accelerator complex controls renovation, lhc excluded purpose and scope m.vanden eynden on behalf of...

Accelerator Complex Controls Renovation, LHC Excluded

Purpose and Scope

M.Vanden Eynden on behalf of the AB/CO Group

December 3rd, 2008 M.Vanden Eynden - Accelerator Complex Controls Renovation Workshop 2

Agenda• Purpose

– Outline of the main technical and organizational motivations

• Scope– Outline of the technical work packages

• Summary


Agenda• Purpose


• Scope– Outline of the technical work packages

• Summary


Purpose• Organizational

– The benefits of the co-operative LHC model– Time to end the PS Complex legacy situation– AD, CTF, REX ISOLDE

• Technical– Critical Front-end Hardware and Software situation– Application Software rationalisation



– The benefits of the co-operative LHC model– Time to end the PS Complex legacy situation– AD, CTF, REX ISOLDE



Purpose - Organizational• The benefits of the co-operative LHC model

– The organizational model used for the construction of the LHC control system is recognized as a solid basis in terms of:

• Budget, Planning, Field coordination, Responsibilities– The control system was built on the basis of agreements (CO3)

and better balanced sharing of responsibilities between the EQ.Groups and CO

• CO provides core controls hardware reference platforms and modules• CO provides core software frameworks (FESA)• Eq.Groups develop their systems with these building blocks• Eq.Groups have a first-line responsibility for their Front-ends, in

particular for the software and its evolution– The exploitation responsibilities are clear, decisions and evolutions

are made in common (CO3)


Purpose - Organizational• Time to end the PS complex legacy situation

– The PS Complex (1/2)

• The PS Complex control system was designed and operated under the responsibility of the “PS-CO” group

• The emergence of LHC brought another magnitude of controls complexity and diversity, making the PS-CO approach not applicable in the future

• The remaining number of PS-CO engineers in a position to fix or improve the current control system runs under the critical mass (loss of competence)

• Responsibilities for a number of systems is unclear


Purpose - Organizational• Time to end the PS complex legacy situation

– The PS Complex (2/2)

• Recent renovation of the application software layer highlighted severe shortcomings at the front-end level

• CO presents today a vision for renovation but a global strategy approved by all parties (EQ.Groups, OP, CO) is mandatory

• Current Budget evaluations for the PS controls infrastructure is difficult without this strategy

Using the LHC co-operative model would improve the situation


Purpose - Organizational• AD, CTF, REX ISOLDE

• Lots of unsupported technical solutions (external collaborations)• Partially renovated but with PS-CO legacy solutions

– same technical problems problems as for the PS complex– Same “centric” role of CO, as opposed to the LHC model

• Evolution on a “day-by-day” basis, making hardware procurement, software support and responsibilities unclear

• Declared as “lower priority” but in reality require a very high support effort from AB-CO

• The future evolution is only possible through a close collaboration and involvement of the EQ.Groups and CO

Here again, using the LHC co-operative model would improve the situation



– The benefits of the co-operative LHC model– Time to end the PS Complex legacy situation– The case of AD, CTF, REX ISOLDE



Purpose - Technical• Critical Front-end Hardware and Software Situation

– Most of the low level control system Hardware infrastructure, in particular the front-end VMEBus processors and crates are running out of date:

• No commercial support, no possible evolutions, performance problems– Already some major impact on operations– Severe difficulties to deploy the LHC front-end software solutions (FESA)– Impossible to evolve the application software layer without a consistent

renovation plan for the front-end part– New front-end platforms, including more “cost-effective” ones, are

proposed by CO– Large Contracts have been prepared, approved by CERN Finance

Committee and signed with European manufacturers (IT 3527 and IT 3557)– Orders for VMEBus processors should be placed in the coming weeks, as

no new installations nor upgrades are possible anymore (only LHC spares available)

More Details during the talk on « Front-End Hardware » by N.de Metz-Noblat


Purpose - Technical• Critical Front-end Hardware and Software Situation

– Most of the Front-End software (GM classes) is under “corrective maintenance” support ONLY by AB-CO

– GM is abandoned and FESA has emerged, thanks to a very close collaboration with the Eq.Groups, as the unique RT software framework that will be supported

– Full re-engineering of about 125 GM classes is out of reach by AB-CO only– A clear evaluation of the situation will be presented during this workshop

More Details during the talk on « Front-End Software » by C.H.Sicard


Purpose - Technical• Application Software Rationalisation

– Reduce duplication of efforts• Homogenise solutions accross Accelerators• Reduce number of specific applications

– Reduce maintenance cost• Suppress Legacy PS applications

– Improve performance• Tackle performance, scalability and reliability problems experienced on PS

complex

More Details during the talk on « InCA » by S.Deghaye


Agenda• Purpose


• Scope– Outline of the work packages

• Summary


Scope - Work Packages

DOMAIN ResponsibilityMaterial Budget

Human Resources

Front-End Hardware Platforms and Form Factors

AB/CO +++ +

Generic Front-End Hardware Modules

AB/CO ++ ++

FESA Framework AB/CO N/A ++

Front-End software (+ specific Hardware)

ATB, BI, BT, CO, PO, RF,…

+ +++

InCAAB/COAB/OP

N/A ++

Specific High Level Applications AB/OP N/A ++


Scope - Work Packages• The aim of this workshop is to provide, for

each work package:

– General Description– Proposed Time Table (synchronized)– Material Budget– Resources


Summary• A solid co-operative model for developing Accelerator

controls has been applied with success to the LHC and should be generalized to all machines

• The control system of the PS complex and other machines (AD, REX ISOLDE, CTF) requires urgent renovation from the technical perspective, as well as from the organizational point of view

• As it will take several years of efforts, a decision is needed rather soon

• Orders for VMEBus processors are urgent (IT-3527)• AB-CO proposes a vision with estimates but a global

strategy and organization must be defined with the support of the management

accelerator complex controls renovation, lhc excluded purpose and scope m.vanden eynden on behalf of...

Documents

ps complex control system

ps controls infrastructure

ps complex legacy situation

organizational model

recent renovation

remaining number of

lhc control system

unclear slide