https://github.com/peterrum/dealii-asm
https://github.com/peterrum/dealii-asm
Last synced: about 1 month ago
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- Host: GitHub
- URL: https://github.com/peterrum/dealii-asm
- Owner: peterrum
- Created: 2022-07-15T15:32:42.000Z (almost 4 years ago)
- Default Branch: master
- Last Pushed: 2023-06-02T09:23:33.000Z (almost 3 years ago)
- Last Synced: 2026-01-01T12:22:43.349Z (5 months ago)
- Language: C++
- Size: 1.28 MB
- Stars: 2
- Watchers: 3
- Forks: 0
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
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README
# Cache-optimized and low-overhead implementations of multigrid smoothers for high-order FEM computations
This project contains benchmarks for smoothers in the context of multigrid.
## Getting started
Build deal.II with p4est and Trilinos enabled (please specify the paths to those libraries):
```
git clone https://github.com/dealii/dealii.git
mkdir dealii-build
cd dealii-build/
echo "cmake \
-D DEAL_II_WITH_64BIT_INDICES=\"OFF\" \
-D CMAKE_BUILD_TYPE=\"DebugRelease\" \
-D CMAKE_CXX_COMPILER=\"mpic++\" \
-D CMAKE_CXX_FLAGS=\"-march=native -Wno-array-bounds -std=c++17\" \
-D DEAL_II_CXX_FLAGS_RELEASE=\"-O3\" \
-D CMAKE_C_COMPILER=\"mpicc\" \
-D DEAL_II_WITH_MPI=\"ON\" \
-D DEAL_II_WITH_P4EST=\"ON\" \
-D MPIEXEC_PREFLAGS=\"-bind-to none\" \
-D DEAL_II_WITH_LAPACK=\"ON\" \
-D DEAL_II_WITH_HDF5=\"OFF\" \
-D DEAL_II_FORCE_BUNDLED_BOOST=\"OFF\" \
-D DEAL_II_COMPONENT_DOCUMENTATION=\"OFF\" \
-D P4EST_DIR=PATH_TO_P4EST \
-D DEAL_II_WITH_TRILINOS=\"ON\" \
-D TRILINOS_DIR=PATH_TO_TRILINOS \
-D DEAL_II_WITH_PETSC:BOOL=\"ON\" \
-D PETSC_DIR=PATH_TO_PETSC \
-D PETSC_ARCH=\"arch-linux2-c-opt\" \
../dealii" > config.sh
. config.sh
make -j30
cd ..
```
Build the benchmarks:
```
git clone https://github.com/peterrum/dealii-dd-and-schwarz.git
mkdir dealii-dd-and-schwarz-build
cd dealii-dd-and-schwarz-build
cmake ../dealii-multigrid -DDEAL_II_DIR=../dealii-build
make release
make -j10
cd ..
```
Run the experiments in the `experiments` folder.
Data collected during extensive parameter studies are given in the `data` folder.