1. An apparatus comprising: a memory device to hold a first value to represent a first access distance associated with a first local memory, which is to be mapped into an address space, based on a first memory type of the first local memory; and a second value to represent a second access distance associated with a second local memory, which is to be mapped into the address space, based on a second memory type of the second local memory, wherein a time-critical memory access is to be directed to the first local memory in response to the first and second values indicating the first local memory has a smaller access distance than the second local memory, and wherein a non-time critical memory access is to be directed to the second local memory in response to the first and second values indicating the second local memory has a larger access distance than the first local memory.