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merging with upstream

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Adam Nelson 2015-12-23 18:24:26 -05:00
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13
docs/source/usersguide/input.rst
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@ -1147,10 +1147,12 @@ Each ``material`` element can have the following attributes or sub-elements:
:density:
An element with attributes/sub-elements called ``value`` and ``units``. The
``value`` attribute is the numeric value of the density while the ``units``
can be "g/cm3", "kg/m3", "atom/b-cm", "atom/cm3", "sum", or "macro".
The "sum" unit indicates that the density should be calculated as the sum
of the atom fractions for each nuclide in the material. This should not be
used in conjunction with weight percents. The "macro" unit is used with
can be "g/cm3", "kg/m3", "atom/b-cm", "atom/cm3", or "sum". The "sum" unit
indicates that values appearing in ``ao`` attributes for ``<nuclide>`` and
``<element>`` sub-elements are to be interpreted as nuclide/element
densities in atom/b-cm, and the total density of the material is taken as
the sum of all nuclides/elements. The "sum" option cannot be used in
conjunction with weight percents. The "macro" unit is used with
a ``macroscopic`` quantity to indicate that the density is already included
in the library and thus not needed here. However, if a value is provided
for the ``value``, then this is treated as a number density multiplier on
@ -1964,9 +1966,6 @@ attributes/sub-elements:
automatically assumes a one energy group calculation over the entire
energy range.
.. note:: When running in the multi-group :ref:`energy_mode`, the
energy bins must match the data library's group boundaries.
:albedo:
Surface ratio of incoming to outgoing partial currents on global boundary
conditions. They are listed in the following order: -x +x -y +y -z +z.

11
docs/source/usersguide/install.rst
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@ -8,7 +8,7 @@ Installation and Configuration
Installing on Ubuntu with PPA
-----------------------------
For users with Ubuntu 11.10 or later, a binary package for OpenMC is available
For users with Ubuntu 15.04 or later, a binary package for OpenMC is available
through a Personal Package Archive (PPA) and can be installed through the APT
package manager. First, add the following PPA to the repository sources:
@ -28,6 +28,9 @@ Now OpenMC should be recognized within the repository and can be installed:
sudo apt-get install openmc
Binary packages from this PPA may exist for earlier versions of Ubuntu, but they
are no longer supported.
--------------------
Building from Source
--------------------
@ -74,6 +77,12 @@ Prerequisites
You may omit ``--enable-parallel`` if you want to compile HDF5_ in serial.
.. important::
OpenMC uses various parts of the HDF5 Fortran 2003 API; as such you
must include ``--enable-fortran2003`` or else OpenMC will not be able
to compile.
On Debian derivatives, HDF5 and/or parallel HDF5 can be installed through
the APT package manager: