National Center for Supercomputing Applications Overview of Engineering User Support at NCSA Seid Koric Ph.D. Engineering Applications Analyst

National Center for Supercomputing Applications Think Big ! Supercomputing in Engineering ? “It is amazing what one can do these days on a dual-core laptop computer. Nevertheless, the appetite for more speed and memory, if anything is increasing. There always seems to be some calculations that ones wants to do that exceeds available resources. It makes one think that computers have and will always come in one size and one speed: “Too small and too slow”. This will be the case despite supercomputers becoming the size of football fields !” Tom Hughes, President of International Association for Computing Mechanics-IACM

National Center for Supercomputing Applications Key Objectives Provide user support and consulting for engineering users allocated to NCSA Teragrid machines, helping them to use commercial engineering software or in-house codes effectively, and to solve large engineering problems Maintain web pages for supported software Actively engaged in testing new NCSA and Teragrid computational resources with emphasis on engineering software and applications Giving technical presentations about Teragrid computational resources and projects, disseminate emerging engineering related information and technologies

National Center for Supercomputing Applications Supported Engineering Software > 150.edu,.gov, and.com engineering users, coast to coast Abaqus (Implicit SMP,MPI; Explicit,MPI) Ansys with Multiphysics (SMP,MPI) LS-DYNA (SMP, MPI) MSC.Nastran (MPI, SMP) MSC.Marc (MPI) MSC.Patran Fluent/Fidap(MPI,SMP) Gambit GASP (MPI) Various in house engineering codes and libraries

National Center for Supercomputing Applications Some examples of recent engineering project collaborations Not a short term daily question-answer type of user support PI usually requested a specific NCSA stuff with appropriate background (not only porting/debugging) Lasted between one week to one year Some collaborations involved traveling to/from NCSA to alleviate communication barriers Mostly funded from general NSF user support, or NCSA PSP funds Usually successful outcome sometimes with a journal or a conference publication

National Center for Supercomputing Applications Dynamic Analysis of Centrifuge Shake Table System (9 m. radius, 50 g) NEES Grid Project: Collaboration with University of California, Davis (Centrifuge provides increased gravitational acceleration to produce self weight stresses) Looking for dynamics loads on spindle bearings and bucket structure for bearing life calculations –Static Step with centrifugal and gravitational loads applied –Natural Frequency Extraction (200 modes) –Dynamic Loading Analysis with modal superposition

National Center for Supercomputing Applications DNS Simulation of Turbulent Combustion on Abe Courtesy of Prof. C. Pantano, MeSci, UIUC

National Center for Supercomputing Applications Comparison of Implicit (quasi-static) and Explicit (dynamic) coupled thermo-mechanical models of solidification

National Center for Supercomputing Applications Evaluation of Linear Solvers in Computational Mechanics Global stiffness matrices and rhs extracted from Nastran Solve systems using major direct and iterative parallel solvers and evaluate their accuracy, robustness, and efficiencies on different HPC platforms.

National Center for Supercomputing Applications Cell Phone Drop Test Simulation Abaqus Explicit Solver, General Contact Algorithm, Floor as a Rigid Body Courtesy of Simulia and Motorola Inc.

National Center for Supercomputing Applications Acknowledgements Dr. Ahmed Taha, NCSA CFD Support Dr Lars Pedersen, U of California Davis Prof. Brian G. Thomas and Carlos Rubino Pantano, MeSci, U of ILL Simulia Inc. and Motorola Inc.