pmalloc_hip.cpp File Reference

#include "gmxpre.h"
#include <cstdlib>
#include "gromacs/gpu_utils/hiputils.h"
#include "gromacs/utility/cstringutil.h"
#include "pmalloc.h"

Include dependency graph for pmalloc_hip.cpp:

Description

Define functions for host-side memory handling when using AMD with HIP devices.

Author

Paul Bauerl paul..nosp@m.baue.nosp@m.r.q@g.nosp@m.mail.nosp@m..com

Functions
void	pmalloc (void **h_ptr, size_t nbytes, const DeviceContext *)
void	pfree (void *h_ptr, const DeviceContext *)
void	pmallocSetDefaultDeviceContext (const DeviceContext *)
void	pmallocClearDefaultDeviceContext ()

Function Documentation

void pfree	(	void *	h_ptr,
		const DeviceContext *
	)

Frees page locked memory allocated with pmalloc. This function can safely be called also with a pointer to a page-locked memory allocated directly with HIP API calls.

void pmalloc	(	void **	h_ptr,
		size_t	nbytes,
		const DeviceContext *
	)

Allocates nbytes of page-locked memory. This memory should always be freed using pfree (or with the page-locked free functions provied by the HIP library).