complex geometries, it allows to signi cantly reduce the time ... Symposium on Trends in Unstructured Mesh Generation, January 1997. yGraduate Research ...
[1] BANK, R., A. SHERMAN, and A. WEISER: âRefinement algorithms and data ... [8] HENDRICKSON, B. and R. LELAND: âThe CHACO user's guide 1.0â, ...
The benchmark involves the solution of a stylized heat transfer problem in a ... mance of high-performance computer systems, especially parallel machines, ...
to partition unstructured grids so that computational load is balanced and commu- nication is ... The execution time of the algorithms and the quality of the.
The ITAPS center is developing services for unstructured mesh operations .... much smaller compute time where a global partitioning implementation may fail.
tion of a general-purpose, unstructured, tetrahedral adaptivity code for ... of mesh elements are both carried out at run-time, a static compiler analysis.
Huge amounts of data are produced by parallel computations ..... mandatory to define standardized interfaces for the PDE
[12] B. Hendrickson and R. Leland. The Chaco user's guide, ver- sion 2.0. ... [20] R. E. Bank, A. H. Sherman, and A. Weiser. Refinement algorithms and data ...
Jun 20, 2015 - Categories and Subject Descriptors: G.4 [Mathematical Software]: ... man, Imperial College London; email: [email protected] .... needs a single sparse broadcast from dof owners (roots) to dof sharers (leaves), accom-.
The use of unstructured mesh codes on parallel machines can be one of the .... how the partition is mapped down onto its communications network can also play.
optional. Although the steps are the same for structured and unstructured grids as well ... ture part (DDD) and at the u
AbstractâWe present a parallel multigrid method for solving ...... To study the parallel performance of our implementation, we performed strong (fixed-size) and ...
as sequential and parallel computation, programming effort can vary from almost nothing .... the application programmer
Combustion Research and Flow Technology, Inc. (CRAFT Tech). Pipersville ... separation, rocket staging, and missile launch from an ..... removed from the cycle.
In this paper a new grid generation system is presented for the parallel ... The
generation of unstructured surface grids is still ...... Handbook of Grid Generation.
thick materials where the mean free path for radiation is much smaller than a ..... unstructured grid with 6360 hexahedral elements and 160 unknowns per ...
Live/Real Time Three-Dimensional Transesophageal. Echocardiography in Percutaneous Closure of Atrial. Septal Defects. Maneesha Bhaya, M.D.,* Ferit Onur ...
Nov 24, 2012 - Ultrastruct Pathol 26:177â183. Torrent-Guasp F, Kocica MJ, Corno AF, Komeda M, Carreras-Costa F,. Flotats A, Cosin-Aguillar J, Wen H. 2005.
In this reference, auto- matic differentiation ..... This is accomplished using the tech- nique described in ... ing the polynomial degree and the number of control points, a wide range in the ..... demic Press, Inc., San Diego, CA, 1993. 18Golub, G
Dec 9, 2016 - email: [email protected] and [email protected]. 1 ... Additionally, higher order methods decrease the memory ..... Along the same lines, evaluating all monomials of a given order at the same time is cheaper ..... send to and
The iteration count and normalized grind time for 2-D and 3-D are shown in Table 1 where the number of projection vectors ranges from 0 to 50. EBE-JPCG.
grid CFD code (PETSc-FUN3D) by studying the impact of several algorithmic ... single program multiple data (SPMD) message-passing programming model, ... These four distinct phases, present in most implicit codes, are: vertex-based loops, ... of the w
Figure 4: Electric guitar. Figure 5: Finite element mesh. Finite Element Methods. The most general numerical techniques for solving PDEs are known as finite ...
extract boundary data as a surface mesh for each sub-domain, and refine all the ... stored on the hard disk drive once, and the master processor distributes loads ...
analysis of complex aerodynamic problems. .... strategy . T he use of a Newton solver re q uires the inversion of a large nonsymmetric ... contributions, andгв ) one or more turbulence-related e q uations appear in the system of conservations laws . ..... T he time step length is selected according to the Switched E volution R ...
AIAA 2009-4137
19th AIAA Computational Fluid Dynamics 22 - 25 June 2009, San Antonio, Texas
