Catkin Command Line Tools

Note: This is an experimental feature which might not always work.

Short reasoning behind this (just skip):

Catkin can be a little slow for two reasons:

• Catkin processes the dependencies of your workspace before starting to build the actual packages.
• Catkin parallelizes the build of object files inside a package, but does not build packages in parallel.

One reason for that is that catkin creates a single make target for all packages in your source space. A new command called catkin-make-isolated builds each package in the workspace individually, calling cmake, make etc (cmi ROS). This can be parallelized better. Parallel-catkin-make-isolated (pcmi) resolves dependencies on the fly and builds packages individually and in parallel can therefore speed up your build times significantly.

pcmi is part of the catkin-tools, which is the preferred way of building catkin workspaces.

Documentation of catkin-tools

Can be found here.

Good to know commands of catkin

• catkin build: Verb for building a catkin workspace <commands/catkin_build>
• catkin list: Verb for finding and listing information about catkin packages <commands/catkin_list>

How to install pcmi as part of catkin-tools:

cd /tmp
git clone https://github.com/catkin/catkin_tools.git
cd catkin_tools
sudo python setup.py install

From now on you can issue a parallel catkin_make by using the command catkin build where you have used catkin_make before, e.g.:

cd $CATKIN_WS
catkin build