000021607 001__ 21607
000021607 005__ 20170622131254.0
000021607 04107 $$aeng
000021607 046__ $$k2017-06-15
000021607 100__ $$aBelyi, Mikhail
000021607 24500 $$aHIGH PERFORMANCE CPU-GPU FREQUENCY RESPONSE ANALYSIS

000021607 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021607 260__ $$bNational Technical University of Athens, 2017
000021607 506__ $$arestricted
000021607 520__ $$2eng$$aSolution of the linear dynamics problems in the frequency domain for damped finite element models of engineering systems requires solving systems of complex linear algebraic equations with millions equations for many excitation frequency values. Direct or iterative solution at each frequency is not usually feasible because of the computational cost. Mode-superposition method is widely used for solving large-scale linear dynamics problems. It includes extraction of the natural modes of vibration and solving the reduced system of equations of motion in the frequency domain. However, in practical engineering simulations such reduced systems of equations can have tens of thousands of complex linear equations and hundreds of the right hand sides associated with multiple load cases. Thus, solving for thousands of excitation frequencies still can be costly. We present high performance algorithms for solving large scale linear dynamic problems in the frequency domain including the AMS eigensolver and the modal frequency response solver. We discuss scalable parallel implementation of the solution algorithms for symmetric multiprocessing systems and the hybrid approach based on using multiple graphic processors (GPU) and multiple CPU threads. We present several examples of the frequency response calculation for the large-scale linear dynamic simulations. We will demonstrate that the scalable linear dynamics solvers implemented in Abaqus enable effective large-scale frequency-domain dynamic simulations, “mid-frequency” range using traditional finite element approach.

000021607 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021607 653__ $$a

000021607 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021607 720__ $$aBelyi, Mikhail$$iLarionov, Andrey
000021607 8560_ $$ffischerc@itam.cas.cz
000021607 8564_ $$s116422$$uhttps://invenio.itam.cas.cz/record/21607/files/17223.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS10] Advances in Numerical Methods for Linear and Non-Linear Dynamics and Wave Propagation
.
000021607 962__ $$r21500
000021607 980__ $$aPAPER