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User Mailing

ICHEC mail #36


Posted: 2007-07-13

Dear ICHEC users,

Contents:

1. Scheduled downtime
2. ICHEC Training programme
3. Updated programming environment
4. Changes of limits for Class C projects
5. Acknowledging ICHEC in publications / reporting publications

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1 – Scheduled downtime
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Our next scheduled downtime (SDT) will take place on Wednesday 18th July, between 11:30 and 14:30. Hamilton will not be affected. Details of the work to be undertaken are as follows:

- Allow scheduler node to be restarted for email notification to take effect.
- To introduce new compute nodes.
- Configure IPMI on scheduler nodes.
- Apply software updates.
- Fix compute nodes currently offline.

See http://www.ichec.ie/status for further information.

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2 – ICHEC Training Programme
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Our next week long training course will take place at NUI, Galway in September 07. This course will include:

- An introduction to High-Performance Computing (HPC) - 1 day
- An introduction the the Message Passing Interface (MPI) - 2 days
- An introduction to OpenMP - 2 days

Further details will be posted shortly in our "News" section.

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3 - Updated programming environment
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Release 10.0 of the Intel Fortran and C++ compilers are now available on Hamilton. The default programming environment remains based on v 9.1, so you will need to load the new environment explicitly using the module environment, i.e.:

$ module load intel-cc/10.0.023

... for the C/C++ compilers

$ module load intel-fc/10.0.023

... for the Fortran compilers.

See http://www.intel.com/cd/software/products/asmo-na/eng/compilers/277618.htm#overview and http://www.intel.com/cd/software/products/asmo-na/eng/compilers/282048.htm#overview for further information about this release. A new version of MPICH has also been built for this new environment. It can also be loaded using the command:

$ module load mpich/1.2.7p1-intel10

On walton, the GNU compiler suite (C/C++/Fortran) has been updated to version 4.2.0. This environment can be loaded with:

$ module load gcc4/4.2.0

See http://gcc.gnu.org/gcc-4.2/ for release notes. New versions of the MPICH and MPICH2 are also available for this new environment:

$ module load mpich/gcc4.2.0
$ module load mpich2/gcc4.2.0

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4 - Changes of limits for Class C projects
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Following consultation with our Class C PIs, we have decided to increase the maximum possible duration of Class C projects from 4 months to 8 months. Class C PIs will be contacted individually to discuss how to re-activate or extend the duration of their project as appropriate. Note that the resource limits remain unchanged.

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5 - Acknowledging ICHEC in publications / reporting publications
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We would appreciate a formal acknowledgement of ICHEC by inclusion in any resulting publications of the following sentence or some variation thereof:

"The authors wish to acknowledge the SFI/HEA Irish Centre for High-End Computing (ICHEC) for the provision of computational facilities and support."

See our FAQ.

We would also appreciate if you could let us know when such publications are being accepted for publication, as this constitutes one of the major metrics by which the scientific impact of ICHEC will be assessed.

This list will be kept up to date at http://www.ichec.ie/publications

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