GPU package dose not really speed

[Tom_lammps]

For the error “Cannot use neigh_modify exclude with GPU neighbor builds”
i google our MATSCI community discourse, there is people has same problem;

Cannot use neigh_modify exclude with GPU neighbor builds

Dear LAMMPS users, I have a system in which I define a sphere where events take place. Around this sphere, there are atoms that are supposed to be “frozen”. As it is indicated in the user’s manual, it is possible, in order to avoid needless calculations, to use group exclude command. This should turn off calculations of pairwise interactions between atoms in the region around the sphere. To do so I proceeded as follows: Definition of the sphere region spheremin sphere 0. 0. 0. 15.0 group sph…

he stated" I could solve it with package gpu 2 neigh no. Now the neighbour list is built on the CPU instead of the GPU." therefore i assume this could be a option to figure this out