ANSYS
-----

The HEC currently hosts several components of the commercial Ansys package, 
with licenses supplied by the Engineering Department.

A sample serial job script for cfx5solve
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Cfx5solve batch jobs may be run by creating a batch job control script i
(such as the example below, which uses ansys_job.com):

.. code-block:: sh

  #!/bin/bash

  #SBATCH -p serial
  #SBATCH --mem=4G

  source /etc/profile
  module add ansys/21.2

  echo $MYHOSTLIST

  cfx5solve -batch -def mymodel.def
::

A sample parallel job script for cfx5solve for Ansys 19 or earlier
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

For models suitable for parallel running, the following parallel job i
template can be used, which runs on 2 of the 16-core compute nodes:

.. code-block:: sh

  #!/bin/bash

  #SBATCH -p parallel
  #SBATCH --nodes=2
  #SBATCH -C node_type=10GethAny
  #SBATCH --exclusive

  source /etc/profile
  module add ansys/17.2

  echo $MYHOSTLIST

  cfx5solve -batch -def mymodel.def \
    -par-dist "$MYHOSTLIST" -start-method "HP MPI Distributed Parallel" 
::

A sample parallel job script for cfx5solve for Ansys 20 or later
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

For models suitable for parallel running, the following parallel job 
template can be used, which runs on two of the 16-core compute nodes:

.. code-block:: sh

  #!/bin/bash

  #SBATCH -p parallel
  #SBATCH --nodes=2
  #SBATCH -C node_type=10GethAny
  #SBATCH --exclusive

  source /etc/profile
  module add ansys/21.2

  echo $MYHOSTLIST

  cfx5solve -batch -def mymodel.def -par-dist "$MYHOSTLIST" \
      -start-method "Open MPI Distributed Parallel"
::

where mymodel.def is the name of the Solver Input File. Ansys uses 
MPI for parallelism - see Using the Message Passing Interface (MPI) 
on the HEC for more details on MPI job scripts.

A sample parallel job script for fluent for Ansys 19 or earlier
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

For models suitable for parallel running, the following parallel 
job template can be used:

.. code-block:: sh

  #!/bin/bash

  #SBATCH -p parallel
  #SBATCH --nodes=2
  #SBATCH --exclusive
  #SBATCH -C node_type=10Geth64G

  source /etc/profile
  module add ansys/19.1

  fluent 3ddp -g -slurm -t${NSLOTS} -pdefault -i runjob.jou
::

Where runjob.jou is the name of your fluent journal file. Ansys
uses MPI for parallelism - see Using the Message Passing Interface 
(MPI) on the HEC for more details on MPI job scripts.

A sample parallel job script for fluent for Ansys 20 and later
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

For models suitable for parallel running, the following parallel 
job template can be used:

.. code-block:: sh

  #!/bin/bash

  #SBATCH -p parallel
  #SBATCH --nodes=2
  #SBATCH --exclusive
  #SBATCH -C node_type=10Geth64G

  source /etc/profile
  module add ansys/21.2

  scontrol show hostnames > $TMPDIR/fluent.hosts

  fluent 3ddp -g -t ${NSLOTS} -cnf=$TMPDIR/fluent.hosts -mpi=intel -i runjob.jou
::

Where runjob.jou is the name of your fluent journal file. Ansys 
uses MPI for parallelism - see Using the Message Passing Interface 
(MPI) on the HEC for more details on MPI job scripts.

Further Reading
~~~~~~~~~~~~~~~

Further information be found on `The Official Ansys Home Page <http://www.ansys.com/>`_