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            pdfauthor={Pasqua D'Ambra, Fabio Durastante, Salvatore Filippone},
            pdftitle={Algebraic MultiGrid Preconditioners Package based on PSBLAS, V. 1.0},
            pdfsubject={MultiGrid Parallel Preconditioners Package},
            pdfkeywords={Parallel Numerical Software, Algebraic MultiGrid Preconditioners, Sparse Iterative Solvers, PSBLAS, MPI},
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\pdfinfo{                       %-- Info dictionary of PDF output  /Author (PD, DdS, SF)
  /Title    (Algebraic MultiGrid Preconditioners Package
             based on PSBLAS, V. 1.0)
  /Subject  (MultiGrid Parallel Preconditioners Package)
  /Keywords (Parallel Numerical Software, Algebraic MultiGrid Preconditioners, Sparse Iterative Solvers, PSBLAS, MPI)
  /Creator  (pdfLaTeX)
  /Producer ($Id: userguide.tex 2021-04-12 Pasqua D'Ambra, Fabio Durastante,
             Salvatore Filippone$)
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{
\pdfbookmark{AMG4PSBLAS User's and Reference Guide}{title}
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\noindent\hspace*{\centeroffset}\makebox[0pt][l]{\begin{minipage}{\textwidth}
\flushright
{\Huge\bfseries AMG4PSBLAS\\[.8ex] User's and Reference Guide
}
\noindent\rule[-1ex]{\textwidth}{5pt}\\[2.5ex]
\hfill\emph{\Large A guide for the Algebraic MultiGrid \\[.6ex]
Preconditioners Package based on PSBLAS}
\end{minipage}}

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\begin{figure*}[htb]
\begin{center}
\includegraphics[width=0.6\textwidth]{amg4psblaslibrary.png}
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\end{figure*}

\vspace{\stretch{1}}
\noindent\hspace*{\centeroffset}\makebox[0pt][l]{\begin{minipage}{\textwidth}
\flushright
{\large\bfseries Pasqua D'Ambra}\\
\large IAC-CNR, Italy\\[3ex]
{\large\bfseries Fabio Durastante}\\
\large University of Pisa and IAC-CNR\\[3ex]
{\large\bfseries Salvatore Filippone} \\
\large University of Rome Tor-Vergata and IAC-CNR
%\\[10ex]
%\today
\end{minipage}}

\vspace{\stretch{1}}
\noindent\hspace*{\centeroffset}\makebox[0pt][l]{\begin{minipage}{\textwidth}
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\large Software version: 1.0\\
%\todaym
\large May 11th, 2021
\end{minipage}}
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\appendix
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\end{document}
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