AMReX 26.03

What's Changed

• Fix access specifier with HDF5 enabled by @gardner48 in #4921
• ParmParse: Add support for AMREX_USE_GPU macro by @WeiqunZhang in #4927
• Added multi-array version of EBData by @ankithadas in #4929
• CI: Enable MPI in CUDA test on Windows by @WeiqunZhang in #4869
• Reducer: New wrapper class for ReduceOps and ReduceData by @WeiqunZhang in #4933
• Add more Doxygen comments to Array4 by @WeiqunZhang in #4935
• Generalize SIMD Single Source Design by @ax3l in #4924
• Add more doxygen comments to Array by @WeiqunZhang in #4937
• Use Clang-Tidy 21 in CIs by @WeiqunZhang in #4939
• FindAMReXFFTW.cmake Support Native Threading by @ax3l in #4934
• FFTW CMake: Hint More Lib Paths (Windows) by @ax3l in #4940
• Test: SIMD by @ax3l in #4938
• Protect from using MarchingCubes if not 3D by @cgilet in #4946
• ParticleContainerToBlueprint: Allocator (2) by @ax3l in #4948
• Fix: AMReX w/ OpenMP and Ignore FFTW OMP by @ax3l in #4941
• SENSEI: Allocator by @ax3l in #4949
• SYCL: Add a new path for big kernels by @WeiqunZhang in #4952
• Guard againt potential OOB error in ParticleContainer OK() by @cgilet in #4951
• Respect NoSync region in FabArray::Copy and setBndry by @WeiqunZhang in #4955
• CI: Fix clang-tidy cache by @WeiqunZhang in #4944
• Doc: Details on AMREX_DEFAULT_INIT by @ax3l in #4974
• Doxygen FFT by @WeiqunZhang in #4975
• prevent auto-converting const char * to bool in ParmParse::add by @charlesgwaldman in #4969
• Fix (currently latent) bug with Particles + tiling + GPU by @atmyers in #4973
• Fix (currently latent) bug with pure SoA particles if periodic_shift … by @atmyers in #4972
• Fix particle communication bug when calling RedistributeCPU but with … by @atmyers in #4970
• Follow-on to #4973 by @atmyers in #4978
• Fix host_idcpu to use finest_level_in_file when restarting [Particles] [IO] by @atmyers in #4971
• [LinearSolvers] Fix bug in setBCoeffs(Vector) by @WeiqunZhang in #4968
• [LinearSolvers][1D Overset] Fix missing component index by @WeiqunZhang in #4967
• Add Gpu::SyncAtExit and Gpu::streamSyncActive by @WeiqunZhang in #4956
• NonLocalBC: Fix Boolean condition by @WeiqunZhang in #5065
• Fix SYCL device property init by @WeiqunZhang in #5066
• BaseFab::indexFromValue: Fix index typo by @WeiqunZhang in #5067
• EB VTK writer: Fix attribute name by @WeiqunZhang in #5069
• AmrMesh: Fix invalid iterator range by @WeiqunZhang in #5068
• add ReduceToPlaneMF2Patchy by @BenWibking in #4958
• Improve clarity of AMR assign grid function by @atmyers in #5072
• Use Long instead of int for maxnextid in pre/post particle IO by @atmyers in #5073
• Fix sub-communicator in CPU fillNeighbors() by @atmyers in #5077
• assert that pureSoA containers have at least SpaceDim real components by @atmyers in #5076
• Use size_t instead of int for buffer offset in CPU fillNeighbors by @atmyers in #5078
• Print/PrintToFile: Fix potential MPI_Comm issue by @WeiqunZhang in #5079
• Doxygen HYPRE by @WeiqunZhang in #5070
• AllGatherBoxes: Fix MPI type by @WeiqunZhang in #5081
• SUNDIALS alloc-failure-output-pointer by @ajnonaka in #5094
• SUNDIALS Stale Flag by @ajnonaka in #5092
• Fix impicit MRI configuration calls by @gardner48 in #5093
• PoissonHybrid: Validate length of dz by @WeiqunZhang in #5085
• R2X: Assert zero-based domain indexing by @WeiqunZhang in #5084
• FFT: Early abort for unsupported path by @WeiqunZhang in #5083
• 1D CurlCurl: Update variable beta smoother for consistence by @WeiqunZhang in #5082
• Fix GPU memory issue in the ReduceToPlanePatchy test by @WeiqunZhang in #5086
• Update CHANGES for 26.03 by @WeiqunZhang in #5102

