.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "examples\gallery_examples\001_initialize_server_and_deal_with_license.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_examples_gallery_examples_001_initialize_server_and_deal_with_license.py>`
        to download the full example code.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_examples_gallery_examples_001_initialize_server_and_deal_with_license.py:


.. _initialize_server_and_deal_with_license:

Initialize PyAnsys Sound and check out the license
--------------------------------------------------

This example shows how to initialize PyDPF-Core, load DPF Sound, and check out the
required Ansys license (``increment avrxp_snd_level1``) only once. It also shows
how to connect to the DPF server, verify where it is located, and get other useful
information.

This example also demonstrates the use of the LicenseContextManager, a mechanism that lets you
check out the license only once for the duration of the session, which greatly improves performance.
It shows the execution time of a simple DPF Sound operator when you do not use the
LicenseContextManager versus when you do use it.

**Prerequisites**

Ensure that you have installed PyDPF-Core and DPF Sound according to procedures in
the PyDPF-Core documentation:

- If you have installed the latest Ansys release, see `Install using pip
  <https://dpf.docs.pyansys.com/version/stable/getting_started/install.html#installation>`_.
- If you want to use the DPF standalone version, see `Install DPF Server
  <https://dpf.docs.pyansys.com/version/stable/getting_started/dpf_server.html#dpf-server>`_.

