			These example scripts can be run with the USER-CUDA package, assuming
			you built LAMMPS with the package and the precision you want.

			You can run any of the scripts as follows. You can also reset the
			x,y,z variables in the command line to change the size of the problem.

			With the GPU package on 1 GPU:

			lmp_machine -sf gpu < in.gpu.melt.2.5
			mpirun -np 8 lmp_machine -sf gpu < in.gpu.phosphate

			With the GPU package on 2 GPUs:

			mpirun -np 4 lmp_machine -sf gpu -pk gpu 2 tpa 8 < in.gpu.melt.5.0
			mpirun -np 12 lmp_machine -sf gpu -pk gpu 2 < in.gpu.rhodo

			CPU-only:

			lmp_machine < in.gpu.melt.2.5
			mpirun -np 4 lmp_machine < in.gpu.melt.5.0
			mpirun -np 8 lmp_machine < in.gpu.rhodo

			Note that with the GPU package you can have more MPI tasks
			than the number of GPUs (both per node).

			Also note that when running the in.gpu.melt.5.0 problem on the GPU,
			which has a long cutoff, the package gpu "tpa" setting should be > 1
			(e.g. 8) for best performance.

lammps/examples/gpu/README
978269a4cedclammm-devel

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