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AMDSolver Plugin

AMDSolver Plugin is a UG4 plugin that provides a simple and rudimentary interface to use the rocALUTION solver library together with UG4.

The plugin bundles a variety of algebraic solvers, including both direct and iterative approaches:

Included solver types

Direct solvers

  • LU decomposition
  • Matrix inversion
  • QR factorization

Iterative solvers for sparse systems

  • BiCGStab
  • Conjugate gradients
  • Algebraic multigrid (AMG)

These solvers enable efficient assembled systems within UG4 workflows.

For detailed information about solver algorithms, configuration options, and backend capabilities, please refer to the official rocALUTION documentation.

Project status

Experimental draft

This plugin currently provides a first draft interface.
APIs, naming, configuration mechanisms, and usage patterns are expected to evolve and may change significantly.

Limitation: The rocalution library requires a initialization and finish (compared to MPI). since there is no workflow to finish the usage of a plugin the

Installation

Please install or clone this repository directly into the plugin folder of a ug4 installation since it is not yet included into the package manager. Before building just enable this with -DAMDSolver=ON

To install the libraries needed use:

on Fedora

sudo dnf install rocalution rocalution-devel

if needed also

sudo dnf install rocm-hip hipblas hiprand rocsparse rocblas hipcub rocprim
sudo dnf install cmake gcc-c++ git openmp-devel

on Ubuntu refer to the official installation guide https://rocm.docs.amd.com/projects/install-on-linux/en/latest/install/quick-start.html