\begin{arguments}
  \argdesc{n    }{Number of local columns.}
  \argdesc{ia   }{Starting index of each column in \texttt{ja} and \texttt{a}.}
  \argdesc{ja   }{Row of each element.}
  \argdesc{a    }{Value of each element.}
  \argdesc{newn }{New number of local columns.}
  \argdesc{newia}{Starting index of each columns in \texttt{newja} and \texttt{newa}.}
  \argdesc{newja}{Row of each element.}
  \argdesc{newa }{Values of each element.}   
  \argdesc{l2g  }{Global number of each local column.}
  \argdesc{comm }{MPI communicator.}
\end{arguments}
