EPiGRAM

Exascale Programming Models

Coordinatore	KUNGLIGA TEKNISKA HOEGSKOLAN    more  Organization address address: Teknikringen 14 city: Stockholm postcode: SE-100 44 contact info Titolo: Mrs. Nome: Anette Cognome: Arling Email: send email Telefono: 4687906923 Fax: +46 8 245 435
Nazionalità Coordinatore	Sweden [SE]
Totale costo	3˙051˙679 €
EC contributo	2˙197˙000 €
Programma	FP7-ICT Specific Programme "Cooperation": Information and communication technologies
Code Call	FP7-ICT-2013-10
Funding Scheme	CP
Anno di inizio	2013
Periodo (anno-mese-giorno)	2013-11-01   -   2016-10-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	KUNGLIGA TEKNISKA HOEGSKOLAN  Organization address address: Teknikringen 14 city: Stockholm postcode: SE-100 44 contact info Titolo: Mrs. Nome: Anette Cognome: Arling Email: send email Telefono: 4687906923 Fax: +46 8 245 435	SE (Stockholm)	coordinator	0.00
2	CRAY UK LIMITED  Organization address address: BREWERY COURT HIGH STREET THEALE city: READING postcode: RG7 5AH contact info Titolo: Dr. Nome: Duncan Cognome: Roweth Email: send email Telefono: +44 118 9033170 Fax: +44 118 9033208	UK (READING)	participant	0.00
3	FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V  Organization address address: Hansastrasse city: MUNCHEN postcode: 80686 contact info Titolo: Ms. Nome: Andrea Cognome: Zeumann Email: send email Telefono: +49 89 1205 2723 Fax: +49 89 1205 7534	DE (MUNCHEN)	participant	0.00
4	TECHNISCHE UNIVERSITAET WIEN  Organization address address: KARLSPLATZ city: WIEN postcode: 1040 contact info Titolo: Mrs. Nome: Margret Cognome: Steinbuch Email: send email Telefono: 4315880000000 Fax: 4315880000000	AT (WIEN)	participant	0.00
5	THE UNIVERSITY OF EDINBURGH  Organization address address: OLD COLLEGE, SOUTH BRIDGE city: EDINBURGH postcode: EH8 9YL contact info Titolo: Ms. Nome: Angela Cognome: Noble Email: send email Telefono: +44 131 650 9024	UK (EDINBURGH)	participant	0.00

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 Obiettivo del progetto (Objective)

Exascale computing power will likely be reached in the next decade. While the precise system architectures are still evolving, one can safely assume that they will be largely based on deep hierarchies of multicore CPUs with similarly-deep memory hierarchies, potentially also supported by accelerators. New and disruptive programming models are needed to allow applications to run efficiently at large scale on these platforms. The Message Passing Interface (MPI) has emerged as the de-facto standard for parallel programming on current petascale machines; but Partitioned Global Address Space (PGAS) languages and libraries are increasingly being considered as alternatives or complements to MPI. However, both approaches have severe problems that will prevent them reaching exascale performance.nnThe aim of this proposal is to prepare Message Passing (MP) and PGAS programming models for exascale systems by fundamentally addressing their main current limitations. We will introduce new disruptive concepts to fill the technological gap between the petascale and exascale era in two ways:nn• First, innovative algorithms will be used in both MP and PGAS, specifically to provide fast collective communication in both MP and PGAS, to decrease the memory consumption in MP, to enable fast synchronization in PGAS, to provide fault tolerance mechanisms in PGAS, and potential strategies for fault tolerance in MP.n• Second, we will combine the best features of MP and PGAS by developing an MP interface using a PGAS library as communication substrate.nnThe concepts developed will be tested and guided by two applications in the engineering and space weather domains chosen from the suite of codes in current EC exascale projects. By providing prototype implementations for both MP and PGAS concepts we will contribute significantly to advancement in programming models and interfaces for ultra-scale computing systems, and provide stimuli for European research in this vital area.