Rather than use voteToHalt, you could add an Aggregator that kept track
of the "alive vertices" and then you can use an Aggregator to store/set
your configuration value that the Master computation can modify. Do the
logic in the Master computation and all should be well.
Avery
On 6/3/13 10:04 PM, David Gainer wrote:
I have an algorithm where I'd like to iterative over the vertices with
a configuration variable set to some value. Then, when all the
vertices vote to halt, I'd like to reduce the configuration variable
and repeat the inner iteration until some threshold of the
configuration variable is reached. I was wondering what the natural
way of programming that would be. It seems like a master Computing
situation -- but I didn't see any method for un-halting vertices. I
also wasn't sure when A vertex would ever be able to call its own
wakeup function.
Thanks,
David
