COPPER 2017: 18TH COPPER MOUNTAIN CONFERENCE ON MULTIGRID METHODS
PROGRAM

Days: Sunday, March 26th Monday, March 27th Tuesday, March 28th Wednesday, March 29th Thursday, March 30th

Sunday, March 26th

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08:30-11:30 Session 1: Tutorial
Location: Bighorn C-1
08:30
Multigrid: The Fundamentals ( abstract )
13:30-16:00 Session 2: Tutorial
Location: Bighorn C-1
13:30
Algebraic Multigrid and Advanced Topics ( abstract )
16:30-18:00 Session 3: Tutorial
Location: Bighorn C-1
16:30
Parallel Multigrid ( abstract )
Monday, March 27th

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07:30-08:30Breakfast Buffet
08:00-10:05 Session 4: Multilevel Method Performance
Location: Bighorn C
08:00
Reducing Communication Costs in Sparse Matrix-Vector Multiplication ( abstract )
08:25
OPTIMIZING COMMUNICATIONS IN MULTI-GRID METHODS USING GPUDIRECT ASYNC ( abstract )
08:50
Studying Convergence of Nested Iteration with Range Decomposition ( abstract )
09:15
Multigrid on heterogeneous systems ( abstract )
09:40
Finite Element Based Multigrid at Scale ( abstract )
10:05-10:25Coffee and Tea Break
10:25-12:30 Session 5: Performance Modeling - In honor of Hormozd Gahvari
Location: Bighorn C
10:25
A Performance Model for Allocating the Parallelism in a Multigrid-in-Time Solver ( abstract )
10:50
The Role of Performance Modeling for Numerical Algorithms ( abstract )
11:15
Understanding Complexity of Evolving High Performance Computing Systems to Predict Performance ( abstract )
11:40
Is the Pingpong Communication Model Still Relevant? ( abstract )
12:05
Preparing Robust Structured Multigrid for Exascale ( abstract )
12:30-16:00Lunch Break
16:00-16:30Coffee and Tea Break
16:30-18:35 Session 6: Algebraic Multigrid
Location: Bighorn C
16:30
Distance Laplacians and Algebraic Multigrid ( abstract )
16:55
Reduction-based Algebraic Multigrid for Upwind Discretizations ( abstract )
17:20
Robust AMG interpolation with target vectors ( abstract )
17:45
Optimal Interpolation in Algebraic Multigrid Methods ( abstract )
18:10
Performance Analysis of SA-AMG Solver with Additional Near-Kernel Vectors at Coarser Levels ( abstract )
Tuesday, March 28th

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07:30-08:30Breakfast Buffet
08:00-10:05 Session 7A: Emerging Architectures
Location: Bighorn C
08:00
Multigrid preconditioning for matrix-free operators ( abstract )
08:25
Explicit Vectorization for Algebraic Multigrid Methods ( abstract )
08:50
Implementing an efficient distributed H-matrix direct LLt solver using a hybrid MPI/task-based programming model ( abstract )
09:15
Kokkos and Legion Implementations of the SNAP Proxy Application ( abstract )
09:40
FleCSI: Flexible Computational Infrastructure ( abstract )
08:00-10:05 Session 7B: Saddle Point Problems / PDE Systems
Chair:
Location: Bighorn B
08:00
Local Fourier analysis of Braess-Sarazin relaxation for the Stokes equations ( abstract )
08:25
Weakly imposed symmetry and robust preconditioners for Biot's consolidation model ( abstract )
08:50
Multigrid reduction framework for PDE systems ( abstract )
09:15
Multigrid smoothers for the Stokes problem ( abstract )
10:05-10:25Coffee and Tea Break
10:25-12:30 Session 8A: Parallel Time Integration, Part 1 of 2
Location: Bighorn C
10:25
Multigrid Reduction in Time with Space-Time Adaptivity ( abstract )
10:50
A multigrid perspective on the parallel full approximation scheme in space and time ( abstract )
11:15
SPH-REXI: An efficient parallel-in-time solver with application in ocean and atmospheric simulations on the sphere ( abstract )
11:40
Extending the flexibility of XBraid to implement various space-time parallel multigrid methods ( abstract )
12:05
An iterative approach for time-parallel time integration based on discontinuous Galerkin methods ( abstract )
10:25-12:30 Session 8B: Applications, Part 1 of 2
Location: Bighorn B
10:25
MULTIGRID BLOCK PRECONDITIONING FOR THE LOW-MACH COMPRESSIBLE NAVIER-STOKES EQUATIONS WITH LASER-INDUCED PHASE CHANGE ( abstract )
10:50
Scalable Solution Strategies for Stabilized Finite-Element Flow Solvers on Unstructured Meshes ( abstract )
11:15
An algebraic multigrid solver for multiphase flow in porous media with phase transitions ( abstract )
11:40
Fluidity-Based, Newton-FOSLS Approach to Stokes Flow for Ice Sheets with Basal Sliding ( abstract )
12:05
Parallel Adaptive and Robust Multigrid ( abstract )
12:30-16:00Lunch Break
16:00-16:30Coffee and Tea Break
16:30-18:35 Session 9A: Stochastic and High Dimensional problems
Location: Bighorn C
16:30
Robust optimization of PDE constrained systems using a multilevel Monte Carlo method ( abstract )
16:55
Scalable Hierarchical Sampling of Gaussian Random Fields for Large-Scale Multilevel Monte Carlo Simulations ( abstract )
17:20
Multilevel Posterior Mean Estimation for Uncertainty Quantification in Subsurface Flow ( abstract )
17:45
Algebraic multigrid support vector machines ( abstract )
16:30-18:35 Session 9B: Applications, Part 2 of 2
Location: Bighorn B
16:30
Multigrid preconditioning techniques for geophysical electromagnetics ( abstract )
16:55
Shifted Laplacian Multigrid for the Elastic Helmholtz Equation ( abstract )
17:20
A partitioned method for explicit elastodynamics based on a generalized dual Schur complement ( abstract )
17:45
Seggregated smoothers in the multigrid treatment of poroelasticity system ( abstract )
18:10
Multigrid Methods for Regularized Problems ( abstract )
20:00-21:15 Session 10: Tutorial
Location: Bighorn C
20:00
XBraid Tutorial ( abstract )
Wednesday, March 29th

