The source of CP2K is open and freely available for everybody under the GPL license.

Installation instructions can be found on the wiki and in the INSTALL file which is part of the download.

The sparse matrix library DBCSR is part of CP2K, and made available standalone at the DBCSR homepage.

Looking at the version history might help you to decide.

Sources of released versions are available at our sourceforge project page. Alternatively, precompiled single node, optimised CP2K versions for Linux with or without OpenMP support are available as well.

• Debian/Ubuntu alternative: http://packages.mccode.org/
• Windows: https://github.com/brhr-iwao/CP2K_for_Windows

The latest and all prior versions are available from the CP2K SVN repository.

Check out only a needed branch (the branch will then be in cp2k/cp2k).

• current trunk:

  svn checkout http://svn.code.sf.net/p/cp2k/code/trunk cp2k

• the cp2k-4_1-branch:

  svn checkout http://svn.code.sf.net/p/cp2k/code/branches/cp2k-4_1-branch cp2k

• the cp2k-3_0-branch:

  svn checkout http://svn.code.sf.net/p/cp2k/code/branches/cp2k-3_0-branch cp2k

• the cp2k-2_6-branch:

  svn checkout http://svn.code.sf.net/p/cp2k/code/branches/cp2k-2_6-branch cp2k

• the cp2k-2_5-branch:

  svn checkout http://svn.code.sf.net/p/cp2k/code/branches/cp2k-2_5-branch cp2k

• the cp2k-2_4-branch:

  svn checkout http://svn.code.sf.net/p/cp2k/code/branches/cp2k-2_4-branch cp2k

• the cp2k-2_3-branch:

  svn checkout http://svn.code.sf.net/p/cp2k/code/branches/cp2k-2_3-branch cp2k

• the cp2k-2_2-branch:

  svn checkout http://svn.code.sf.net/p/cp2k/code/branches/cp2k-2_2-branch cp2k

These branches can be updated to their latest version in the following way:

cd cp2k/cp2k
svn update

Alternatively, you may restrict the download to the folder cp2k/cp2k containing source code, tools, and test inputs, e.g. for the trunk version use

svn checkout http://svn.code.sf.net/p/cp2k/code/trunk/cp2k cp2k

Analogous checkouts work for the branch versions.

The Subversion (svn) program must be installed on your machine for this to work.

CP2K's official SVN repository is mirrored at GitHub. The mirror is automatically synced with SVN every 5 minutes.

If you have Git (command git) installed, you can clone the CP2K GitHub repository with

git clone https://github.com/cp2k/cp2k.git

Afterwards, to update to latest version (pull new commits)

cd cp2k
git pull

This is a read-only copy, so pull requests are not accepted via GitHub. See information for developers on how to contribute patches.