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====================================
Time, Accuracy, Speed Analysis (TAS)
====================================
.. highlight:: none
Below is the guide to running TAS using ex13, which is a Poisson Problem in 2D and 3D with Finite Elements:
1. Compile ``ex13.c``
a. This example source file, and the corresponding ``makefile`` are located in ``PETSC_DIR/src/snes/tutorials/``
b. Compile with the command:
.. code-block:: console
$ make ex13
2. Run ex13 with the following command:
.. code-block::
mpiexec -n 2 ./ex13 -log_view :/home/<user name>/PETSC_DIR/lib/petsc/bin/ex_13_test.py:ascii_info_detail \
-dm_distribute \
-dm_plex_box_faces 8,8 \
-potential_petscspace_degree 1 \
-snes_convergence_estimate \
-convest_num_refine 5
3. A log file in the above directory called ``ex_13_test.py`` should now be present. This is also the same directory that contains the TAS python3 script ``petsc_tas_analysis.py``
4. Now run ``petsc_tas_analysis.py``:
.. code-block::
./petsc_tas_analysis.py -f ex_13_test
5. You should see something similar to the following in your terminal window:
.. literalinclude:: exampleTASOutPut.txt
6. Finally the graphs will appear in the subdirectory ``graphs/``
For more detailed help in using TAS:
1. See detailed user's guide
2. On the command line use ``./petsc_tas_analysis.py -h``
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