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07:30-08:30Breakfast Buffet
08:00-10:05 Session 11A: Geometric Multigrid
Location: Bighorn C
08:00
Multigrid methods for isogeometric Navier-Stokes discretizations ( abstract )
08:25
Geometric Multigrid for Graphene ( abstract )
08:50
A Geometric Multigrid Preconditioning Strategy for DPG System Matrices ( abstract )
09:15
A Robust Multigrid Solver for Highly Anisotropic and Singular Elliptic Problems on Spheres ( abstract )
09:40
Geometric Multigrid with Operator-Dependent Coarse Spaces ( abstract )
08:00-10:05 Session 11B: Graph problems
Location: Bighorn B
08:00
A Parallel Solver for Graph Laplacians ( abstract )
08:25
An algebraic multigrid approach to scalable graphs for multiscale modeling ( abstract )
08:50
Solving Graph Laplacian Systems Through Recursive Partitioning and Two-Grid Preconditioning ( abstract )
09:15
Spectral Coarsening for Graph Laplacian Problems ( abstract )
09:40
Spectral clustering of signed graphs with algebraic multigrid preconditioning ( abstract )
10:05-10:25Coffee and Tea Break
10:25-12:30 Session 12A: Parallel Time Integration, Part 2 of 2
Location: Bighorn C
10:25
A parallel-in-time algorithm for variable stepsize multistep methods applied to DAEs ( abstract )
10:50
Multigrid waveform relaxation for solving the time-fractional heat equation ( abstract )
11:15
Algebraic multigrid methods for an adaptive space-time finite element discretization ( abstract )
11:40
Towards a Parallel-in-Time Multigrid Solver for Fluid-Structure Interaction Problems ( abstract )
10:25-12:30 Session 12B: Structured Methods & Multiphysics Problems
Location: Bighorn B
10:25
Hybrid Multigrid Methods for Nearly Structured Meshes ( abstract )
10:50
MueLu - a multigrid framework for multiphysics preconditioners ( abstract )
11:15
A class of parallel hybrid algorithms based on field-splitting, AMG and ASM in MOOSE ( abstract )
12:30-16:00Lunch Break
16:00-16:30Coffee and Tea Break
16:30-18:35 Session 13: Student Paper Competition
Chair:
Location: Bighorn C
16:30
Monolithic Multigrid Method for the Coupled Stokes Flow and Deformable Porous Medium System ( abstract )
16:55
Multigrid Reduction in Time with Adaptive Spatial Coarsening for the Linear Advection Equation ( abstract )
17:20
Algebraic Multigrid for Directed Graph Laplacian Linear Systems (NS-LAMG) ( abstract )
Thursday, March 30th

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07:30-08:30Breakfast Buffet
08:00-10:05 Session 14: Discretizations
Location: Bighorn C
08:00
A Robust Overlapping Domain Decomposition Method for a New Hybridizable Mixed Discretization of Linear Elasticity ( abstract )
08:25
An efficient prewavelet approach for the solution of second order elliptic differential equations with variable coefficient on sparse grids ( abstract )
08:50
A Mixed-Method B-Field Finite-Element Formulation for Incompressible, Resistive Magnetohydrodynamics ( abstract )
09:15
Towards a More Algebraic hp-Multigrid ( abstract )
09:40
Comparison of LL* and Inverse LL* Least-Squares Finite Element Methods for Hyperbolic Problems ( abstract )
10:05-10:25Coffee and Tea Break
10:25-12:30 Session 15: Multigrid
Location: Bighorn C
10:25
Nonlinear Multigrid Method Applied to Thermal Radiative Transfer ( abstract )
10:50
On nonlinear adaptivity with heterogeneity ( abstract )
11:15
Algebraic Multilevel Methods for Computing Diffusion-Based Metrics on Graphs ( abstract )
11:40
Parallel geometric multigrid for high order discontinuous Galerkin methods ( abstract )