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New license and docs
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Salvatore Filippone
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MLD2P4 version 2.2
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MultiLevel Domain Decomposition Parallel Preconditioners Package
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based on PSBLAS (Parallel Sparse BLAS version 3.5)
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(C) Copyright 2008-2018
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Salvatore Filippone
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Pasqua D'Ambra
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Daniela di Serafino
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions, and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the MLD2P4 group or the names of its contributors may
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not be used to endorse or promote products derived from this
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software without specific written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE MLD2P4 GROUP OR ITS CONTRIBUTORS
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BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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AMG4PSBLAS version 1.0
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Algebraic Multigrid Package
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based on PSBLAS (Parallel Sparse BLAS version 3.7)
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(C) Copyright 2020
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Salvatore Filippone
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Pasqua D'Ambra
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Fabio Durastante
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions, and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the AMG4PSBLAS group or the names of its contributors may
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not be used to endorse or promote products derived from this
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software without specific written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AMG4PSBLAS GROUP OR ITS CONTRIBUTORS
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BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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@@ -0,0 +1,37 @@
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MLD2P4 version 2.2
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MultiLevel Domain Decomposition Parallel Preconditioners Package
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based on PSBLAS (Parallel Sparse BLAS version 3.5)
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(C) Copyright 2008-2018
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Salvatore Filippone
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Pasqua D'Ambra
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Daniela di Serafino
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions, and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the MLD2P4 group or the names of its contributors may
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not be used to endorse or promote products derived from this
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software without specific written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE MLD2P4 GROUP OR ITS CONTRIBUTORS
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BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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@@ -1,41 +1,24 @@
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MLD2P4
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MultiLevel Domain Decomposition Parallel Preconditioners Package
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based on PSBLAS (Parallel Sparse BLAS version 3.5)
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AMG4PSBLAS
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Algebraic Multigrid Package based on PSBLAS (Parallel Sparse BLAS version 3.7)
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Salvatore Filippone (Cranfield University, UK)
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Salvatore Filippone (University of Rome Tor Vergata and IAC-CNR)
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Pasqua D'Ambra (IAC-CNR, Naples, IT)
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Daniela di Serafino (Univ. of Campania "L. Vanvitelli", Caserta, IT)
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Fabio Durastante (IAC-CNR, Naples, IT)
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---------------------------------------------------------------------
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MLD2P4 (MultiLevel Domain Decomposition Parallel Preconditioners
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Package based on PSBLAS) provides parallel Algebraic MultiGrid (AMG)
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and Domain Decomposition preconditioners, to be used in the
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iterative solution of linear systems.
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AMG4PSBLAS is a package of Algebraic MultiGrid (AMG)
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preconditioners for the iterative solution of large and sparse linear systems.
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The name of the package comes from its original implementation,
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containing multilevel additive and hybrid Schwarz preconditioners,
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as well as one-level additive Schwarz preconditioners. The current
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version extends the original plan by including multilevel cycles
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and smoothers widely used in multigrid methods. A purely algebraic
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approach is applied to generate coarse-level corrections, so that
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no geometric background is needed concerning the matrix to be
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preconditioned.
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MLD2P4 has been designed to provide scalable and easy-to-use
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preconditioners in the context of the PSBLAS (Parallel Sparse Basic
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Linear Algebra Subprograms) computational framework and is used
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in conjuction with the Krylov solvers available from PSBLAS. The
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package employs object-oriented design techniques in Fortran 2003,
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with interfaces to additional third party libraries such as MUMPS,
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UMFPACK, SuperLU, and SuperLU_Dist, which can be exploited in building
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multilevel preconditioners. The parallel implementation is based on
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a Single Program Multiple Data (SPMD) paradigm; the inter-process
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communication is based on MPI and is managed mainly through PSBLAS.
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It is an evolution of MLD2P4 (see LICENSE.MLD2P4), but it has been
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thoroughly reworked, and it is sufficiently different to warrant a new
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project name.
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MAIN REFERENCE:
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MAIN REFERENCES:
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P. D'Ambra, D. di Serafino, S. Filippone,
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MLD2P4: a Package of Parallel Algebraic Multilevel Domain Decomposition
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@@ -64,19 +47,9 @@ NOTES
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the corresponding preconditioner options will be available only from
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the double precision version.
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- The preconditioners in MLD2P4 extend those of PSBLAS and are meant
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to be used with the PSBLAS Krylov solvers; so in an existing program
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you need to modify the type of the preconditioner object and its
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settings, but the rest of the application needs not be changed.
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The MLD2P4 team.
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The AMG4PSBLAS team.
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---------------
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Project lead:
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Salvatore Filippone
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Contributors:
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Pasqua D'Ambra
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Daniela di Serafino
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Ambra Abdullahi Hassan
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Alfredo Buttari
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Fabio Durastante
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