Full Changelog: 26.02...26.03

AMReX 26.02

What's Changed

• Correct verbose output with SUNDIALS MRI methods by @gardner48 in #4876
• Use PolymorphicArenaAllocator in the SOAParticle test by @atmyers in #4859
• FFTW: Always initialize FFTW for users when OMP is on by @WeiqunZhang in #4861
• Linear solver documentation: Add curl-curl, open bc and gmres by @WeiqunZhang in #4815
• Doxygen: Remove Fortran by @WeiqunZhang in #4879
• CI: Zenodo Validator by @ax3l in #4878
• Doxygen: Add topics by @WeiqunZhang in #4881
• Move MF ParallelFor out of namespace experimental by @WeiqunZhang in #4887
• Doxygen: Hide classes and functions that are implementation details by @WeiqunZhang in #4886
• Doxygen: Add topic Utilities by @WeiqunZhang in #4889
• Remove uses of Box range version of amrex::launch by @AlexanderSinn in #4890
• Remove identity Lambdas in amrex::launch by @AlexanderSinn in #4891
• ReduceOps.eval with BoxND by @AlexanderSinn in #4875
• Reuse GPU tags in MLEBABecLap::applyBC() by @ankithadas in #4882
• MFIter: Device sync optimization by @WeiqunZhang in #4897
• Fix a bug introduced in #4897 by @WeiqunZhang in #4898
• Convert Array4 to ArrayND by @ankithadas in #4868
• DistributionMapping: ConvertCostFromRealToLong by @WeiqunZhang in #4894
• Make IntVectND functions constexpr by @ankithadas in #4905
• MakeNewGrids: param to set number of grid iterations by @BenWibking in #4903
• Reuse Gpu tags in MLCellLinOp::applyBC() by @ankithadas in #4899
• FFTW: Remove cleanup to avoid potenial issues by @WeiqunZhang in #4908
• ArrayND: Add specialization for Array4 by @WeiqunZhang in #4900
• Fix bug in multi-ghost FillBoundary for the Alamo code by @WeiqunZhang in #4906
• EB: First batch of Marching Cubes by @WeiqunZhang in #4778
• SpMatrix: Generalize to rectangular shape and add transpose function by @WeiqunZhang in #4870
• ParmParse: Print parsed values as comments in prettyPrint by @WeiqunZhang in #4827
• Reserve space in particle redistribution by @WeiqunZhang in #4731
• Reapply "add a dependabot.yml to checkout github actions versions (#3704)" (#3710) by @WeiqunZhang in #4909
• CI: Update ccache by @WeiqunZhang in #4910
• Bump Jimver/cuda-toolkit from 0.2.19 to 0.2.30 by @dependabot[bot] in #4911
• Bump github/codeql-action from 3 to 4 by @dependabot[bot] in #4912
• Bump actions/cache from 4 to 5 by @dependabot[bot] in #4914
• Bump JamesIves/github-pages-deploy-action from 4.5.0 to 4.8.0 by @dependabot[bot] in #4915
• CI: Restrict push triggered runs to development branch by @WeiqunZhang in #4916
• CSR: Miss streamSynchronize in SYCL version of sortCSR by @WeiqunZhang in #4917
• Bump actions/checkout from 5 to 6 by @dependabot[bot] in #4913
• Doxygen: Add topic on memory arenas and allocators by @WeiqunZhang in #4918
• GitHub Actions: Ignore 'dependabot/**' branches by @WeiqunZhang in #4919
• AMREX_HOST_DEVICE_FOR_[34]D_FLAG: Pass by reference in CPU code by @WeiqunZhang in #4920
• Update CHANGES for 26.02 by @WeiqunZhang in #4932

