bregne will be upgraded to centos 4. During this upgrade /net/bjerknes1 will be unavailable till approx. 13:00.
13:10 Update: The upgrade is complete and filesystem is back.
Upgrade
Tape robot and /migrate filesystem down for tapedrive upgrade
The taperobot is getting 2 new tapedrives installed and will be unavailable from 09:45 to approx. 11:00 16. Feb.
Files in /migrate (and /net/bcmhsm) will be unavailable.
This entry will be updated with more information later.
11:20 Update: The upgrade takes somewhat longer than planned.
12:45 Update: The upgrade is complete and filesystem back.
Files in /migrate (and /net/bcmhsm) will be unavailable.
This entry will be updated with more information later.
11:20 Update: The upgrade takes somewhat longer than planned.
12:45 Update: The upgrade is complete and filesystem back.
Software update on backup server (jambu)
The backup server has been updated with latest OS-maintenance release for AIX (5200-08) and latest tape-device drivers. In addition TSM backup server was updated to version 5.2.7 and TSM client to version 5.2.4. Downtime for restore and /net/bcmhsm (/migrate for Bjerknes) was only a few minutes during reboot.
Fire cluster upgraded to Rocks 4.1 OS
Fire cluster upgraded to Rocks 4.1 OS. It was therefore unavailable from 13:00 to 17:00 (no users were currently using fire, and no jobs were running).
Intel compilers upgraded on fimm
The intel fortran and C/C++ compilers were upgraded from v8.1.023 to v8.1.027. This should fix a couple of internal compiler-errors we've been triggering.
PGI compilers upgraded on fimm
The Portland Group compilers were upgraded from v5.2 to v6.0.
Linux cluster ‘fire’ reinstalled
Fire is now back on-line. All nodes has been re-installed with the Rocks linux cluster distribution. Unfortunately the installation took a bit more time than expected because front-end node for some reason refused to install rocks distribution. Everything worked well when we used node 5 as front-end node.
Total downtime: 52 hours, 30 minutes
Total downtime: 52 hours, 30 minutes
Totalview upgraded to 6.7.0-1 on TRE and fimm
Totalview as upgraded to v6.7.0-1 on FIMM and TRE.
* New Memory Debugging Features
- Heap Debugging Filters
- Export Memory Debugging Information
- Error Event Reporting Controls
- Improved Memory Event Details window
- Graphical Heap Browsing
- Pointer Queries
For more detail, check http://www.etnus.com/TotalView/Latest_Release.html
and http://www.etnus.com/Documentation/rel6/pdf/new_features.pdf
* New Memory Debugging Features
- Heap Debugging Filters
- Export Memory Debugging Information
- Error Event Reporting Controls
- Improved Memory Event Details window
- Graphical Heap Browsing
- Pointer Queries
For more detail, check http://www.etnus.com/TotalView/Latest_Release.html
and http://www.etnus.com/Documentation/rel6/pdf/new_features.pdf
mpiexec upgraded on fimm
mpiexec on fimm was upgraded from v0.75 to v0.77.
Changelog below.
Changelog below.
Mathematical Acceleration Subsystem libraries upgraded
The Mathematical Acceleration Subsystem (MASS) libraries was upgraded from v3.1 to v4.1.
Ref:
Features and benefits
The Mathematical Acceleration SubSystem (MASS) library is an approach to increase the performance of a code. It provides high performance versions of a subset of mathematical intrinsic functions. To do this, it sacrifices a small amount of accuracy. Compared to the standard mathematical library, libm.a, the MASS library can only differ in the last bit. This is not significant in most programs. The libmass.a library can be used with either Fortran or C applications and runs under AIX. As all functions in the MASS library use the same syntax as the standard functions it replaces, you do not have to make any changes in the source code to use it. MASS also offers a vector version for some of the functions. The vector functions are more efficient than the scaler ones, but require that the source code is rewritten. There are two versions of the vector MASS library. The first library, libmassv.a, contains vector function subroutines that run on the entire IBM RS/6000 family. The second library, libmassvp4.a, contains the subroutines of libmassv.a and adds a set that is tuned for and based upon the Power4 architecture.
Example of use:
To use the standard MASS library, link your program with -lmass. For example,
% xlf90 -O3 -qarch=auto -qtune=auto x.f -lmass
% cc -O3 -qarch=auto -qtune=auto x.c -lmass -lm
As -lmass replaces some of the functions in -lm, you must always link it before you link with -lm. xlf90 and its variants link automatically with -lm.
Ref:
Features and benefits
The Mathematical Acceleration SubSystem (MASS) library is an approach to increase the performance of a code. It provides high performance versions of a subset of mathematical intrinsic functions. To do this, it sacrifices a small amount of accuracy. Compared to the standard mathematical library, libm.a, the MASS library can only differ in the last bit. This is not significant in most programs. The libmass.a library can be used with either Fortran or C applications and runs under AIX. As all functions in the MASS library use the same syntax as the standard functions it replaces, you do not have to make any changes in the source code to use it. MASS also offers a vector version for some of the functions. The vector functions are more efficient than the scaler ones, but require that the source code is rewritten. There are two versions of the vector MASS library. The first library, libmassv.a, contains vector function subroutines that run on the entire IBM RS/6000 family. The second library, libmassvp4.a, contains the subroutines of libmassv.a and adds a set that is tuned for and based upon the Power4 architecture.
Example of use:
To use the standard MASS library, link your program with -lmass. For example,
% xlf90 -O3 -qarch=auto -qtune=auto x.f -lmass
% cc -O3 -qarch=auto -qtune=auto x.c -lmass -lm
As -lmass replaces some of the functions in -lm, you must always link it before you link with -lm. xlf90 and its variants link automatically with -lm.