LHC high level core1 LHC Era Core Control Application Software Mike Lamont CERN For the LSA project...

LHC high level core 1

LHC Era Core Control LHC Era Core Control Application SoftwareApplication Software

Mike Lamont CERNMike Lamont CERN

For the LSA project teamFor the LSA project team

1313thth October 2005 October 2005


EVOLUTIONEVOLUTION

• REPLICATORSREPLICATORS

• MUTATIONMUTATION

• COMPETIVE ENVIRONMENTCOMPETIVE ENVIRONMENT


Given 3 Billion YearsGiven 3 Billion Years

LHC MACHINE

GENERAL PURPOSE

NETWORK

OPERATORCONSOLES

OPERATORCONSOLES

FIXEDDISPLAYS

CE

RN

G

IGA

BIT

E

TH

ER

NE

T

TE

CH

NIC

AL

NE

TW

OR

K

FILE SERVERS APPLICATION SERVERSSCADA SERVERS

RT Lynx/OSVME FRONT ENDS

WORLDFIPFront Ends PLCs

ACTUATORS AND SENSORSCRYOGENICS, VACUUM, ETCÉ

QUENCH PROTECTION AGENTS,POWER CONVERTERS FUNCTIONSGENERATORS, CRYO TEMPERATURE SENSORSÉ

BEAM POSITION MONITORS,BEAM LOSS MONITORS,BEAM INTERLOCKS,RF SYSTEMS, ETCÉ

Wo

rldF

IPS

EG

ME

NT

(1,

2.5

M

Bits

/se

c)

PR

OF

IBU

S

FIP

/IO

TCP/IP communication services

OP

TIC

AL

FIB

ER

S



TIMING GENERATION

T

TT

T

TT

T T T T

DIR

EC

T I

/O

PR

ES

EN

TAT

ION

TIE

R M

IDD

LE

TIE

R

RE

SO

UR

CE

TIE

R

Can come up with this

But probably not this


AlternativeAlternative

INTELLIGENT DESIGN

Might come in handy here

(implies existence of intelligent designer)


CULTURAL EVOLUTIONCULTURAL EVOLUTION

MEMEReplicator - conveys the idea of a unit of

cultural transmission

We have run a 27 km accelerator before…

Good ideas live on

(but then so do some bad ones)


ChallengeChallenge• We have to whizz 2 beams of We have to whizz 2 beams of

100,000,000,000 100,000,000,000 high energy protonshigh energy protons in opposite directions around a 27 km in opposite directions around a 27 km ringring

• Through two Through two very smallvery small, , very coldvery cold, , very dark holesvery dark holes

• Squeeze ‘em down to 16 microns, get Squeeze ‘em down to 16 microns, get them to collide and keep them them to collide and keep them colliding for something like 10 hourscolliding for something like 10 hours

• While keeping our While keeping our losseslosses down to down to ridiculously low levelsridiculously low levels

AND WE GOT A DO IT WITH OUR CONTROL SYSTEM


The controls’ challengeThe controls’ challenge

• EQUIPMENT EQUIPMENT Collimators/TDI/TCDQ etc. Beam Dump Power converters, Kickers RF, TFB, LFB Spectrometers & compensation

• INSTRUMENTATIONINSTRUMENTATION Distributed systems:

BLMs, BPMs, Standalone:

BCT, BTV, AGM, BIPM, BWS, Schottky.. Tune, Chromaticity, Coupling Luminosity monitors Radiation Monitors

• MAGNETS – RMS, errorsMAGNETS – RMS, errors• MACHINE PROTECTIONMACHINE PROTECTION• VACUUM, CRYOGENICS, QPS, EEVACUUM, CRYOGENICS, QPS, EE• EXPERIMENTSEXPERIMENTS

Settings, functions, Settings, functions, monitoring, display, monitoring, display,

post mortem, control, post mortem, control, acquisition, acquisition,

concentration, concentration, archiving, alarms, archiving, alarms,

interlocksinterlocks

Driving the machine through the cycleMagnet errors, crossing Magnet errors, crossing

angles, snapback,angles, snapback, ramping, ramping, squeezing, colliding, orbit, squeezing, colliding, orbit,

parameter control, parameter control, optimisation etc. etc.optimisation etc. etc.

