LS-DYNA® Best-Practices: Networking, MPI and Parallel File System Effect on LS-DYNA Performance
نویسندگان
چکیده
From concept to engineering, and from design to test and manufacturing, the automotive industry relies on powerful virtual development solutions. CFD and crash simulations are performed in an effort to secure quality and accelerate the development process. The recent trends in cluster environments, such as multi-core CPUs, GPUs, cluster file systems and new interconnect speeds and offloading capabilities are changing the dynamics of clusteredbased simulations. Software applications are being reshaped for higher parallelism and multi-threads, and hardware configuration for solving the new emerging bottlenecks, in order to maintain high scalability and efficiency. In this paper we cover best practices for achieving maximum productivity through MPI optimizations, efficient networking utilization and usage of parallel file systems.
منابع مشابه
Fujitsu’s Activities in Improving Performance of LS-DYNA Nonlinear Finite Element Analysis Software
The LS-DYNA nonlinear finite element analysis software package developed for structural analysis by the Livermore Software Technology Corporation (LSTC) is widely used by the automobile, aerospace, construction, military, manufacturing, and bioengineering industries. Fujitsu has been a partner with LSTC since 1996, supporting customers in Japan. A common application of LS-DYNA is car crash simu...
متن کاملMPI Optimizations via MXM and FCA for Maximum Performance on LS-DYNA®
From concept to engineering, and from design to test and manufacturing, the automotive industry relies on powerful virtual development solutions. CFD and crash simulations are performed in an effort to secure quality and accelerate the development process. The recent trends in cluster environments, such as multi-core CPUs, GPUs, cluster file systems and new interconnect speeds and offloading ca...
متن کاملPerformance of the Hybrid LS-DYNA on Crash Simulation with the Multicore Architecture
Using crash simulation models, we investigate the multicore performance of the newly developed hybrid LS-DYNA, a method whose speedup arises from both shared-memory and message-passing parallelisms. Theoretically, the hybrid method gains performance advantages over the traditional, message-passing-parallel (MPP) LS-DYNA for two reasons. First, the addition of shared-memory parallelism to the me...
متن کاملPre-processor Software for Calibration of LS-DYNA Material Models
LS-DYNA contains a wealth of material models that allow for the simulation of transient phenomena. These models are often quite complex and difficult to calibrate. We present CAE Modeler, a generalized pre-processor software used to convert material property data into material parameters for different material models used in CAE. In this paper, CAE Modeler is used to streamline the conversion o...
متن کاملModeling & Comparison of Mechanical Behavior of Foam Filled & Hollow Aluminum Tubes by LS-DYNA & Introducing a Neural Network Model
Energy absorption capability of thin-walled structures with various cross sections has been considered by researchers up to now. These structures as energy absorbers are used widely in different industries such as automotive and aerospace and protect passengers and goods against impact. In this paper, mechanical behavior of thin-walled aluminum tubes with and without polyurethane foam filler su...
متن کامل