{"id":19705998,"url":"https://github.com/llnl/fpzip","last_synced_at":"2025-10-09T13:08:02.523Z","repository":{"id":43883247,"uuid":"228943101","full_name":"LLNL/fpzip","owner":"LLNL","description":"Lossless compressor of multidimensional floating-point arrays","archived":false,"fork":false,"pushed_at":"2020-06-05T18:07:35.000Z","size":67,"stargazers_count":116,"open_issues_count":2,"forks_count":16,"subscribers_count":3,"default_branch":"develop","last_synced_at":"2025-07-27T00:45:57.918Z","etag":null,"topics":["compression","cpp","data-viz","floating-point"],"latest_commit_sha":null,"homepage":"http://fpzip.llnl.gov","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"bsd-3-clause","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/LLNL.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2019-12-19T00:17:57.000Z","updated_at":"2025-07-26T15:09:57.000Z","dependencies_parsed_at":"2022-09-17T06:42:17.601Z","dependency_job_id":null,"html_url":"https://github.com/LLNL/fpzip","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/LLNL/fpzip","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/LLNL%2Ffpzip","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/LLNL%2Ffpzip/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/LLNL%2Ffpzip/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/LLNL%2Ffpzip/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/LLNL","download_url":"https://codeload.github.com/LLNL/fpzip/tar.gz/refs/heads/develop","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/LLNL%2Ffpzip/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":279001543,"owners_count":26083102,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-10-09T02:00:07.460Z","response_time":59,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"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":["compression","cpp","data-viz","floating-point"],"created_at":"2024-11-11T21:33:01.162Z","updated_at":"2025-10-09T13:08:02.487Z","avatar_url":"https://github.com/LLNL.png","language":"C++","readme":"fpzip\n=====\n\nINTRODUCTION\n------------\n\nfpzip is a library and command-line utility for lossless and optionally lossy\ncompression of 2D and 3D floating-point arrays.  fpzip assumes spatially\ncorrelated scalar-valued data, such as regularly sampled continuous functions,\nand is not suitable for compressing unstructured streams of floating-point\nnumbers.  In lossy mode, fpzip discards some number of least significant\nmantissa bits and losslessly compresses the result.  fpzip currently supports\nIEEE-754 single (32-bit) and double (64-bit) precision floating-point data.\nfpzip is written in C++ but has a C compatible API that can be called from\nC and other languages.  It conforms to the C++98 and C89 language standards.\n\nfpzip is released as Open Source under a three-clause BSD license.  Please\nsee the file LICENSE for further details.\n\n\nINSTALLATION\n------------\n\n### CMake builds\n\nfpzip was developed for Linux and macOS but can be built on Windows using\n[CMake](https://cmake.org).  To use CMake, type:\n\n    cd fpzip\n    mkdir build\n    cd build\n    cmake ..\n    cmake --build . --config Release\n\nfpzip can be configured using compile-time options, e.g.:\n\n    cmake .. -DFPZIP_FP=FPZIP_FP_SAFE -DBUILD_UTILITIES=OFF\n\nTo display the available options, type:\n\n    cmake .. -L\n\nBasic regression testing is available:\n\n    ctest -V -C Release\n\n### GNU builds\n\nfpzip may also be built using [GNU make](https://www.gnu.org/software/make/):\n\n    cd fpzip\n    gmake\n\nThis builds lib/libfpzip.a and bin/fpzip.\n\nThe GNU make options are listed in the file Config and should preferably be\nset on the command line, e.g.:\n\n    gmake FPZIP_FP=FPZIP_FP_SAFE BUILD_UTILITIES=0\n\nTo run the regression tests, type:\n\n    gmake test\n\n\nDOCUMENTATION\n-------------\n\nDocumentation is currently limited to the source files themselves.  For\ninformation on the API, please see the header file include/fpzip.h.  For an\nexample of how to call fpzip, please see the source file utils/fpzip.cpp.\nThis utility may be used to compress binary files of raw floating-point\nnumbers.  Usage is given by:\n\n    fpzip -h\n\n\nAUTHOR\n------\n\nfpzip was written by [Peter Lindstrom](https://people.llnl.gov/pl) at\nLawrence Livermore National Laboratory.\n\n\nCITING fpzip\n------------\n\nIf you use fpzip for scholarly research, please cite the following paper:\n\n    Peter Lindstrom and Martin Isenburg\n    \"Fast and Efficient Compression of Floating-Point Data\"\n    IEEE Transactions on Visualization and Computer Graphics, 12(5):1245-1250, 2006\n\n\nLICENSE\n-------\n\nfpzip is distributed under the terms of the BSD license.  See the files\n[LICENSE](https://github.com/LLNL/fpzip/blob/master/LICENSE) and\n[NOTICE](https://github.com/LLNL/fpzip/blob/master/NOTICE) for details.\n\n`SPDX-License-Identifier: BSD`\n\n``LLNL-CODE-764017``\n\n\nQUESTIONS AND COMMENTS\n----------------------\n\nFor questions and comments, please contact us at fpzip@llnl.gov.\nPlease submit bug reports and feature requests via the GitHub\n[issue tracker](https://github.com/LLNL/fpzip/issues).\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fllnl%2Ffpzip","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fllnl%2Ffpzip","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fllnl%2Ffpzip/lists"}