Unified-memory hints (advisory; no-ops in the single-address-space sim)

The sim keeps host and device in one address space, so prefetching and advice change nothing — they exist only so unified-memory code COMPILES and RUNS.

Defined in code/simulator.h.

This page documents 7 symbols: 1 macros, 2 enums, 4 functions.

Macros

Signature	Description	Availability	Location	Example
cudaCpuDeviceId(-1)	The sim keeps host and device in one address space, so prefetching and advice change nothing — they exist only so unified-memory code COMPILES and RUNS.	sim only	simulator.h:2191

Enums

Signature	Description	Availability	Location	Example
enum cudaMemLocationType	CUDA 13 replaced the int-device argument with a cudaMemLocation struct; accept that spelling too so the same source compiles under CUDA 13 nvcc and the sim.	sim only	simulator.h:2207
enum cudaMemoryAdvise		sim only	simulator.h:2193

Functions

Signature	Description	Availability	Location	Example
inline cudaError_t cudaMemAdvise(const void* , size_t , cudaMemoryAdvise , int )		sim only	simulator.h:2201
inline cudaError_t cudaMemAdvise(const void* , size_t , cudaMemoryAdvise , cudaMemLocation )		sim only	simulator.h:2214
inline cudaError_t cudaMemPrefetchAsync(const void* , size_t , int , cudaStream_t = nullptr)		sim only	simulator.h:2203
inline cudaError_t cudaMemPrefetchAsync(const void* , size_t , cudaMemLocation , unsigned = 0, cudaStream_t = nullptr)		sim only	simulator.h:2212