GAUDI User Guide

Index

A

AIDA, 171

Algorithm, 14

Base class, 15, 43

branches, 50

Concrete, 43, 46

Constructor, 45, 47

Declaring properties, 45

Execution, 37, 47

Filters, 50

Finalisation, 38, 49

Initialisation, 37, 45, 47, 49

Nested, 49

sequences, 50

Setting properties, 45

Algorithms

EventCounter, 51, 113

Prescaler, 51

Sequencer, 50

Application Manager, 15

instantiation, 33

ApplicationMgr. See Application Manager

Architecture, 13

Associators, 145

Example, 147

B

Branches, 50

C

Casting

of DataObjects, 55

Changes

in the new release, 25

incompatible in this release, 26

Checklist

for implementing algorithms, 49

Class

identifier (CLID), 60

CLHEP, 171

Units, 8

CMTPATH

to get development version of packages, 29

Component, 13

Library, 20

ContainedObject, 57

Conventions, 8

Coding, 9

Naming, 10

of MC truth classes, 67

Units, 8

used in this this document, 10

Converters, 151

SICB Converters, 163

D

Data Model

LHCb, 53

Data Store, 53

Detector data, 71

Event data, 66

finding objects in, 55, 61

Histograms, 95

registering objects into, 56

DataObject, 15, 53, 55, 56

ownership, 56

E

Editor

of XML detector descripton files, 92

endreq, MsgStream manipulator, 121

Event Collections, 104

Filling, 106

Reading Events with, 106

Writing, 105

Event Data Model, 65

EventCounter algorithm. See Algorithms

Example Application

Main program, 32

Trace of execution, 33

Examples

Associator, 147

distributed with Gaudi, 42

HistoAlgorithm, 36

Simple Analysis, 39

Exception

when casting, 55

F

Factory

for a concrete algorithm, 45

Filters, 50

FORTRAN, 14

linking with, 21

G

GaudiLab, 174

GEANT4

units, 8

Glossary

Event Data, 65

H

HBOOK

Constraints on histograms, 97

For histogram persistency, 98

Limitations on N-tuples, 100, 104

Histograms

HTL, 171

Naming convention for, 10

Persistency service, 98

HTL, 171

I

Inheritance, 43

Installation

of the framework, 23

Interactive Analysis

of N-tuples, 108

Interface, 13

and multiple inheritance, 17

Identifier, 17

In C++, 17

Interfaces

AIDA, 171

IAlgorithm, 16, 43, 45, 47

IAlgTool, 140

IAppMgrUI, 33

IAssociator, 145

IAuditor, 129

IDataManager, 15

IDataProviderSvc, 15, 53, 54, 99

IDetectorElement, 72

IGeometryInfo, 72

IHistogramSvc, 16, 53

IIncidentListener, 133

ILVolume, 74

IMessageSvc, 16

INTupleSvc, 53, 99

INtupleSvc, 16

IParticlePropertySvc, 122

IProperty, 16, 33, 43

IPVolume, 75

ISolid, 75

ISvcLocator, 45

IToolSvc, 143

IValidity, 72, 74

IXmlSvc, 91

L

Libraries

Building, 21

Component, 20

containing FORTRAN code, 21

Linker, 20

Linux, 27

M

Magnetic Field. See Services

Message service, 119

Monitoring

of algorithm calls, with the Auditor service, 128

statistical, using the Chrono&stat service, 126

Monte Carlo truth

association to, 67

navigation using Associators, 145

MsgStream, 38

N

NAG C, 172

N-tuples, 99

Booking and declaring tags, 101

filling, 101

Interactive Analysis of, 108

Limitations imposed by HBOOK, 100, 104

persistency, 103

reading, 102

Service, 99

O

Object Container, 56

and STL, 57

ObjectList, 57

ObjectVector, 57

ODBC

For N-Tuple analysis, 109

P

Package, 17

Guidelines for sub-detectors, 19

Internal layout, 19

structure of LHCb software, 17

PAW

for N-Tuple analysis, 108

Persistency

of histograms, 98

of N-tuples, 103

Persistent store

saving data to, 62

Pile-up, 167

Platform, 27

Available platforms, 27

Prescaler algorithm. See Algorithms

Problems

Reporting, 10

Profiling

of execution time, using the Chrono&Stat service, 125

of execution time, with the Auditor service, 128

of memory usage, with the Auditor service, 128

R

Random numbers

generating, 130

Service, 130

Release notes, 23

Reporting problems, 10

Retrieval, 143

ROOT, 172

for histogram persistency, 98

for N-Tuple analysis, 108

S

Saving data, 62

Sequencer algorithm. See Algorithms

Sequences, 50

Services, 15

Auditor Service, 128

Chrono&Stat service, 125

Histogram Persistency Services, 98

Incident service, 133

Job Options service, 113

Magnetic Field Service, 164

Message Service, 119

N-tuples Service, 99

Particle Properties Service, 122

Random numbers service, 130

requesting and accessing, 111

ToolSvc, 137, 142

vs. Tools, 137

SmartDataLocator, 61

SmartDataPtr, 61

SmartRef, 61

StatusCode, 47

Sub-detectors

Software packaging guidelines, 19

T

Tools, 137

Associators, 145

provided in Gaudi, 144

vs. Services, 137

ToolSvc, see Services

U

Units, 8

Convention, 8

V

Visualization, 173

GaudiLab, 174

W

Windows NT, 27

X

XML

converter, 89

detector description, 77

Editor, 92

introduction to, 76