class TPacketizer: public TVirtualPacketizer


 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.

Function Members (Methods)

TPacketizer(TDSet* dset, TList* slaves, Long64_t first, Long64_t num, TList* input)
voidTObject::AbstractMethod(const char* method) const
virtual voidTObject::AppendPad(Option_t* option = "")
virtual voidTObject::Browse(TBrowser* b)
static TClass*Class()
virtual const char*TObject::ClassName() const
virtual voidTObject::Clear(Option_t* = "")
virtual TObject*TObject::Clone(const char* newname = "") const
virtual Int_tTObject::Compare(const TObject* obj) const
virtual voidTObject::Copy(TObject& object) const
virtual voidTObject::Delete(Option_t* option = "")
virtual Int_tTObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual voidTObject::Draw(Option_t* option = "")
virtual voidTObject::DrawClass() const
virtual TObject*TObject::DrawClone(Option_t* option = "") const
virtual voidTObject::Dump() const
virtual voidTObject::Error(const char* method, const char* msgfmt) const
virtual voidTObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual voidTObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual voidTObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual voidTObject::Fatal(const char* method, const char* msgfmt) const
virtual TObject*TObject::FindObject(const char* name) const
virtual TObject*TObject::FindObject(const TObject* obj) const
Long64_tTVirtualPacketizer::GetBytesRead() const
virtual Option_t*TObject::GetDrawOption() const
static Long_tTObject::GetDtorOnly()
virtual Long64_tGetEntriesProcessed(TSlave* sl) const
virtual Int_tTVirtualPacketizer::GetEstEntriesProcessed(Float_t, Long64_t& ent, Long64_t& bytes)
virtual const char*TObject::GetIconName() const
Float_tTVirtualPacketizer::GetInitTime() const
virtual const char*TObject::GetName() const
virtual TDSetElement*GetNextPacket(TSlave* sl, TMessage* r)
virtual char*TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_tTObject::GetObjectStat()
virtual Option_t*TObject::GetOption() const
Float_tTVirtualPacketizer::GetProcTime() const
virtual const char*TObject::GetTitle() const
Long64_tTVirtualPacketizer::GetTotalEntries() const
virtual UInt_tTObject::GetUniqueID() const
virtual Bool_tTObject::HandleTimer(TTimer* timer)
virtual ULong_tTObject::Hash() const
virtual voidTObject::Info(const char* method, const char* msgfmt) const
virtual Bool_tTObject::InheritsFrom(const char* classname) const
virtual Bool_tTObject::InheritsFrom(const TClass* cl) const
virtual voidTObject::Inspect() const
voidTObject::InvertBit(UInt_t f)
virtual TClass*IsA() const
virtual Bool_tTObject::IsEqual(const TObject* obj) const
virtual Bool_tTObject::IsFolder() const
Bool_tTObject::IsOnHeap() const
virtual Bool_tTObject::IsSortable() const
Bool_tTVirtualPacketizer::IsValid() const
Bool_tTObject::IsZombie() const
virtual voidTObject::ls(Option_t* option = "") const
voidTObject::MayNotUse(const char* method) const
virtual Bool_tTObject::Notify()
static voidTObject::operator delete(void* ptr)
static voidTObject::operator delete(void* ptr, void* vp)
static voidTObject::operator delete[](void* ptr)
static voidTObject::operator delete[](void* ptr, void* vp)
void*TObject::operator new(size_t sz)
void*TObject::operator new(size_t sz, void* vp)
void*TObject::operator new[](size_t sz)
void*TObject::operator new[](size_t sz, void* vp)
virtual voidTObject::Paint(Option_t* option = "")
virtual voidTObject::Pop()
virtual voidTObject::Print(Option_t* option = "") const
virtual Int_tTObject::Read(const char* name)
virtual voidTObject::RecursiveRemove(TObject* obj)
voidTObject::ResetBit(UInt_t f)
virtual voidTObject::SaveAs(const char* filename = "", Option_t* option = "") const
virtual voidTObject::SavePrimitive(basic_ostream<char,char_traits<char> >& out, Option_t* option = "")
voidTObject::SetBit(UInt_t f)
voidTObject::SetBit(UInt_t f, Bool_t set)
virtual voidTObject::SetDrawOption(Option_t* option = "")
static voidTObject::SetDtorOnly(void* obj)
virtual voidTVirtualPacketizer::SetInitTime()
static voidTObject::SetObjectStat(Bool_t stat)
virtual voidTObject::SetUniqueID(UInt_t uid)
virtual voidShowMembers(TMemberInspector& insp, char* parent)
virtual voidTVirtualPacketizer::StopProcess(Bool_t abort)
virtual voidStreamer(TBuffer& b)
voidStreamerNVirtual(TBuffer& b)
virtual voidTObject::SysError(const char* method, const char* msgfmt) const
Bool_tTObject::TestBit(UInt_t f) const
Int_tTObject::TestBits(UInt_t f) const
virtual voidTObject::UseCurrentStyle()
virtual voidTObject::Warning(const char* method, const char* msgfmt) const
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const
virtual voidTObject::DoError(int level, const char* location, const char* fmt, va_list va) const
Long64_tTVirtualPacketizer::GetEntries(Bool_t tree, TDSetElement* e)
TPacketizer(const TPacketizer&)
TPacketizer::TFileStat*GetNextUnAlloc(TPacketizer::TFileNode* node = 0)
voidoperator=(const TPacketizer&)
voidRemoveActive(TPacketizer::TFileStat* file)
voidValidateFiles(TDSet* dset, TList* slaves)

