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unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["benchmark","cad","comparison","constructive-solid-geometries","geometry","neutronics","simulation","validation"],"created_at":"2026-01-17T10:18:57.884Z","updated_at":"2026-01-17T10:18:58.049Z","avatar_url":"https://github.com/fusion-energy.png","language":"Python","funding_links":[],"categories":[],"sub_categories":[],"readme":"[![cad to dagmc](https://github.com/fusion-energy/model_benchmark_zoo/actions/workflows/ci_cad_to_dagmc.yml/badge.svg)](https://github.com/fusion-energy/model_benchmark_zoo/actions/workflows/ci_cad_to_dagmc.yml)\n\n[![cad to openmc](https://github.com/fusion-energy/model_benchmark_zoo/actions/workflows/ci_cad_to_openmc.yml/badge.svg)](https://github.com/fusion-energy/model_benchmark_zoo/actions/workflows/ci_cad_to_openmc.yml)\n\n# A collection of parametric CAD and equivalent Constructive Solid Geometry\n\nModels available both in Constructive Solid Geomtry (CSG) and CAD format for comparing neutronics simulations with both geometry types.\n\n| Model | Description |\n|---|---|\n| \u003cp align=\"center\"\u003e\u003cimg src=\"https://user-images.githubusercontent.com/8583900/262374951-5e711a8b-a3db-4476-8f56-03a620d74b93.png\" width=\"100\"\u003e\u003c/p\u003e | Cube |\n| \u003cp align=\"center\"\u003e\u003cimg src=\"https://user-images.githubusercontent.com/8583900/262374950-ef8696dd-adbc-4fd8-bd44-c5304e1d0709.png\" width=\"100\"\u003e\u003c/p\u003e | Sphere |\n| \u003cp align=\"center\"\u003e\u003cimg src=\"https://user-images.githubusercontent.com/8583900/262374954-20dee8fb-5199-4fc2-86a7-00452b6bdc89.png\" width=\"100\"\u003e\u003c/p\u003e | Nested sphere | \n| \u003cp align=\"center\"\u003e\u003cimg src=\"https://user-images.githubusercontent.com/8583900/262374945-aea2582b-1d5f-40b1-a77b-bef79dce50da.png\" width=\"100\"\u003e\u003c/p\u003e | Boxes in contact|\n| \u003cp align=\"center\"\u003e\u003cimg src=\"https://user-images.githubusercontent.com/8583900/284880533-c18e3345-52ec-4253-baa8-e1dbe2a52944.png\" width=\"100\"\u003e\u003c/p\u003e | Cylinder|\n| \u003cp align=\"center\"\u003e\u003cimg src=\"https://raw.githubusercontent.com/fusion-energy/model_benchmark_zoo/main/examples/nestedcylinder.png\" width=\"100\"\u003e\u003c/p\u003e | Nested cylinders |\n| \u003cp align=\"center\"\u003e\u003cimg src=\"https://raw.githubusercontent.com/fusion-energy/model_benchmark_zoo/main/examples/circulartorus.png\" width=\"100\"\u003e\u003c/p\u003e | Torus |\n| \u003cp align=\"center\"\u003e\u003cimg src=\"examples/nestedtorus.png\" alt=\"Nested Torus\" width=\"100\"\u003e\u003c/p\u003e | Nested tori |\n| \u003cp align=\"center\"\u003e\u003cimg src=\"https://raw.githubusercontent.com/fusion-energy/model_benchmark_zoo/main/examples/ellipticaltorus.png\" width=\"100\"\u003e\u003c/p\u003e | Elliptical torus |\n| \u003cp align=\"center\"\u003e\u003cimg src=\"https://github.com/fusion-energy/model_benchmark_zoo/blob/580db0c0368cccba7638bf9abfbcb31a18fe15e6/examples/simpletokamak.png?raw=true\" width=\"100\"\u003e\u003c/p\u003e | Simplified tokamak |\n| \u003cp align=\"center\"\u003e\u003cimg src=\"assets/oktavian.png\" width=\"100\"\u003e\u003c/p\u003e | Oktavian shere|\n| \u003cp align=\"center\"\u003e\u003cimg src=\"https://raw.githubusercontent.com/fusion-energy/model_benchmark_zoo/main/examples/tetrahedral.png\" width=\"100\"\u003e | Tetrahedrons |  \n| \u003cp align=\"center\"\u003e\u003cimg src=\"examples/two_tetrahedrons.png\" alt=\"Two Tetrahedrons\" width=\"100\"\u003e\u003c/p\u003e | Tetrahedron  in contact |\n\n\n## Installation prerequisite\n\nIn principle, any Conda/Mamba distribution will work. A few Conda/Mamba options are:\n\n- [Miniforge](https://github.com/conda-forge/miniforge#miniforge-pypy3) (recommended as it includes mamba)\n- [Anaconda](https://www.anaconda.com/download)\n- [Miniconda](https://docs.conda.io/en/latest/miniconda.html)\n\n## Install using Mamba and pip\n\nThis example assumes you have installed the MiniForge option or separately\ninstalled Mamba with ```conda install -c conda-forge mamba -y```\n\nCreate a new conda environment, I've chosen Python 3.10 here but newer versions should also work.\n\n```bash\nmamba create --name new_env python=3.10 -y\n```\n\nActivate the environment\n\n```bash\nmamba activate new_env\n```\n\nInstall the dependencies, if this fails to solve the environment you could also try [installing OpenMC from source](https://docs.openmc.org/en/stable/quickinstall.html) which might be preferred.\n\n```bash\nmamba install -y -c conda-forge gmsh python-gmsh \"openmc=dagmc*nompi*\"\n```\n\nCadQuery should then be installed, here is the mamba command and the pip command.\n\n```bash\nmamba install -y -c conda-forge ocp cadquery\n```\n\nIf the mamba command fails to solve the environment then try this pip command.\n\n```bash\npython -m pip install cadquery-ocp cadquery\n```\n\nThen you can install whichever convertor you want to test. The cad_to_dagmc and the CAD_to_OpenMC packages can both be installed with ```pip``` or ```conda```. **Warning** these should be installed in separate environments as they require a different version of Open Cascade.\n\n```bash\npython -m pip install cad_to_dagmc\n```\n\nor\n\n```bash\npython -m pip install CAD_to_OpenMC\n```\n\nThen you can install the model benchmark zoo with ```pip```\n\n```bash\npython -m pip install git+git://github.com/fusion-energy/model_benchmark_zoo.git\n```\n\n## Usage\n\nExample scripts that make CSG and DAGMC geometry can be found in [the examples folder](https://github.com/fusion-energy/model_benchmark_zoo/tree/main/examples)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffusion-energy%2Fmodel_benchmark_zoo","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ffusion-energy%2Fmodel_benchmark_zoo","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffusion-energy%2Fmodel_benchmark_zoo/lists"}