A heterogeneous CPU-GPU parallel approach to a multigrid Poisson solver for incompressible fluid simulation

2013 ◽  
Vol 24 (3-4) ◽  
pp. 185-193 ◽  
Author(s):  
Hwi-Ryong Jung ◽  
Sun-Tae Kim ◽  
Junyong Noh ◽  
Jeong-Mo Hong
Keyword(s):  
Incompressible Fluid ◽  
Fluid Simulation ◽  
Poisson Solver ◽  
Multigrid Poisson Solver

A Cut-Cell Geometric Multigrid Poisson Solver for Fluid Simulation

2015 ◽  
Vol 34 (2) ◽  
pp. 481-491 ◽  
Author(s):  
Daniel Weber ◽  
Johannes Mueller-Roemer ◽  
André Stork ◽  
Dieter Fellner
Keyword(s):  
Fluid Simulation ◽  
Poisson Solver ◽  
Cut Cell ◽  
Multigrid Poisson Solver ◽  
Geometric Multigrid

ATOMISTIC SIMULATION OF GATE EFFECT ON NANOSCALE INTRINSIC Si FIELD-EFFECT TRANSISTORS

2009 ◽  
Vol 08 (01n02) ◽  
pp. 113-117 ◽  
Author(s):  
X. F. WANG ◽  
L. N. ZHAO ◽  
Z. H. YAO ◽  
Z. F. HOU ◽  
M. YEE ◽  
...  
Keyword(s):  
Field Effect ◽  
Density Functional ◽  
Field Effect Transistors ◽  
Functional Theory ◽  
Poisson Solver ◽  
System A ◽  
Voltage Curve ◽  
Gate Effect ◽  
Multigrid Poisson Solver ◽  
Model Device

We study the electrostatic and quantum transport properties of nanoscale double-gated Si -based field effect transistors within the framework of density functional theory combined with nonequilibrium Green's function approach. In our model device system, a Si slab is sandwiched between two insulator slabs and connected to two semi-infinite Si electrodes at its left and right ends. The effect of the double gates is taken into account by applying proper electrostatic boundary conditions and solving the Poisson equation self-consistently in the system. In the representation of localized SIESTA linear combination of atomic orbitals, the study is carried out with the help of Atomistix ToolKit (ATK) package together with an efficient multigrid Poisson solver. We find that the surface potential versus gate voltage curve shows similar characteristics as in conventional MOSFETs even for devices of 1 nm size, though the shape of the curve varies with the shrink of the system. In different working regimes of the devices, the electrostatic potential and the transmission spectrum are analyzed for an atomistic understanding of the device behavior.

An efficient multigrid Poisson solver for device simulations

1996 ◽  
Vol 15 (2) ◽  
pp. 141-150 ◽  
Author(s):  
M. Saraniti ◽  
A. Rein ◽  
G. Zandler ◽  
P. Vogl ◽  
P. Lugli
Keyword(s):  
Poisson Solver ◽  
Multigrid Poisson Solver

scholarly journals An efficient multigrid poisson solver

1999 ◽  
Vol 71 (4) ◽  
pp. 541-553 ◽  
Author(s):  
M. Othman ◽  
A. R. Abdullah
Keyword(s):  
Poisson Solver ◽  
Multigrid Poisson Solver
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