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Hari
  • Member for 7 years, 6 months
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168 votes
8 answers
136k views

Recommendations for a usable, fast C++ matrix library?

91 votes
10 answers
24k views

What kinds of problems lend themselves well to GPU computing?

  • 2,363
29 votes
2 answers
13k views

Does a tiny determinant imply ill-conditioning of a matrix?

  • 3,334
28 votes
3 answers
23k views

BFGS vs. Conjugate Gradient Method

  • 2,109
27 votes
9 answers
4k views

Modern C++ in scientific computing?

  • 1,629
20 votes
4 answers
4k views

For which statistical methods are GPUs faster than CPUs?

  • 697
19 votes
1 answer
468 views

Catastrophic cancellation in logsum

14 votes
1 answer
13k views

Universities known for computational physics

14 votes
1 answer
1k views

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

13 votes
3 answers
354 views

Is it usual to have no convergence checking in Multigrid?

  • 1,443
13 votes
2 answers
5k views

Compute all eigenvalues of a very big and very sparse adjacency matrix

  • 233
12 votes
1 answer
2k views

How exactly does the *full* multigrid algorithm run?

11 votes
2 answers
1k views

Which iterative linear solvers converge for positive semidefinite matrices?

  • 579
11 votes
1 answer
2k views

Sensitivity of BFGS to initial Hessian approximations

  • 11.8k
10 votes
1 answer
3k views

Why are interior point methods difficult to warm start?

10 votes
2 answers
3k views

Do RBF kernel matrices tend to be ill-conditioned?

  • 317
9 votes
2 answers
2k views

Help deciding between cubic and quadratic interpolation in line search

  • 193
9 votes
5 answers
1k views

Is Discrete Exterior Calculus currently a focusing point in numerial computing world or simulation in industry,

9 votes
2 answers
977 views

Initially Bracketing Minimum for Line Search

9 votes
3 answers
5k views

Solving a sparse and highly ill-conditioned system

  • 167
8 votes
1 answer
21k views

scipy.optimize.fmin_bfgs: "Desired error not necessarily achieved due to precision loss"

  • 183
8 votes
3 answers
438 views

What is too big for standard linear algebra/optimization methods?

  • 785
7 votes
2 answers
2k views

Convergence/stagnation of BiCGStab(l)

  • 1,300
6 votes
2 answers
707 views

Implementing a numerical method for unconstrained optimization in Go

  • 163
6 votes
7 answers
2k views

Minimisation problem in thousands of dimensions

  • 320
6 votes
2 answers
1k views

Algorithm for optimizing Ax = b with unknown A and known x values

  • 235
5 votes
1 answer
971 views

What is the runtime complexity of MATLAB operation A*B where A and B are general sparse matrices?

  • 333
5 votes
2 answers
1k views

Sufficient conditions to ensure convergence of the conjugate gradient method

  • 11.8k
4 votes
1 answer
100 views

Applicability of combinatorial and support preconditioner

  • 3,500
4 votes
2 answers
1k views

Line search for Newton method

  • 1,101