Daily Bulletin Archive

April 26, 2012

Time: 10:00am, Wednesday, April 25, 2012
Location: VisLab at the NCAR Mesa Lab, 1850 Table Mesa Drive, Boulder, CO

Globus Online is a convenient interface for transferring files between two endpoints – for example, between NCAR resources and XSEDE facilities or other sites. Globus Online also offers a feature called Globus Connect, which enables you to move files easily to and from your laptop or desktop computer and other endpoints.

The CISL Consulting Services Group will conduct an hour-long workshop on Wednesday, April 25, to help you set up and work with Globus Online. You are encouraged to bring your own laptop for practice. The workshop will also be available online through the following link for those who can't attend in person.

Please contact cislhelp@ucar.edu if you have any questions or concerns.

April 16, 2012

On Saturday, April 14 2012, the NCAR/CISL Data Center will be shut down for preventative maintenance on select infrastructure support systems. This is the normal Spring season down time for this purpose. Please note this activity is a complete shutdown with some minor exceptions listed below, scheduled for 6 a.m. to 6 p.m. Mountain Time.

The supercomputer systems will begin their shut down at 12:01 a.m. Mountain Time, and some computing systems, depending on their function, will begin their shutdown Friday afternoon/evening. Please make arrangements accordingly.

Once all maintenance work is completed, the systems will be brought back up in their order of dependency. CISL and Facilities Management and Sustainability maintain the twelve hour window to accomplish all tasks at hand.

Basic networking for phone service will be available for the Mesa Lab during most of this maintenance window, however, intermittent outages may occur.

For more information, contact CISL Help Desk at cislhelp@ucar.edu or 303-497-2400.

April 12, 2012

Best Practice: Periodically examine your HPSS holdings and remove unwanted, unneeded files. This reduces your GAU charges and makes the HPSS system more efficient for everyone.
For more on how to make the most of your computing and storage allocations, please see CISL best practices.

April 12, 2012

Check your GAU usage frequently to help ensure that you are using NCAR resources as efficiently as possible. Understand how your choice of queues affects charges against your allocation, and be aware of other allocation-related policies. See Allocation management.

For more on how to make the most of your computing and storage allocations, please see CISL best practices.

March 23, 2012

CISL now supports file transfers using the Globus Online interface, which simplifies and speeds the movement of data between CISL-managed resources and XSEDE facilities or other sites. The service also provides a feature called Globus Connect for easy transfers to and from laptop or desktop computers and other endpoints. For details, see our Globus Online documentation.

March 19, 2012

XSEDE Training at TACC: C Programming Basics
March 19, 2012
9 a.m. – 4 p.m. (CT)
J.J. Pickle Research Campus
ROC 1.603
10100 Burnet Rd.
Austin, TX 78758

*This class will be webcast.*

On Monday, March 19, the Texas Advanced Computing Center will present
the training session: C Programming Basics.

Basic C programming skills are essential for researchers in areas of
High Performance Computing. These skills can be directly applied to
resources at the Texas Advanced Computing Center and in any Linux/Unix
environment. This class is intended for the beginner wishing to gain
more experience in C programming.

9:00 a.m. - 3:00 p.m. Overview of the important concepts related to C
syntax and programming.

3:00 p.m. - 4:00 p.m. Short lab with exercises showing how to compile
and run C code. Exercises (with solutions) will be included to show the
basic process of developing C programs.


Please submit any questions you may have via the Consulting section of
the XSEDE User Portal.  https://portal.xsede.org/help-desk

March 19, 2012

A recent survey of NCAR's scientific computing community showed that 40% of respondents have had no experience with the use of modules to set up, modify or maintain their user environment.

With four compilers to be available on Yellowstone, and multiple software and library versions with each compiler, using modules will help you ensure that your environment is always properly configured.

The modules utility is already available on the existing NCAR supercomputing and analysis systems that CISL manages. If you aren't familiar with them and how they can help you in your work, take a quick look at our new web page: Environment modules.

March 14, 2012

For researchers interested in or planning to apply for the upcoming University allocation opportunities on NCAR's forthcoming Yellowstone environment, Dave Hart, NCAR's User Services manager, will host an online Q&A session March 13, 2012, 1pm-3pm (MDT), that will include a brief description of the Yellowstone system, tips for writing successful allocation requests, and an opportunity to ask questions.

To call in to the meeting, please use the following:

Audio Dial-In Information:

U.S & Canada: 866.740.1260

Access Code: 4971234

To join the meeting online and see the slides: https://cc.readytalk.com/r/eqruqiywkzp4

The Yellowstone system, a 1.5-Pflops HPC system is scheduled to enter production in late summer 2012, and next deadline for University allocations is March 26. This session is an opportunity for potential requesters to ask questions about the system, eligibility requirements and writing allocation requests.

Details on Yellowstone allocation opportunities and deadlines are available at https://www2.cisl.ucar.edu/docs/allocations.

March 6, 2012

XSEDE Training at TACC: Fortran 90/95/2003 Programming

March 5, 2012 (Monday)
1 p.m. - 5 p.m. (CT)
J.J. Pickle Research Campus
ROC 1.603
10100 Burnet Rd.
Austin, TX 78758

Fortran is a modern language that is reviewed and updated regularly to meet the needs of the scientific community. It facilitates a traditional procedural programming style, but also supports object-oriented programming similar to C++.

Fortran programming skills are highly useful for developing new applications that achieve excellent performance, and for working with a large body of existing scientific codes that have been written in Fortran. These skills can be directly applied to using resources at computing centers, such as the Texas Advanced Computing Center, and on any Linux/Unix/Windows environment. The class is intended for the intermediate user wishing to gain expertise in Fortran90/95/2003/2008 programming.

This class will be webcast.


Please submit any questions you may have via the Consulting section of the XSEDE User Portal.

February 24, 2012

CISL daily backs up the files in your personal /glade/home file space, but that is not the case in other GLADE directories you might be using.

For details on our backup and purge policies, please review our newly revised GLADE File System documentation. Be sure to take a look at our new Transferring files documentation, too.

Let us know what you think. We look forward to hearing from you.