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Update documentation regarding CC environment variable

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This commit is contained in:
Paul Romano 2016-08-15 18:12:55 -05:00
parent 1cfa392bb0
commit 8474a9c71b
1 changed files with 8 additions and 6 deletions
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14
docs/source/usersguide/install.rst
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@ -204,20 +204,22 @@ should be used:
Compiling with MPI
++++++++++++++++++
To compile with MPI, set the :envvar:`FC` environment variable to the path to
the MPI Fortran wrapper. For example, in a bash shell:
To compile with MPI, set the :envvar:`FC` and :envvar:`CC` environment variables
to the path to the MPI Fortran and C wrappers, respectively. For example, in a
bash shell:
.. code-block:: sh
export FC=mpif90
export CC=mpicc
cmake /path/to/openmc
Note that in many shells, an environment variable can be set for a single
command, i.e.
Note that in many shells, environment variables can be set for a single command,
i.e.
.. code-block:: sh
FC=mpif90 cmake /path/to/openmc
FC=mpif90 CC=mpicc cmake /path/to/openmc
Selecting HDF5 Installation
+++++++++++++++++++++++++++
@ -343,7 +345,7 @@ compiler, it is necessary to specify that all objects be compiled with the
.. code-block:: sh
mkdir build && cd build
FC=ifort FFLAGS=-mmic cmake -Dopenmp=on ..
FC=ifort CC=icc FFLAGS=-mmic cmake -Dopenmp=on ..
make
Note that unless an HDF5 build for the Intel Xeon Phi is already on your target