OSchip
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OpenBLAS

 
			
			   
				 
					
						
						
							
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    <title>OpenBLAS : An optimized BLAS library</title>

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          <a id="forkme_banner" href="http://github.com/OpenMathLib/OpenBLAS">View on GitHub</a>

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          <h1 id="project_title">OpenBLAS</h1>
          <h2 id="project_tagline">An optimized BLAS library</h2>

          <section id="downloads">
            <a class="zip_download_link" href="https://github.com/OpenMathLib/OpenBLAS/releases/download/v0.3.30/OpenBLAS-0.3.30.zip">Download this project as a .zip file</a>
            <a class="tar_download_link" href="https://github.com/OpenMathLib/OpenBLAS/releases/download/v0.3.30/OpenBLAS-0.3.30.tar.gz">Download this project as a tar.gz file</a>
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        <p>OpenBLAS is an optimized BLAS library based on <a href="https://www.tacc.utexas.edu/research-development/tacc-software/gotoblas2">GotoBLAS2</a> 1.13 BSD version. Please read the documents on <a href="http://github.com/xianyi/OpenBLAS/wiki">OpenBLAS wiki</a>.</p>
        <h3>Binary Packages</h3>
        <p>We strive to provide <a href="https://sourceforge.net/projects/openblas/files">binary packages</a> for the following platform.</p>
        <ul>
          <li>Windows x86/x86_64/arm64</li>
        </ul>
	(hosted on sourceforge.net; if required the mingw runtime dependencies can be found in the 0.2.12 folder there)<br>
	Note that while the binaries may be slow to arrive on sourceforge.net at the moment, they can also be found in the Releases section of the github site,
	      <a href="https://github.com/OpenMathLib/OpenBLAS/releases">https://github.com/OpenMathLib/OpenBLAS/releases</a>.
	      
	Binaries for other platforms are usually available on the sites listed in <a href="https://github.com/OpenMathLib/OpenBLAS/wiki/Precompiled-installation-packages">the OpenBLAS Wiki</a> 
        <h3>Install from Source</h3>
        <p>Please read <a href="https://github.com/OpenMathLib/OpenBLAS/wiki/User-Manual">User Manual</a> and <a href="https://github.com/OpenMathLib/OpenBLAS/wiki/Installation-Guide">Installation Guide</a></p>
	<p>Full project documentation (that also covers topics like installing from source) is available <a href="docs/"> here</a> - this builds on and will eventually replace the wiki</p>      
        <h3>Changelog</h3>
        <p>The current release is 0.3.30 version created Jun 19, 2025. Please refer to the <a href="https://github.com/OpenMathLib/OpenBLAS/blob/develop/Changelog.txt">changelog file</a> for notable changes. 
	<!-- Here is the <a href="dgemm_snb_1thread.png">single thread DGEMM</a> performance result on desktop Sandy Bridge.</p> -->
        <h3>License</h3>
        <p>BSD</p>
        <h3>Developers</h3>
        <p>Current Developers: <a href="http://xianyi.github.io">Zhang Xianyi</a>, Martin Kroeker<p>
        <p>Previous Developers:</p>
        <ul>
	  <li>Werner Saar</li>	
	  <li>Wang Qian</li>	
          <li>Zaheer Chothia</li>
          <li>Chen Shaohu (Optimized GEMV on the Loongson-3A processor)</li>
          <li>Luo Wen (Intern, Testing Level 2 BLAS)</li>
        </ul>
        <h3>Contributors</h3>
        <p>Please check <a href="https://github.com/OpenMathLib/OpenBLAS/blob/develop/CONTRIBUTORS.md">CONTRIBUTORS.md</a>.</p>
        <h3>Issues</h3>
        <p>Please use the issue tracker at <a href="https://github.com/OpenMathLib/OpenBLAS/issues">github.com/OpenMathLib/OpenBLAS/issues</a> for bug
		reports and suggestions.</p>
        <h3>FAQ</h3>
        <p>Please read our <a href="https://github.com/OpenMathLib/OpenBLAS/wiki/faq">wiki pages</a>.</p>
        <h3>Donation</h3>
        <p>Please read  <a href="https://github.com/OpenMathLib/OpenBLAS/wiki/Donation">this wiki page</a>. </p>
        <h3>Contact</h3>
        <p><a href="https://groups.google.com/forum/#!forum/openblas-users">Users mailing list</a> </p>
        <h3>Download</h3>
        <p>You can download this project in either
          <a href="https://github.com/OpenMathLib/OpenBLAS/releases/download/v0.3.30/OpenBLAS-0.3.30.zip">zip</a> or
          <a href="https://github.com/OpenMathLib/OpenBLAS/releases/download/v0.3.30/OpenBLAS-0.3.30.tar.gz">tar</a> formats.<br>
	 (md5 checksums are a6075d90482591784da1dec6451d66aa for the zip and 8db3d57f4d4485c6ae3f21ea465660e7 for the tar.gz package)
        </p>
        <p>You can also clone the project with <a href="https://git-scm.com">Git</a>
        by running:
        <pre>$ git clone https://github.com/OpenMathLib/OpenBLAS.git</pre>
        </p>
	<p>(Note that the project was moved out from under Xianyi's personal repository into the OpenMathLib organization 
	 in the summer of 2023 purely for practical reasons. Any old links referring to github.com/xianyi/OpenBLAS
	 are automatically forwarded by github to the new location.)</p>      
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        <p class="copyright">OpenBLAS maintained by <a href="http://xianyi.github.io">Zhang Xianyi</a></p>
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