[01100011]

Sure, but pinned memory is often a limited resource and requires the GPU to issue PCI transactions. Depending on your needs, it's generally better to copy to/from the GPU explicitly, which can be done asynchronously, hiding the overhead behind other work to a degree.

[jhj]

In CUDA, some transfers involving pageable host memory are completely synchronous from the perspective of the host, even if you use `cudaMemcpyAsync`:

https://docs.nvidia.com/cuda/cuda-runtime-api/api-sync-behav...

Pinned memory is typically used to get around the synchronization aspects.