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Compile

Docker Images

For Linux users, if there is no access to sudo but can build containers with Docker, it is possible to compile the project with Docker. Check the provided Dockerfiles for more information.

Once the container is built, the .tar.gz will be placed under /. Simply copy them out and install/unpack the archive. The .deb or .rpm packages are installed in the images, so they can be used directly.

The following is a general guide that covers three main operating systems.

Prerequisites

  1. To configure the source code, CMake shall be available. Please download and install it before configuring the source code package.
  2. The linear algebra driver used is OpenBLAS. You may want to compile it with the optimal configuration based on the specific machine. Otherwise, precompiled binaries (dynamic platform) are available in this repository.
  3. It is strongly recommended installing Intel MKL for potentially better performance.
  4. Please be aware that MKL is throttled on AMD platforms. Performance comparisons can be seen for example here. If you have AMD CPUs please collect more knowledge to determine which linear algebra library is more suitable.

Toolsets

A number of new features from new standards are utilized. To compile the binary, a compiler that supports C++20 is required.

GCC 11, Clang 13, MSVC 14.3, Intel compilers and later version of those compilers are tested with the source code.

On Windows, Visual Studio 2022 with Intel oneAPI toolkit is recommended. Alternatively, WinLibs can be used if GCC compilers are preferred.

On other platforms (Linux and macOS), simply use GCC (at least version 10) which comes with a valid Fortran compiler. Clang can also be used for C/CPP code, but since Clang and GCC have different supports for C++20, successful compilation is not guaranteed with Clang.

Obtain Source Code

Download the source code archive from GitHub Releases or the latest code.

Configure and Compile

The manual compilation is not difficult in general. The CI/CD configuration files can be referred to if you wish. Please check this page. Here some general guidelines are given.

Visual Studio

A solution file is provided under MSVC/suanPan folder. There are two configurations:

  1. Debug: Assume no available Fortran compiler, all Fortran related libraries are provided as precompiled DLLs. Use OpenBLAS for linear algebra. Multithreading disabled. Visualisation disabled. HDF5 support disabled.
  2. Release: Fortran libraries are configured with Intel compilers. Use MKL for linear algebra. Multithreading enabled. Visualisation enabled with VTK version 9.2. HDF5 support enabled. CUDA enabled.

This repository contains some precompiled libraries used.

If Intel oneAPI Toolkit and CUDA are not installed, only the Debug configuration can be successfully compiled. Simply open the solution and switch to Debug configuration, ignore all potential warnings and build the solution.

To compile Release version, please

  1. Make sure oneAPI both base and HPC toolkits, as well as VS integration, are installed. Be aware of this issue if you are using VS 2022: Microsoft Visual Studio 2022 Version 17.2 and Newer Fails to Integrate with the Intel Fortran Compiler. The MKL is enabled via integrated option <UseInteloneMKL>Parallel</UseInteloneMKL>.

  2. Make sure CUDA is installed. The environment variable $(CUDA_PATH) is used to locate headers.

  3. Make sure VTK is available. Then define a system environment variable $(VTK_DIR), which points to the root folder of VTK library. On my machine, it is

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VTK_DIR=C:\Program Files\VTK\

For versions other than 9.2, names of the linked libraries shall be manually changed as they contain version numbers. Thus, it is not a good idea to switch to a different version. Precompiled VTK library is also available in this repository.

  1. Make sure MAGMA is available. Then define a system environment variable $(MAGMA_DIR), which points to the root folder of MAGMA library. On my machine, it is
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MAGMA_DIR=C:\Program Files\MAGMA\

You probably need to compile MAGMA yourself. You can manually remove all magma related settings in the solution file if you don't want to use it.

Alternatively, CMake can be used to generate solution files if some external packages are not available.

Ubuntu

The following instructions are based on Ubuntu 20.04. CMake is used to manage builds. It is recommended to use CMake GUI if appropriate.

