Running scalability tests for itasca and impi
Fixed the g2l map bug. It was off-by-one because I subtract off when access g2l() and also had it subtract when writing to disk. now its correct
IMPI strong scaling on 160^3 (4.096 million nodes)
Strong scaling should work for 1 proc now
simulated rk4
Fixed bug in strong scaling test
Merged strong_scaling script
Added timer for SpMV+comm, Iteration Total so I can see scaling of iterations with and without comm present
Merge branch 'master' of github.com:bollig/rbffd_gpu into ompi_itasca