Remove single-dimension limitation from GPU halo exchange
Allows GPU halo exchange to be active when the number of dimensions is greater than 1, thus simplifying the codepath logic.
Partly addresses #3370 (closed)
Edited by Szilárd Páll
Allows GPU halo exchange to be active when the number of dimensions is greater than 1, thus simplifying the codepath logic.
Partly addresses #3370 (closed)