use cudaMemcpyToSymbol to copy data to CUDA constant memory ?

[chelsea0x3b]

Hey I'm not familiar with that api call. But its currently present in runtime sys level bindings, so we should be able to add something to result/safe level apis. Do you have any example usage for that call?

[TomWambsgans]

Thanks for you answer. I'm not a GPU expert, but I think the main usage of constant memory is to have read only memory where all threads access the same memory address at the same time (or at least a small number). And my understanding is that we need to use cudaMemcpyToSymbol to transfer data from RAM to GPU constant memory.

[chelsea0x3b]

Recently was merged into main in #478