GVT Class Reference

GVT chare group for estimating GVT. More...

#include <gvt.h>

Inheritance diagram for GVT:

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Collaboration diagram for GVT:

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Public Member Functions
	GVT (void)
	Basic Constructor.
	GVT (CkMigrateMessage *msg)
	Migration Constructor.
void	pup (PUP::er &p)
	PUP routine.
int	getGVTIterationCount ()
	ENTRY: return the number of GVT iterations so far.
void	sumGVTIterationCounts ()
	ENTRY: Contribute the current GVT iteration count to a summation reduction at the end of the simulation.
void	runGVT (UpdateMsg *)
	ENTRY: Run the GVT.
void	computeGVT (UpdateMsg *)
	ENTRY: Gathers PVT reports; calculates and broadcasts GVT to PVTs.
void	addSR (SRentry **SRs, SRentry *e, POSE_TimeType og, int ne)
	Adds incoming send/recv information to a list.
Data Fields
int	gvtIterationCount
	Counts the number of GVT interations.
Private Attributes
localStat *	localStats
POSE_TimeType	estGVT
	Latest GVT estimate.
int	inactive
	Inactivity status: number of iterations since GVT has changed.
POSE_TimeType	inactiveTime
	Time at which GVT last went inactive.
int	nextLBstart
	Number of GVT iterations since last LB run.
POSE_TimeType	lastEarliest
	Earliest send/recv timestamp in previous GVT invocation.
int	lastSends
	Number of sends at lastEarliest.
int	lastRecvs
	Number of receives at lastEarliest.
int	reportsExpected
	Number of PVT reports expected (1 or 2).
POSE_TimeType	optGVT
	optimistic and coservative GVTs
POSE_TimeType	conGVT
int	done
SRentry *	SRs
	used to calculate GVT from PVT reports
int	startOffset

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Detailed Description

GVT chare group for estimating GVT.

Responsibility for GVT estimation shifts between branches after each GVT invocation.

Definition at line 222 of file gvt.h.

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Constructor & Destructor Documentation

GVT::GVT

(

void

)

Basic Constructor.

Definition at line 592 of file gvt.C.

References prioBcMsg::bc, CkLocalBranch(), Converse::CkMyPe(), Converse::CkNumPes(), CkPriorityPtr(), CkSetQueueing(), conGVT, done, estGVT, gvtIterationCount, inactive, inactiveTime, int, lastEarliest, lastRecvs, lastSends, POSE_Config::lb_on, POSE_Config::lb_skip, localStats, nextLBstart, optGVT, p, pose_config, POSE_UnsetTS, reportsExpected, SRs, startOffset, and theLocalStats.

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GVT::GVT

(

CkMigrateMessage *

msg

)

[inline]

Migration Constructor.

Definition at line 260 of file gvt.h.

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Member Function Documentation

void GVT::pup

(

PUP::er &

p

)

[virtual]

PUP routine.

Reimplemented from Group.

Definition at line 628 of file gvt.C.

References CkLocalBranch(), conGVT, done, estGVT, gvtIterationCount, inactive, inactiveTime, PUP::er::isUnpacking(), lastEarliest, lastRecvs, lastSends, localStats, nextLBstart, optGVT, SRentry::pup(), reportsExpected, SRs, startOffset, and theLocalStats.

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int GVT::getGVTIterationCount

(

)

[inline]

ENTRY: return the number of GVT iterations so far.

Definition at line 264 of file gvt.h.

References gvtIterationCount.

Referenced by pvtObjects::StratCalcs().

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void GVT::sumGVTIterationCounts

(

)

[inline]

ENTRY: Contribute the current GVT iteration count to a summation reduction at the end of the simulation.

Definition at line 268 of file gvt.h.

References CkReductionMgr::contribute(), gvtIterationCount, POSE_sumGVTIterations(), and CkReduction::sum_int.

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void GVT::runGVT

(

UpdateMsg *

m

)

ENTRY: Run the GVT.

Updates data fields with info from previous GVT estimation. Fires off PVT calculations on all PVT branches.

Definition at line 669 of file gvt.C.

References Converse::CkMyPe(), estGVT, UpdateMsg::inactive, inactive, UpdateMsg::inactiveTime, inactiveTime, localStats, UpdateMsg::nextLB, nextLBstart, UpdateMsg::optPVT, pose_config, UpdateMsg::runGVTflag, POSE_Config::stats, localStat::TimerStart(), and localStat::TimerStop().

