[Beowulf] Visualization toolkit to monitor scheduler performance

[John Hearns]

That's a good question.

PBS are promoting PBS Analytics http://www.pbsgridworks.com/Product.aspx?id=7
and SGE has Arco http://wikis.sun.com/display/GridEngine/Installing+ARCo
If I have it right, both of these work by accumulating information
about completed jobs.
I may be wrong, and would like to see Analytics working (hint - I have tried).

Your question about displaying blocks of empty nodes is interesting.
I guess in PBS you would run 'pbsnodes' and look for the free ones!