.. GENERATED FROM PYTHON SOURCE LINES 53-56

Perform required imports
~~~~~~~~~~~~~~~~~~~~~~~~
Perform the required imports:

.. GENERATED FROM PYTHON SOURCE LINES 56-65

.. code-block:: Python


    # Load Ansys and other libraries.
    import datetime

    from ansys.sound.core.examples_helpers import download_flute_wav
    from ansys.sound.core.server_helpers import connect_to_or_start_server
    from ansys.sound.core.signal_utilities import LoadWav









.. GENERATED FROM PYTHON SOURCE LINES 69-76

Use a DPF server without a LicenseContextManager
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Initialize a DPF server without using a LicenseContextManager.

**Note**: When ``use_license_context=False``, the license is checked out each time
you use a DPF Sound operator.

.. GENERATED FROM PYTHON SOURCE LINES 76-90

.. code-block:: Python



    # Connect to a remote server or start a local server without using a LicenseContextManager
    print("Connecting to the server without using a LicenseContextManager")
    my_server, my_license_context = connect_to_or_start_server(use_license_context=False)

    # Check if you are using a local or remote server
    is_server_local = not my_server.has_client()
    print(f"Local server: {is_server_local}")

    # If using a local server, display the path to the server
    if is_server_local == True:
        print(f"Local server path (server variable): {my_server.ansys_path}")





.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    Connecting to the server without using a LicenseContextManager
    Local server: False




.. GENERATED FROM PYTHON SOURCE LINES 91-92

Display information about the server that you are using.

.. GENERATED FROM PYTHON SOURCE LINES 92-94

.. code-block:: Python

    print(f"Server information: {my_server.info}")





.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    Server information: {'server_ip': '172.27.161.234', 'server_port': 50052, 'server_process_id': 1788, 'server_version': '11.0', 'os': 'nt', 'path': None}




.. GENERATED FROM PYTHON SOURCE LINES 95-97

Execute the PyAnsys Sound ``LoadWav`` operator several times in a row
and measure the execution time.

.. GENERATED FROM PYTHON SOURCE LINES 97-113

.. code-block:: Python


    path_flute_wav = download_flute_wav(server=my_server)

    for i in range(5):
        now = datetime.datetime.now()
        wav_loader = LoadWav(path_flute_wav)
        wav_loader.process()
        fc_signal = wav_loader.get_output()
        later = datetime.datetime.now()
        execution_time = later - now
        print(
            f"Elapsed time (loop {i+1}): "
            f"{execution_time.seconds + execution_time.microseconds/1e6}"
            f" seconds"
        )





.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    Elapsed time (loop 1): 10.580335999999999 seconds
    Elapsed time (loop 2): 3.9371650000000002 seconds
    Elapsed time (loop 3): 3.887328 seconds
    Elapsed time (loop 4): 3.8792619999999998 seconds
    Elapsed time (loop 5): 3.8902609999999997 seconds




.. GENERATED FROM PYTHON SOURCE LINES 114-115

Disconnect (shut down) the server.

.. GENERATED FROM PYTHON SOURCE LINES 115-118

.. code-block:: Python

    print("Disconnecting from the server.")
    my_server = None





.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    Disconnecting from the server.




.. GENERATED FROM PYTHON SOURCE LINES 119-126

Use a DPF server with a LicenseContextManager
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Initialize a DPF server using a LicenseContextManager and execute the same code as run previously.

**Note**: The LicenseContextManager is a mechanism that checks out a license increment
when entering the context and releases it when exiting the context.

.. GENERATED FROM PYTHON SOURCE LINES 126-147

.. code-block:: Python


    # Connect to a remote server or start a local server using a LicenseContextManager
    print("Connecting to the server using a LicenseContextManager")
    my_server, my_license_context = connect_to_or_start_server(use_license_context=True)

    # Execute the same and measure the execution time
    path_flute_wav = download_flute_wav(server=my_server)

    for i in range(5):
        now = datetime.datetime.now()
        wav_loader = LoadWav(path_flute_wav)
        wav_loader.process()
        fc_signal = wav_loader.get_output()
        later = datetime.datetime.now()
        execution_time = later - now
        print(
            f"Elapsed time (loop {i+1}): "
            f"{execution_time.seconds + execution_time.microseconds / 1e6}"
            f" seconds"
        )





.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    Connecting to the server using a LicenseContextManager
    Elapsed time (loop 1): 0.149384 seconds
    Elapsed time (loop 2): 0.145274 seconds
    Elapsed time (loop 3): 0.149516 seconds
    Elapsed time (loop 4): 0.13869 seconds
    Elapsed time (loop 5): 0.147305 seconds




.. GENERATED FROM PYTHON SOURCE LINES 148-151

You can see that the execution time is much faster when you use a LicenseContextManager.
This is because when a LicenseContactManager is not used, the license is checked out
each time you use a DPF Sound operator.

.. GENERATED FROM PYTHON SOURCE LINES 153-154

You can release the license increment by deleting the LicenseContextManager object.

.. GENERATED FROM PYTHON SOURCE LINES 154-157

.. code-block:: Python

    print("Releasing the license increment by deleting the LicenseContextManager object.")
    my_license_context = None





.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    Releasing the license increment by deleting the LicenseContextManager object.




.. GENERATED FROM PYTHON SOURCE LINES 158-161

Now that the LicenseContextManager has been deleted, any new call to a PyAnsys Sound function
will spend time checking out the license increment again. Let us call the same function as before
and measure the execution time again:

.. GENERATED FROM PYTHON SOURCE LINES 161-171

.. code-block:: Python

    now = datetime.datetime.now()
    wav_loader = LoadWav(path_flute_wav)
    wav_loader.process()
    fc_signal = wav_loader.get_output()
    later = datetime.datetime.now()
    execution_time = later - now
    print(
        f"Elapsed time: " f"{execution_time.seconds + execution_time.microseconds / 1e6}" f" seconds",
    )





.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    Elapsed time: 3.867432 seconds




.. GENERATED FROM PYTHON SOURCE LINES 172-173

Disconnect (shut down) the server.

.. GENERATED FROM PYTHON SOURCE LINES 173-175

.. code-block:: Python

    print("Disconnecting from the server and releasing the license increment.")
    my_server = None




.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    Disconnecting from the server and releasing the license increment.





.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 34.887 seconds)


.. _sphx_glr_download_examples_gallery_examples_001_initialize_server_and_deal_with_license.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: 001_initialize_server_and_deal_with_license.ipynb <001_initialize_server_and_deal_with_license.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: 001_initialize_server_and_deal_with_license.py <001_initialize_server_and_deal_with_license.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: 001_initialize_server_and_deal_with_license.zip <001_initialize_server_and_deal_with_license.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_