{ "_id": "6a2011e4b401979e73449500", "Package": "memshare", "Type": "Package", "Title": "Shared Memory Multithreading", "Version": "1.1.1", "Date": "2026-05-04", "Authors@R": "c(person(\"Julian\" ,\"Maerte\",email= \"j.maerte@iap-gmbh.de\",role=c(\"aut\",\"ctr\"), comment = c(ORCID = \"0000-0001-5451-1023\")),person(\"Romain\" ,\"Francois\",role=c(\"ctb\")), person(\"Michael\", \"Thrun\", email= \"m.thrun@gmx.net\",role=c(\"aut\",\"ths\",\"rev\",\"cph\",\"cre\"), comment = c(ORCID = \"0000-0001-9542-5543\")))", "Description": "This project extends 'R' with a mechanism for efficient\nparallel data access by utilizing 'C++' shared memory. Large\ndata objects can be accessed and manipulated directly from 'R'\nwithout redundant copying, providing both speed and memory\nefficiency. Memshare was published in Thrun, M.C., Maerte J.:\n\"Memshare: Memory Sharing for Multicore Computation in R with\nan Application to Feature Selection by Mutual Information using\nPDE\" (2026), R Journal, .", "Maintainer": "Michael Thrun ", "LazyLoad": "yes", "Config/testthat/edition": "3", "SystemRequirements": "C++17", "NeedsCompilation": "yes", "License": "GPL-3", "URL": "https://www.iap-gmbh.de", "Encoding": "UTF-8", "VignetteBuilder": "knitr", "BugReports": "https://github.com/Mthrun/memshare/issues", "Repository": "https://mthrun.r-universe.dev", "Date/Publication": "2026-05-04 14:38:56 UTC", "RemoteUrl": "https://github.com/mthrun/memshare", "RemoteRef": "HEAD", "RemoteSha": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "Packaged": { "Date": "2026-06-03 11:32:09 UTC", "User": "root" }, "Author": "Julian Maerte [aut, ctr] (ORCID:\n),\nRomain Francois [ctb],\nMichael Thrun [aut, ths, rev, cph, cre] (ORCID:\n)", "MD5sum": "e81aeca3b99d93e40f0c67acdd86a2fd", "_user": "mthrun", "_type": "src", "_file": "memshare_1.1.1.tar.gz", "_fileid": "922a7d73c89adc682f404eb27b38410c8a97aec739439b7ab1ec6b95afc7e969", "_filesize": 212496, "_sha256": "922a7d73c89adc682f404eb27b38410c8a97aec739439b7ab1ec6b95afc7e969", "_created": "2026-06-03T11:32:09.000Z", "_published": "2026-06-03T11:37:08.084Z", "_distro": "noble", "_jobs": [ { "job": 79284055392, "time": 131, "config": "linux-devel-arm64", "r": "4.7.0", "check": "ERROR", "artifact": "7383408721" }, { "job": 79284055381, "time": 140, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "ERROR", "artifact": "7383410859" }, { "job": 79284055414, "time": 133, "config": "linux-release-arm64", "r": "4.6.0", "check": "ERROR", "artifact": "7383409639" }, { "job": 79284055402, "time": 133, "config": "linux-release-x86_64", "r": "4.6.0", "check": "ERROR", "artifact": "7383408756" }, { "job": 79284055367, "time": 89, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "7383393596" }, { "job": 79284055410, "time": 248, "config": "macos-oldrel-x86_64", "r": "4.5.3", "check": "OK", "artifact": "7383448096" }, { "job": 79284055396, "time": 96, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7383395260" }, { "job": 79284055419, "time": 175, "config": "macos-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7383423084" }, { "job": 79283505006, "time": 194, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7383361839" }, { "job": 79284055374, "time": 114, "config": "wasm-release", "r": "4.6.0", "check": "FAIL", "artifact": "" }, { "job": 79284055380, "time": 242, "config": "windows-devel", "r": "4.7.0", "check": "OK", "artifact": "7383450156" }, { "job": 79284055398, "time": 182, "config": "windows-oldrel", "r": "4.5.3", "check": "OK", "artifact": "7383425427" }, { "job": 79284055382, "time": 216, "config": "windows-release", "r": "4.6.0", "check": "OK", "artifact": "7383437964" } ], "_buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/mthrun/memshare", "_commit": { "id": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "author": "Mthrun ", "committer": "Mthrun ", "message": "t= 4.3.0", "role": "Depends" }, { "package": "Rcpp", "role": "LinkingTo" }, { "package": "Rcpp", "version": ">= 1.0.14", "role": "Imports" }, { "package": "parallel", "role": "Imports" }, { "package": "ScatterDensity", "version": ">= 0.1.1", "role": "Suggests" }, { "package": "DataVisualizations", "version": ">= 