diff --git a/bench/GPU/README b/bench/GPU/README
index a85d6302ba..03aeaf8ef9 100644
--- a/bench/GPU/README
+++ b/bench/GPU/README
@@ -20,10 +20,10 @@ summary description.
 ------------------------------------------------------------------------
 
 If the script has "cpu" in its name, it is meant to be run in CPU-only
-mode.  For example:
+mode (without using the GPU or USER-CUDA styles).  For example:
 
-mpirun -np 1 ../lmp_linux_double -c off -v x 8 -v y 8 -v z 8 -v t 100 < in.lj.cpu
-mpirun -np 12 ../lmp_linux_double -c off -v x 16 -v y 16 -v z 16 -v t 100 < in.lj.cpu
+mpirun -np 1 ../lmp_linux_double -v x 8 -v y 8 -v z 8 -v t 100 < in.lj.cpu
+mpirun -np 12 ../lmp_linux_double -v x 16 -v y 16 -v z 16 -v t 100 < in.lj.cpu
 
 The "xyz" settings determine the problem size.  The "t" setting
 determines the number of timesteps.
@@ -33,9 +33,9 @@ determines the number of timesteps.
 If the script has "gpu" in its name, it is meant to be run using
 the GPU package.  For example:
 
-mpirun -np 12 ../lmp_linux_single -sf gpu -c off -v g 1 -v x 32 -v y 32 -v z 64 -v t 100 < in.lj.gpu
+mpirun -np 12 ../lmp_linux_single -sf gpu -v g 1 -v x 32 -v y 32 -v z 64 -v t 100 < in.lj.gpu
 
-mpirun -np 8 ../lmp_linux_mixed -sf gpu -c off -v g 2 -v x 32 -v y 32 -v z 64 -v t 100 < in.lj.gpu
+mpirun -np 8 ../lmp_linux_mixed -sf gpu -v g 2 -v x 32 -v y 32 -v z 64 -v t 100 < in.lj.gpu
 
 The "xyz" settings determine the problem size.  The "t" setting
 determines the number of timesteps.  The "np" setting determines how
@@ -49,9 +49,9 @@ than GPUs (both per compute node) with the GPU package.
 If the script has "cuda" in its name, it is meant to be run using
 the USER-CUDA package.  For example:
 
-mpirun -np 1 ../lmp_linux_single -sf cuda -v g 1 -v x 16 -v y 16 -v z 16 -v t 100 < in.lj.cuda
+mpirun -np 1 ../lmp_linux_single -c on -sf cuda -v g 1 -v x 16 -v y 16 -v z 16 -v t 100 < in.lj.cuda
 
-mpirun -np 2 ../lmp_linux_double -sf cuda -v g 2 -v x 32 -v y 64 -v z 64 -v t 100 < in.eam.cuda
+mpirun -np 2 ../lmp_linux_double -c on -sf cuda -v g 2 -v x 32 -v y 64 -v z 64 -v t 100 < in.eam.cuda
 
 The "xyz" settings determine the problem size.  The "t" setting
 determines the number of timesteps.  The "np" setting determines how