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Reference Guide
TPacketizer Class Reference

This class generates packets to be processed on PROOF worker servers.

A packet is an event range (begin entry and number of entries) or object range (first object and number of objects) in a TTree (entries) or a directory (objects) in a file. Packets are generated taking into account the performance of the remote machine, the time it took to process a previous packet on the remote machine, the locality of the database files, etc.

Definition at line 39 of file TPacketizer.h.

Classes

class  TFileNode
 
class  TFileStat
 
class  TSlaveStat
 

Public Member Functions

 TPacketizer (TDSet *dset, TList *slaves, Long64_t first, Long64_t num, TList *input, TProofProgressStatus *st)
 Constructor. More...
 
virtual ~TPacketizer ()
 Destructor. More...
 
Int_t AddWorkers (TList *workers)
 Adds new workers. Returns the number of workers added, or -1 on failure. More...
 
Int_t GetActiveWorkers ()
 Return the number of workers still processing. More...
 
Float_t GetCurrentRate (Bool_t &all)
 Get Estimation of the current rate; just summing the current rates of the active workers. More...
 
Long64_t GetEntriesProcessed (TSlave *sl) const
 Get entries processed by the specified slave. More...
 
TDSetElementGetNextPacket (TSlave *sl, TMessage *r)
 Get next packet. More...
 
- Public Member Functions inherited from TVirtualPacketizer
virtual ~TVirtualPacketizer ()
 Destructor. More...
 
virtual Int_t AddProcessed (TSlave *, TProofProgressStatus *, Double_t, TList **)
  More...
 
virtual Int_t AssignWork (TDSet *, Long64_t, Long64_t)
  More...
 
Long64_t GetBytesRead () const
  More...
 
TListGetConfigParams (Bool_t steal=kFALSE)
  More...
 
Double_t GetCumProcTime () const
  More...
 
Long64_t GetEntriesProcessed () const
  More...
 
virtual Int_t GetEstEntriesProcessed (Float_t, Long64_t &ent, Long64_t &bytes, Long64_t &calls)
  More...
 
TListGetFailedPackets ()
  More...
 
Float_t GetInitTime () const
  More...
 
Float_t GetProcTime () const
  More...
 
TNtupleGetProgressPerf (Bool_t steal=kFALSE)
  More...
 
Long64_t GetReadCalls () const
  More...
 
TMapGetSlaveStats () const
  More...
 
TProofProgressStatusGetStatus ()
  More...
 
Long64_t GetTotalEntries () const
  More...
 
Bool_t IsValid () const
  More...
 
virtual void MarkBad (TSlave *, TProofProgressStatus *, TList **)
  More...
 
void SetFailedPackets (TList *list)
  More...
 
virtual void SetInitTime ()
 Set the initialization time. More...
 
void SetProgressStatus (TProofProgressStatus *st)
  More...
 
void SetTotalEntries (Long64_t ent)
  More...
 
virtual void StopProcess (Bool_t abort, Bool_t stoptimer=kFALSE)
 Stop process. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
ULong_t CheckedHash ()
 Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
  More...
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method. More...
 
virtual void Copy (TObject &object) const
 Copy this to obj. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Option_tGetOption () const
  More...
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
void InvertBit (UInt_t f)
  More...
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
  More...
 
virtual Bool_t IsSortable () const
  More...
 
R__ALWAYS_INLINE Bool_t IsZombie () const
  More...
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout. More...
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
  More...
 
voidoperator new (size_t sz, void *vp)
  More...
 
voidoperator new[] (size_t sz)
  More...
 
voidoperator new[] (size_t sz, void *vp)
  More...
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual void Print (Option_t *option="") const
 This method must be overridden when a class wants to print itself. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
void ResetBit (UInt_t f)
  More...
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
 
void SetBit (UInt_t f)
  More...
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
  More...
 
Int_t TestBits (UInt_t f) const
  More...
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 

Private Member Functions

 TPacketizer ()
  More...
 
 TPacketizer (const TPacketizer &)
  More...
 
TFileStatGetNextActive ()
 Get next active file. More...
 
TFileStatGetNextUnAlloc (TFileNode *node=0)
 Get next unallocated file. More...
 
TFileNodeNextActiveNode ()
 Get next active node. More...
 
