A Cartesian grid embedded boundary method for Poisson's equation on irregular domains H Johansen, P Colella Journal of Computational Physics 147 (1), 60-85, 1998 | 506 | 1998 |

A Cartesian grid embedded boundary method for the heat equation on irregular domains P McCorquodale, P Colella, H Johansen Journal of Computational Physics 173 (2), 620-635, 2001 | 171 | 2001 |

Chombo software package for AMR applications design document M Adams | 121 | 2014 |

A fourth-order accurate finite-volume method with structured adaptive mesh refinement for solving the advection-diffusion equation Q Zhang, H Johansen, P Colella SIAM Journal on Scientific Computing 34 (2), B179-B201, 2012 | 61 | 2012 |

Data elevator: Low-contention data movement in hierarchical storage system B Dong, S Byna, K Wu, H Johansen, JN Johnson, N Keen 2016 IEEE 23rd International Conference on High Performance Computing (HiPC …, 2016 | 46 | 2016 |

Physics–dynamics coupling in weather, climate, and Earth system models: Challenges and recent progress M Gross, H Wan, PJ Rasch, PM Caldwell, DL Williamson, D Klocke, ... Monthly Weather Review 146 (11), 3505-3544, 2018 | 35* | 2018 |

An adaptive multiblock high-order finite-volume method for solving the shallow-water equations on the sphere P McCorquodale, P Ullrich, H Johansen, P Colella Communications in Applied Mathematics and Computational Science 10 (2), 121-162, 2015 | 26 | 2015 |

Cartesian grid embedded boundary finite difference methods for elliptic and parabolic partial differential equations on irregular domains HS Johansen University of California, Berkeley, 1997 | 26 | 1997 |

Toward exascale earthquake ground motion simulations for near-fault engineering analysis H Johansen, A Rodgers, NA Petersson, D McCallen, B Sjogreen, M Miah Computing in Science & Engineering 19 (5), 27-37, 2017 | 21 | 2017 |

Arbitrary-order conservative and consistent remapping and a theory of linear maps: Part II PA Ullrich, D Devendran, H Johansen Monthly Weather Review 144 (4), 1529-1549, 2016 | 19 | 2016 |

Sensitivity of mountain hydroclimate simulations in variable‐resolution CESM to microphysics and horizontal resolution AM Rhoades, PA Ullrich, CM Zarzycki, H Johansen, SA Margulis, ... Journal of Advances in Modeling Earth Systems 10 (6), 1357-1380, 2018 | 18 | 2018 |

Analyzing the Adaptive Mesh Refinement (AMR) characteristics of a high-order 2D cubed-sphere shallow-water model JO Ferguson, C Jablonowski, H Johansen, P McCorquodale, P Colella, ... Monthly Weather Review 144 (12), 4641-4666, 2016 | 16 | 2016 |

Delivering performance-portable stencil computations on CPUs and GPUs using Bricks T Zhao, S Williams, M Hall, H Johansen 2018 IEEE/ACM International Workshop on Performance, Portability and …, 2018 | 15 | 2018 |

A moving control volume approach to computing hydrodynamic forces and torques on immersed bodies N Nangia, H Johansen, NA Patankar, APS Bhalla Journal of Computational Physics 347, 437-462, 2017 | 13 | 2017 |

High-accuracy embedded boundary grid generation using the divergence theorem P Schwartz, J Percelay, T Ligocki, H Johansen, D Graves, D Devendran, ... Communications in Applied Mathematics and Computational Science 10 (1), 83-96, 2015 | 13 | 2015 |

Software Productivity for Extreme-Scale Science (2014) H Johansen, LC McInnes, D Bernholdt, J Carver, M Heroux, R Hornung, ... report on DOE Workshop, January, 13-14, 2014 | 13 | 2014 |

Exploiting reuse and vectorization in blocked stencil computations on CPUs and GPUs T Zhao, P Basu, S Williams, M Hall, H Johansen Proceedings of the International Conference for High Performance Computing …, 2019 | 12 | 2019 |

Parallel in situ detection of connected components in adaptive mesh refinement data X Zou, K Wu, DA Boyuka, DF Martin, S Byna, H Tang, K Bansal, TJ Ligocki, ... 2015 15th IEEE/ACM International Symposium on Cluster, Cloud and Grid …, 2015 | 11 | 2015 |

A fourth-order Cartesian grid embedded boundary method for Poisson’s equation D Devendran, D Graves, H Johansen, T Ligocki Communications in Applied Mathematics and Computational Science 12 (1), 51-79, 2017 | 8 | 2017 |

Collective I/O Optimizations for Adaptive Mesh Refinement Data Writes on Lustre File System D Devendran, S Byna, B Dong, B Van Straalen, H Johansen, N Keen, ... CUG, 2016 | 7 | 2016 |