DATA-PARALLEL COMPUTATION FOR THERMOVISCOELASTIC ANALYSIS OF COMPOSITE STRUCTURES

Data parallel implementation of the thermo-viscoelastic finite element algorithm with a conjugate gradient (CG) method on the CM-5 is presen ted. The performance study of thermo-viscoelastic finite element proce dures on massively parallel processing machines is conducted. Parametr ic studies on the CM-5 as well as the GRAY Y-MP and benchmarks for sev eral problem sizes are shown. The performance of the conjugate gradien t method on the GRAY Y-MP and CM-5 is evaluated and is compared with o nes of the GRAY sparse matrix and the Feable solvers. Using the nine-n ode isoparametric shell element and 256-processor CM-5, a speed-up fac tor of about 18 over the GRAY Y-MP was obtained for calculating 160 00 0 element stiffness matrices at a rate of 3 . 29 Gflops. As for the CG method, the CM-5 out-performed the GRAY Y-MP by a factor of 7 for sol ving 320 800 equations. Copyright (C) 1996 Civil-Comp Limited and Else vier Science Limited