TFileNodeNextUnAllocNode ()
 Get next unallocated node. More...
 
void operator= (const TPacketizer &)
  More...
 
void RemoveActive (TFileStat *file)
 Remove file from the list of actives. More...
 
void RemoveActiveNode (TFileNode *)
 Remove node from the list of actives. More...
 
void RemoveUnAllocNode (TFileNode *)
 Remove unallocated node. More...
 
void Reset ()
 Reset the internal datastructure for packet distribution. More...
 
void ValidateFiles (TDSet *dset, TList *slaves, Long64_t maxent=-1, Bool_t byfile=kFALSE)
 Check existence of file/dir/tree an get number of entries. More...
 

Private Attributes

TListfActive
  More...
 
Bool_t fDefMaxWrkNode
  More...
 
TListfFileNodes
  More...
 
Bool_t fHeuristicPSiz
  More...
 
Int_t fMaxPerfIdx
  More...
 
Long_t fMaxSlaveCnt
  More...
 
Int_t fPacketAsAFraction
  More...
 
TListfPackets
  More...
 
Long64_t fPacketSize
  More...
 
TListfUnAllocated
  More...
 

Additional Inherited Members

- Public Types inherited from TVirtualPacketizer
enum  EStatusBits { kIsInitializing = BIT(16) , kIsDone = BIT(17) , kIsTree = BIT(18) }
 
- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) ,
  kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13)
}
 
- Static Public Member Functions inherited from TObject
static Longptr_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 
- Protected Types inherited from TVirtualPacketizer
enum  EUseEstOpt { kEstOff = 0 , kEstCurrent = 1 , kEstAverage = 2 }
 
- Protected Types inherited from TObject
enum  { kOnlyPrepStep = BIT(3) }
 
- Protected Member Functions inherited from TVirtualPacketizer
 TVirtualPacketizer (const TVirtualPacketizer &)
  More...
 
 TVirtualPacketizer (TList *input, TProofProgressStatus *st=0)
 Constructor. More...
 
TDSetElementCreateNewPacket (TDSetElement *base, Long64_t first, Long64_t num)
 Creates a new TDSetElement from from base packet starting from the first entry with num entries. More...
 
Long64_t GetEntries (Bool_t tree, TDSetElement *e)
 Get entries. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Send progress message to client. More...
 
void operator= (const TVirtualPacketizer &)
  More...
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 
void MakeZombie ()
  More...
 
- Protected Attributes inherited from TVirtualPacketizer
Int_t fActWrksLast
  More...
 
Bool_t fAWLastFill
  More...
 
Long_t fCircN
  More...
 
TNtupleDfCircProg
  More...
 
TListfConfigParams
  More...
 
TString fDataSet
  More...
 
Float_t fEffSessLast
  More...
 
Float_t fEvtRateLast
  More...
 
TListfFailedPackets
  More...
 
Float_t fInitTime
  More...
 
TListfInput
  More...
 
Double_t fMaxPacketTime
  More...
 
Float_t fMBsReadLast
  More...
 
Double_t fMinPacketTime
  More...
 
Float_t fProcTime
  More...
 
Float_t fProcTimeLast
  More...
 
TTimerfProgress
  More...
 
TNtuplefProgressPerf
  More...
 
TProofProgressStatusfProgressStatus
  More...
 
Float_t fReportPeriod
  More...
 
TMapfSlaveStats
  More...
 
TTime fStartTime
  More...
 
Bool_t fStop
  More...
 
Float_t fTimeUpdt
  More...
 
Long64_t fTotalEntries
  More...
 
EUseEstOpt fUseEstOpt
  More...
 
Bool_t fValid
  More...
 

#include <TPacketizer.h>

Inheritance diagram for TPacketizer:
[legend]

Constructor & Destructor Documentation

◆ TPacketizer() [1/3]

TPacketizer::TPacketizer ( )
private

◆ TPacketizer() [2/3]

TPacketizer::TPacketizer ( const TPacketizer )
private

◆ TPacketizer() [3/3]

TPacketizer::TPacketizer ( TDSet dset,
TList slaves,
Long64_t  first,
Long64_t  num,
TList input,
TProofProgressStatus st 
)

Constructor.

Definition at line 274 of file TPacketizer.cxx.

◆ ~TPacketizer()

TPacketizer::~TPacketizer ( )
virtual

Destructor.

Definition at line 579 of file TPacketizer.cxx.

Member Function Documentation

◆ AddWorkers()

Int_t TPacketizer::AddWorkers ( TList workers)
virtual

Adds new workers. Returns the number of workers added, or -1 on failure.

Reimplemented from TVirtualPacketizer.

