{"id":17774676,"url":"https://github.com/jiegec/rvv-kernels","last_synced_at":"2025-04-21T23:31:25.357Z","repository":{"id":68570864,"uuid":"459901628","full_name":"jiegec/rvv-kernels","owner":"jiegec","description":"Implements kernels with RISC-V Vector","archived":false,"fork":false,"pushed_at":"2023-03-24T16:15:51.000Z","size":95,"stargazers_count":22,"open_issues_count":0,"forks_count":2,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-04-01T16:55:54.336Z","etag":null,"topics":["riscv","rvv","vector"],"latest_commit_sha":null,"homepage":"","language":"Assembly","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/jiegec.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":"2022-02-16T07:45:19.000Z","updated_at":"2025-03-05T06:39:14.000Z","dependencies_parsed_at":null,"dependency_job_id":"486cd487-a2d0-4184-b560-c1d69f92b228","html_url":"https://github.com/jiegec/rvv-kernels","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jiegec%2Frvv-kernels","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jiegec%2Frvv-kernels/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jiegec%2Frvv-kernels/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jiegec%2Frvv-kernels/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/jiegec","download_url":"https://codeload.github.com/jiegec/rvv-kernels/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":250150700,"owners_count":21383214,"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","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":["riscv","rvv","vector"],"created_at":"2024-10-26T21:51:57.564Z","updated_at":"2025-04-21T23:31:25.079Z","avatar_url":"https://github.com/jiegec.png","language":"Assembly","funding_links":[],"categories":[],"sub_categories":[],"readme":"# rvv-kernels\n\nImplements kernels with RISC-V Vector. Requires LLVM 14.\n\nKernels included:\n\n- asum\n- axpy\n- dot\n- nrm2\n- gemm\n- spmv\n- stencil\n\nGenerated assemblies are also provided in this repo for reference.\n\n## How to build\n\nYou need:\n\n1. Clang+LLVM 14\n2. RISC-V GNU Toolchain\n\nTo build with system clang++-14:\n\n```shell\nmake GCC_TOOLCHAIN_DIR=/path/to/gnu-toolchain CXX=/usr/bin/clang++-14 -j8\n```\n\nTo build with upstream clang:\n\n```shell\nmake GCC_TOOLCHAIN_DIR=/path/to/gnu-toolchain LLVM=/path/to/llvm -j8\n```\n\n## How to run in spike\n\nTo run vectorized kernel in spike:\n\n```shell\nmake GCC_TOOLCHAIN_DIR=/path/to/gnu-toolchain CXX=/usr/bin/clang++-14 PK=/path/to/spike/bin/pk spike-xxx\n```\n\nSome examples:\n\n```shell\n$ make spike-axpy\naxpy disable vectorize: 8.02 us 0.25 gflops\naxpy compiler vectorize: 3.53 us 0.57 gflops\naxpy rvv: 6.02 us 0.33 gflops\naxpy rvv2: 6.04 us 0.33 gflops\n$ make spike-spmv\nspmv disable vectorize: 118.03 us 0.17 gflops\nspmv compiler vectorize: 85.05 us 0.24 gflops\nspmv rvv: 88.02 us 0.23 gflops\nspmv rvv2: 97.03 us 0.21 gflops\n```","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjiegec%2Frvv-kernels","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjiegec%2Frvv-kernels","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjiegec%2Frvv-kernels/lists"}