Use a constant size for the copy

galumph/cl-src/rotate-alm.cl.c

@@ -223,7 +223,7 @@ __kernel void rotate_alm(__global const cfloat_t *restrict alm,
   event_t ev = 0;
 
   const size_t i_L00_dlmm = (L + 1) * (4*L*L - L) / 6;
-  const size_t dlmm_local_size = (L + 1) * (2*L + 1);
+  const size_t dlmm_local_size = (LMAX+1) * (2*LMAX+1);
   ev = async_work_group_copy(dlmm_local, dlmm_global + i_L00_dlmm,
                              dlmm_local_size, ev);
   wait_group_events(1, &ev);