Due　to　the　rapid　development　of　deep　learning　(DL)　has　brought,　artificial　intelligence　(AI)　chips　were　invented　incorperating　the　traditional　computing　architecture　with　the　simulated　neural　network　structure　for　the　sake　of　improving　the　energy　efficiency.　Recently,　emerging　deep　learning　AI　chips　imposed　the　challenge　of　allocating　computing　resources　according　to　a　deep　neural　networks　(DNN),　such　that　tasks　using　the　DNN　can　be　processed　in　a　parallel　and　distributed　manner.　In　this　paper,　we　combine　graph　theory　and　combinatorial　optimization　technology　to　devise　a　fast　floorplanning　approach　based　on　kernel　graph　structure,　which　is　provided　by　Cerebras　Systems　Inc.　for　mapping　the　layers　of　DNN　to　the　mesh　of　computing　units　called　Wafer-Scale-Engine　(WSE).　Numerical　experiments　were　carried　out　to　evaluate　our　method　using　the　public　benchmarks　and　evaluation　criteria,　demonstrating　its　performance　gain　comparing　to　the　state-of-art　algorithms.