Jste zde

GASPI - Global Address Space Programming Interface

Termín: 
Čt, 02.03.2017 9:30 - Pá, 03.03.2017 16:30
Uzávěrka registrace: 
Út, 28.02.2017 23:30
Místo: 
VŠB - Technical University Ostrava, IT4Innovations building, room 207
Lektor: 
Christian Simmendinger (T-Systems Solutions for Research GmbH)
Úroveň: 
basic-intermediate
Jazyk: 
English

Annotation

In this tutorial we present an asynchronous data flow programming model for Partitioned Global Address Spaces (PGAS) as an alternative to the programming model of MPI. GASPI, which stands for Global Address Space Programming Interface, is a partitioned global address space API. The GASPI API is designed as a C/C++/Fortran library and focused on three key objectives: scalability, flexibility and fault tolerance. In order to achieve its much improved scaling behaviour GASPI aims at asynchronous dataflow with remote completion, rather than bulk-synchronous message exchanges. GASPI follows a single/multiple program multiple data (SPMD/MPMD) approach and offers a small, yet powerful API (see also http://www.gaspi.de and http://www.gpi-site.com).

GASPI is successfully used in academic and industrial simulation applications. The GASPI API works especially well for complex network topologies like the 7D enhanced hypercube of Salomon. (See e.g. https://github.com/PGAS-community-benchmarks/Pipelined-Transpose/wiki.)

Hands-on sessions (in C and Fortran) will allow users to immediately test and understand the basic constructs of GASPI.

Purpose of the course (benefits for the attendees)

This course provides scientific training in Computational Science, and in addition, the scientific exchange of the participants among themselves.

About the tutor

Dr. Christian Simmendinger is working as a Senior HPC consultant for T-Systems - Solutions for Research. In 1998 he received a Ph.D in Theoretical Physics at the University of Stuttgart. He currently wears the hat of an innovation manager for the H2020 INTERTWinE project, which develops efficient interoperability practices and technology between market-leading APIs (including GASPI). In 2013 – together with Rui Machado and Carsten Lojewski -   Christian Simmendinger was awarded the Joseph-von-Fraunhofer Preis for his contributions to GASPI/GPI.

Preliminary agenda

 
Day 1: GASPI API
09:30-10:00

Registration

10:00-11:30

Introduction to GASPI

11:30-13:00

lunch break

13:00-14:30

Execution model

14:30-15:00

coffee break

15:00-16:30

Segments; One-sided communication

 
16:30-17:00

coffee break

17:00-18:00Collectives/Passive communication/Fault tolerance 

 

Day 2: GASPI programming model
  
09:00-10:30

Interoperability with MPI

 
10:30-11:00

coffee break

11:00-12:30

Efficient parallel programming: From bulk synchronous to to fully asynchrounous execution

 
12:30-13:45

lunch break

13.45-15:00

Overlap communication/computation

15.00-15:15

coffee break

15:15-16:30Data dependency driven execution

Prerequisities

Familiarity with Unix  and  C or Fortran. Participants need to have their own notebook computer configured for access to Anselm and/or Salomon.

Registration

Obligatory registration - registration form here; deadline (extended) see above or exhausted course capacity

Capacity and Fees

30 participants. The event is provided free of charge for them.

Practicalities

  • See links below how to get to the campus of  VŠB - Technical University Ostrava and to the IT4Innovations building.
  • Documentation for IT4Innovations' computer systems is available at http://support.it4i.cz/docs.
Přílohy: