Strong scaling performance, Free benchmark, SandyBridge, 8M particles
Performance in millions of particle-timesteps / second / node

Nodes	CPU (mpi)	Kokkos/OMP (mpi,thread)	Kokkos/serial (mpi)
1	151.2 (16)	132.5 (8,2)	132.9 (16)
2	187.6 (16)	107.5 (8,2)	174.2 (16)
4	227.7 (16)	191.8 (8,2)	212.8 (16)
8	252.6 (16)	198.5 (8,2)	231.1 (16)
16	251.7 (16)	196 (8,2)	266.4 (16)
32	272.1 (16)	252.5 (8,2)	232.5 (16)
64	257.7 (16)	165.2 (8,2)	262.9 (16)

Run commands and logfile links for column CPU

1	mpirun -n 16 -N 16 --bind-to core spa_chama_cpu -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=cpu.kind=strong.size=8M.node=1.mpi=16
2	mpirun -n 32 -N 16 --bind-to core spa_chama_cpu -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=cpu.kind=strong.size=8M.node=2.mpi=16
4	mpirun -n 64 -N 16 --bind-to core spa_chama_cpu -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=cpu.kind=strong.size=8M.node=4.mpi=16
8	mpirun -n 128 -N 16 --bind-to core spa_chama_cpu -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=cpu.kind=strong.size=8M.node=8.mpi=16
16	mpirun -n 256 -N 16 --bind-to core spa_chama_cpu -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=cpu.kind=strong.size=8M.node=16.mpi=16
32	mpirun -n 512 -N 16 --bind-to core spa_chama_cpu -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=cpu.kind=strong.size=8M.node=32.mpi=16
64	mpirun -n 1024 -N 16 --bind-to core spa_chama_cpu -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=cpu.kind=strong.size=8M.node=64.mpi=16

Run commands and logfile links for column Kokkos/OMP

1	mpirun -n 8 -N 8 --bind-to socket spa_chama_kokkos_omp -sf kk -k on t 2 -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_omp.kind=strong.size=8M.node=1.mpi=8.thread=2
2	mpirun -n 16 -N 8 --bind-to socket spa_chama_kokkos_omp -sf kk -k on t 2 -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_omp.kind=strong.size=8M.node=2.mpi=8.thread=2
4	mpirun -n 32 -N 8 --bind-to socket spa_chama_kokkos_omp -sf kk -k on t 2 -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_omp.kind=strong.size=8M.node=4.mpi=8.thread=2
8	mpirun -n 64 -N 8 --bind-to socket spa_chama_kokkos_omp -sf kk -k on t 2 -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_omp.kind=strong.size=8M.node=8.mpi=8.thread=2
16	mpirun -n 128 -N 8 --bind-to socket spa_chama_kokkos_omp -sf kk -k on t 2 -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_omp.kind=strong.size=8M.node=16.mpi=8.thread=2
32	mpirun -n 256 -N 8 --bind-to socket spa_chama_kokkos_omp -sf kk -k on t 2 -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_omp.kind=strong.size=8M.node=32.mpi=8.thread=2
64	mpirun -n 512 -N 8 --bind-to socket spa_chama_kokkos_omp -sf kk -k on t 2 -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_omp.kind=strong.size=8M.node=64.mpi=8.thread=2

Run commands and logfile links for column Kokkos/serial

1	mpirun -n 16 -N 16 --bind-to core spa_chama_kokkos_serial -sf kk -k on -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_serial.kind=strong.size=8M.node=1.mpi=16
2	mpirun -n 32 -N 16 --bind-to core spa_chama_kokkos_serial -sf kk -k on -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_serial.kind=strong.size=8M.node=2.mpi=16
4	mpirun -n 64 -N 16 --bind-to core spa_chama_kokkos_serial -sf kk -k on -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_serial.kind=strong.size=8M.node=4.mpi=16
8	mpirun -n 128 -N 16 --bind-to core spa_chama_kokkos_serial -sf kk -k on -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_serial.kind=strong.size=8M.node=8.mpi=16
16	mpirun -n 256 -N 16 --bind-to core spa_chama_kokkos_serial -sf kk -k on -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_serial.kind=strong.size=8M.node=16.mpi=16
32	mpirun -n 512 -N 16 --bind-to core spa_chama_kokkos_serial -sf kk -k on -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_serial.kind=strong.size=8M.node=32.mpi=16
64	mpirun -n 1024 -N 16 --bind-to core spa_chama_kokkos_serial -sf kk -k on -pk kokkos reduction parallel/reduce comm classic -v x 128 -v y 80 -v z 80 -v t 100 -in in.free.steps -log log.sparta.date=23Dec17.model=free.machine=chama.pkg=kokkos_serial.kind=strong.size=8M.node=64.mpi=16