https://wiki.radxa.com/mw/index.php?action=history&feed=atom&title=Rockpi4%2Fdev%2Finstall-opencl%2Fpt_BR 2026-06-14T11:55:03Z Revision history for this page on the wiki MediaWiki 1.23.3 https://wiki.radxa.com/mw/index.php?title=Rockpi4/dev/install-opencl/pt_BR&diff=3581&oldid=prev 2019-07-03T01:03:43Z

<p>Created page with &quot;{{rockpi4_header}} {{Languages|rockpi4/dev/install-opencl}} <a href="/Rockpi4" title="Rockpi4"> ROCK Pi 4</a> &gt; <a href="/Rockpi4/dev" class="mw-redirect" title="Rockpi4/dev"> Development</a> &gt; <a href="/Rockpi4/dev/install-opencl" title="Rockpi4/dev/install-opencl"> Install OpenCL</a> = Dr...&quot;</p> <p><b>New page</b></p><div>{{rockpi4_header}}<br /> {{Languages|rockpi4/dev/install-opencl}}<br /> [[rockpi4 | ROCK Pi 4]] &gt; [[rockpi4/dev | Development]] &gt; [[rockpi4/dev/install-opencl | Install OpenCL]]<br /> <br /> = Driver OpenCL funcionando no ROCK Pi 4 =<br /> <br /> == Instalação do pacote libmali ==<br /> <br /> $ sudo apt-get install rockchip-mali-midgard14<br /> $ sudo apt-get install rockchip-mali-midgard-dev<br /> <br /> == Verificação de funcionalidade com clpeak ==<br /> <br /> Para ver se o driver opencl funciona corretamente no ROCK Pi 4, use a ferramenta de benchmark '''clpeak'''<br /> <br /> $ sudo apt-get update &amp;&amp; sudo apt-get install cmake git<br /> $ git clone https://github.com/krrishnarraj/clpeak<br /> $ cd clpeak<br /> $ cmake . -DCMAKE_CXX_COMPILER=g++<br /> $ make<br /> $ ./clpeak<br /> <br /> Depois de executar o comando '''clpeak''', mostrará as seguintes saídas:<br /> <br /> Platform: ARM Platform<br /> Device: Mali-T860<br /> Driver version : 1.2 (Linux ARM64)<br /> Compute units : 4<br /> Clock frequency : 200 MHz<br /> <br /> Global memory bandwidth (GBPS)<br /> float : 3.68<br /> float2 : 5.95<br /> float4 : 6.70<br /> float8 : 5.59<br /> float16 : 5.15<br /> <br /> Single-precision compute (GFLOPS)<br /> float : 25.12<br /> float2 : 47.47<br /> float4 : 46.81<br /> float8 : 41.68<br /> float16 : 46.45<br /> <br /> Half-precision compute (GFLOPS)<br /> half : 23.11<br /> half2 : 50.10<br /> half4 : 98.10<br /> half8 : 93.34<br /> half16 : 88.61<br /> <br /> Double-precision compute (GFLOPS)<br /> double : 5.85<br /> double2 : 3.27<br /> double4 : 20.97<br /> double8 : 20.65<br /> double16 : 20.40<br /> <br /> Integer compute (GIOPS)<br /> int : 22.67<br /> int2 : 49.85<br /> int4 : 47.96<br /> int8 : 34.30<br /> int16 : 47.78<br /> <br /> Transfer bandwidth (GBPS)<br /> enqueueWriteBuffer : 1.24<br /> enqueueReadBuffer : 1.31<br /> enqueueMapBuffer(for read) : 5.22<br /> memcpy from mapped ptr : 2.56<br /> enqueueUnmap(after write) : 5.32<br /> memcpy to mapped ptr : 2.73<br /> <br /> Kernel launch latency : 307.37 us<br /> <br /> == Solução de problemas==<br /> <br /> * Poste seu problema no fórum: https://forum.radxa.com/c/dev</div>

Samuca