Reduce allocations for 3D Arrays

I think for the initial program because it has 136 equations and it needs to calculate the common part many times so that it has a long run time. But I didn’t, maybe I should. if you are interested see this link,

https://discourse.julialang.org/t/reduce-allocations-increase-the-running-speed-for-large-scale-odes-136-equations/89253