FEM_lock Class Reference

there is one fem_lock associated with every FEM_Mesh: Chunk Lock (no longer in use) More...

#include <fem_lock.h>

Collaboration diagram for FEM_lock:


Public Member Functions
	FEM_lock ()
	FEM_lock (int i, femMeshModify *m)
	This entire class is DEPRECATED! It provides locking mechanism for chunks.
	~FEM_lock ()
int	lock (int numNodes, int nodes, int numElems, int elems, int elemType=0)
	locking of the chunks is blocking and is strictly in ascending order.
int	unlock ()
	Since at one point of time one chunk can only lock one set of chunks for one operation, one does not need to pass arguments to unlock.
int	lock (int chunkNo, int own)
int	unlock (int chunkNo, int own)
	For sanity, only the owner should unlock it.
int	getIdx ()
	FEM_lock ()
	default constructor
	FEM_lock (int i, femMeshModify *m)
	constructor
	FEM_lock (femMeshModify *m)
	constructor
	~FEM_lock ()
	destructor
void	pup (PUP::er &p)
	Pup this object.
int	getIdx ()
	Return the index of this chunk.
int	lock (int numNodes, int nodes, int numElems, int elems, int elemType=0)
	locks all chunks which contain all the following nodes and elements
int	unlock ()
	unlock all the chunks this chunk has locked currently
int	lock (int chunkNo, int own)
	chunk 'own' locks the chunk 'chunkNo'
int	unlock (int chunkNo, int own)
	chunk 'own' unlocks the chunk 'chunkNo'
Private Member Functions
bool	existsChunk (int index)
bool	existsChunk (int index)
	Is chunk 'index' locked by this chunk currently.
Private Attributes
int	idx
	Index of the lock (chunk).
int	owner
	Current owner of the lock.
bool	isOwner
	Is there an owner for the lock.
bool	isLocked
	Is the chunk locked.
bool	hasLocks
	Does this chunk have locks.
bool	isLocking
	Is this chunk locking some chunks.
bool	isUnlocking
	Is this chunk unlocking some chunks.
CkVec< int >	lockedChunks
femMeshModify *	mmod
CkVec< int >	lockedChunks
	The list of chunks locked by this chunk.
femMeshModify *	mmod
	cross-pointer to the femMeshModify object

Detailed Description

there is one fem_lock associated with every FEM_Mesh: Chunk Lock (no longer in use)

Definition at line 19 of file fem_lock.h.

Constructor & Destructor Documentation

FEM_lock::FEM_lock ( ) [inline]

Definition at line 34 of file fem_lock.h.

FEM_lock::FEM_lock	(	int	i,
		femMeshModify *	m
	)

This entire class is DEPRECATED! It provides locking mechanism for chunks.

Definition at line 9 of file fem_lock.C.

References hasLocks, idx, isLocked, isLocking, isOwner, isUnlocking, lockedChunks, mmod, owner, and CkVec< T >::removeAll().

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FEM_lock::~FEM_lock ( )

Definition at line 21 of file fem_lock.C.

References hasLocks, lockedChunks, and unlock().

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FEM_lock::FEM_lock ( ) [inline]

default constructor

Definition at line 38 of file ParFUM_locking.h.

FEM_lock::FEM_lock	(	int	i,
		femMeshModify *	m
	)

constructor

FEM_lock::FEM_lock ( femMeshModify * m )

constructor

Definition at line 25 of file lock.C.

References hasLocks, idx, isLocked, isLocking, isOwner, isUnlocking, lockedChunks, mmod, owner, and CkVec< T >::removeAll().

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FEM_lock::~FEM_lock ( )

destructor

Member Function Documentation

bool FEM_lock::existsChunk ( int index ) [private]

Definition at line 29 of file fem_lock.C.

References lockedChunks, and CkVec< T >::size().

Referenced by lock().

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int FEM_lock::lock	(	int	numNodes,
		int *	nodes,
		int	numElems,
		int *	elems,
		int	elemType = `0`
	)

locking of the chunks is blocking and is strictly in ascending order.

will only return if it gets the locks the set of nodes or elems that a chunk can ask to be locked can either be shared, ghosts or local nodes/elements.

Definition at line 39 of file fem_lock.C.

References CthYield(), CpuTopoDetails::done, FEM_Mesh::elem, existsChunk(), femMeshModify::fmMesh, femMeshModify::fmUtil, free(), FEM_MUtil::getChunkNos(), FEM_Entity::ghost, hasLocks, idx, FEM_Entity::is_valid(), isLocked, isLocking, isOwner, isUnlocking, lockedChunks, mmod, FEM_Mesh::node, CkVec< T >::push_back(), CkVec< T >::removeAll(), and CkVec< T >::size().