don't index Eigen

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diff --git a/eigen/Eigen/src/SparseLU/SparseLU_Structs.h b/eigen/Eigen/src/SparseLU/SparseLU_Structs.h
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--- a/eigen/Eigen/src/SparseLU/SparseLU_Structs.h
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@@ -1,110 +0,0 @@
-// This file is part of Eigen, a lightweight C++ template library
-// for linear algebra.
-//
-// Copyright (C) 2012 Désiré Nuentsa-Wakam <desire.nuentsa_wakam@inria.fr>
-//
-// This Source Code Form is subject to the terms of the Mozilla
-// Public License v. 2.0. If a copy of the MPL was not distributed
-// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-/* 
- * NOTE: This file comes from a partly modified version of files slu_[s,d,c,z]defs.h
- * -- SuperLU routine (version 4.1) --
- * Univ. of California Berkeley, Xerox Palo Alto Research Center,
- * and Lawrence Berkeley National Lab.
- * November, 2010
- * 
- * Global data structures used in LU factorization -
- * 
- *   nsuper: #supernodes = nsuper + 1, numbered [0, nsuper].
- *   (xsup,supno): supno[i] is the supernode no to which i belongs;
- *  xsup(s) points to the beginning of the s-th supernode.
- *  e.g.   supno 0 1 2 2 3 3 3 4 4 4 4 4   (n=12)
- *          xsup 0 1 2 4 7 12
- *  Note: dfs will be performed on supernode rep. relative to the new 
- *        row pivoting ordering
- *
- *   (xlsub,lsub): lsub[*] contains the compressed subscript of
- *  rectangular supernodes; xlsub[j] points to the starting
- *  location of the j-th column in lsub[*]. Note that xlsub 
- *  is indexed by column.
- *  Storage: original row subscripts
- *
- *      During the course of sparse LU factorization, we also use
- *  (xlsub,lsub) for the purpose of symmetric pruning. For each
- *  supernode {s,s+1,...,t=s+r} with first column s and last
- *  column t, the subscript set
- *    lsub[j], j=xlsub[s], .., xlsub[s+1]-1
- *  is the structure of column s (i.e. structure of this supernode).
- *  It is used for the storage of numerical values.
- *  Furthermore,
- *    lsub[j], j=xlsub[t], .., xlsub[t+1]-1
- *  is the structure of the last column t of this supernode.
- *  It is for the purpose of symmetric pruning. Therefore, the
- *  structural subscripts can be rearranged without making physical
- *  interchanges among the numerical values.
- *
- *  However, if the supernode has only one column, then we
- *  only keep one set of subscripts. For any subscript interchange
- *  performed, similar interchange must be done on the numerical
- *  values.
- *
- *  The last column structures (for pruning) will be removed
- *  after the numercial LU factorization phase.
- *
- *   (xlusup,lusup): lusup[*] contains the numerical values of the
- *  rectangular supernodes; xlusup[j] points to the starting
- *  location of the j-th column in storage vector lusup[*]
- *  Note: xlusup is indexed by column.
- *  Each rectangular supernode is stored by column-major
- *  scheme, consistent with Fortran 2-dim array storage.
- *
- *   (xusub,ucol,usub): ucol[*] stores the numerical values of
- *  U-columns outside the rectangular supernodes. The row
- *  subscript of nonzero ucol[k] is stored in usub[k].
- *  xusub[i] points to the starting location of column i in ucol.
- *  Storage: new row subscripts; that is subscripts of PA.
- */
-
-#ifndef EIGEN_LU_STRUCTS
-#define EIGEN_LU_STRUCTS
-namespace Eigen {
-namespace internal {
-  
-typedef enum {LUSUP, UCOL, LSUB, USUB, LLVL, ULVL} MemType; 
-
-template <typename IndexVector, typename ScalarVector>
-struct LU_GlobalLU_t {
-  typedef typename IndexVector::Scalar StorageIndex; 
-  IndexVector xsup; //First supernode column ... xsup(s) points to the beginning of the s-th supernode
-  IndexVector supno; // Supernode number corresponding to this column (column to supernode mapping)
-  ScalarVector  lusup; // nonzero values of L ordered by columns 
-  IndexVector lsub; // Compressed row indices of L rectangular supernodes. 
-  IndexVector xlusup; // pointers to the beginning of each column in lusup
-  IndexVector xlsub; // pointers to the beginning of each column in lsub
-  Index   nzlmax; // Current max size of lsub
-  Index   nzlumax; // Current max size of lusup
-  ScalarVector  ucol; // nonzero values of U ordered by columns 
-  IndexVector usub; // row indices of U columns in ucol
-  IndexVector xusub; // Pointers to the beginning of each column of U in ucol 
-  Index   nzumax; // Current max size of ucol
-  Index   n; // Number of columns in the matrix  
-  Index   num_expansions; 
-};
-
-// Values to set for performance
-struct perfvalues {
-  Index panel_size; // a panel consists of at most <panel_size> consecutive columns
-  Index relax; // To control degree of relaxing supernodes. If the number of nodes (columns) 
-                // in a subtree of the elimination tree is less than relax, this subtree is considered 
-                // as one supernode regardless of the row structures of those columns
-  Index maxsuper; // The maximum size for a supernode in complete LU
-  Index rowblk; // The minimum row dimension for 2-D blocking to be used;
-  Index colblk; // The minimum column dimension for 2-D blocking to be used;
-  Index fillfactor; // The estimated fills factors for L and U, compared with A
-}; 
-
-} // end namespace internal
-
-} // end namespace Eigen
-#endif // EIGEN_LU_STRUCTS