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<channel rdf:about="http://www.mcstas.org">
  <title>McStas News</title>
  <link>http://www.mcstas.org</link>
  <description>Frontpage headlines</description>
</channel>

<item>
  <title>  January 6th: New affiliation for Erik Knudsen and Peter Willendrup</title>
  <link>http://www.mcstas.org</link>
  <date> McNews.1</date>
  <description><![CDATA[

   A reorganisation at DTU and RISŲ DTU has resulted in a new home
   for the DTU effort on McStas, namely DTU Physics.

   Hence, Erik Knudsen and Peter Willendrup have a new affiliation, see
   the Contact page.

   At our new home we will be part of a dedicated neutron- and X-ray
   scattering group, which we think will become a very good home!]]></description>
</item>


<item>
  <title>  July 26th, 2011: McStas 1.12c on Mac OS X Lion - new DMG added to download</title>
  <link>http://www.mcstas.org</link>
  <date> McNews.10</date>
  <description><![CDATA[
  section.

   A new DMG for Mac OS X 10.7 Lion has been put together and can be found
   in the download section.

   Note that to enable multi-core / parallel simulations, you need to
   compile openmpi yourself before installing McStas, since it is not
   provided by Apple on Lion. Alternatively you can perhaps get it via
   MacPorts.

   The DMG should also work on Snow Leopard - but all software on the DMG
   must be reinstalled if McStas was previously installed.]]></description>
</item>


<item>
  <title>  July 24th, 2011: McStas 1.12c on Mac OS X Lion - hold your horses!</title>
  <link>http://www.mcstas.org</link>
  <date> McNews.11</date>
  <description><![CDATA[

   The newly released Mac OS X 10.7 Lion includes a lot of nice upgrades
   from Apple - including some that break the tool-layer and mpi support
   for McStas:

   Symptom Cause
   mpi compile fails The system-provided mpi is not detected by the McStas
   configure script
   mcgui does not start mcgui requires perl::Tk, and the version we ship
   with McStas 1.12c explicitly requires perl 5.8, which has been removed
   from Lion
   mcplot does not plot For plotting, we rely on the SciKarl port of
   pgplot, perl::PDL and perl::PGPLOT. The SciKarl perl modules are built
   for perl 5.8 which has been removed from Lion

   In conclusion: If you want to keep a functional McStas install, please
   do not upgrade to Lion yet!]]></description>
</item>


<item>
  <title></title>
  <link>http://www.mcstas.org</link>
  <date>cNews.2</date>
  <description><![CDATA[]]></description>
</item>


<item>
  <title></title>
  <link>http://www.mcstas.org</link>
  <date>cNews.3</date>
  <description><![CDATA[]]></description>
</item>


<item>
  <title>   temporarily avoid it, do not use the options="... per cm2 ..." and "...</title>
  <link>http://www.mcstas.org</link>
  <date> McNews.4</date>
  <description><![CDATA[   in spikes appearing randomly in the monitored distributions. To
   per steradian ..." component arguments. To obtain the flux per cm2 or
   steradian, divide manually the result by the monitor area or the
   effective solid angle.]]></description>
</item>


<item>
  <title>  Nov 9th, 2011: Installation with MPI on Linux/Ubuntu 11.10</title>
  <link>http://www.mcstas.org</link>
  <date> McNews.5</date>
  <description><![CDATA[

   It has been reported that the mpich2 parallel processing library should
   be avoided under Ubuntu 11.10 ('mpd' clashes with an other executable).
   Please install instead openmpi with e.g.:
  # sudo apt-get install openmpi-bin libopenmpi-dev

   or from Synaptic/Ubuntu Software Center.
   In case Mcstas was installed before openmpi, you will need to
   re-configure it with e.g.:
  # cd /usr/local/lib/mcstas/tools/perl]]></description>
</item>


<item>
  <title></title>
  <link>http://www.mcstas.org</link>
  <date>cNews.6</date>
  <description><![CDATA[]]></description>
</item>


<item>
  <title></title>
  <link>http://www.mcstas.org</link>
  <date>cNews.7</date>
  <description><![CDATA[]]></description>
</item>


<item>
  <title>   (which should not affect your instrument definitions).</title>
  <link>http://www.mcstas.org</link>
  <date>McNews.8</date>
  <description><![CDATA[]]></description>
</item>


<item>
  <title>  Oct 31st, 2011: LEGO (c) neutron scattering instruments controlled with McStas</title>
  <link>http://www.mcstas.org</link>
  <date> McNews.9</date>
  <description><![CDATA[

   We have set-up LEGO models of a TAS and crystal TOF instrument,
   using the NXT technology. This is a robotic model (it moves) to be
   used for teaching/training and in exhibitions. When a McStas simulation
   is launched on the PC, the model positions itself with the
   corresponding geometry.
   The methodology to build and control the models is detailed at

           ILL/Computing for Science/Virtual instruments/LEGO

   were you will learn:
     * the LEGO parts required, and how to order them
     * the building of the LEGO models
     * the Ubuntu computer to be configured (using t2n and nbc)
     * the control programs to load in the NXT
     * the McStas components to use in order to communicate with the LEGO
       model.]]></description>
</item>

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