Full Changelog: 26.01...26.02

AMReX 26.01

What's Changed

• Add amrex::Gpu::freeAsync by @AlexanderSinn in #4804
• Hypre iterative ILU features by @itopcuoglu in #4818
• Fix comparison with zero warning by @atmyers in #4828
• Workaround for MPICH MPIX_Query_cuda_support assertion error by @WeiqunZhang in #4824
• FFT::PoissonHybrid: Fix cases with nx or ny being 1 by @WeiqunZhang in #4829
• Update CONTRIBUTING.md for whitespace policy by @WeiqunZhang in #4833
• Improve out of memory error message by @AlexanderSinn in #4831
• clear freeAsync buffer before allocating new memory by @AlexanderSinn in #4832
• Generalize diffmultifab routine to allow for different BoxArrays cove… by @asalmgren in #4836
• Add SArena: The_Arena wrapper using Gpu::freeAsync by @AlexanderSinn in #4835
• MLMG: Fix a Few MF Includes by @ax3l in #4841
• Gitlab CI: PR title must be properly escaped by @WeiqunZhang in #4845
• fix: SpMatrix::prepare_comm in case of no communication necessary by @julien-fausty-gev in #4844
• CUDA_ARCH for SUNDIALS build by @ajnonaka in #4846
• Workaround for MSVC by @WeiqunZhang in #4842
• Update GPU section of the documentation by @atmyers in #4816
• Improve documentation of OverrideSync by @EZoni in #4849
• Documentation: GPU Synchronization Behavior by @WeiqunZhang in #4851
• Update CITATION by @asalmgren in #4852
• Refactor EB slope functions by @WeiqunZhang in #4853
• Refactor EB slope functions again by @WeiqunZhang in #4854
• AlgVector: Fix printToFile for CPU builds by @WeiqunZhang in #4843
• Deterministic MLMG by @chongchonghe in #4855
• Update GNUMake for Catalyst 2.0 by @jordanm304 in #4863
• add amrex::Math::exp10() by @zingale in #4864
• Parser: Fix bugs in optimization by @WeiqunZhang in #4866
• Update CHANGES for 26.01 by @WeiqunZhang in #4874

New Contributors

• @itopcuoglu made their first contribution in #4818
• @julien-fausty-gev made their first contribution in #4844
• @EZoni made their first contribution in #4849
• @chongchonghe made their first contribution in #4855

Full Changelog: 25.12...26.01

AMReX 25.12

What's Changed

• Fix PODVector shrink_to_fit() with nonzero size by @AlexanderSinn in #4748
• Minor optimization of ReduceToPlaneMF2 by @WeiqunZhang in #4745
• Refactor MLStateRedist to run faster when many cells have no nbors by @asalmgren in #4742
• Fix cmake options table in documentation by @atmyers in #4749
• amrex::Initialize: Add optional argument of device ID by @WeiqunZhang in #4741
• Catch Sphinx build errors in CI by @atmyers in #4751
• use atomic add in SRD algorithm by @asalmgren in #4754
• PODVector: Add extra capacity by @WeiqunZhang in #4734
• Remove old Fortran style from particle-mesh documentation by @atmyers in #4761
• Add information about generating particles for GPU codes to the docs by @atmyers in #4760
• Add GrowthStrategy argument to PODVector resize and reserve by @AlexanderSinn in #4763
• Add ParmParse::Add for AMREX_NUM by @WeiqunZhang in #4765
• Make htod_memcpy_async available on CPU by @AlexanderSinn in #4640
• AMREX_ENUM: Fix enumerator = int by @WeiqunZhang in #4766
• Doc: AMREX_ENUM Functions by @ax3l in #4764
• Fix a typo in Doxygen for enableFPExcept by @WeiqunZhang in #4768
• ParmParse cpp no const by @ax3l in #4769
• Modernize nvtx3 Include by @ax3l in #4774
• Update particle docs for expanded idcpu range by @atmyers in #4758
• Add section on pure SoA particles to documentation by @atmyers in #4759
• Add amrex::Math::rsqrt by @AlexanderSinn in #4777
• PC::make_alike<Allocator> Change Default by @ax3l in #4771
• CI: Free disk space in CUDA CIs by @WeiqunZhang in #4781
• ParticleContainerToBlueprint: Allocator by @ax3l in #4776
• Add Amr::derive overloads for all levels by @mirenradia in #4780
• Restart w/ out-of-bounds Particles by @ax3l in #4783
• [Docs] Use scrollbar when table is too wide. by @atmyers in #4784
• Environment variable: AMREX_THE_ARENA_INIT_SIZE by @WeiqunZhang in #4786
• Fix a few CI tests for single precision by @WeiqunZhang in #4785
• Add HPSF GitLab CI by @WeiqunZhang in #4788
• Enable Intel in GitLab CI by @WeiqunZhang in #4789
• Add index and size information to Vector assertion message by @WeiqunZhang in #4790
• Add a note describing the GitLab CI setup by @WeiqunZhang in #4791
• Re-enable some SYCL tests by @WeiqunZhang in #4792
• Gitlab CI: Simplify status checker sleep logic by @WeiqunZhang in #4793
• Add int overflow assert to PrefixSum by @AlexanderSinn in #4794
• Use GitHub App to report CI status by @WeiqunZhang in #4796
• GitLib CI: Fix CI status check by @WeiqunZhang in #4798
• GitLab CI: No need to wait for gitlab pipeline to finish by @WeiqunZhang in #4797
• RNG on GPU: Assertion it's not in OMP parallel region by @WeiqunZhang in #4799
• [WIP] Fix loop bounds in selectActualNeighbors by @atmyers in #4809
• Mention that particles with invalid ids are removed by default and be explicit about allowed ranges by @atmyers in #4807
• Fix copy/paste error in ParticleInterpolator docstrings by @atmyers in #4808
• Add an FAQ entry about a certain GPU-aware MPI error by @jrood-nrel in #4811
• Add partitionParticles version that skips reduction by @AlexanderSinn in #4803
• Fix compile error with Conduit + Particles by @jordanm304 in #4813
• Notes on how agglomeration works in MLMG by @ajnonaka in #4602
• Update CHANGES for 25.12 by @WeiqunZhang in #4823

