Brusselator SST performance issue
Created by: pnorbert
Analysis code using SST is much slower with this example than to read from files. Same issue on VM and on Titan.
$ mpirun -n 16 ./simulation/Brusselator bru.bp 32 32 32 100 1
$ time mpirun -n 4 ./analysis/norm_calc bru.bp a.bp 0
VM:
BP SST/FFS SST/BP
0.7s 14s 19s
Titan, with 256^3, 100 steps, 64 writers + 64 readers: File based: a few minutes SST based: does not finish within an hour. Also steps are slowing down visibly.