DECI 10 Project DNSTF - Initial Meeting Michaela Barth (caela@kth.se)
The Partnership for Advance Computing in Europe is the European HPC Research Infrastructure PRACE enables world-class science through large scale simulations PRACE provides HPC services on leading edge capability systems on a diverse set of architectures PRACE operates six Tier-0 systems as a single entity including user and application support PRACE offers its resources through a single pan-European peer review process PRACE is providing services since August 2010 The first Tier-0 system available (Jugene) was at that time the fastest Supercomputer in Europe, now replaced by JUQUEEN 2
PRACE open calls Tier-0 call for PRACE regular access – open every 6 months get CPU time on one of the six PRACE Tier-0 systems Those calls are complemented by rolling Preparatory access calls, open all year round. Technical evaluations are every 3 months at defined cut-off dates. - type A( Code scalability tests) ; maximum allocation period is 2 months - type B( Code development and optimisation) ; maximum allocation period is 6 months - type C( Code development and optimisation with the support of PRACE experts ); maximum allocation period is 6 months including up to 6 months expert help scaling your code for Tier-0 systems DECI (Tier-1) call for applications – open every 6 months get both CPU time and expert help for up to 6 months on one of the many Tier-1 systems across PRACE partner countries. 3
DECI – Tier 1 access all over Europe The amount of allocations received in DECI compares to what is available on the national level. → DECI can be considered as an additional resource to what we already have within Sweden. DECI offers a variety of different architectures across Europe. The amount of CPU time available per DECI call is about 5% (12m CPU hours) of Lindgren@PDC which is the Swedish PRACE resource. Over subscription is typically a factor 4. DECI gives you the possibility to apply for up to 6 months PRACE expert enabling help on your applications’ scalability. Post Award obligations include a final report and acknowledgement of PRACE support. Next DECI call: DECI 11 will open May 6 th and close June 10 th. Computing access from November 1 st 2013. 4
DECI Workflow Experts from home site and exec site will be assigned to each accepted DECI projects. Home sites will need to arrange the initial meeting (visit/telcon) with the PIs of the accepted DECI projects and explain all the necessary information. Home sites should report the outcome/progress after the initial meeting with PIs. Exec sites will inform the DECI users when their assigned systems are available for their usage (after accounts are setup by WP6). Exec sites should help users to install the software required which are not available on the assigned systems. Enabling sites should start the enabling assistance as soon as possible and enabling experts should work in the close collaboration with DECI users.
Initial Meeting • X.509 Certificate (e.g. Terena e-Science) • TTS: the PRACE support system of users (TTS) • Available User Documentation • Accessing the exec site and PRACE Common Production Environment (PCPE) • Accessing CPU accounting information via DART • Final report and data collection • Enabling help
X.509 Certificate You need a valid certificate that you can use within PRACE: http://www.prace-ri.eu/Certificates-FAQ Currently the easiest way to get such a certificate is to go to https://tcs-escience-portal.terena.org/ and request a Terena e-Science certificate. If your university is connected and your personal identification flag in the universities database is set, you'll get one immediately. Otherwise: any standard X.509 certificate of a CA in the IGTF will do. Please send the DN of the certificate to me afterwards so I can enter this information in our LDAP tree.
Ticket Trouble Shooting • Primary user interface via web-interface: https://tts.prace-ri.eu/index.html Secondary interface via email: support@prace-ri.eu • Users should submit their queries to the PRACE TTS directly (rather than send to a given person).
