DECI 10 Project DNSTF - Initial Meeting Michaela Barth - - PowerPoint PPT Presentation

DECI 10 Project DNSTF - Initial Meeting

Michaela Barth (caela@kth.se)

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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

• n 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

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.

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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 6th and close June 10th. Computing access from November 1st 2013. 4

DECI Workflow

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Experts from home site and exec site will be assigned to each accepted DECI projects.

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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.

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Home sites should report the outcome/progress after the initial meeting with PIs.

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Exec sites will inform the DECI users when their assigned systems are available for their usage (after accounts are setup by WP6).

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Exec sites should help users to install the software required which are not available on the assigned systems.

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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
• nce 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

• ptimisation, 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?

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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

PRACE upcoming calls

Tier-0 Preparatory access (PA) call is constantly open, but next cut-off date will be 3rd 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.

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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.

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PRACE 8th 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

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Tier-0 application procedure

Guide for Tier-0 application procedure: http://www.prace-ri.eu/How-to-apply Proposals have to be submitted before the call deadline to be included in the peer review process. After submission, proposals can still be unsubmitted, edited and submitted again. PRACE Peer review: includes both technical and scientific assessment. If the reviewers have queries and/or raise issues regarding a proposal, the reviewer’s report will be sent to the applicants for an opportunity to respond, correcting any factual inaccuracies or providing any necessary further information in response to issues that the reviewers may have raised. Post Award obligations include a final report and acknowledgement of PRACE support.

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