added ISC14 slides
OpenMP 3.1 reduction check
separated reference and communication-avoiding smoothers.  replaced macro with functions for stencil properties.  unified timers.  Open MPI job examples for carver
communication aggregation smoothers
Merge branch 'master' of bitbucket.org:hpgmg/hpgmg
modified ISC slides
unified timers
carver job script
timers
modified job scripts
Merge branch 'master' of https://bitbucket.org/hpgmg/hpgmg

updated job script, updated timers, etc...
mpi tags
MPI compliance, unified timers
fixed comment
fe test: add prove target
fe: add comments about local data model
Merge branch 'jed/fe-data-model'

* jed/fe-data-model:
  fe: add comments about local data model
  fe test: add prove target
fe: avoid FP exception from computing log2(0) in convergence test
alternate version of exchange boundary that breaks up large messages
Merge branch 'master' of https://bitbucket.org/hpgmg/hpgmg