From mvr at ucar.edu Fri Jan 6 14:39:02 2006 From: mvr at ucar.edu (Mathew Rothstein) Date: Fri Jan 6 14:39:03 2006 Subject: [ccsm-scientists] Re: Transition from CVS to Subversion - COMPLETE In-Reply-To: <43A34AC6.6040006@ucar.edu> References: <43A34AC6.6040006@ucar.edu> Message-ID: <43BEE376.7000606@ucar.edu> The following applies only to those of you using CVS for access to the CCSM model and its component models... The migration from CVS to Subversion of the CCSM repository is now complete. A special "thank you" goes to Mark Moore and CGD's IS staff for its cooperation in making this happen. Though our scheduled testing has ended, any odd behavior by the repository should be reported via the bulletin board forum for Subversion issues. http://bb.cgd.ucar.edu Also on this forum you will find some simple guides for common repository tasks and eventually an FAQ. We expect these to evolve over time. All future announcements regarding the new CCSM repository in Subversion will also be made on the bulletin board exclusively. Current users of the CCSM repository who have not yet received a password for the new repository may send a request to me (mvr@ucar.edu) with a phone number so that someone can get back to you promptly. New users should visit the following webpage to request access: http://www.ccsm.ucar.edu/working_groups/Software/secp/repo.request.html There is a link from this page for the CCSM Repository Access Policy. This is a good time for *all* users to remind themselves of their particular repository restrictions that were agreed to as part of obtaining CVS access. Although this document refers only to CVS, its restrictions apply to Subversion as well. The document will be updated as time permits to reflect the migration to Subversion. Users are free to install the command-line client tool on their own machines ( http://subversion.tigris.org/project_packages.html ) or those with access may choose to login to one of the following CGD machines that have the latest clients already installed: poorman bangkok salina We have received approval for the installation of Subversion client tools on the SCD Supercomputers. The timeline is unclear to us at this time, but we hope to make an announcement on that soon. Another special "thank-you" goes to Dick Valent and his staff for their efforts in making this possible. All feedback is welcomed. Please use the bulletin board forum for all comments or questions. Thank you for your attention, Mathew V. Rothstein CAM/CCSM Software Engineer mvr@ucar.edu From lbutler at ucar.edu Tue Jan 10 15:22:01 2006 From: lbutler at ucar.edu (Lisa Butler) Date: Tue Jan 10 15:22:02 2006 Subject: [ccsm-scientists] CCSM Scientists' Meeting Tomorrow Message-ID: <43C43389.90207@ucar.edu> An HTML attachment was scrubbed... URL: http://www.cgd.ucar.edu/pipermail/ccsm-scientists/attachments/20060110/5f7aac15/attachment.html From lydia at ucar.edu Mon Jan 30 11:02:46 2006 From: lydia at ucar.edu (Lydia Shiver) Date: Mon Jan 30 11:02:52 2006 Subject: [ccsm-scientists] CCSM Scientists' Meeting, Wed., Feb. 1, at 1:30 PM Message-ID: <43DE54C6.3050406@ucar.edu> Hello everyone, TIME CHANGE - 1:30 pm DAMON ROOM Please note that this week's CCSM Scientists' Meeting will begin at 1:30 p.m. in the Damon Room. Markus Jochum will give a presentation on tropical Pacific developments. To join the meeting via Webcast, go to www.ccsm.ucar.edu/vnc. If you need the password, let me know. To join the meeting via conference call, please dial 1-800-516-9896, code 373971. Thanks, Lydia From lydia at ucar.edu Tue Jan 31 16:15:35 2006 From: lydia at ucar.edu (Lydia Shiver) Date: Tue Jan 31 16:15:39 2006 Subject: [ccsm-scientists] interal release of CCSM on lightning and bluevista Message-ID: <43DFEF97.9000800@ucar.edu> Dear CCSM users, The release version of CCSM has been validated on both lightning (using the pathscale compiler) and bluevista. Since this is an internal release, we will be distributing this code and associated scripts via the following tar file (note that this file exists only on SCD machines). /fs/cgd/csm/collections/ccsm3_0_1_releases/ccsm3_0_1_beta08.tar We have looked at performance only for a T31_gx3v5 B configuration: bluevista - 46 years/day on 64 procs bluesky - 23 years/day on 64 procs lightning - 11.5 years/day on 38 procs The current default processor settings that are provided with the scripts should work for T31_gx3v5 B configuration, but are are not guaranteed to lead to a well balanced simulation for other configurations. We would like to stress that we have not yet determined optimal load balanced processor settings on either bluevista or lightning for other configurations. We encourage users to perform some load balancing exercises to determine optimal load balance for their particular configurations before embarking on longer production runs on these new platforms. Bluesky settings can be used as a first guess at load balancing on both bluevista and lightning. CSEG will help with load balancing issues as they arise. We want to alert users of a CCSM bluevista potential problem. Periodically, the CCSM model will hang in MPI finalize calls. As a result, restart pointer files are never placed in short term archiving and the model will restart from the previous set of restart files that were written out. SCD is aware of this problem and is working closely with CSEG to resolve this issue. We are also in the process of creating tags for the development CCSM code base. If you are working with this code base, please contact the appropriate liaison for details. We would like to thank SCD (and especially the SCD consultants) for their extensive help in quickly resolving porting problems as they occurred. Mariana Vertenstein