and low/high half after each other, then simply doing a gather for tab_coul_F and tab_coul_F+1.
The ording of the 16 elements doesn't matter, so it doesn't help to get FD sorted as odd/even
instead of low/high.
-*/
+ */
static gmx_inline void
load_table_f(const real *tab_coul_F, gmx_epi32 ti_S, int *ti,
gmx_mm_ps *ctab0_S, gmx_mm_ps *ctab1_S)