Review of ITM achievements since its origins in

Review of ITM achievements. . . since its origins in 2004 presented by G. Falchetto Interim TF Leader Deputies: D. Coster, R. Coelho EFDA CSU Contact Person: D. Kalupin Acknowledgments to previous TF Leaders: A. Becoulet, P. Strand deputies: H. Wilson, M. Romanelli, L. -G. Eriksson ITM Generalname, Conference Meeting, data Garching, and Presenter September 2011 1

OUTLINE • ITM-TF history: – original aims and scope – evolution of structure and activity • Main global milestones and achievements • International context and collaborations • Implementation – Evolution of activity and resources • Chal. Ienges and issues • Conclusions ITM General Meeting, Garching, September 2011 2

Proposal of EU Task Force on ITM Proposal for a European Task Force on Integrated Tokamak Modelling in June 24 th, 2003 Aim coordinate the development of a coherent set of validated simulation tools Ø benchmark on existing tokamak experiments Ø provide a comprehensive simulation package for ITER plasmas. Remit develop the necessary standardized software tools for interfacing code modules and for accessing experimental data Medium term: support the development of ITER-relevant scenarios in current experiments Long term: provide a validated set of European modelling tools for ITER exploitation [EFDA(03)-21/4. 9. 2] ITM General Meeting, Garching, September 2011 3

ITM-TF timeline 2004 Expert Working Groups Preparatory Phase EURATOM general support Development Phase 2006 Infrastructure & Software Integration ITM server EFDA-CSU, Garching. ISIP 2008 EURATOM funding Task Agreements 2010 Deployment phase Code Platform, Data Coord. + 5 IM Projects ITER Scenario Modelling Working Group (ISM) EDRG AMNS (TFL coordination) ERCC GATEWAY ENEA/CRESCO EFDA Control activities HPC-FF FZJcoordination / IMP 1+2 GOTi. T ITM Review Goal Oriented Training in Theory Future implementation ? ITM General Meeting, Garching, September 2011 4

ITM actual schematic structure ITM General Meeting, Garching, September 2011 8

ITM TF activity evolution ITM General Meeting, Garching, September 2011 9

ITM-TF Achievements (1) ü Definition of a generic data-structure for both simulated and machine data [F. Imbeaux et al. , Comp. Phys. Commun. 181 (2010) 987] ü Delivery of a robust platform and software infrastructure (2009) ü Delivery and upgrade of Machine Descriptions and Data. Mappings from most existing tokamak devices ü Prototype Kepler workflows running on the Gateway or HPC-FF ü Demonstrated Kepler workflow for exploitation on existing devices: equilibrium reconstruction and MHD stability chain with time-dependent capability (C. Konz oral talk @EPS 2011) ü Substantial validation and use of ITM equilibrium reconstruction code (EQUAL) for production in experiments ITM General Meeting, Garching, September 2011 10

ITM-TF Achievements (2) ü Most ITM codes ported on the Gateway as stand-alone modules or Kepler actors, tested in protoype workflows and integrated to the transport solver. Some entering validation phase. ü Significant progress in the development of the core transport code ETS, as well as its verification against leading existing transport codes ü Invited talk at “International Conference on the Numerical Simulation of Plasmas” [Plasma Science, IEEE Transactions on, 38(9): 2085 -2092, 09 2010] ü First-principle code benchmarking carried on using ITM infrastructure ü Invited talk at EPS 2008; G. Falchetto, B. Scott et al. PPCF 50, 124015 (2008) ü Strong ISM activity: ü benchmarking of ETS against CRONOS / ASTRA /JETTO ü interpretative and predictive integrated modelling of present experiments (JET, AUG, Tore Supra, DIII-D, JT-60 U …) ü predictive ITER baseline and hybrid scenario modelling, JT 60 -SA modelling ü Publications / posters @ EPS 2011 ITM General Meeting, Garching, September 2011 11

ITM-TF overall Milestones 2009 Extended set of platform tools forming a predictive core physics capacity 2011 Whole device modelling capability including comprehensive core-edge coupling and first-principle elements 2014 Complete modelling platform and IM infrastructure capable of whole device modelling and detailed physics studies employing a comprehensive set of validated physics models ITM –TF is on track with respect to 2011 milestone main thrust towards integration ITM General Meeting, Garching, September 2011 12