Data Members

enum TVirtualPacketizer::EUseEstOpt { kEstOff
enum TVirtualPacketizer::EStatusBits { kIsInitializing
enum TObject::EStatusBits { kCanDelete
enum TObject::[unnamed] { kIsOnHeap
Bool_tTVirtualPacketizer::fStopTermination of Process() requested?
Bool_tTVirtualPacketizer::fValidConstructed properly?
TList*fActivenodes with unfinished files
TList*fFileNodesnodes with files
Int_tfMaxPerfIdxmaximum of our slaves' performance index
Int_tfMaxSlaveCntmaximum number of slaves per filenode
Int_tfPacketAsAFractionused to calculate the packet size
Long64_tfPacketSizeglobal base packet size
TList*fPacketsall processed packets
TMap*fSlaveStatsslave status, keyed by correspondig TSlave
TList*fUnAllocatednodes with unallocated files

Class Charts

Inheritance Inherited Members Includes Libraries
Class Charts

Function documentation

TPacketizer(TDSet* dset, TList* slaves, Long64_t first, Long64_t num, TList* input)
void RemoveUnAllocNode(TPacketizer::TFileNode* )
 Remove unallocated node.
void RemoveActive(TPacketizer::TFileStat* file)
 Remove file from the list of actives.
void RemoveActiveNode(TPacketizer::TFileNode* )
 Remove node from the list of actives.
void Reset()
 Reset the internal datastructure for packet distribution.
void ValidateFiles(TDSet* dset, TList* slaves)
 Check existence of file/dir/tree an get number of entries.
 Assumes the files have been setup.
Long64_t GetEntriesProcessed(TSlave* sl) const
 Get entries processed by the specified slave.
TDSetElement * GetNextPacket(TSlave* sl, TMessage* r)
 Get next packet
TPacketizer(const TPacketizer& )
 fPacketSize = fTotalEntries / (fPacketAsAFraction * nslaves)
 fPacketAsAFraction can be interpreted as follows:
 assuming all slaves have equal processing rate, packet size
 is (#events processed by 1 slave) / fPacketSizeAsAFraction.
 It can be set with PROOF_PacketAsAFraction in input list.
TPacketizer(const TPacketizer& )
void operator=(const TPacketizer& )
TFileNode * NextUnAllocNode()
TFileNode * NextActiveNode()
TFileStat * GetNextUnAlloc(TPacketizer::TFileNode* node = 0)
TFileStat * GetNextActive()

Author: Maarten Ballintijn 18/03/02
Last update: root/proofplayer:$Id: TPacketizer.h 20882 2007-11-19 11:31:26Z rdm $
Copyright (C) 1995-2002, Rene Brun and Fons Rademakers. *

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