{"id":18847795,"url":"https://github.com/jacobwilliams/dvode","last_synced_at":"2026-01-27T16:31:37.718Z","repository":{"id":146677336,"uuid":"48972784","full_name":"jacobwilliams/dvode","owner":"jacobwilliams","description":"Modern Fortran Edition of the DVODE ODE Solver","archived":false,"fork":false,"pushed_at":"2025-08-05T03:30:39.000Z","size":1104,"stargazers_count":5,"open_issues_count":1,"forks_count":1,"subscribers_count":2,"default_branch":"master","last_synced_at":"2025-08-05T05:22:02.097Z","etag":null,"topics":["adams-bashforth","fortran","fortran-package-manager","ode","vode"],"latest_commit_sha":null,"homepage":"","language":"Fortran","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/jacobwilliams.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE.md","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2016-01-04T03:30:47.000Z","updated_at":"2025-08-05T03:28:26.000Z","dependencies_parsed_at":null,"dependency_job_id":"ae705e53-d0ef-4917-b7cf-0ef5aad288f1","html_url":"https://github.com/jacobwilliams/dvode","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/jacobwilliams/dvode","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jacobwilliams%2Fdvode","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jacobwilliams%2Fdvode/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jacobwilliams%2Fdvode/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jacobwilliams%2Fdvode/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/jacobwilliams","download_url":"https://codeload.github.com/jacobwilliams/dvode/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jacobwilliams%2Fdvode/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28816563,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-27T12:25:15.069Z","status":"ssl_error","status_checked_at":"2026-01-27T12:25:05.297Z","response_time":168,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["adams-bashforth","fortran","fortran-package-manager","ode","vode"],"created_at":"2024-11-08T03:09:42.426Z","updated_at":"2026-01-27T16:31:37.701Z","avatar_url":"https://github.com/jacobwilliams.png","language":"Fortran","readme":"![dvode](media/logo.png)\n============\n\nModern Fortran Edition of the DVODE ODE Solver.\n\n**THIS IS A WORK IN PROGRESS!**\n\n[![GitHub release](https://img.shields.io/github/release/jacobwilliams/dvode.svg?style=plastic)](https://github.com/jacobwilliams/dvode/releases/latest)\n[![Build Status](https://github.com/jacobwilliams/dvode/actions/workflows/CI.yml/badge.svg)](https://github.com/jacobwilliams/dvode/actions)\n[![codecov](https://codecov.io/gh/jacobwilliams/dvode/branch/master/graph/badge.svg?token=BHtd51oUTE)](https://codecov.io/gh/jacobwilliams/dvode)\n\n\n### Documentation\nThe latest API documentation can be found [here](https://jacobwilliams.github.io/dvode/). This was generated from the source code using [FORD](https://github.com/Fortran-FOSS-Programmers/ford) (i.e. by running `ford ford.md`).\n\n### Compiling\n\nThe library can be compiled with recent versions the Intel Fortran Compiler and GFortran (and presumably any other Fortran compiler that supports modern standards).\n\nA `fpm.toml` file is provided for compiling dvode with the [Fortran Package Manager](https://github.com/fortran-lang/fpm). For example, to build:\n\n```\nfpm build --profile release\n```\n\nBy default, the library is built with double precision (`real64`) real values. Explicitly specifying the real kind can be done using the following processor flags:\n\nPreprocessor flag | Kind  | Number of bytes\n----------------- | ----- | ---------------\n`REAL32`  | `real(kind=real32)`  | 4\n`REAL64`  | `real(kind=real64)`  | 8\n`REAL128` | `real(kind=real128)` | 16\n\nFor example, to build a single precision version of the library, use:\n\n```\nfpm build --profile release --flag \"-DREAL32\"\n```\n\nTo run the unit tests:\n\n```\nfpm test --profile release\n```\n\nTo use `dvode` within your fpm project, add the following to your `fpm.toml` file:\n```toml\n[dependencies]\ndvode = { git=\"https://github.com/jacobwilliams/dvode.git\" }\n```\n\nor, to use a specific version:\n```toml\n[dependencies]\ndvode = { git=\"https://github.com/jacobwilliams/dvode.git\", tag = \"1.0.0\"  }\n```\n\nThe library requires some [BLAS](https://netlib.org/blas/) routines, which are included. However, the user may also choose to link to an external BLAS library. This can be done by using the `HAS_BLAS` compiler directive. For example:\n\n```\nfpm build --compiler gfortran --flag \"-DHAS_BLAS -lblas\"\n```\n\nHowever, note that an external BLAS can only be used if the library is compiled with double precision (`real64`) reals.\n\n### References\n * Brown, Byrne, Hindmarsh, [VODE, A Variable-Coefficient ODE Solver](https://computing.llnl.gov/sites/default/files/ODEPACK_pub4_207532.pdf), June 1988.\n * [ODEPACK](https://computing.llnl.gov/projects/odepack): Fortran ODE Solvers [LLNL]\n\n### See also\n * [SUNDIALS](https://computing.llnl.gov/projects/sundials) The successor to VODE and other codes from LLNL. [(GitHub repo)](https://github.com/LLNL/sundials)\n * A backup of another DVODE refactoring formerly located at  https://www.radford.edu/~thompson/vodef90web/vodef90source/misc.html can be found at [CRquantum/dvode_backup](https://gitlab.com/CRquantum/dvode_backup).\n * [DDEABM](https://github.com/jacobwilliams/ddeabm) Modern Fortran implementation of the DDEABM Adams-Bashforth algorithm.","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjacobwilliams%2Fdvode","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjacobwilliams%2Fdvode","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjacobwilliams%2Fdvode/lists"}