  1. Install necessary tools.
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sudo apt-get install gcc-10 g++-10 gfortran-10 git cmake libomp5 -y
  1. Clone the project.
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git clone -b master https://github.com/TLCFEM/suanPan.git
  1. Create build folder and configure via CMake. The default configuration disables parallelism -DBUILD_MULTITHREAD=OFF and enables HDF5 via bundled library -DUSE_HDF5=ON. Please check Option.cmake file or use GUI for available options.
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cd suanPan && mkdir build && cd build
cmake ../
  1. Invoke make.
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make -j4

Check the following recording.

asciicast

Install VTK

Ubuntu official repository does not (Fedora does!) contain the latest VTK library. It's better to compile it manually.

  1. Install OpenGL first, as well as compilers if necessary.
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sudo apt install gcc-10 g++-10 gfortran-10 libglu1-mesa-dev freeglut3-dev mesa-common-dev libglvnd-dev
  1. Obtain VTK source code and unpack.
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wget https://www.vtk.org/files/release/9.1/VTK-9.1.0.tar.gz
tar -xf VTK-9.1.0.tar.gz
  1. Create folder for building VTK.
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mkdir VTK-build && cd VTK-build
  1. Configure and compile VTK library. If necessary, installation destination can be modified. Here static libraries are built.
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cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX=../VTK-out ../VTK-9.1.0
make install -j4
  1. Now obtain suanPan source code and unpack it. To configure it with VTK support, users may use the following flag -DUSE_VTK=ON. If FindVTK is presented and VTK is installed to default location, there is no need to provide the variable VTK_DIR, otherwise point it to the lib/cmake/vtk-9.1 folder.

Install MKL

The provided CMake configuration covers both oneMKL and Intel MKL 2020. Please note MKL is included in oneAPI toolkit starting from 2021, which has a different folder structure compared to Intel Parallel Studio.

The following guide is a manual installation is based on Ubuntu terminal using the official repository. See this page for details.

  1. Add repository. To summarise,
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wget https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
sudo apt-key add GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
echo "deb https://apt.repos.intel.com/oneapi all main" | sudo tee /etc/apt/sources.list.d/oneAPI.list
  1. Install the package.
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sudo apt update && sudo apt install intel-oneapi-mkl-devel -y
  1. Now compile suanPan by enabling MKL via option -DUSE_MKL=ON. The corresponding MKLROOT shall be assigned, for example -DMKLROOT=/opt/intel/oneapi/mkl/latest/, depending on the installation location. The configuration used for snap is the following one.
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   -DCMAKE_INSTALL_PREFIX=
   -DCMAKE_BUILD_TYPE=Release
   -DBUILD_MULTITHREAD=ON
   -DUSE_HDF5=ON
   -DUSE_VTK=ON
   -DVTK_DIR=$CRAFT_PART_BUILD/lib/cmake/vtk-9.2/
   -DUSE_MKL=ON
   -DMKLROOT=/opt/intel/oneapi/mkl/latest
   -DUSE_INTEL_OPENMP=OFF
   -DLINK_DYNAMIC_MKL=OFF

Fedora

VTK

Fedora offers the latest VTK library, simply install it.

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sudo dnf install vtk-devel

MKL

Intel also provides a repository to install MKL via dnf. See this page for details.

First, create the repo file.

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tee > /tmp/oneAPI.repo << EOF
[oneAPI]
name=Intel® oneAPI repository
baseurl=https://yum.repos.intel.com/oneapi
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://yum.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
EOF

Move it to the proper location.

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sudo mv /tmp/oneAPI.repo /etc/yum.repos.d

Install MKL. You may perform a search sudo dnf search intel-oneapi-mkl-devel to find which package name is available and install the specific version if necessary.

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sudo dnf install intel-oneapi-mkl-devel

The source can be compiled with VTK and MKL enabled.

macOS

The following guide is based on macOS Big Sur (11).

Install tools. gfortran, llvm and libomp are used for compiling the main program, glfw and glew are required for compiling VTK. VTK does not compile with GCC. Here, we use Clang.

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# install brew if not installed
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
# install necessary packages
brew install gcc@10 llvm@13 libomp glfw glew git cmake

Similar to Ubuntu, compile VTK if wanted.

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wget https://www.vtk.org/files/release/9.1/VTK-9.1.0.tar.gz
tar xf VTK-9.1.0.tar.gz && rm VTK-9.1.0.tar.gz
mkdir VTK-build && cd VTK-build
cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX=../VTK-out ../VTK-9.1.0
make install -j4

MKL can be installed if necessary. See this page .

