Abstract: The set of equations for RT instability of 3D laser ablation is presented and the numerical method is introduced briefly.The parallel technology and the method are developed according to the physical nature and numerical algorithm of the problem that we discuss.The parallel efficiency is 75%.The numerical simulations on 3D multi-mode laser ablative RT instability are also presented,which deepen the knowledge on the evolution of nonlinear 3D ablative RT instability.

Key words: Inertial Confinement Fusion (ICF), laser ablative instability, parallel computation of 3D multimode, parallel efficiency