Network profile

Patrick Sanan

Reputation

808

2018
2019
2020
2021

Top tag

linear-algebra

Next privilege

1,000 Rep.

Edit questions and answers

Badges

Newest

Yearling

Next badge

3/5

Impact

0 posts edited

2 helpful flags

498 votes cast

21 Bookmarks

Votes Activity Newest Views Added

votes

answers

24k

views

What makes Fortran fast?

Dec 19 '15 at 13:06 aterrel 3,484

votes

answers

32k

views

How does the MATLAB backslash operator solve $Ax=b$ for square matrices?

linear-algebra performance matlab

Mar 2 '12 at 9:19 F'x 511

votes

answers

views

Modern resources for learning FEM

finite-element reference-request

Sep 9 '16 at 18:22 Hosein Rahnama 111

votes

answers

views

Are there any famous problems/algorithms in scientific computing that cannot be sped up by parallelisation

parallel-computing

May 27 '17 at 14:02 Jakub Klinkovský 442

votes

answers

13k

views

Why is my iterative linear solver not converging?

linear-algebra petsc preconditioning krylov-method iterative-method

Jan 7 '12 at 1:29 Community♦ 1

votes

answers

13k

views

What is pseudo time-stepping?

pde time-integration

May 7 '13 at 17:22 Shainath 459

votes

answers

views

What is the advantage of multigrid over domain decomposition preconditioners, and vice versa?

pde multigrid preconditioning domain-decomposition

Jan 10 '12 at 9:31 Community♦ 1

votes

answers

views

Portable multicore/NUMA memory allocation/initialization best practices

performance memory-management multicore

Dec 19 '13 at 10:13 eoinbrazil 111

votes

answer

views

Can a Krylov subspace method be used as a smoother for multigrid?

linear-algebra multigrid iterative-method krylov-method

Jan 17 '12 at 15:13 Jed Brown 24.8k

votes

answer

695

views

What is the current state of polynomial preconditioners?

iterative-method preconditioning krylov-method

Dec 19 '12 at 13:59 shuhalo 3,370

votes

answers

991

views

Impose the compatibility conditions for mixed finite elements method in Stokes equation

finite-element

Sep 15 '12 at 15:51 shuhalo 3,370

votes

answer

views

How is Krylov-accelerated Multigrid (using MG as a preconditioner) motivated?

linear-algebra linear-solver multigrid krylov-method

Mar 14 at 18:28 Patrick Sanan 808

votes

answer

945

views

Smallest eigenvalue without inverse

linear-algebra eigensystem eigenvalues iterative-method

Jan 4 '16 at 18:08 Community♦ 1

votes

answers

views

Understanding the cost of adjoint method for pde-constrained optimization

optimization pde

Jul 25 '14 at 20:43 Geoff Oxberry 29.3k

votes

answer

views

Raviart-Thomas elements on reference square

pde finite-element

Jun 11 '16 at 15:19 Christian Clason 11.7k

votes

answers

views

How to construct a prolongation and restriction operator for an algebraic multigrid solver?

linear-algebra multigrid

Feb 13 '12 at 14:34 Community♦ 1

votes

answer

326

views

Iterative “solver” for $x^t \Sigma^{-1} x$

linear-algebra numerical-analysis iterative-method

Oct 13 '15 at 19:43 Wolfgang Bangerth 47.2k

votes

answer

909

views

MPI policy for multiple asynchronous transfers

parallel-computing software mpi

Aug 4 '13 at 15:17 Jed Brown 24.8k

votes

answer

475

views

$L^2$-error in FEM: how to compute integral over reference element?

finite-element error-estimation l2-norm

Dec 16 '16 at 18:52 wrong_path 394

votes

answer

267

views

Is PETSc's DMDA relying on undefined behavior?

petsc

Oct 4 '13 at 14:56 Jed Brown 24.8k

votes

answer

660

views

Numerical integration with singularities

quadrature scipy

Sep 10 '15 at 16:46 Kirill 11.3k

Stack Exchange Network

current community

your communities

more stack exchange communities

Next privilege

Next badge

21 Bookmarks

What makes Fortran fast?

How does the MATLAB backslash operator solve $Ax=b$ for square matrices?

Modern resources for learning FEM

Are there any famous problems/algorithms in scientific computing that cannot be sped up by parallelisation

Why is my iterative linear solver not converging?

What is pseudo time-stepping?

What is the advantage of multigrid over domain decomposition preconditioners, and vice versa?

Portable multicore/NUMA memory allocation/initialization best practices

Can a Krylov subspace method be used as a smoother for multigrid?

What is the current state of polynomial preconditioners?

Impose the compatibility conditions for mixed finite elements method in Stokes equation

How is Krylov-accelerated Multigrid (using MG as a preconditioner) motivated?

Smallest eigenvalue without inverse

Understanding the cost of adjoint method for pde-constrained optimization

Raviart-Thomas elements on reference square

How to construct a prolongation and restriction operator for an algebraic multigrid solver?

Iterative “solver” for $x^t \Sigma^{-1} x$

MPI policy for multiple asynchronous transfers

$L^2$-error in FEM: how to compute integral over reference element?

Is PETSc's DMDA relying on undefined behavior?

Numerical integration with singularities