Course 2011-D at HLRS, Stuttgart
HLRS (Höchstleistungsrechenzentrum Stuttgart),
Allmandring 30, D-70550 Stuttgart
||2011, Monday Apr. 18, 9:00 - Tuesday Apr. 19, 17:30
||Platforms at HLRS, Usage and Programming
The course will focus on the major platforms at HLRS:
The course has two days.
- Cray XE6 (preliminary system for the next petascale system)
- NEC LX-2400 (Nehalem Cluster, 62 TFlop/s, 5600 cores)
- IBM bwGrid Cluster (46 TFlop/s)
- NEC SX-9 (19 TFlop/s, 192 vector processor cores)
- Cray XT5m (8.5 TFlop/s, 892 cores)
- CUSS (Common Ulm Stuttgart Server)
Seperate registration of individual days is possible.
Especially, if one is interested only in the new and upcoming
Cray XE6 petascale installation at HLRS, all necessary information
is presented on the second day.
- The first day gives an overview on all platforms of HLRS.
- The second day is dedicated to the new Cray XE6 platform.
Monday, April 18, 2011
Overview on HLRS Platforms -- Access, Usage and Programming
9:00 Introduction (R. Rabenseifner, HLRS)
9:15 HPC Infrastructure Evolution at HLRS (M. Resch, HLRS)
9:45 Platforms at HLRS (M. Hecht, HLRS)
Hardware overview on
Cray XE6, NEC SX-9, Nehalem-Cluster, bwGRID Cluster, Cray XT5
10:30 Access to the Platforms at HLRS (Th. Bönisch, HLRS)
10:45 Cray XE6 and XT5m - Usage and Programming (Chr. Niethammer, HLRS)
(a short overview)
11:30 Preparation for grid usage on bwGrid resources (talk) (M. Hecht, HLRS)
(includes remarks on gsissh)
12:15 bwGrid - Usage and Programming (M. Hecht, HLRS)
(includes also remarks on visualization nodes)
14:00 NEC Nehalem Cluster - Usage and Programming (H. Berger, NEC)
(includes also remarks on NVIDIA/Tesla)
15:00 NEC SX-9 at HLRS - Usage and Programming (St. Haberhauer, NEC)
15:30 Filesystems and HPSS at HLRS (Th. B÷nisch, HLRS)
16:20 ISV-Codes and Licenses at HLRS (M. Bernreuther, HLRS)
17:00 Guided tour (HLRS)
Tuesday, April 19, 2011
Cray XE6 Optimization Workshop (S. Andersson, Cray)
9:00 Cray XE6 Architecture
Architecture of Cray XE6
Socket 34 architecture
9:40 The CRAY Programming Environment - Part I
Compiler options and flags
10:45 The CRAY Programming Environment - Part II
Batch jobs - How to use the HLRS XE6
12:00 Optimization I
Using Craypat to profile applications
13:45 Optimization II
Scaling applications to thousands of processors
15:30 Optimization III
Memory understanding and optimization
Cache blocking examples
16:15 Optimization IV: I/O
MPI-IO Environment variables
from HLRS, and
TBA from Cray and NEC
||via online registration form
||for registration is Apr. 03, 2011 (extended deadline)
|| Members of German universities and public research institutes: none,
others: 150 EUR (includes food and drink at coffee breaks,
will be collected on the first day of the course,
||Programming experience, and partially MPI-1
The next public transport stations are:
"Universität, Stuttgart" (S-Bahn station, 15 min on foot) and
(Bus station, 4 min on foot to HLRS,
bus lines 84, 92, 746, 747, 748, but not 82!
from S-Bahn station "Universität, Stuttgart" and
bus line 81 from S-Bahn station "Stuttgart-Vaihingen").
additional hotel list
Private Bed&Breakfast is also available (might be cheaper than the hotels),
see, e.g., www.night-and-day.de
A youth hostel is also available.
(HLRS, see Rechenzentrum Universität Stuttgart on the map),
or HLRS, Allmandring 30, nearby crossroads Allmandring x Nobelstr., at coordinates 25.G on Stuttgart city map
HLRS and University Campus
or HLRS and Stuttgart-Vaihingen
(or you can use
Online-Stadtplan des Stadtmessungsamtes Stuttgart or
phone 0711 685 65530,
| Cancelation policy
|| If you cannot come to the course, please
send an email to the organizer as soon as possible.
This would allow us to accept additional participants
from the waiting-list. There is no cancelation fee.
Registered persons that do not cancel and do not show up without any
reasons are blocked for the next year on any of our workshops
(because it is to expensive to produce unused copies of the slides
|| maximum of
42 participants in Stuttgart and Kassel,
35 in Dresden and Aachen,
34 in Garching,
26 in Jülich,
20 an der TUHH
(according to the seats in the rooms).
|| Each participant will get a paper copy of all slides.
The MPI-1 part of the course is based on the MPI course developed by the
Training and Education Centre,
Edinburgh Parallel Computing Centre.
If you want, you may also buy copies of the standards
MPI-2.2 (Hardcover, 17 Euro) and OpenMP 3.0 (about 8 Euro).
Most material of the course (including the audio information)
can also be viewed in the
ONLINE Parallel Programming Workshop.
Organizer of the HLRS courses:
Phone: 0711 685 65530