nidtec-una / nidtec-una/krysbas-dev

Add possibility to pass the `startVector` to compute eigenvectors

Open
#9 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

enhancement priority:low
Dominant language
MATLAB
Stars
6
Forks
2
PR merge metrics
No merged PRs in 30d

Description

Currently, the solvers adaptive_lgmres-e,gmeres-e and lgmres-e use the built-in function eigs to compute eigenvalues. eigs, by default, initialises the start vector with random values. It is possible, however, to pass the StartValue to eigs. Thus, we should extend the signature of the solvers to allow for this option. This parameter should be optional.

The motivation behind this is to have full control on the final number of iterations, which is particularly relevant for testing.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the adaptive_lgmres-e, gmeres-e, and lgmres-e solver entry points and their calls to MATLAB's eigs function. Check how an optional startVector can be passed through each solver, then verify that tests can use it to control the final iteration count.

Written by the indexing model from the issue text.

Assessment

Tech stack
matlab
Domain
backend-api-design
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.