Obtain the source code and configure.

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# clone source code
git clone -b master https://github.com/TLCFEM/suanPan.git
# create build directory
mkdir suanpan-build && cd suanpan-build
# use clang, clang++ and gfortran
export CC=/usr/local/opt/llvm/bin/clang && export CXX=/usr/local/opt/llvm/bin/clang++ && export FC=gfortran-10
# configure project
cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_MULTITHREAD=ON -DUSE_HDF5=ON -DUSE_VTK=ON -DVTK_DIR=../VTK-out/lib/cmake/vtk-9.1/ .
# compile
make -j4

Build Options

If CMake GUI is used to configure the project, the following options are available.

  1. BUILD_DLL_EXAMPLE: If enabled, example element/material/section implemented as external libraries will be built.
  2. BUILD_MULTITHREAD: If enabled, TBB will be used for multithreading so that element update, global matrix assembly, etc., can be parallelized. OpenMP is not controlled by this option given that OpenMP support is available in major platforms. It will be used for low level parallelization such as linear algebra operations (which is controlled by Armadillo), matrix solving (which is controlled by various solvers).
  3. BUILD_SHARED: If enabled, all libraries will be built as shared libraries.
  4. USE_SUPERLUMT: If enabled, SuperLU-MT will be used, otherwise SuperLU will be used.
  5. USE_HDF5: If enabled, HDF5 will be used to provide support for hdf5recorder.
  6. USE_VTK: If enabled, VTK will be used to provide support for visualization. It will be useful to generate .vtk files that can be used in Paraview for post-processing. If enabled, VTK_DIR needs to be set to the path of VTK installation. For example, VTK_DIR=/usr/local/opt/vtk/lib/cmake/vtk-9.1.
  7. USE_CUDA: CUDA needs to be installed manually by the user. If enabled, CUDA based solvers will be available. However, for dense matrix storage, only full matrix storage scheme is supported by CUDA. Note full matrix storage scheme is not favorable for FEM. It can, however, be used for sparse matrix solving and mixed precision solving.
  8. USE_AVX: If enabled, compiler flags -mavx or /arch:AVX will be used. (~2011)
  9. USE_AVX2: If enabled, compiler flags -mavx2 or /arch:AVX2 will be used. (~2013)
  10. USE_AVX512: If enabled, compiler flags -mavx512f or /arch:AVX512 will be used. (~2016)
  11. USE_MKL: MKL needs to be installed manually by the user. If enabled, the parallel version of MKL will be used for linear algebra operations. It is possible to manually modify the configuration to use cluster version (MPI). However, For the moment, the global matrix is still centralized in such a way that element updating will happen on a single node. The linear algebra operations may be offloaded to other nodes. If USE_MKL is enabled, the following additional options are available.
  12. LINK_DYNAMIC_MKL: If enabled, dynamically linked MKL libraries will be used. Otherwise, statically linked MKL libraries will be used, leading to larger binary size but faster execution and fewer dependencies.
  13. MKLROOT: Set this path to the root directory of MKL installation. For example, C:/Program Files (x86)/Intel/oneAPI/mkl/latest or /opt/intel/oneapi/mkl/latest.
  14. USE_INTEL_OPENMP: If enabled, Intel OpenMP library will be used. Otherwise, Default ones (such as GNU OpenMP library) will be used.

Example Configuration

The following command is used to compile the program to be distributed via snap. See this file.

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# assume current folder is suanPan/build
# the parent folder contains source code
cmake -DCMAKE_INSTALL_PREFIX= \
      -DCMAKE_BUILD_TYPE=Release \
      -DBUILD_MULTITHREAD=ON \
      -DUSE_HDF5=ON \
      -DUSE_VTK=ON \
      -DVTK_DIR=$CRAFT_PART_BUILD/lib/cmake/vtk-9.2/ \
      -DUSE_MKL=ON \
      -DMKLROOT=/opt/intel/oneapi/mkl/latest \
      -DUSE_INTEL_OPENMP=OFF \
      -DLINK_DYNAMIC_MKL=OFF