Before revision:  The avoidance of any branching statement is of use in optimal GPU computations {\it  , and we give example of branch-free normal quantiles that offer performance improvements in a GPU environment, while retaining the  precision characteristics of well-known methods.
After revision:  The avoidance of any branching statement is of use in optimal GPU computations {\it warp divergence , and we give example of branch-free normal quantiles that offer performance improvements in a GPU environment, while retaining the precision characteristics of well-known methods.