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Download And Build
==================
.. _sec:tutorials_download_and_build:
First, you need to clone the ADIOS2 repository. You can do this by running the following command:
.. code-block:: bash
git clone https://github.com/ornladios/ADIOS2.git ADIOS2
.. note::
ADIOS2 uses `CMake <https://cmake.org/>`_ for building, testing and installing the library and utilities.
So you need to have CMake installed on your system.
Then, create a build directory, run CMake, and build ADIOS2:
.. code-block:: bash
cd ADIOS2
mkdir build
cd build
cmake -DADIOS2_USE_MPI=ON ..
cmake --build .
.. note::
If you want to know more about the ADIOS2's CMake options, see section
:ref:`CMake Options <sec:source_cmake_options>`.
All the tutorials that we will explore are existing ADIOS2 examples located in the ``ADIOS2/examples`` directory.
To build any of the examples, e.g. the ``helloWorld`` example, you can run the following commands:
.. code-block:: bash
cd Path-To-ADIOS2/examples/hello/helloWorld
mkdir build
cd build
cmake -DADIOS2_DIR=Path-To-ADIOS2/build/ ..
cmake --build .
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