Full Changelog: 25.11...25.12

AMReX 25.11

What's Changed

• Add function transposeCtoF for transposing multi-d array by @WeiqunZhang in #4681
• EB: Fix corner case by @WeiqunZhang in #4687
• Fix Windows/MSVC members of template class and include for C++20 by @ffambri in #4688
• Fix compilation issue for old CUDA arch on Windows by @WeiqunZhang in #4686
• Allow hypre and petsc in 1d build by @WeiqunZhang in #4682
• Add GNUMake changes for building on Tuolumne (LLNL) by @dpgrote in #4691
• Hypre & PETSc in 1d build by @WeiqunZhang in #4692
• SumBoundary reimplementation by @WeiqunZhang in #4658
• Remove Codeplay CIs by @WeiqunZhang in #4696
• fix spelling, remove misspelled words from .codespell-ignore-words by @charlesgwaldman in #4699
• Fix a 1d bug in #4658 by @WeiqunZhang in #4700
• CUDA CI: Add -Werror=deprecated-declarations by @WeiqunZhang in #4702
• OpenBC FFT Solver: Fix 2d mode bug by @WeiqunZhang in #4703
• Reduce::MinMax: fix function name by @WeiqunZhang in #4704
• Improve usability of amrex::Gpu::Buffer by @AlexanderSinn in #4697
• Fix a bug in EB FillPatch for face MultiFab by @WeiqunZhang in #4705
• Improve ParReduce doxygen documentation by @WeiqunZhang in #4707
• Add reserve methods to ParticleTile, ArrayOfStructs, and StructOfArrays by @atmyers in #4708
• Update out of memory error message by @WeiqunZhang in #4709
• CHANGES -> CHANGES.md for better fomratting by @WeiqunZhang in #4713
• Add OpenSSF Best Practices badge by @WeiqunZhang in #4711
• Add SECURITY.md by @WeiqunZhang in #4712
• Add Build with Explicit Multi-Level Geometry for EB by @jmsexton03 in #4714
• Allow std::string "name" arguments for ParmParse methods by @charlesgwaldman in #4695
• Fix a typo in documentation by @WeiqunZhang in #4717
• Parser: minor update by @WeiqunZhang in #4718
• Robustify file renaming by @WeiqunZhang in #4721
• Minor Updates by @WeiqunZhang in #4723
• align fcompare behavior with particle_compare when metadata differ by @BenWibking in #4724
• VisMF::Read: Allow different number of ghost cells by @WeiqunZhang in #4725
• Remove final on Fapply, Fsmooth, FFlux, normalize, supportNSolve by @cgilet in #4727
• Cray MPICH/ROCm compatibility for GPU-aware MPI by @jaharris87 in #4729
• FFT hybrid Poisson solver: Add support for batched 2d solves by @WeiqunZhang in #4732
• Fix unused parameter warnings by @jrood-nrel in #4736
• Fix documentation of Print(rank) by @WeiqunZhang in #4740
• Make transposeCtoF asynchronous by @WeiqunZhang in #4738
• Allow C++20 HIP builds by @BenWibking in #4739
• Updates for oneAPI 2025.03 by @WeiqunZhang in #4730
• Update CHANGES for 25.11 by @WeiqunZhang in #4747

