John W. Peterson jwpeterson
jwpeterson
/ jeffery_hamel.cc
Created
December 19, 2016 17:29
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| // An FEM formulation for solving the Jeffery-Hamel ODE: | |
| // f''' + 2 * alpha * Re * f * f' + 4 * alpha^2 * f' = 0 | |
| // using C1 Hermite cubic and quartic finite elements. | |
| // Libmesh includes | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/elem.h" | |
| #include "libmesh/mesh_generation.h" | |
| #include "libmesh/equation_systems.h" | |
| #include "libmesh/linear_implicit_system.h" |
jwpeterson
/ noncopyable.C
Last active
November 2, 2024 05:52
Demonstrate usage of noncopyable class in std containers
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| // Compilation requires -std=c++17 | |
| // http://stackoverflow.com/questions/17603666/copy-move-requirements-for-the-key-value-types-in-a-stdmap | |
| #include <map> | |
| #include <vector> | |
| struct foo | |
| { | |
| int i; | |
| foo(int j) : i(j) {} |
jwpeterson
/ DG_EXO_test.cpp
Created
February 10, 2017 22:10
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| // C++ include files that we need | |
| #include <iostream> | |
| // Basic include files needed for the mesh functionality. | |
| #include "libmesh/libmesh.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/mesh_generation.h" | |
| #include "libmesh/linear_implicit_system.h" | |
| #include "libmesh/equation_systems.h" | |
| #include "libmesh/exodusII_io.h" |
jwpeterson
/ default_destructor.C
Created
June 6, 2018 20:04
Defaulted destructors inhibit move constructor generation
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| #include <iostream> | |
| #include <vector> | |
| struct S | |
| { | |
| S(const S&) { std::cout << "Copied an S\n"; } | |
| S(S&&) { std::cout << "Moved an S\n"; } | |
| S() = default; |
jwpeterson
/ bassi_rebay_mesh.cc
Created
September 26, 2018 21:46
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| #include "libmesh/node.h" | |
| #include "libmesh/elem.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/face_tri3.h" | |
| #include "libmesh/getpot.h" | |
| using namespace libMesh; | |
| // Commands to approximately generate the Bassi & Rebay meshes: | |
| // In my opinion, the meshes look best when nodes_per_ring = 2 * num_rings |
jwpeterson
/ key_performance_test.cc
Last active
October 3, 2018 22:51
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| #include "libmesh/mesh_generation.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/elem.h" | |
| #include "libmesh/getpot.h" | |
| #include "libmesh/string_to_enum.h" | |
| #include "libmesh/elem_range.h" | |
| // C++ includes | |
| #include <chrono> |
jwpeterson
/ make_kernel.py
Created
November 6, 2018 10:42
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| #!/usr/bin/env python | |
| import sys | |
| import os | |
| name = '' | |
| # Process command line args (0 is always the script name) | |
| c = 1 | |
| while (c < len(sys.argv)): |
jwpeterson
/ type_tensor_ABC_performance.cc
Created
December 19, 2020 05:59
Comparison of matrix-matrix-matrix product for RealTensorValue, DenseMatrix, and Eigen::Matrix3d
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| // Basic include file needed for the mesh functionality. | |
| #include "libmesh/libmesh.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/dof_map.h" | |
| #include "libmesh/elem.h" | |
| #include "libmesh/fe_interface.h" | |
| #include "libmesh/fe_map.h" | |
| #include "libmesh/fe_base.h" | |
| #include "libmesh/quadrature_gauss.h" | |
| #include "libmesh/enum_to_string.h" |
jwpeterson
/ type_tensor_axpy_performance.cc
Created
December 19, 2020 06:00
Comparison of A*x + y for RealTensorValue, DenseMatrix, and Eigen::Matrix3d
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| // Basic include file needed for the mesh functionality. | |
| #include "libmesh/libmesh.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/dof_map.h" | |
| #include "libmesh/elem.h" | |
| #include "libmesh/fe_interface.h" | |
| #include "libmesh/fe_map.h" | |
| #include "libmesh/fe_base.h" | |
| #include "libmesh/quadrature_gauss.h" | |
| #include "libmesh/enum_to_string.h" |
jwpeterson
/ tet_test_2831.cc
Created
January 11, 2021 16:36
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| // libmesh includes | |
| #include "libmesh/libmesh.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/elem.h" | |
| #include "libmesh/fe.h" | |
| #include "libmesh/quadrature_gauss.h" | |
| #include "libmesh/dense_vector.h" | |
| #include "libmesh/dense_matrix.h" | |
| using namespace libMesh; |