{"id":15722253,"url":"https://github.com/chapel-lang/chapel-hello-world","last_synced_at":"2025-08-17T01:32:15.354Z","repository":{"id":229065353,"uuid":"775559661","full_name":"chapel-lang/chapel-hello-world","owner":"chapel-lang","description":"A 'Hello, world!' repository and GitHub Codespace template in Chapel","archived":false,"fork":false,"pushed_at":"2025-03-21T20:03:55.000Z","size":13,"stargazers_count":1,"open_issues_count":0,"forks_count":1,"subscribers_count":17,"default_branch":"main","last_synced_at":"2025-04-04T23:04:09.558Z","etag":null,"topics":["chapel","concurrency","demo","distributed-computing","example","gpu","high-performance-computing","language","open-source","parallel","parallel-computing","performance","scientific-computing","works-with-codespaces"],"latest_commit_sha":null,"homepage":"https://chapel-lang.org/","language":"Chapel","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/chapel-lang.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"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":"2024-03-21T16:03:16.000Z","updated_at":"2025-03-21T20:03:50.000Z","dependencies_parsed_at":"2024-10-29T20:12:51.663Z","dependency_job_id":null,"html_url":"https://github.com/chapel-lang/chapel-hello-world","commit_stats":{"total_commits":19,"total_committers":3,"mean_commits":6.333333333333333,"dds":0.368421052631579,"last_synced_commit":"b256421ed31d0f3ab3ced60c1aeb9a75a014f16c"},"previous_names":["chapel-lang/chapel-hello-world"],"tags_count":0,"template":true,"template_full_name":null,"purl":"pkg:github/chapel-lang/chapel-hello-world","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chapel-lang%2Fchapel-hello-world","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chapel-lang%2Fchapel-hello-world/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chapel-lang%2Fchapel-hello-world/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chapel-lang%2Fchapel-hello-world/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/chapel-lang","download_url":"https://codeload.github.com/chapel-lang/chapel-hello-world/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chapel-lang%2Fchapel-hello-world/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":270796224,"owners_count":24647320,"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":"2025-08-16T02:00:11.002Z","response_time":91,"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":["chapel","concurrency","demo","distributed-computing","example","gpu","high-performance-computing","language","open-source","parallel","parallel-computing","performance","scientific-computing","works-with-codespaces"],"created_at":"2024-10-03T22:05:50.552Z","updated_at":"2025-08-17T01:32:13.514Z","avatar_url":"https://github.com/chapel-lang.png","language":"Chapel","funding_links":[],"categories":[],"sub_categories":[],"readme":"# 'Hello, world!' in Chapel\n\n[Chapel](https://github.com/chapel-lang/chapel/) is a programming language for productive parallel computing. This repository contains starter code for a Chapel project. Please see the [Learning Chapel](https://chapel-lang.org/learning.html) page to learn more of the language's features.\n\nTo get started with this template, you can either use [GitHub Codespaces](#using-a-codespace) or [your own machine](#using-your-machine).\n\nFor more code samples, consider trying out the [Primers](https://chapel-lang.org/docs/primers/),\nor the [many programs from a past Chapel tutorial](https://github.com/chapel-lang/chapel/tree/main/test/exercises/Oct2023tutorial).\n\n## Using a Codespace\n\n\u003e :warning: Because Codespaces are a virtualized environment running on shared hardware with a modest core count, don't expect parallelism or performance observed here to be reflective of what a native installation of Chapel can achieve.\n\nThe `chapel-hello-world` repo includes a `devcontainer.json` file, making it usable from GitHub Codespaces. When viewing this repository from GitHub's UI, click __Use this template \u003e Open in a codespace__ to get started. The codespace includes the Visual Studio Code extension for Chapel, and tools such as [`chpl-language-server`](https://chapel-lang.org/docs/main/tools/chpl-language-server/chpl-language-server.html) and [`chplcheck`](https://chapel-lang.org/docs/main/tools/chplcheck/chplcheck.html).\n\nIn the Codespace, compile Chapel programs using the __Terminal__ tab by using the `chpl` compiler:\n\n```bash\nchpl hello.chpl\n./hello\n```\n\nAlthough the Codespace is set to a single-locale (single-node) mode by default, you can simulate multiple nodes by setting the `CHPL_COMM` environment variable to `gasnet` when compiling.\n\n```bash\n# Compile a program that distributes computation to multiple nodes\nCHPL_COMM=gasnet chpl examples/hello4-datapar-dist.chpl\n\n# Run hello using two simulated nodes\n./hello4-datapar-dist -nl 2 \n```\n\nTo avoid having to include `CHPL_COMM` in each compilation command, you can\n`export` it:\n\n```bash\nexport CHPL_COMM=gasnet\nchpl examples/hello4-datapar-dist.chpl\n./hello4-datapar-dist -nl 2 \n```\n\n## Using Your Machine\n\nPlease follow the instructions on the [Download Chapel](https://chapel-lang.org/download.html) page to get set up with the Chapel compiler `chpl`. From there, you can compile and run the `hello.chpl` file in this repository as follows:\n\n```bash\nchpl hello.chpl\n./hello\n```\n\nTo make use of multiple nodes (or to simulate multi-node execution), please\nrefer to [Multilocale Chapel Execution](https://chapel-lang.org/docs/usingchapel/multilocale.html).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchapel-lang%2Fchapel-hello-world","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fchapel-lang%2Fchapel-hello-world","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchapel-lang%2Fchapel-hello-world/lists"}