Available user documentation • PRACE Best Practice Guide: http://www.prace-ri.eu/Best-Practice-Guides • PRACE User Documentation: http://www.prace-ri.eu/User-Documentation • Training Portal http://www.training.prace-ri.eu/ with many hours of video training material available
Access to the exec site http://www.prace-ri.eu/Interactive-Access-to-HPC Exec-site: Not assigned yet, currently assume HeCToR@EPCC (a Cray XE6 system like Lindgren) assigned Core-h (standardized) 8,437,500 (100%) (corresponds to 6750000 on a Cray XE6) Access details and specific Best Practice Guides Exec site should provide you with local Allocation Policy
PCPE PRACE Common Production Environment: http://www.prace-ri.eu/PRACE-Common-Production $ module load prace Common workspace set-up: $PRACE_ARCH – Architecture of local site $PRACE_HOME – The home directory (in PRACE GPFS if installed $PRACE_DATA – User’s data directory (in PRACE GPFS if installed $PRACE_SCRATCH – Local scratch directory
CPU accounting information: DART • DART http://www.prace-ri.eu/Accounting-Report-Tool • DART documentation still on DEISA site: http://www.deisa.eu/usersupport/user-documentation/deisa-accounting-report-tool • (Not all centers automized yet: data added by hand once a month.)
End of Project and Final Report • The final reports are expected to be submitted within 3 months after the project completion. – Independent from eventual extensions!! – Template will be provided. (2-4 pages) – e.g Template for DECI7: http://www.pdc.kth.se/~caela/DECI/Guidelinesfinalreport.pdf http://www.pdc.kth.se/~caela/DECI/DECI-template-report.doc • Data should be collected within 3 months after the project completion.
Enabling help • T7.2-2IP (DECI application support) can provide to help with enabling/optimising their applications. – help DECI users to get access to their assigned Tier-1 systems – Providing assistances with porting code to the systems. • Applications enabling for the accepeted DECI projects which require more than 1 month enabling work in their application forms. – The enabling work is usually 1-6 months which involves performance optimisation, scalability enabling, and other parallelisation related technical work. • Support if there is any request from DECI projects, as informed by WP2. (WP2 is responsible for the DECI projects progress tracking.) • Efforts needed for this DECI project confirmed with PI?
Enabling procedure The assigned expert at the exec or home site: • Assures that user(s) have their accounts • Installs the requested software if these are not available at the exec site • Helps the user(s) to compile and run their code(s) • Works on the code parallelization, scalability and optimization if requested in the application form and indicated in DPMDB 15
PRACE upcoming calls Tier-0 Preparatory access (PA) call is constantly open, but next cut-off date will be 3 rd of June! It will feature additional 150 PMs of expert help to scale your code for Tier-0. These efforts are leftovers reactivated from the first implementation phase of PRACE (1IP). They have to be spent until December 2013. Extra-special for those interested to test a MIC architecture : The 2IP Prototype system EURORA at CINECA (Intel Sandy Bridge, 16 GB DDR3, 1600 MHz) will be upgraded with Intel Xeon Phi cards, so that 64 of its nodes will have Xeon Phi cards inside (the other 64 have already Kepler GPU cards) and will be one of the PA systems available. CINCECA will run a Xeon Phi Summer School 8-13 of July. Those interested should also check out the PRACE Intel Xeon Phi BestPractice Guide currently being improved. 16
Preparatory Access A,B,C Proposals for Preparatory Access only undergo technical assessment. This assessment is forwarded to the Board of Directors that makes the decision of allocations. Applicants will be promptly informed about the outcome of their application. The allocated resources are based on the recommendations of the technical reviewers, available resources and the Board of Directors prioritization, and may differ from those requested. If expert support has been requested, applicants will be contacted by the assigned expert. 17
PRACE 8 th call: Tier-0 access March 2014 – March 2015 PRACE 8th call for applications will open in September 2013. More information and application form can be found at: http://www.prace-ri.eu/Call-Announcements – Local experts can help you with the application form: – PDC • Michaela Barth caela@kth.se – NSC • Chandan Basu cbasu@nsc.liu.se • Soon-Heum "Jeff" Ko sko@nsc.liu.se – HPC2N • Mikael Rännar mr@cs.umu.se • Jerry Eriksson jerry@cs.umu.se 18
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