Hi Doug

Yes the workflow instance will execute multiple paths concurrently if there are multiple lines that exit an activity (providing the line rules evaluate to true). So effectively it does "multi-threading" by executing multiple activities at the same time.

Its a bit hard to find any detailed info but the following might help.

http://help.k2.com/en/K2LS-QRS011.aspx

http://help.k2.com/onlinehelp/k2forsharepoint/UserGuide/current/default.htm#Outcomes.htm#tracksearch=parallel

Hi Doug,

I would log a support call to get an official answer from Labs, but below is what I remember. It might have changed.

A process will not span differen threads when executing.

The thread will start with one of the routes and execute everything on that one route until it hits a stopping point.

Stopping points are any rules evaluating to False, Start Rules which start in the future, IPC events and client events.

When the stopping point is hit it will then start processing the next route.

This will continue until all routes are exhausted.

Again, please check with K2 labs, but I think this is what is going on.

It is probably not hard to build a small process to test this out.

Have a parallel activity writing to smartobjects with the timestamp.

Might give some insights.

Regards,

JohanL