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void GVT::computeGVT

(

UpdateMsg *

m

)

ENTRY: Gathers PVT reports; calculates and broadcasts GVT to PVTs.

Definition at line 689 of file gvt.C.

References addSR(), CkFreeMsg(), Converse::CkMyPe(), Converse::CkNumPes(), conGVT, UpdateMsg::conPVT, GVTMsg::done, done, GVTMsg::estGVT, estGVT, localStat::GvtInc(), gvtIterationCount, UpdateMsg::inactive, inactive, UpdateMsg::inactiveTime, inactiveTime, POSE_Config::lb_on, POSE_Config::lb_skip, localStats, UpdateMsg::maxSR, SRentry::next, UpdateMsg::nextLB, nextLBstart, UpdateMsg::numEntries, optGVT, UpdateMsg::optPVT, p, pose_config, POSE_endtime, POSE_stop(), POSE_UnsetTS, SRentry::recvs, reportsExpected, UpdateMsg::runGVTflag, SRentry::sends, UpdateMsg::SRs, SRs, startOffset, POSE_Config::stats, localStat::SwitchTimer(), TheLBG, localStat::TimerStart(), localStat::TimerStop(), and SRentry::timestamp.

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void GVT::addSR	(	SRentry **	SRs,
		SRentry *	e,
		POSE_TimeType	og,
		int	ne
	)

Adds incoming send/recv information to a list.

Definition at line 869 of file gvt.C.

References SRentry::next, POSE_UnsetTS, SRentry::recvs, SRentry::sends, and SRentry::timestamp.

Referenced by computeGVT().

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Field Documentation

localStat* GVT::localStats [private]

Definition at line 225 of file gvt.h.

Referenced by computeGVT(), GVT(), pup(), and runGVT().

POSE_TimeType GVT::estGVT [private]

Latest GVT estimate.

Definition at line 228 of file gvt.h.

Referenced by computeGVT(), GVT(), pup(), and runGVT().

int GVT::inactive [private]

Inactivity status: number of iterations since GVT has changed.

Definition at line 230 of file gvt.h.

Referenced by computeGVT(), GVT(), pup(), and runGVT().

POSE_TimeType GVT::inactiveTime [private]

Time at which GVT last went inactive.

Definition at line 232 of file gvt.h.

Referenced by computeGVT(), GVT(), pup(), and runGVT().

int GVT::nextLBstart [private]

Number of GVT iterations since last LB run.

Definition at line 234 of file gvt.h.

Referenced by computeGVT(), GVT(), pup(), and runGVT().

POSE_TimeType GVT::lastEarliest [private]

Earliest send/recv timestamp in previous GVT invocation.

Definition at line 236 of file gvt.h.

Referenced by GVT(), and pup().

int GVT::lastSends [private]

Number of sends at lastEarliest.

Definition at line 238 of file gvt.h.

Referenced by GVT(), and pup().

int GVT::lastRecvs [private]

Number of receives at lastEarliest.

Definition at line 240 of file gvt.h.

Referenced by GVT(), and pup().

int GVT::reportsExpected [private]

Number of PVT reports expected (1 or 2).

Definition at line 242 of file gvt.h.

Referenced by computeGVT(), GVT(), and pup().

POSE_TimeType GVT::optGVT [private]

optimistic and coservative GVTs

Definition at line 245 of file gvt.h.

Referenced by computeGVT(), GVT(), and pup().

POSE_TimeType GVT::conGVT [private]

Definition at line 245 of file gvt.h.

Referenced by computeGVT(), GVT(), and pup().

int GVT::done [private]

Definition at line 246 of file gvt.h.

Referenced by computeGVT(), GVT(), and pup().

SRentry* GVT::SRs [private]

used to calculate GVT from PVT reports

Definition at line 248 of file gvt.h.

Referenced by computeGVT(), GVT(), and pup().

int GVT::startOffset [private]

Definition at line 249 of file gvt.h.

Referenced by computeGVT(), GVT(), and pup().

int GVT::gvtIterationCount

Counts the number of GVT interations.

Definition at line 255 of file gvt.h.

Referenced by computeGVT(), getGVTIterationCount(), GVT(), pup(), and sumGVTIterationCounts().

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

• libs/ck-libs/pose/gvt.h
• libs/ck-libs/pose/gvt.C