1.1.5", "role": "Suggests" }, { "package": "mpmi", "role": "Suggests" }, { "package": "rmarkdown", "version": ">= 0.9", "role": "Suggests" }, { "package": "knitr", "version": ">= 1.12", "role": "Suggests" }, { "package": "testthat", "version": ">= 3.0.0", "role": "Suggests" } ], "_owner": "mthrun", "_selfowned": true, "_usedby": 1, "_updates": [ { "week": "2025-35", "n": 3 }, { "week": "2025-36", "n": 1 }, { "week": "2025-37", "n": 5 }, { "week": "2025-45", "n": 1 }, { "week": "2025-49", "n": 6 }, { "week": "2026-19", "n": 2 } ], "_tags": [], "_stars": 9, "_contributors": [ { "user": "mthrun", "count": 18, "uuid": 15046412 } ], "_userbio": { "uuid": 15046412, "type": "user", "name": "Mthrun", "description": "Dr. habil. Michael C. Thrun, promovierte 2017 an der Philipps-Universität Marburg unter Prof. Dr. habil. Alfred Ultsch und habiltierte 2022 im Fach Informatik." }, "_downloads": { "count": 255, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/memshare" }, "_devurl": "https://github.com/mthrun/memshare", "_searchresults": 12, "_topics": [ "cpp" ], "_rbuild": "4.6.0", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/memshare.html", "extra/readme.html", "extra/readme.md", "manual.pdf" ], "_homeurl": "https://github.com/mthrun/memshare", "_realowner": "mthrun", "_cranurl": true, "_releases": [ { "version": "1.0.1", "date": "2025-09-09" }, { "version": "1.0.2", "date": "2025-09-10" }, { "version": "1.0.3", "date": "2025-11-08" }, { "version": "1.0.3.1", "date": "2025-11-08" }, { "version": "1.1.0", "date": "2025-12-11" }, { "version": "1.1.1", "date": "2026-05-04" } ], "_exports": [ "memApply", "memLapply", "memshare_gc", "mutualinfo", "pageList", "registerVariables", "releaseVariables", "releaseViews", "retrieveMetadata", "retrieveViews", "viewList" ], "_help": [ { "page": "memshare-package", "title": "Shared Memory Multithreading", "topics": [ "memshare-package", "memshare" ] }, { "page": "memApply", "title": "Analog of 'parApply' function for a shared memory context.", "topics": [ "memApply" ] }, { "page": "memLapply", "title": "Analog of 'parLapply' function for a shared memory context.", "topics": [ "memLapply" ] }, { "page": "memshare_gc", "title": "Function to remove all handles (ownership and viewership) for a namespace in a worker context.", "concept": [ "shared memory" ], "topics": [ "memshare_gc" ] }, { "page": "mutualinfo", "title": "Mutual Information of continuous and discrete variables.", "concept": [ "information theory" ], "topics": [ "mutualinfo" ] }, { "page": "pageList", "title": "Function to obtain a list of the registered variables of the current session.", "concept": [ "shared memory" ], "topics": [ "pageList" ] }, { "page": "registerVariables", "title": "Function to register variables in a shared memory space.", "concept": [ "shared memory" ], "topics": [ "registerVariables" ] }, { "page": "releaseVariables", "title": "Release variables from a shared memory namespace", "topics": [ "releaseVariables" ] }, { "page": "releaseViews", "title": "Function to release views of a shared memory space.", "concept": [ "shared memory" ], "topics": [ "releaseViews" ] }, { "page": "retrieveMetadata", "title": "Function to obtain the metadata of a variable from a shared memory space.", "concept": [ "shared memory" ], "topics": [ "retrieveMetadata" ] }, { "page": "retrieveViews", "title": "Function to obtain an ''ALTREP'' representation of variables from a shared memory space.", "concept": [ "shared memory" ], "topics": [ "retrieveViews" ] }, { "page": "viewList", "title": "Function to obtain a list of the views the current session holds.", "concept": [ "shared memory" ], "topics": [ "viewList" ] } ], "_readme": "https://github.com/mthrun/memshare/raw/HEAD/README.md", "_rundeps": [ "Rcpp" ], "_sysdeps": [ { "shlib": "libstdc++", "package": "libstdc++6", "source": "gcc", "version": "14.2.0-4ubuntu2~24.04.1", "name": "c++", "homepage": "http://gcc.gnu.org/", "description": "GNU Standard C++ Library v3" } ], "_vignettes": [ { "source": "memshare.Rmd", "filename": "memshare.html", "title": "memshare: Fast Shared-Memory