Where does EU-ITM stay compared to US / JAPAN ? • US and Japan IM approach focuses on coupling specific codes into workflows oriented to physics problems • US Fusion Simulation Project (FSP) aim: – create a full first-principles capability through an ever-widening range of pair-wise physics integration projects supported by a parallell framework development • EU-ITM approach is wider: flexible, modular, generic workflow, machine independent • EU-ITM is evidently ahead regarding the definition of a generic data-structure • US is significantly ahead with respect to the use of super computers • EU-ITM lacks computer science expertise in use of HPC ITM General Meeting, Garching, September 2011 13

Workflow orchestration layer: Kepler graphical system provides transparent representation of physics interactions and related data flows ITM-TF IM framework: layered and modular Coupling layer: communication through standardized data, CPO “Consistent Physical Objects”, transferred via UAL supporting all languages Modelling tools layer: physics modules unchanged; transparent integration via wrapping tool & automatic generation of Kepler actor ITM General Meeting, Garching, September 2011 14

OUTLINE • ITM-TF history: – original aims and scope – evolution of structure and activity • Main global milestones and achievements • International context and collaborations • Implementation – Evolution of activity and resources • Chal. Ienges and issues • Conclusions ITM General Meeting, Garching, September 2011 15

Effective ITM-TF activity / mobility Participants New PLs meeting Mainly IMPs WS Mainly CPP&DCP Stronger participation to larger Code Camps 117 this year Trainings included to GM M t. G 1 s Ki ck - of f Participation to General Meeting ~ const 75 this year ITM General Meeting, Garching, September 2011 Collaborative TF wide activity increasing (1 -1 missions < 10) 17

ITM-TF Manpower evolution members 240 206 195 Increase of PS, decrease # Tasks more focused activity improved efficiency ! Chronic manpower fragmentation only slightly improving average commitment from 0, 25 to 0, 29 ppy ITM General Meeting, Garching, September 2011 18

2011 Manpower Breakdown per Association ITM General Meeting, Garching, September 2011 19

Manpower Breakdown per Project ITM General Meeting, Garching, September 2011 20

2011 Manpower commitment per Task 166 Task contributions: 54% of commitments still < 0. 2 ppy 13% > 0. 5 ppy ITM General Meeting, Garching, September 2011 21

Challenges and issues Resources • Central computer system / portal ü 2008 Gateway / 2009 HPC-FF after 2012 ? • ISIP Manpower - Right skills and availability ü Support Action 2010 -2011 (core programming team 100%) To be renewed: 2012 Call ü EUFORIA ! Need Computer Science experts : workflow management and optimisation / massive parallelization HLST? • Manpower criticality need more experts / users from Associations Strenghten Association involvement: Implementing Agreement? • Fragmentation of manpower - calendar clashes ü 2010 Code Camps • Getting new participants involved ü Trainings ITM General Meeting, Garching, September 2011 22

Conclusions EU ITM-TF significantly ahead in the international IM context with respect to the definition of a generic ontology Ø main achievement : datastructure for physical data and tokamak systems The ITM-TF progressed coherently with the strengthening of its capabilities, since the Gateway facility advent Ø delivery of a robust platform and software infrastructure Ø demonstration and exploitation of prototype workflows ITM-TF is on track with respect to the 2011 milestone: providing "whole device modelling capability including comprehensive core-edge coupling and first principles elements" ! Resources are still an issue: ü Crucial role of full-time Core Programming Team, for support and maintenance of the infrastructure. ü Regular “Code Camps” ensure efficient and fast progress, compensating manpower fragmentation and unavailability ITM General Meeting, Garching, September 2011 24

ITM-TF outcomes in a glance • built a community ~ 200 people • built an ontology CPOs • • built a robust and modular infrastructure large number of physics modules ready first workflows solving “real” problems demonstrated that this sort of distributed approach can work NOW need users & Computer Science experts ITM General Meeting, Garching, September 2011 25