LISA Data Processing Center meeting

20 avr. 2017, 13:00 → 21 avr. 2017, 13:25 Europe/Paris

Amphi Turing (Batiment Sophie Germain)

Antoine Petiteau (APC - Université Paris-Diderot)

France is anticipated to have, within the LISA Consortium, the responsibility of the Data Processing Center (DPC) and primary Data Computing Center (DCC).

As expressed in the LISA proposal to the ESA call, the task of the unique DPC is to receive the L1 data set ("calibrated" data) and to deliver to the Consortium and ESA L2 and L3 data (catalogue of observed sources and of their parameters, ...). Final long-term archiving will be done by ESA.

Together with CNES, the French component of the consortium has studied the feasibility of the DPC and has suggested a strategy that could be followed taking advantage of the emergent on-demand computing technologies. One of the features of this strategy is that the hardware component of the DPC will be able to capitalize on arbitrary and flexible participation of other national centers, at whatever levels is judged appropriate. This requires computing power and storage provided by the multiple Data Computing Centres (DCC). Another key aspect of the present work supported by the DPC and other laboratories is to develop the framework (software package) for LISA production data analysis and simulation. The support of the DPC to the simulation is required very soon, since the idea is to have the first version of a consortium simulator during the LISA Phase A.

As a follow-up to the LISA proposal for the mission, we feel that it is an appropriate time to have a meeting that would:

•  Call together all the countries/laboratories that share an interest in participating to the activities related to the DPC (DCC, DPC software, ),
•  Explain the present strategy and how the participating countries could contribute both on the software and hardware level.
•  Discuss the organization of the DPC through the various national contribution.

Transparents slides.pdf

jeu. 20 avril

13:30 → 14:00 LISA DPC overview

Orateur: M. Antoine Petiteau (APC - Université Paris-Diderot)

Transparents France_Petiteau_DPCOverview.pdf

14:00 → 14:30 CNES phase 0 study

Orateur: Mme Laurence Chaoul (CNES)

Transparents France_Chaoul_CNESPhase0.pdf

14:30 → 15:00 Proto DPC status and perspectives

Orateur: Mlle Maude LE JEUNE (APC)

Transparents France_LeJeune_ProtoDPC.pdf

15:00 → 15:30 Pause

15:30 → 18:00 Call for contribution: Partner's interest and expertise

15:30 Germany's contribution to LISA DPC

Orateur: Dr Martin Hewitson (Institut für Gravitationsphysik der Leibniz Universität)

Transparents AEI_DPC.pdf

15:55 Italy's contribution to LISA DPC

Orateur: Prof. Bill Weber (Dipartimento di Fisica, Università di Trento)

Transparents DPC_20170420_italy_weber.pdf

16:20 Spain's contribution to LISA DPC

Orateurs: M. Lluís Gesa (IEEC-CSIC), M. Victor Martin Hernandez (ICE)

Transparents DPC_Spain.pdf

ven. 21 avril

09:00 → 11:05 Call for contribution: Partner's interest and expertise

09:00 Portugal's contribution to LISA DPC

Orateur: Dr Alberto Dr. KRONE-MARTINS (Universidade de Lisboa, CENTRA/SIM)

Transparents Portugal_KroneMartin.pdf

09:25 Sweden's contribution to LISA DPC

I will present the Swedish interests in the LISA DPC. Our interests split into two parts: * Calculations of the properties of likely sources and gravitational-wave templates (Rosswog, Church) * Algorithms for reconstructing spacecraft orbits and attitude and dealing with e.g. micrometeorite hits using experience from GAIA (Hobbs)

Orateur: Dr Ross Church (Lund Observatory)

Transparents Sweden_ChurchHobbs.pdf

09:50 Swiss contribution to LISA data processing

We present our plan for the swiss contribution to the data processing for LISA. We propose to join the expertise of the University of Zurich, the ETH Zurich and the University of Geneva. The University of Zurich and the ETH Zurich are involved in LISA and LISA Pathfinder hardware manufacturing and in the data processing for LISA Pathfinder. The University of Geneva has a long-lasting experience in the management of a data center for astrophysical research.

Orateurs: Dr Luigi Ferraioli (ETH Zurich), Dr Stephane Paltani (University of Geneva)

Transparents Swiss_FerraioliPaltani.pdf

10:15 UK's contribution to LISA DPC

Orateur: Dr Jonathan Gair (Institute of Astronomy, University of Cambridge)

Transparents UK_Gair.pdf

10:40 US's contribution to LISA DPC

Orateur: Dr David Shoemaker (MIT Cambridge)

Transparents US_Shoemaker.pdf

11:05 → 11:20 Pause

11:20 → 12:05 Management proposal (discussion)

12:05 → 12:40 Schedule and actions