A MsgMemoryGrp that initializes its data using a messagegrp. More...

#include <util/group/memmsg.h>

Inheritance diagram for sc::MsgMemoryGrp:

Public Member Functions
	MsgMemoryGrp (const Ref< MessageGrp > &msg)

	MsgMemoryGrp (const Ref< KeyVal > &keyval)

void	set_localsize (size_t localsize)
	Set the size of locally held memory. More...

void	sync ()
	Synchronizes all the nodes. More...

Public Member Functions inherited from sc::MemoryGrp
	MemoryGrp (const Ref< KeyVal > &)

int	me () const
	Returns who I am.

int	n () const
	Returns how many nodes there are.

size_t	localsize ()
	Returns the amount of memory residing locally on me().

virtual void *	localdata ()=0
	Returns a pointer to the local data.

distsize_t	localoffset ()
	Returns the global offset to this node's memory.

int	size (int node)
	Returns the amount of memory residing on node.

distsize_t	offset (int node)
	Returns the global offset to node's memory.

distsize_t	totalsize ()
	Returns the sum of all memory allocated on all nodes.

virtual void	activate ()
	Activate is called before the memory is to be used.

virtual void	deactivate ()
	Deactivate is called after the memory has been used.

virtual void *	obtain_writeonly (distsize_t offset, size_t size)=0
	This gives write access to the memory location. No locking is done.

virtual void *	obtain_readwrite (distsize_t offset, size_t size)=0
	Only one thread can have an unreleased obtain_readwrite at a time. More...

virtual void *	obtain_readonly (distsize_t offset, size_t size)=0
	This gives read access to the memory location. No locking is done.

virtual void	release_readonly (void *data, distsize_t offset, size_t size)=0
	This is called when read access is no longer needed.

virtual void	release_writeonly (void *data, distsize_t offset, size_t size)=0
	This is called when write access is no longer needed.

virtual void	release_readwrite (void *data, distsize_t offset, size_t size)=0
	This is called when read/write access is no longer needed. More...

virtual void	write (const void *data, distsize_t offset, size_t size)
	This is used to write data directly. More...

virtual void	sum_reduction (double *data, distsize_t doffset, size_t dsize)
	Perform a sum reduction on double data. More...

virtual void	sum_reduction_on_node (double *data, size_t doffset, size_t dsize, int node=-1)
	Perform a sum reduction on double data localized to a single node. More...

virtual void *	malloc_local (size_t nbyte)
	Allocate data that will be accessed locally only. More...

double *	malloc_local_double (size_t ndouble)
	Allocate double data that will be accessed locally only. More...

virtual void	free_local (void *&data)
	Free data that was allocated with malloc_local, and set the pointer to 0.

void	free_local_double (double *&data)
	Free data that was allocated with malloc_local_double, and set the pointer to 0

virtual void	catchup ()
	Processes outstanding requests. More...

virtual Ref< MemoryGrp >	clone (void)
	Returns a copy of this MemoryGrp specialization that provides an independent communication context. More...

virtual void	print (std::ostream &o=ExEnv::out0()) const
	Prints out information about the object.

Public Member Functions inherited from sc::DescribedClass
	DescribedClass (const DescribedClass &)

DescribedClass &	operator= (const DescribedClass &)

ClassDesc *	class_desc () const MPQC__NOEXCEPT
	This returns the unique pointer to the ClassDesc corresponding to the given type_info object. More...

const char *	class_name () const
	Return the name of the object's exact type.

int	class_version () const
	Return the version of the class.

Ref< DescribedClass >	ref ()
	Return this object wrapped up in a Ref smart pointer. More...

Public Member Functions inherited from sc::RefCount
size_t	identifier () const
	Return the unique identifier for this object that can be compared for different objects of different types. More...

int	lock_ptr () const
	Lock this object.

int	unlock_ptr () const
	Unlock this object.

void	use_locks (bool inVal)
	start and stop using locks on this object

refcount_t	nreference () const
	Return the reference count.

refcount_t	reference ()
	Increment the reference count and return the new count.

refcount_t	dereference ()
	Decrement the reference count and return the new count.

int	managed () const

void	unmanage ()
	Turn off the reference counting mechanism for this object. More...

Protected Attributes
Ref< MessageGrp >	msg_

Protected Attributes inherited from sc::MemoryGrp
int	me_

int	n_

distsize_t *	offsets_

int	debug_

Additional Inherited Members
Static Public Member Functions inherited from sc::MemoryGrp
static MemoryGrp *	initial_memorygrp (int &argc, char **argv)
	Create a memory group. More...

static MemoryGrp *	initial_memorygrp ()
	Create a memory group. More...

static void	set_default_memorygrp (const Ref< MemoryGrp > &)
	The default memory group contains the primary memory group to be used by an application.

static MemoryGrp *	get_default_memorygrp ()
	Returns the default memory group. More...

Protected Member Functions inherited from sc::MemoryGrp
void	obtain_local_lock (size_t start, size_t fence)

void	release_local_lock (size_t start, size_t fence)

Protected Member Functions inherited from sc::RefCount
	RefCount (const RefCount &)

RefCount &	operator= (const RefCount &)