---------------------------------------------------------------------- H H PPP CCC UK NATIONAL HPC SERVICE H H P P C C -------------------------- HHHHH PPP C x x provided by H H P C C xx EPCC and H H P CCC x x CCLRC Daresbury Laboratory ---------------------------------------------------------------------- HPCx User Mailing 009 18 December 2002 ---------------------------------------------------------------------- Contents ** Course: Effective exploitation of the HPCx system ** Introductory course ** Closure of early-use projects: advance warning ** Workspace and disk quotas ---------------------------------------------------------------------- Greetings-- COURSE: EFFECTIVE EXPLOITATION OF THE HPCx SYSTEM This is a three-day HPCx course to be held at EPCC from Tuesday 28th to Thursday 30th January 2003. It will be taught by Charles Grassl and Farid Parpai, who are Technical Specialists at the IBM Advanced Computing Technology Center and the IBM High Performance Computing Group respectively. The course will take the form of lectures in the morning, followed by afternoon consultancy sessions to give you the opportunity for in-depth discussions on issues relating to your own codes. We will provide temporary course accounts to enable access to the HPCx system, although existing users are welcome to use their own logins. To apply for a place on this course please see http://www.hpcx.ac.uk/support/training/form.html Appended is an overview of the sorts of topics that will be covered - we will send a more detailed timetable soon. Note that there will be a run of "Introduction to the HPCx Service" immediately prior to this course on Monday 27th January which you are welcome to attend. ------------------------------------------- Effective Exploitation of the HPCx System EPCC, The University of Edinburgh 28-30 January 2003 ------------------------------------------- Topics: o POWER4 Architecture - System configuration - Essential commands o LoadLeveler - Essential commands - Usage o Compiler Usage - Strategies - Options o Single CPU optimization - Strategy - Tactics o Optimized Libraries - ESSL - MASS o MPI o OpenMP - Pthreads - OpenMP internals o Mixed Mode: OpenMP and MPI o Regatta Specific Tactics - Large Pages - Memory Affinity - Process Binding o Programming Tools - Profilers - Debuggers o Programming Tips - Makefiles - Extensions - Language bindings - 32- and 64-bit programming - Preprocessors ---------------------------------------------------------------------- INTRODUCTORY COURSE On Monday, 27th January 2003 there will be a second run of the course "Introduction to the HPCx Service". The course will provide an overview of HPCx, and will cover topics such as compilation, execution, batch job submission, tools and libraries. There will also be an opportunity for attendees to request and receive consultancy on their own specific codes. The course will be held in the EPCC training room in Edinburgh and is free and open to all HPCx users. The "Effective Exploitation of the HPCx System" course runs on the three days after this one. Apply for either or both here: http://www.hpcx.ac.uk/support/training/form.html ---------------------------------------------------------------------- CLOSURE OF EARLY-USE PROJECTS At present all the accounts set up for the early-use projects still exist, although as they have no time budgets you will not be able to submit jobs. However we are keen to close these down, so that we can recycle the disk space. Our plan will be to terminate all these accounts on Friday, January 10. People who will be continuing to use the service in full-service projects should move their files into their new accounts. If there is anyone who will find this seriously inconvenient, please send in a query. ---------------------------------------------------------------------- WORKSPACE AND DISK QUOTAS Disk space on HPCx will available in two varieties: homespace and workspace. Homespace is intended for permanent files: source and binary codes, permanent small datasets, etc. This is the area that is backed up. Workspace is not backed up. We expect this to be used for input and output files for your current work, and it will be considerably larger than homespace. Workspace for each user can be can be found here: /hpcx/work/// - where is the code for your project (eg, x01); is the code for your project group, if your project has groups, or the same as the project code, if not (eg, x01-a) is your login name. So as a member of project z001 my workspace is here: /hpcx/work/z001/z001/johnf For the present, we will set default quotas for each of the current user projects: 40Gb for homespace and 200 Gb for workspace. These are total quotas for the whole project. In the New Year these will be adjusted to suit users' requirements. If the default quotas are likely to cause problems over the holiday period, please send in a query to support@hpcx.ac.uk. ---------------------------------------------------------------------- Regards --John ---------------------------------------------------------------------- Earlier mailings: http://www.hpcx.ac.uk/support/notices/index.html -- John Fisher j.fisher@epcc.ed.ac.uk HPCx User Administration and Helpdesk HPCx: http://www.hpcx.ac.uk Helpdesk: support@hpcx.ac.uk Phone: +44 131 650 5029 Fax: +44 131 650 6555