Definition at line 595 of file TPacketizer.cxx.

◆ GetActiveWorkers()

Int_t TPacketizer::GetActiveWorkers ( )
virtual

Return the number of workers still processing.

Reimplemented from TVirtualPacketizer.

Definition at line 1313 of file TPacketizer.cxx.

◆ GetCurrentRate()

Float_t TPacketizer::GetCurrentRate ( Bool_t all)
virtual

Get Estimation of the current rate; just summing the current rates of the active workers.

Reimplemented from TVirtualPacketizer.

Definition at line 1113 of file TPacketizer.cxx.

◆ GetEntriesProcessed()

Long64_t TPacketizer::GetEntriesProcessed ( TSlave sl) const

Get entries processed by the specified slave.

Definition at line 1098 of file TPacketizer.cxx.

◆ GetNextActive()

TPacketizer::TFileStat * TPacketizer::GetNextActive ( )
private

Get next active file.

Definition at line 689 of file TPacketizer.cxx.

◆ GetNextPacket()

TDSetElement * TPacketizer::GetNextPacket ( TSlave sl,
TMessage r 
)
virtual

Get next packet.

Reimplemented from TVirtualPacketizer.

Definition at line 1138 of file TPacketizer.cxx.

◆ GetNextUnAlloc()

TPacketizer::TFileStat * TPacketizer::GetNextUnAlloc ( TFileNode node = 0)
private

Get next unallocated file.

Definition at line 633 of file TPacketizer.cxx.

◆ NextActiveNode()

TPacketizer::TFileNode * TPacketizer::NextActiveNode ( )
private

Get next active node.

Definition at line 705 of file TPacketizer.cxx.

◆ NextUnAllocNode()

TPacketizer::TFileNode * TPacketizer::NextUnAllocNode ( )
private

Get next unallocated node.

Definition at line 660 of file TPacketizer.cxx.

◆ operator=()

void TPacketizer::operator= ( const TPacketizer )
private

◆ RemoveActive()

void TPacketizer::RemoveActive ( TFileStat file)
private

Remove file from the list of actives.

Definition at line 726 of file TPacketizer.cxx.

◆ RemoveActiveNode()

void TPacketizer::RemoveActiveNode ( TFileNode node)
private

Remove node from the list of actives.

Definition at line 737 of file TPacketizer.cxx.

◆ RemoveUnAllocNode()

void TPacketizer::RemoveUnAllocNode ( TFileNode node)
private

Remove unallocated node.

Definition at line 681 of file TPacketizer.cxx.

◆ Reset()

void TPacketizer::Reset ( void  )
private

Reset the internal datastructure for packet distribution.

Definition at line 745 of file TPacketizer.cxx.

◆ ValidateFiles()

void TPacketizer::ValidateFiles ( TDSet dset,
TList slaves,
Long64_t  maxent = -1,
Bool_t  byfile = kFALSE 
)
private

Check existence of file/dir/tree an get number of entries.

Assumes the files have been setup.

Definition at line 779 of file TPacketizer.cxx.

Member Data Documentation

◆ fActive

TList* TPacketizer::fActive
private

Definition at line 51 of file TPacketizer.h.

◆ fDefMaxWrkNode

Bool_t TPacketizer::fDefMaxWrkNode
private

Definition at line 69 of file TPacketizer.h.

◆ fFileNodes

TList* TPacketizer::fFileNodes
private

Definition at line 49 of file TPacketizer.h.

◆ fHeuristicPSiz

Bool_t TPacketizer::fHeuristicPSiz
private

Definition at line 68 of file TPacketizer.h.

◆ fMaxPerfIdx

Int_t TPacketizer::fMaxPerfIdx
private

Definition at line 56 of file TPacketizer.h.

◆ fMaxSlaveCnt

Long_t TPacketizer::fMaxSlaveCnt
private

Definition at line 58 of file TPacketizer.h.

◆ fPacketAsAFraction

Int_t TPacketizer::fPacketAsAFraction
private

Definition at line 60 of file TPacketizer.h.

◆ fPackets

TList* TPacketizer::fPackets
private

Definition at line 47 of file TPacketizer.h.

◆ fPacketSize

Long64_t TPacketizer::fPacketSize
private

Definition at line 53 of file TPacketizer.h.

◆ fUnAllocated

TList* TPacketizer::fUnAllocated
private

Definition at line 50 of file TPacketizer.h.

Libraries for TPacketizer:
[legend]

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