Memories from CUDA - Pinned memory (III)

The main motivation for using pinned memory is to perform asynchronous transfers of data from the host to the device. This is accomplished using cudaMemcpyAsync and related functions.  Additionally, certain performance benefits come with pinned (or page-locked) memory and additional performance benefit can be obtained by using write-combined memory in certain cases. In this post we give a few examples about how to allocate pinned memory and we investigate its features.