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Server updates on 2013nov27 were successful

The departmental servers are working fine after the updates.  coxeter and sphere took somewhat longer to update due to the large number of updates (this was a minor version update to our RHEL distribution).

Software updates at 4:15pm on Wednesday November 27, 2013

The departmental servers coxeter, sphere, and the mail, web, share, ptr, and blog/wiki servers will have software updates applied tomorrow, Wednesday afternoon, November 27, 2013 which will require rebooting (most servers will be unavailable starting at 4:15pm).  Since some updates will be applied while the servers are still up there may be some temporary issues with some software. We hope that any such issues will be minor and by doing most of the upgrading before bringing systems down the shorter downtime will be worth the potential minor problems. Please restart any programs if you observe problems during the upgrades (and please let us know at requests@math.toronto.edu, so we can investigate). We expect the systems to be back up by 5:00pm.

Server updates on 2013oct23 were successful

The departmental servers are working fine after the updates.

Software updates at 4:15pm on Wednesday October 22, 2013

The departmental servers coxeter, sphere, and the mail, web, share, ptr, and blog/wiki servers will have software updates applied tomorrow, Wednesday afternoon, October 23, 2013 which will require rebooting (most servers will be unavailable starting at 4:15pm).  Since some updates will be applied while the servers are still up there may be some temporary issues with some software. We hope that any such issues will be minor and by doing most of the upgrading before bringing systems down the shorter downtime will be worth the potential minor problems. Please restart any programs if you observe problems during the upgrades (and please let us know at requests@math.toronto.edu, so we can investigate). We expect the systems to be back up by 5:00pm.

Major coxeter update

The upgrades to coxeter’s hardware and software seem to have been successful.  Information about the new coxeter will be added to http://www.math.toronto.edu/admin/coxeter-upgrade.html as necessary.

Please let us know as soon as possible at requests@math.toronto.edu if you notice any problems.  It is better to let us know about problems early rather than wait for the start of the academic year when things are so busy that fixes may take a long time.  In particular please test the new TeX and LaTeX (using pdftex and pdflatex is the recommended way).

Server updates on 2013aug14 were successful

The departmental servers are working fine after the updates.

Major coxeter update at 2:00pm on Wednesday August 14, 2013

Starting at approximately 2:00pm on Wednesday, Aug 14 we will be upgrading coxeter‘s hardware and software.  The most noticeable change for users who use the coxeter GUI directly is that the only supported desktop environment is KDE4 which looks somewhat different than the KDE3 version from before.  Please see: http://www.math.toronto.edu/admin/coxeter-upgrade.html for more detailed information about this upgrade.

We expect that coxeter will be back up around 5:00pm if there are no unforeseen problems.  Please let us know (at requests@math.toronto.edu)  if you have any problems with or questions about the new coxeter.

Software updates at 3:45pm on Wednesday August 14, 2013

The departmental server sphere, and the mail, web, share, ptr, and blog/wiki servers will have software updates applied this Wednesday afternoon, August 14, 2013 which will require rebooting (most servers will be unavailable starting at 3:45pm).  Since some updates will be applied while the servers are still up there may be some temporary issues with some software. We hope that any such issues will be minor and by doing most of the upgrading before bringing systems down the shorter downtime will be worth the potential minor problems. Please restart any programs if you observe problems during the upgrades (and please let us know at requests@math.toronto.edu, so we can investigate). We expect the systems to be back up by 4:30pm.

New sphere

The update of hardware for sphere went smoothly.  The new machine is faster and we have installed the latest versions of:

  • Magma (version V2.19-7); type magma to run it
  • Mathematica (version 9.0.1); type math (CLI) or mathematica (GUI) to run it
  • Matlab (version R2013a); type matlab to run it

As mentioned before we are negotiating to get the newest version of Maple as well.

There is some free mathematical software on sphere as well:

  • Asymptote, a powerful descriptive vector graphics language; type asy (CLI) or xasy (GUI) to run it
  • Axiom, a general purpose computer algebra system; type axiom to run it
  • Macaulay2, a software system devoted to supporting research in algebraic geometry and commutative algebra; type M2 to run it
  • Sage, a free open-source mathematics software system licensed under the GPL which combines the power of many existing open-source packages into a common Python-based interface and whose mission is to create a viable free open source alternative to Magma, Maple, Mathematica, and Matlab; type sage to run it
The new sphere has over 1TB of scratchspace (space which is NOT BACKED UP, to be used for temporary files only, that may disappear at any time) for users.  Each user has, in additional to their home directory mounted from coxeter, a directory in /DO_NOT_BACK_UP/scratch/<user’s account name>.

sphere update at 3:45pm on Wednesday July 10, 2013

Starting at approximately 3:45pm on Wednesday, Jul 10 we will be updating sphere‘s hardware.  The new sphere will have 2 6-core Intel Xeon 2.4GHz CPUs and 64GB of RAM in an energy-efficient system.  There will be a shared scratchspace area that users can use to temporarily store files during computations.  Please note that the scratchspace area WILL NOT BE BACKED UP and any files put there could be erased or deleted without warning at any time.  For example, a user with account name janedoe can use the scratchspace in:

/DO_NOT_BACK_UP/scratch/janedoe

It is expected that the hardware changeover will not be very difficult, but not quite all of the software will be ready yet.  We have newer versions of most of the software from the old sphere.  We will need Thursday to install the new Mathematica and currently there are negotiations underway to get a version of maple for sphere.  In order to understand usage could you please let us know (at requests@math.toronto.edu) if you have used maple in the last three years and if you think having maple on the new sphere is important.

A newer, larger version of coxeter is also being planned for later this summer.

Please type bigjobs on coxeter or visit:

http://www.math.toronto.edu/help/bigjobs.txt

to read the guidelines for running large programs on our departmental systems.

We expect that sphere will be back up around 4:15pm if there are no unforeseen problems.  Please let us know (at requests@math.toronto.edu)  if you have any problems with or questions about the new sphere.