https://zhichen3.github.io/tags/amrex/Recent content in Amrex on zhiHugoen-usTue, 16 Jun 2026 00:00:00 -0400https://zhichen3.github.io/posts/amrex-basics/Tue, 16 Jun 2026 00:00:00 -0400https://zhichen3.github.io/posts/amrex-basics/<div class="ox-hugo-toc toc"> <div class="heading">Table of Contents</div> <ul> <li><a href="#dimensionality-macros--amrex-space-dot-h">Dimensionality Macros (<code>AMReX_SPACE.H</code>)</a> </li> <li><a href="#paralleldescriptor--amrex-paralleldescriptor-dot-h">ParallelDescriptor (<code>AMReX_ParallelDescriptor.H</code>)</a> </li> <li><a href="#amrex-array-types">AMReX Array Types</a> </li> <li><a href="#intvect--amrex-intvect-dot-h">IntVect (<code>AMReX_IntVect.H</code>)</a> <ul> <li><a href="#arithmetic-operations">Arithmetic Operations</a> </li> <li><a href="#refinement-and-coarsening">Refinement and Coarsening</a> </li> </ul> </li> <li><a href="#indextype--amrex-indextype-dot-h">IndexType (<code>AMReX_IndexType.H</code>)</a> </li> <li><a href="#box--amrex-box-dot-h">Box (<code>AMReX_Box.H</code>)</a> </li> <li><a href="#dim3-and-xdim3">Dim3 and XDim3</a> </li> <li><a href="#realbox--amrex-realbox-dot-h">RealBox (<code>AMReX_RealBox.H</code>)</a> </li> <li><a href="#geometry--amrex-geometry-dot-h">Geometry (<code>AMReX_Geometry.H</code>)</a> </li> <li><a href="#boxarray--amrex-boxarray-dot-h">BoxArray (<code>AMReX_BoxArray.H</code>)</a> </li> <li><a href="#distributionmapping--amrex-distributionmapping-dot-h">DistributionMapping (<code>AMReX_DistributionMapping.H</code>)</a> </li> <li><a href="#basefab">BaseFab</a> </li> <li><a href="#fabarray-multifab-and-imultifab">FabArray, MultiFab and iMultiFab</a> </li> <li><a href="#mfiter-without-tiling">MFIter without Tiling</a> </li> <li><a href="#loop-tiling">Loop Tiling</a> <ul> <li><a href="#what-is-loop-tiling">What is Loop Tiling?</a> </li> <li><a href="#mfiter-with-tiling">MFIter with Tiling</a> </li> </ul> </li> <li><a href="#parallelfor">ParallelFor</a> </li> </ul> </div> <!--endtoc--> <p><a href="https://github.com/amrex-codes/amrex" target="_blank" rel="noopener">AMReX</a> is a public software framework designed for building massively parallel block-structured adaptive mesh refinement applications. Here I keep track of the basic syntax or classes used in AMReX for my personal notes.</p>