fusion application porting within egee - iii

EGEE-III INFSO-RI-222667

Enabling Grids for E-sciencE

www.eu-egee.org

EGEE and gLite are registered trademarks

Fusion Application porting within EGEE - III

F. Castejón (CIEMAT)

Fusion Cluster Leader

[email protected]

Egee08, Istambul (Turkey)

22 - 26 September 2008

NA4 – F. Castejón – EGEE08 Meeting – 11-14 Feb 20088


EGEE-III INFSO-RI-222667 2

Contents

• Introduction: Serial Fusion Problems.

• EGEE Experience:

– Fusion VO.

– Running Applications & Results.

• New Applications and upgrades.

• Euforia Applications.

• Final Remarks




Contents



– Fusion VO.




• Final Remarks




Grids and distributed problems

• Monte Carlo codes (Langevin Equation):– Plasma-wall interaction; neutral particle orbits.

– Kinetic transport: Particle orbits in toks. and stell.

– …

• Parameter Variation:– Stellarator Optimization

– Neoclassical Transport estimates (DKES).

– Simulation of Heating by Microwaves: Massive Ray Tracing.

– …

•Two main strategies: – Rendering all the simulated data.

– Choosing the best among all of them by a genetic algorithm.




Contents



– Fusion VO.




• Final Remarks




Fusion VO Working

• 14 Partners ~ 4500 CPUs

http://grid.bifi.unizar.es/egee/fusion-vo/

http://www-fusion.ciemat.es/collaboration/egee/

[email protected]

Fusion:

Reinforce fusion VO, in order to be abgain

the most demanding after HEP and Biomed.

[email protected]

Fusion:

Reinforce fusion VO, in order to be abgain

the most demanding after HEP and Biomed.

~ 45 Tflops




Contents



– Fusion VO.




• Final Remarks




Running applications (I)

• Ion Kinetic Transport (ISDEP)

Following independent particle orbits

in a fixed plasma background.

(106 orbits=jobs)x10 - 20 min

Based on gLite scripts.

Random parameters for every orbit.

No matter if some jobs are missed

• Massive Ray Tracing (MaRaTra).

Simulating microwave beams by rays (105 rays=jobs) x 40 min

No jobs can be lost. Gridway is used to distribute the jobs.




Running applications (II)

• Stellarator Optimization.

Choosing the best configuration

Using a genetic algorithm. GIF Portal

(105 configurations=jobs) x 40 min

• Optimization of Reflectometry

system for ITER.




Contents



– Fusion VO.




• Final Remarks




Running applications (II)

• Helena: Magnetohidrodinamics

2D linear code.

• FAFNER2: MC code for NBI Heating.

Details in P33, by M. Rodriguez-Pascual)

0

50

100

150

200

0,5 1 1,5 2 2,5 3

Charge Exchange (%)

Pabs (kW)

Orbit Losses (%)

enlin (1019

m-3

)




New applications & Improvement (I)

• Ion Kinetic Transport:

Divertor Studies (3D Map of Flux)

• ISDEP:– Self consistent Plasma Profiles

– Tokamak Geometry. (ASDEX, ITER)

– Ion Heating (ICRH).




New applications & Improvement (II)

• DKES (Drift Kinetic Equation Solver)

• Linear Turbulence: TURBO

€

D js =

4

πDToks D*

s ϑ *,E r,v( )∫ v

v th

⎛

⎝ ⎜

⎞

⎠ ⎟

3+2 j

exp −v

v th

⎛

⎝ ⎜

⎞

⎠ ⎟

2 ⎛

⎝ ⎜ ⎜

⎞

⎠ ⎟ ⎟dv

€

D js n,T,E r( )

€

D*s = D*

s ϑ *,E r,v( )




Contents



– Fusion VO.




• Final Remarks




EUFORIA: EU fusion for ITER Applications

• GEM: Linear Turbulence Gyrofluid code (MPI).

• BIT1: Divertor code.

• EIRENE for tokamaks & Stellarators. Following a large number of neutral particles in a plasmaThe real Geometry of the vesel needed. Independent orbits of the neutrals. Iteration with a transport code needed.




Contents



– Fusion VO.




• Final Remarks




Final Remarks

• Fusion VO in EGEE used for scientific production in Fusion Research.

• New Relevant scientific results obtained with grid capabilities.

• Complex Workflows are being established. Kepler workflow orchestration is a promising tool.

• Euforia: Oportunity for bringing more partners of Fusion Community to Grid Computing.

• Coordination EGEE-EUFORIA guaranteed.• Workflows between Grid-HPC based on Kepler

workflow orchestration is the final goal of EUFORIA.

• APPLICATION SELECTION PROCESS NEEDED.

fusion application porting within egee - iii

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