All documentation on build chains on the TeamCity and also their blog postings deals with simples setup that don't expose the more complex setups that you may encounter in real life which brings me to the following question.
I have the need for a few more complex setups:
A--\ /--D--\
C F
B--/ \--E--/
Ideally A & B and D & E would run concurrently on different build nodes.
A--\C/--E
B--/D\--F
In the above A & B run concurrent, as do C & D but C & D are only triggered if both A & B pass, the same goes for E & F they run concurrent, but only if both C & D pass.
/-- B --\
A D
\-- C --/
Ideally B & C should run in parallel on different nodes.
However TeamCity refuses to do this and all builds are un sequentially on a single build node which is highly annoying because it blows build times out of the water.
I've tried various combinations of Snapshot dependencies and Finish build trigger to no avail, TeamCity refuses to run any steps parallel.