MLD2P4
User’s and Reference Guide
A guide for the MultiLevel Domain Decomposition Parallel Preconditioners Package based on PSBLAS
Pasqua D’Ambra
IAC-CNR, Naples, Italy
Daniela di Serafino
University of Campania “Luigi Vanvitelli”, Caserta, Italy
Salvatore Filippone
Cranfield University, Cranfield, United Kingdom
Software version: 2.2
July 31, 2018  

Abstract
Abstract
Contents
1 General Overview
2 Code Distribution
 Contributors
3 Configuring and Building MLD2P4
 3.1 Prerequisites
 3.2 Optional third party libraries
 3.3 Configuration options
 3.4 Bug reporting
 3.5 Example and test programs
4 Multigrid Background
 4.1 AMG preconditioners
 4.2 Smoothed Aggregation
 4.3 Smoothers and coarsest-level solvers
5 Getting Started
 5.1 Examples
6 User Interface
 6.1 Method init
 6.2 Method set
 6.3 Method hierarchy_build
 6.4 Method smoothers_build
 6.5 Method build
 6.6 Method apply
 6.7 Method free
 6.8 Method descr
 6.9 Auxiliary Methods
7 Adding new smoother and solver objects to MLD2P4
8 Error Handling
A License
References
References