HODLRlib
HODLRlib: A Library for Hierarchical Matrices - Published in JOSS (2019)
Science Score: 59.0%
This score indicates how likely this project is to be science-related based on various indicators:
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○CITATION.cff file
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✓codemeta.json file
Found codemeta.json file -
✓.zenodo.json file
Found .zenodo.json file -
✓DOI references
Found 4 DOI reference(s) in README -
✓Academic publication links
Links to: arxiv.org, springer.com, joss.theoj.org, zenodo.org -
✓Committers with academic emails
3 of 13 committers (23.1%) from academic institutions -
○Institutional organization owner
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○JOSS paper metadata
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○Scientific vocabulary similarity
Low similarity (10.6%) to scientific vocabulary
Keywords
Repository
A fast, accurate direct solver and determinant computation for dense linear systems
Basic Info
- Host: GitHub
- Owner: SAFRAN-LAB
- License: other
- Language: C++
- Default Branch: master
- Homepage: https://hodlrlib.rtfd.io/
- Size: 8.94 MB
Statistics
- Stars: 159
- Watchers: 15
- Forks: 53
- Open Issues: 6
- Releases: 3
Topics
Metadata Files
README.md
HODLRlib
HODLRlib is a flexible library for performing matrix operations like matrix-vector products, solving and determinant computation in near-linear complexity(for matrices that resemble a HODLR structure). The solver has also been extended to matrices not necessarily arising out of kernels and also to higher dimensions. Further, the solver has been optimized and the running time of the solver is now massively (a few orders of magnitude) faster than the running times reported in the original articles[1][2]. Low-rank approximation of the appropriate blocks are obtained using the rook pivoting algorithm. The domain is sub-divided based on a KDTree. The solver is fairly general, works with minimal restrictions and has been parallelized using OpenMP.
For more details on the usage of the library, visit the documentation page.
Features
MatVecs: Obtains 
at a cost of 
Factorization: Factors the matrix 
into the desired form at a cost of 
Cholesky-like Symmetric Factorization: Obtains 
at a cost of
Solve: Solves linear systems 
at an additional cost of 
Determinant Computation: Additional Cost of 
Version 3.1415
Date: January 6th, 2019
Copyleft 2019: Sivaram Ambikasaran
Developed by Sivaram Ambikasaran, Karan Raj Singh, Shyam Sundar Sankaran
License
This program is free software; you can redistribute it and/or modify it under the terms of MPL2 license. The Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
Owner
- Name: SAFRAN LAB
- Login: SAFRAN-LAB
- Kind: organization
- Email: sivaambi@alumni.stanford.edu
- Website: https://sivaramambikasaran.com/research/
- Repositories: 5
- Profile: https://github.com/SAFRAN-LAB
Code repository for SAFRAN LAB
GitHub Events
Total
- Watch event: 5
- Member event: 1
- Fork event: 4
Last Year
- Watch event: 5
- Member event: 1
- Fork event: 4
Committers
Last synced: 7 months ago
Top Committers
| Name | Commits | |
|---|---|---|
| Sivaram Ambikasaran | s****5@g****m | 176 |
| Shyam Sundar Sankaran | s****5@g****m | 138 |
| Karan Raj Singh | s****9@g****m | 16 |
| Dan F-M | d****m@n****u | 15 |
| abactel | a****l@p****m | 8 |
| Michael Hartmann | m****n@p****e | 6 |
| Sivaram | s****n@S****l | 6 |
| Vaishnavi | v****p@g****m | 5 |
| sivaramambikasaran | s****i@s****l | 5 |
| Jed Brown | j****d@j****g | 2 |
| Travis Askham | a****m@c****u | 2 |
| xantares | x****9@h****m | 1 |
| Travis Askham | a****t@g****m | 1 |
Committer Domains (Top 20 + Academic)
Issues and Pull Requests
Last synced: 6 months ago
All Time
- Total issues: 10
- Total pull requests: 34
- Average time to close issues: over 1 year
- Average time to close pull requests: 3 months
- Total issue authors: 9
- Total pull request authors: 10
- Average comments per issue: 5.4
- Average comments per pull request: 0.74
- Merged pull requests: 30
- Bot issues: 0
- Bot pull requests: 0
Past Year
- Issues: 0
- Pull requests: 0
- Average time to close issues: N/A
- Average time to close pull requests: N/A
- Issue authors: 0
- Pull request authors: 0
- Average comments per issue: 0
- Average comments per pull request: 0
- Merged pull requests: 0
- Bot issues: 0
- Bot pull requests: 0
Top Authors
Issue Authors
- michael-hartmann (2)
- parshakova (1)
- xiayiyu (1)
- exoplaneteer (1)
- poulson (1)
- Charles-Chao-Chen (1)
- derpda (1)
- dfm (1)
- gregreen (1)
Pull Request Authors
- shyams2 (16)
- michael-hartmann (6)
- dfm (3)
- jedbrown (2)
- derpda (2)
- askhamwhat (1)
- MatthiasKi (1)
- vaishna77 (1)
- awesmubarak (1)
- xantares (1)
Top Labels
Issue Labels
Pull Request Labels
Dependencies
- sphinx *
- sphinx_rtd_theme *