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Basic CPP backbone for other plugins #521

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@skim0119 skim0119 commented Dec 24, 2025 •
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This branch introduces a C++ backend. This backend is designed to provide better C++ plugin features for handling block-memory.

Summary of Key Changes

  • New C++ backend

    • A new C++ backend has been added in the backend directory.
    • Includes:
      • CMake build system
      • Source code for block-memory Cosserat rods
      • Concurrent Collision detection and its optimization.

  • Pybind11 bindings

    • Pybind11 is used to create Python bindings for the C++ code.
    • Enables seamless integration with the existing Python codebase.

  • Python modules

    • Python modules have been added to interface with the C++ backend.

  • Unit tests

    • The C++ code
    • Python–C++ integration

  • GitHub Actions

    • Build the C++ backend
    • Run tests

skim0119 and others added 30 commits May 25, 2024 03:55
@skim0119 @tp5uiuc
add cmake and build structure
581672c 
Co-Authored-By: Tejaswin Parthasarathy <tp5@illinois.edu>
@armantekinalp
Merge pull request #389 from skim0119/elasticapp-integration
d2985be 
[GSOC] Feat: minimal cmake files to start integrating pybind11 with blaze
@skim0119
update: gitignore file to include c++ code
3a1f106
@skim0119
included cmakelists
558cabc
@ankith26
Switch to scikit_build_core, remove setup.py
7a1fe25 
- Moves the metadata from setup.py to pyproject.toml
@ankith26
Add basic pybind11 example with meson buildsystem
060f94f
@ankith26
Start integrating dependencies
a587b65 
- brigand and cxxopts resolved via meson wraps
- blaze, blaze_tensor and sleef are installed via a custom shell script
that's called from the meson build
@ankith26
elasticapp _batch_matmul ports with benchmarking
8c36584
@skim0119
add math utility libraries
3e05a9e
@skim0119
add blaze traits
b3221cd
@ankith26
Wrap and test everything in BlazeLinearAlgebra.hpp
ecedea5
@skim0119
python-binding template for vector/matrix/tensor
d612817
@skim0119
include SO3 backend implementation
fb7f32d
@ankith26
Fix Utilities/Math/Python issues and make it build
f66d050
@ankith26
Add elasticapp documentation
3737d5c
@ankith26
port linalg to use Utils/Math/Python objects
4e7a04b 
- Updated benchmarking and test scripts accordingly
@skim0119
Update README.md
f9d4d00
@ankith26
Add batchcross benchmarking
7d45e74
@ankith26
Setup optimization blaze defines globally
f1eaef8
@skim0119
revert: __str__ for blaze objects. Other print-related methods are ad…
a61a445 
…ded.
@skim0119
feat: Add bound check during blaze setter
2e34cdd
@skim0119
Add default simulator frames definition
99ff10f
@skim0119
binding: elastica tags
d03eb97
@skim0119
add elastica::tags and system-type structure
23cf020
@skim0119
files: CosseratRod system
9802213
@ankith26
Add backend CI
4bd8a3a
@skim0119
file: Add MakeString
47952a7
@skim0119
Merge branch 'ankith26-gsoc' of https://github.com/ankith26/PyElastica …
bcb7ad8 
…into ankith26-gsoc
@skim0119
remove pretty print for now
d005f62
@skim0119
files: add Rod-related traits and include trees
5b28ec7
@skim0119 skim0119 force-pushed the elasticapp-integration branch from 6e4f547 to 0b4d8ae Compare December 27, 2025 06:35
skim0119 and others added 23 commits December 27, 2025 00:58
@skim0119
simplify loop
2ce0f56
@skim0119
reduce variadic error message
68e8f61
@skim0119
remove old ignore lists
80d7c1b
@skim0119
add python-api of collision modules
9a20a74
@skim0119
add cpp binding
7dc6800
@skim0119
rebuild process include removing previous build
d0ddd5d
@skim0119
add main collision system class
2f232c6
@skim0119
add collision in build
fff92e6
@skim0119
add commonly use node-to-element mapping routine
198e465
@skim0119
use free-function math for elem-to-node conversion for radius
bd1e978
@skim0119
fix: compilation issue
6aa5438
@skim0119
add crtp concepts
897a34e
@skim0119
unittest for collision module
5dcb641
@skim0119
add linear spring dashpot implementation
5332b60
@skim0119
add no-interaction physics model for dummy or testing
34bbb0e
@skim0119
implement collision physics models: add NoInteraction and LinearSprin…
b182fa5 
…gDashpot classes to the collision system
@skim0119
fix namespaces: compilation issues
4caa607
@skim0119
add fine-detection routine
33ac388
@skim0119
add coarse grid detection
a1f93f3
@skim0119
add batching methods
b1546c9
@skim0119
uncomment api for collision module
9a0b27a
@skim0119
fix build: correct namespace from upstream redefinitions
71cdbd7
@skim0119
update unittest for batch cache
e21b5e4
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4 participants

@skim0119 @armantekinalp @ankith26