Parallelism in R", "author": "Michael C. Thrun and Julian Märte", "engine": "knitr::rmarkdown", "headings": [ "Why memshare?", "Install", "5‑minute tour", "1) Column-wise work on a matrix (memApply)", "2) List workloads (memLapply)", "3) Low-level control (register / retrieve / release)", "Concepts that matter", "Common patterns", "Feature map over columns (fast and memory-light)", "Multiple passes on the same data", "Tips and best practices", "Troubleshooting", "Essentials", "References " ], "created": "2025-12-04 08:41:23", "modified": "2026-05-04 14:32:26", "commits": 2 } ], "_score": 5.987666264926275, "_indexed": true, "_nocasepkg": "memshare", "_universes": [ "mthrun" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.1.1", "date": "2026-06-03T11:34:25.000Z", "distro": "noble", "arch": "aarch64", "commit": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "fileid": "3378db99d7f794b27a4ba20e0fcf75abbd1cc8def5d55f29f8aa5158e8e38922", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292" }, { "r": "4.7.0", "os": "linux", "version": "1.1.1", "date": "2026-06-03T11:34:27.000Z", "distro": "noble", "arch": "x86_64", "commit": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "fileid": "bc7b72b15a9e2545ebbe714c423a81c0265a55165ce2505a0bd42450de74736e", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292" }, { "r": "4.6.0", "os": "linux", "version": "1.1.1", "date": "2026-06-03T11:34:25.000Z", "distro": "noble", "arch": "aarch64", "commit": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "fileid": "1e143ada56ac412c92bfd84131723340f3eadc748b6d0a2323608d462abbf917", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292" }, { "r": "4.6.0", "os": "linux", "version": "1.1.1", "date": "2026-06-03T11:34:21.000Z", "distro": "noble", "arch": "x86_64", "commit": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "fileid": "11430b8d33d1f093118fb04a2898f435108991e7caf6931c553d5214816fbbce", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292" }, { "r": "4.5.3", "os": "mac", "version": "1.1.1", "date": "2026-06-03T11:33:40.000Z", "arch": "aarch64", "commit": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "fileid": "f6facba56bcccd3cfd18e0ea5de99de8df2c6adf2b56a6c58c4b1f553b39182a", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292" }, { "r": "4.5.3", "os": "mac", "version": "1.1.1", "date": "2026-06-03T11:35:36.000Z", "arch": "x86_64", "commit": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "fileid": "04034c04004130b3ec8551b4913890faecbe2a16667e0c300c0f35a3df58c484", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292" }, { "r": "4.6.0", "os": "mac", "version": "1.1.1", "date": "2026-06-03T11:33:44.000Z", "arch": "aarch64", "commit": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "fileid": "3b231adc92ca152832b2663d40206376b2a3d247af5c72e6d816333e2bab06b9", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292" }, { "r": "4.6.0", "os": "mac", "version": "1.1.1", "date": "2026-06-03T11:34:41.000Z", "arch": "x86_64", "commit": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "fileid": "6e5c4cca2cb78501fc3c26413c1cab431987e4102d2b202d29082cb511bc483b", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292" }, { "r": "4.7.0", "os": "win", "version": "1.1.1", "date": "2026-06-03T11:34:51.000Z", "arch": "x86_64", "commit": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "fileid": "677690733c77d3e85f16075239b33ad93d860b6633b619a2a0bd3f4d4c208caa", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292" }, { "r": "4.5.3", "os": "win", "version": "1.1.1", "date": "2026-06-03T11:33:52.000Z", "arch": "x86_64", "commit": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "fileid": "2269f27ee3def3de2c130d7b2008f8517d141662d76f9c41062595cf3fd76dd5", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292" }, { "r": "4.6.0", "os": "win", "version": "1.1.1", "date": "2026-06-03T11:34:34.000Z", "arch": "x86_64", "commit": "2321fde90e46ac664686e505b6ee85a80b1ed5e1", "fileid": "6de1d483b773e5bdf06afcf6d209db3a15c4537289415adeb4b62b9f5743440d", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/mthrun/actions/runs/26881793292" } ] }