{"id":22411988,"url":"https://github.com/wkliao/parallel-netcdf","last_synced_at":"2025-07-31T22:30:57.439Z","repository":{"id":86589282,"uuid":"52913935","full_name":"wkliao/parallel-netcdf","owner":"wkliao","description":"Mirror to PnetCDF SVN repo. PnetCDF official repo is now in https://github.com/Parallel-NetCDF/PnetCDF","archived":false,"fork":false,"pushed_at":"2018-06-01T11:00:15.000Z","size":23287,"stargazers_count":10,"open_issues_count":0,"forks_count":4,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-04-07T10:51:26.392Z","etag":null,"topics":["fortran","io","mpi","netcdf","parallel-computing"],"latest_commit_sha":null,"homepage":"https://svn.mcs.anl.gov/repos/parallel-netcdf","language":"C","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/wkliao.png","metadata":{"files":{"readme":"README","changelog":"ChangeLog","contributing":null,"funding":null,"license":"COPYING","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null}},"created_at":"2016-03-01T22:11:13.000Z","updated_at":"2023-05-25T10:56:48.000Z","dependencies_parsed_at":"2023-03-22T19:46:04.475Z","dependency_job_id":null,"html_url":"https://github.com/wkliao/parallel-netcdf","commit_stats":{"total_commits":3556,"total_committers":5,"mean_commits":711.2,"dds":"0.22975253093363335","last_synced_commit":"d6ff03f4f1058f5fa3fafe3f17db8a23b3346de2"},"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/wkliao/parallel-netcdf","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/wkliao%2Fparallel-netcdf","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/wkliao%2Fparallel-netcdf/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/wkliao%2Fparallel-netcdf/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/wkliao%2Fparallel-netcdf/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/wkliao","download_url":"https://codeload.github.com/wkliao/parallel-netcdf/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/wkliao%2Fparallel-netcdf/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":268127167,"owners_count":24200320,"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":"2025-07-31T02:00:08.723Z","response_time":66,"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":["fortran","io","mpi","netcdf","parallel-computing"],"created_at":"2024-12-05T13:16:25.506Z","updated_at":"2025-07-31T22:30:56.480Z","avatar_url":"https://github.com/wkliao.png","language":"C","funding_links":[],"categories":[],"sub_categories":[],"readme":"\nParallel netCDF (PnetCDF) is a library providing high-performance parallel I/O\nwhile still maintaining file-format compatibility with Unidata's NetCDF,\nspecifically the classic CDF 1, 2, and 5 formats. Although NetCDF supports\nparallel I/O starting from version 4, it is built on top of HDF5 and thus its\nparallel feature requires files in HDF5 format. PnetCDF is currently the only\noption for parallel I/O on files in classic formats.\n\nStarting from version 1.1.0, PnetCDF supports the CDF-5 file format, an\nextension of CDF-2, that supports more atomic data types and allows users to\ndefine large dimensions, attributes, and variables (\u003e2B array elements).\n\nNetCDF gives scientific programmers a space-efficient and portable means for\nstoring data.  By making some small changes to the NetCDF APIs, PnetCDF can use\nMPI-IO to achieve high-performance parallel I/O.\n\nMore extensive installation guides can be found in file INSTALL.  Additional\ninformation regarding the contents of the release can be found in the\nRELEASE_NOTES file in the top-level directory.  Finally, the PnetCDF project\nweb sites below contain information on bug fixes and software releases.\n    http://trac.mcs.anl.gov/projects/parallel-netcdf\n    http://cucis.ece.northwestern.edu/projects/PnetCDF\n\n\nRequirements:\n    - PnetCDF relies on MPI-IO.  ROMIO, the most common MPI-IO implementation,\n      can make use of a prefix in front of the file name to specify the\n      underlying file system and override ROMIO's auto detection. A typical\n      prefix would look like \"nfs:\" or \"pvfs2:\".  Bear this in mind if you use\n      a file name with ':' characters.  In some cases, ROMIO might think you\n      are passing in a prefix and will complain about an unsupported file\n      system type.  If that happens, add a file-system prefix to your file\n      name.\n    - To build PnetCDF, you will need the following additional programs:\n        - autotools (autoconfig, automake, libtool, m4, etc.)\n        - Optional: (for PnetCDF developers)\n             - either yacc or bison\n\t     - either lex or flex\n      These are usually part of your operating system's development tools.\n\n\nBuild recipes:\n    The process of building and installation of PnetCDF library is usually\n    simple: by just running commands \"./configure\", \"make\", and \"make install\".\n    (If more than one set of MPI compilers are available on your system, adding\n    option --with-mpi=/path/to/MPI/install to the configure command line is\n    recommended.) Several configure options are also available to customize it.\n    See INSTALL for more information.\n\n    Several machine- and compiler-specific build recipes are available under\n    the directory of doc.\n    - README.IBM        (BlueGene systems)\n    - README.SX         (NEC SX systems)\n    - README.CRAY       (Cray systems)\n    - README.INTEL      (Intel Compilers)\n    - README.LINUX      (GNU compilers)\n    - README.Fujitsu    (Fujitsu systems)\n    - README.K-Computer (the K computer @RIKEN)\n    - README.SGI        (SGI systems, such as Endeavour @NASA)\n    - README.Ubuntu     (Ubuntu)\n\n\nPnetCDF User Documents:\n    C API References\n      http://cucis.ece.northwestern.edu/projects/PnetCDF/doc/pnetcdf-c\n    Questions \u0026 Answers\n      http://cucis.ece.northwestern.edu/projects/PnetCDF/faq.html\n\nNote on supporting large files and large variables.\n    - Some Fortran APIs contain arguments of 64-bit integer data type, which\n      corresponds to MPI_Offset data type in their peer C APIs. Declare those\n      arguments as 'integer(kind=MPI_OFFSET_KIND)'.\n\n    - In places where you might use NF_UNLIMITED to define an unlimited\n      dimension in one of the nfmpi_ routines, use NFMPI_UNLIMITED.\n      NFMPI_UNLIMITED has been defined as the proper 64-bit integer type for\n      nfmpi_def_dim, whereas NF_UNLIMITED might be too small. Similarly, for\n      Fortran 90, use NF90MPI_UNLIMITED instead of NF90_UNLIMITED.\n\n\nMailing List\n    PnetCDF user community discusses the design and use of the library on the\n    parallel-netcdf@mcs.anl.gov mailing list. Anyone interested in developing\n    or using PnetCDF is encouraged to join. Visit the list information page\n    https://lists.mcs.anl.gov/mailman/listinfo/parallel-netcdf\n    for subscription instructions. This mailing list is also for announcements,\n    bug reports, and questions about PnetCDF software.\n\n    The past discussions in the mailing list are available in the follow URL:\n    http://lists.mcs.anl.gov/pipermail/parallel-netcdf/.\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fwkliao%2Fparallel-netcdf","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fwkliao%2Fparallel-netcdf","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fwkliao%2Fparallel-netcdf/lists"}