Galois::Runtime::MM Namespace Reference

Memory management functionality. More...

Classes
class	ThreadAwarePrivateHeap
	Per-thread heaps using Galois thread aware construct. More...
class	LockedHeap
	Apply a lock to a heap. More...
class	ZeroOut
class	AddHeader
	Add a header to objects. More...
class	OwnerTaggedHeap
	Allow looking up parent heap pointers. More...
class	FreeListHeap
	Maintain a freelist. More...
class	SelfLockFreeListHeap
	Maintain a freelist using a lock which doesn't cover SourceHeap. More...
class	BlockAlloc
class	SimpleBumpPtr
	This implements a bump pointer though chunks of memory. More...
class	SimpleBumpPtrWithMallocFallback
	This implements a bump pointer though chunks of memory that falls back to malloc if the source heap cannot accommodate an allocation. More...
class	SystemBaseAlloc
	This is the base source of memory for all allocators. More...
class	SizedAllocatorFactory
class	FixedSizeAllocator
class	FSBGaloisAllocator< void >
class	FSBGaloisAllocator
class	ExternRefGaloisAllocator< void, AllocTy >
class	ExternRefGaloisAllocator
Functions
void *	pageAlloc ()
void	pageFree (void *)
void	pagePreAlloc (int numpages)
	Preallocate numpages large pages for each thread.
void	pageIn (void *buf, size_t len)
	Forces the given block to be paged into physical memory.
int	numPageAllocTotal ()
	Returns total large pages allocated by Galois memory management subsystem.
int	numPageAllocForThread (unsigned tid)
	Returns total large pages allocated for thread by Galois memory management subsystem.
int	numNumaAllocForNode (unsigned nodeid)
	Returns total small pages allocated by OS on a NUMA node.
int	numNumaNodes ()
	Returns number of NUMA nodes on machine.
void *	largeInterleavedAlloc (size_t bytes, bool full=true)
	Allocates memory interleaved across NUMA nodes.
void	largeInterleavedFree (void *mem, size_t bytes)
	Frees memory allocated by largeInterleavedAlloc().
void *	largeAlloc (size_t bytes, bool preFault=true)
	Allocates a large block of memory.
void	largeFree (void *mem, size_t bytes)
	Frees memory allocated by largeAlloc().
void	printInterleavedStats (int minPages=16 *1024)
	Print lines from /proc/pid/numa_maps that contain at least n small pages.
Variables
const size_t	smallPageSize = 4*1024
const size_t	pageSize = 2*1024*1024

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Detailed Description

Memory management functionality.

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Function Documentation

void * Galois::Runtime::MM::largeAlloc	(	size_t	bytes,
		bool	preFault = true
	)

Allocates a large block of memory.

void Galois::Runtime::MM::largeFree	(	void *	mem,
		size_t	bytes
	)

Frees memory allocated by largeAlloc().

void * Galois::Runtime::MM::largeInterleavedAlloc	(	size_t	bytes,
		bool	full = true
	)

Allocates memory interleaved across NUMA nodes.

If full, allocate across all NUMA nodes; otherwise, allocate across NUMA nodes corresponding to active threads.

void Galois::Runtime::MM::largeInterleavedFree	(	void *	mem,
		size_t	bytes
	)

Frees memory allocated by largeInterleavedAlloc().

int Galois::Runtime::MM::numNumaAllocForNode

(

unsigned

nodeid

)

Returns total small pages allocated by OS on a NUMA node.

int Galois::Runtime::MM::numNumaNodes

(

)

Returns number of NUMA nodes on machine.

int Galois::Runtime::MM::numPageAllocForThread

(

unsigned

tid

)

Returns total large pages allocated for thread by Galois memory management subsystem.

int Galois::Runtime::MM::numPageAllocTotal

(

)

Returns total large pages allocated by Galois memory management subsystem.

void * Galois::Runtime::MM::pageAlloc

(

)

void Galois::Runtime::MM::pageFree

(

void *

m

)

void Galois::Runtime::MM::pageIn	(	void *	buf,
		size_t	len
	)

Forces the given block to be paged into physical memory.

void Galois::Runtime::MM::pagePreAlloc

(

int

numpages

)

Preallocate numpages large pages for each thread.

void Galois::Runtime::MM::printInterleavedStats

(

int

minPages = 16*1024

)

Print lines from /proc/pid/numa_maps that contain at least n small pages.

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Variable Documentation

const size_t Galois::Runtime::MM::pageSize = 2*1024*1024

const size_t Galois::Runtime::MM::smallPageSize = 4*1024