LS-DYNA MPP的基本架构与演进.pdf

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LS-DYNA/MPP 鐨

鍩烘湰鏋舵瀯涓庢紨杩 Outline

鈥 LSDYNA/MPP Explicit Implementation

鈥 HYBRID

鈥 Dynamic Rebalance

鈥 User Defined REDECOMP

LSDYNA/MPP Explicit Implementation 4 CORES MPP (MIMD) Explicit time loop Process Elements Sync dt Contact MPI LAN Constraints CORE $ $ $ $ Update Nodes Rank 0 1 2 3 鈥 Problem fits in real memory (in core) 鈥 Element : internal force(CPU, memory bounded, high data reuse rate and $ friendly) 鈥 Time marching with time step size limiter (Sync point) 鈥 Contact: external force(CPU, memory, network bandwidth bounded)

Default Decomposition 鈥 Base on initial geometry 鈥 Use element type, material model, integration points, etc. to estimate total cost of the model 鈥 Subdivide the domain with equal cost using Recursive Coordinates Bisection 鈥 Additional options allow user to manipu

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