New Contributors

• @ffambri made their first contribution in #4688

Full Changelog: 25.10...25.11

AMReX 25.10

What's Changed

• Fix ToString for old compiler by @AlexanderSinn in #4638
• Curl Curl Solver: Support for 1D spherical and 1D cylindrical by @WeiqunZhang in #4611
• Remove sycl::nd_item<1> from TagParallelFor interface by @AlexanderSinn in #4646
• Instructions for loading non plt-prefix plotfiles in paraview by @ajnonaka in #4651
• Fix for CUDA 13 by @WeiqunZhang in #4648
• ParmParse: Add prettyPrintUsedInputs and prettyPrintUnusedInputs by @WeiqunZhang in #4652
• Print out hypre version by @victorapm in #4650
• Updated applyBC to use ParallelFor on Vector of tags for GPU builds by @ankithadas in #4619
• AMREX_ENUM: Cache String Map by @ax3l in #4643
• AMReX Enum: Underlying Value by @ax3l in #4616
• AMREX_ENUM: getEnumNameValuePairs returns by const& instead of value by @WeiqunZhang in #4654
• Use p.id().is_valid() consistently by @AlexanderSinn in #4635
• Fix various Doxygen issues by @WeiqunZhang in #4633
• Adding support to memory collection of Particles and MultiFabs within a grid by @jessdagostini in #4629
• HIP CI: Switch to 7.0 in two tests by @WeiqunZhang in #4662
• Disable Codeplay CIs by @WeiqunZhang in #4665
• Add range-based for and ND to BoxIterator by @AlexanderSinn in #4668
• Remove no-op Fortran *_destroy blocks (#4666) by @zjibben in #4667
• OpenBC FFT Solver: Fix a 2d mode bug. by @WeiqunZhang in #4671
• add support for make flags to the build info script by @zingale in #4672
• GNU Make: Add new option DEBUG_OPT_LEVEL by @WeiqunZhang in #4674
• Update CHANGES for 25.10 by @WeiqunZhang in #4690

New Contributors

• @victorapm made their first contribution in #4650
• @jessdagostini made their first contribution in #4629

Full Changelog: 25.09...25.10

AMReX 25.09

What's Changed

• Modify how we interpolate velocity from faces to particle position; f… by @asalmgren in #4598
• Delete outdated statement in Particle documentation by @BenWibking in #4596
• SIMD: Remove Unnecessary Namespaces by @ax3l in #4600
• Improvements to AMREX_ASSERT by @AlexanderSinn in #4581
• Add ParallelForOMP by @WeiqunZhang in #4595
• Add ToString function for array and tuple by @AlexanderSinn in #4584
• Fix ParallelForOMP introduced in #4595 by @WeiqunZhang in #4604
• Improve support for Particles with PolymorphicArenaAllocator by @AlexanderSinn in #4603
• Rename some CI names by @WeiqunZhang in #4608
• SIMD: Portable Masks, C++20 by @ax3l in #4607
• Add ParamParse::getPrefix by @WeiqunZhang in #4612
• Enable zero-sized Type in TypeMultiplier by @AlexanderSinn in #4617
• Bump up checkout action version by @WeiqunZhang in #4614
• Fix potential false sharing in ReduceOps.eval with OMP by @AlexanderSinn in #4618
• Enable OpenMP in addParticles by @atmyers in #4615
• Add explanatory comment to ParticleReduce by @atmyers in #4620
• Delay some synchronize calls in addParticles by @atmyers in #4623
• Fallback to default CUDA_ARCH if nvidia-smi fails by @hafeoz in #4624
• fix atomicSetID wrapper access by @jmsexton03 in #4625
• generalize the average_*_to_cellcenter routines to take IntVect ngrow… by @asalmgren in #4627
• Incorrect cross term sum for 2D EB terms in MLEBTensor by @ankithadas in #4626
• amrex::callNoinline: Call given function without inline by @WeiqunZhang in #4606
• Fix Bug in FaceConservativeLinear by @WeiqunZhang in #4630
• Fix a bug in #4623 by @WeiqunZhang in #4631
• Update CHANGES for 25.09 by @WeiqunZhang in #4639

New Contributors

• @hafeoz made their first contribution in #4624

Full Changelog: 25.08...25.09

AMReX 25.08

AMReX 25.08

AMReX 25.07

AMReX 25.07

AMReX 25.06

AMReX 25.06