HIGHLY DESTRUCTIVE BEAMHIGHLY DESTRUCTIVE BEAM

TIGHT TOLERANCESTIGHT TOLERANCES


LSA CoreLSA Core

• AnalysisAnalysis of of the requirements of the requirements of accelerator operationsaccelerator operations

• Set of software modules for Set of software modules for accelerator controlsaccelerator controls

• Reference architecture Reference architecture Organization (See Lionel Mestre’s

talk on Tuesday)


Strategy MemesStrategy Memes

• Understanding what you need to do can be usefulUnderstanding what you need to do can be useful [Analysis, LEP]

• Pragmatic (rather than ideological)Pragmatic (rather than ideological)

• SimplicitySimplicity

• Implement once & Iterate Implement once & Iterate

• ModularModular Factor out commonality

• Share & Reuse & TestShare & Reuse & Test TI8, SPS, LEIR, LHC hardware commissioning


Data MemesData Memes

• Controls is data driven and data is Controls is data driven and data is the masterthe master

• Data is Key, Data StaysData is Key, Data Stays Fast access Well organised Good data model


LSA Data modelLSA Data model

• Well designedWell designed It’s evolved!

• Same for TL, SPS, LEIR and LHCSame for TL, SPS, LEIR and LHC Optics Parameter Model Settings Configuration Etc.


LSA Core - ModulesLSA Core - Modules

• OpticsOptics Characteristics of the machine, layout, twiss

• Settings ManagementSettings Management Functions or values for all parameters (physics to hardware)

• Settings GenerationSettings Generation Generation of the functions based on the optics

• TrimTrim Coherent modification of functions, revert

• Hardware ExploitationHardware Exploitation Equipment Control, Measurements

• Operational ExploitationOperational Exploitation Sequencing, Super Cycle changes


E.g. Settings and TrimE.g. Settings and Trim

• LSA Core provides LSA Core provides complete Settings complete Settings Management and Management and Trim facilityTrim facility

• Defines parameters Defines parameters and their and their relationshipsrelationships

• Defines setting per Defines setting per context (Cycle)context (Cycle)

LSS4_EXT_BUMP/KNOB

MPLH.41994/K MPSH.42198/K

MPLH.41994/I MPSH.42198/I

MPLH4199/IREF MPSH4219/IREF


Orbit SteeringOrbit Steering

Using OPTICS, TRIM, DRIVE, ACQUIRE modules


Tool MemesTool Memes

• Don’t re-invent Don’t re-invent

• But the tool has to be appropriate to your requirementsBut the tool has to be appropriate to your requirements Tools have to be maintained Loss productivity if they get in your way

fancy features that aren’t required Using a Ferrari as wheel barrow

Can be great if they don’t e.g. Spring Can be too heavy for the job (EJBs)

But can turn out to be indispensable Relational Database (Oracle)

Understand your tools

(and maybe read the documentation)

Lionel’s Mestre talk


Database MemeDatabase Meme

• DatabasesDatabases It’s a database not a data dump Don’t use generic data models Design to perform; don’t tune to perform Keep It Simple Use supplied functionality – e.g. integrity Understand your tool

See Tom Kyte


Interface meme Interface meme

• JAPC:JAPC: One API for all equipment access See Vito’s talk - coming next

• Use Case based interfaceUse Case based interface To match specific application requirements

Generic doesn’t always equal flexibleGeneric doesn’t always equal flexible


Only solve the same problem onceOnly solve the same problem once

• Fixed DisplaysFixed Displays• LoggingLogging• SDDSSDDS• Post-MortemPost-Mortem• AlarmsAlarms

• Common ComponentsCommon Components Dataviewer Beans


Steal MemeSteal Meme

• If someone has already solved the problemIf someone has already solved the problem Make sure you’ve got the source code Say Thank You

Intelligent Laziness


SDDSSDDS

THANK YOU ARGONNE!


ConclusionsConclusions• LSA CoreLSA Core

Analysis – good data model - commonality Modular Pragmatic Sound architecture Appropriate use of available tools, reuse where possible

• Complex problem space – no one answerComplex problem space – no one answer• Open to technological evolutionOpen to technological evolution• User needs are paramount, not an ideologyUser needs are paramount, not an ideology• Remain close to your users -Remain close to your users - collaborate collaborate• Remember - some people are religiousRemember - some people are religious

LET’S EVOLVE!


If all else failsIf all else fails

Study the problem, understand the technology, hire an

experienced architect, and choose to build systems based on appropriate technologies.


Thanks toThanks to

• Lionel MestreLionel Mestre

• Greg KrukGreg Kruk

• Delphine JacquetDelphine Jacquet

• Eugenia HatziangeliEugenia Hatziangeli

• Francois ChevrierFrancois Chevrier

• Markus AlbertMarkus Albert

• Lasse NormannLasse Normann

• Guy CrockfordGuy Crockford

• Vito BaggioliniVito Baggiolini

• Anthony ReyAnthony Rey

• Jorg WenningerJorg Wenninger

The Team Meme

LHC high level core1 LHC Era Core Control Application Software Mike Lamont CERN For the LSA project...

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