ComlibSectionInfo Class Reference
[Charm++ Communication Optimization Framework]

Helps a communication library strategy manage array sections, creating unique identifiers for sections, and parsing messages. More...

#include <ComlibSectionInfo.h>

Collaboration diagram for ComlibSectionInfo:

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Public Member Functions
	ComlibSectionInfo ()
void	initSectionID (CkSectionID *sid)
	Create a unique identifier for the supplied CkSectionID.
void	processOldSectionMessage (CharmMessageHolder *cmsg)
CkMcastBaseMsg *	getNewDeliveryErrorMsg (CkMcastBaseMsg *base)
	Create a new message to be sent to the root processor of this broadcast to tell it that we missed some objects during delivery.
ComlibMulticastMsg *	getNewMulticastMessage (CharmMessageHolder *cmsg, int needSort, int instanceID)
	Starting from a message to be sent, it generates a new message containing the information about the multicast, together with the message itself.
void	unpack (envelope *cb_env, int &nLocalElems, CkArrayIndex *&destIndices, envelope *&env)
	Given a ComlibMulticastMsg arrived through the network as input (cb_env), separate it into its basic components.
void	localMulticast (envelope *env)
void	getPeCount (int nindices, CkArrayIndex *idxlist, const CkArrayID &destArrayID, int &npes, int &nidx, ComlibMulticastIndexCount *&counts, int *&belongs)
	Returns the number of remote procs involved in the array index list, the number of elements each proc has, and the mapping between indices and procs.
void	getPeList (envelope *cb_env, int npes, int *&pelist)
void	getRemotePelist (int nindices, CkArrayIndex *idxlist, CkArrayID &destArrayID, int &npes, int *&pelist)
	Returns the list of remote procs (therefore not including our processor) involved in the array index list.
void	getPeList (int nindices, CkArrayIndex *idxlist, CkArrayID &destArrayID, int &npes, int *&pelist)
	Returns the same list as getRemotePeList, only that it does not exclude the local processor from the list if it is involved.
void	getLocalIndices (int nindices, CkArrayIndex *idxlist, CkArrayID &destArrayID, CkVec< CkArrayIndex > &idx_vec)
void	getNodeLocalIndices (int nindices, CkArrayIndex *idxlist, CkArrayID &destArrayID, CkVec< CkArrayIndex > &idx_vec)
void	pup (PUP::er &p)
Private Attributes
int	MaxSectionID
	Maximum section id used so far.

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Detailed Description

Helps a communication library strategy manage array sections, creating unique identifiers for sections, and parsing messages.

The class maintains a counter for generating unique ids for each section. It also provides utility functions that can extract information such as PE lists from messages.

Definition at line 120 of file ComlibSectionInfo.h.

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Field Documentation

int ComlibSectionInfo::MaxSectionID [private]

Maximum section id used so far.

Incremented for each new CkSectionID that gets created. Will be used (along with the source PE) to access a hashtable on remote processors, when looking up persistent data for the section.

Definition at line 125 of file ComlibSectionInfo.h.

Referenced by getNewMulticastMessage().

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The documentation for this class was generated from the following files:

• ck-com/ComlibSectionInfo.h
• ck-com/ComlibSectionInfo.C