Moving lapack to right place

1 files changed, 0 insertions, 253 deletions

diff --git a/src/lib/lapack/iparmq.f b/src/lib/lapack/iparmq.f
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--- a/src/lib/lapack/iparmq.f
+++ /dev/null
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-      INTEGER FUNCTION IPARMQ( ISPEC, NAME, OPTS, N, ILO, IHI, LWORK )
-*
-*  -- LAPACK auxiliary routine (version 3.1) --
-*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
-*     November 2006
-*     
-*     .. Scalar Arguments ..
-      INTEGER            IHI, ILO, ISPEC, LWORK, N
-      CHARACTER          NAME*( * ), OPTS*( * )
-*
-*  Purpose
-*  =======
-*
-*       This program sets problem and machine dependent parameters
-*       useful for xHSEQR and its subroutines. It is called whenever 
-*       ILAENV is called with 12 <= ISPEC <= 16
-*
-*  Arguments
-*  =========
-*
-*       ISPEC  (input) integer scalar
-*              ISPEC specifies which tunable parameter IPARMQ should
-*              return.
-*
-*              ISPEC=12: (INMIN)  Matrices of order nmin or less
-*                        are sent directly to xLAHQR, the implicit
-*                        double shift QR algorithm.  NMIN must be
-*                        at least 11.
-*
-*              ISPEC=13: (INWIN)  Size of the deflation window.
-*                        This is best set greater than or equal to
-*                        the number of simultaneous shifts NS.
-*                        Larger matrices benefit from larger deflation
-*                        windows.
-*
-*              ISPEC=14: (INIBL) Determines when to stop nibbling and
-*                        invest in an (expensive) multi-shift QR sweep.
-*                        If the aggressive early deflation subroutine
-*                        finds LD converged eigenvalues from an order
-*                        NW deflation window and LD.GT.(NW*NIBBLE)/100,
-*                        then the next QR sweep is skipped and early
-*                        deflation is applied immediately to the
-*                        remaining active diagonal block.  Setting
-*                        IPARMQ(ISPEC=14) = 0 causes TTQRE to skip a
-*                        multi-shift QR sweep whenever early deflation
-*                        finds a converged eigenvalue.  Setting
-*                        IPARMQ(ISPEC=14) greater than or equal to 100
-*                        prevents TTQRE from skipping a multi-shift
-*                        QR sweep.
-*
-*              ISPEC=15: (NSHFTS) The number of simultaneous shifts in
-*                        a multi-shift QR iteration.
-*
-*              ISPEC=16: (IACC22) IPARMQ is set to 0, 1 or 2 with the
-*                        following meanings.
-*                        0:  During the multi-shift QR sweep,
-*                            xLAQR5 does not accumulate reflections and
-*                            does not use matrix-matrix multiply to
-*                            update the far-from-diagonal matrix
-*                            entries.
-*                        1:  During the multi-shift QR sweep,
-*                            xLAQR5 and/or xLAQRaccumulates reflections and uses
-*                            matrix-matrix multiply to update the
-*                            far-from-diagonal matrix entries.
-*                        2:  During the multi-shift QR sweep.
-*                            xLAQR5 accumulates reflections and takes
-*                            advantage of 2-by-2 block structure during
-*                            matrix-matrix multiplies.
-*                        (If xTRMM is slower than xGEMM, then
-*                        IPARMQ(ISPEC=16)=1 may be more efficient than
-*                        IPARMQ(ISPEC=16)=2 despite the greater level of
-*                        arithmetic work implied by the latter choice.)
-*
-*       NAME    (input) character string
-*               Name of the calling subroutine
-*
-*       OPTS    (input) character string
-*               This is a concatenation of the string arguments to
-*               TTQRE.
-*
-*       N       (input) integer scalar
-*               N is the order of the Hessenberg matrix H.
-*
-*       ILO     (input) INTEGER
-*       IHI     (input) INTEGER
-*               It is assumed that H is already upper triangular
-*               in rows and columns 1:ILO-1 and IHI+1:N.
-*
-*       LWORK   (input) integer scalar
-*               The amount of workspace available.
-*
-*  Further Details
-*  ===============
-*
-*       Little is known about how best to choose these parameters.
-*       It is possible to use different values of the parameters
-*       for each of CHSEQR, DHSEQR, SHSEQR and ZHSEQR.
-*
-*       It is probably best to choose different parameters for
-*       different matrices and different parameters at different
-*       times during the iteration, but this has not been
-*       implemented --- yet.
-*
-*
-*       The best choices of most of the parameters depend
-*       in an ill-understood way on the relative execution
-*       rate of xLAQR3 and xLAQR5 and on the nature of each
-*       particular eigenvalue problem.  Experiment may be the
-*       only practical way to determine which choices are most
-*       effective.
-*
-*       Following is a list of default values supplied by IPARMQ.
-*       These defaults may be adjusted in order to attain better
-*       performance in any particular computational environment.
-*
-*       IPARMQ(ISPEC=12) The xLAHQR vs xLAQR0 crossover point.
-*                        Default: 75. (Must be at least 11.)
-*
-*       IPARMQ(ISPEC=13) Recommended deflation window size.
-*                        This depends on ILO, IHI and NS, the
-*                        number of simultaneous shifts returned
-*                        by IPARMQ(ISPEC=15).  The default for
-*                        (IHI-ILO+1).LE.500 is NS.  The default
-*                        for (IHI-ILO+1).GT.500 is 3*NS/2.
-*
-*       IPARMQ(ISPEC=14) Nibble crossover point.  Default: 14.
-*
-*       IPARMQ(ISPEC=15) Number of simultaneous shifts, NS.
-*                        a multi-shift QR iteration.
-*
-*                        If IHI-ILO+1 is ...
-*
-*                        greater than      ...but less    ... the
-*                        or equal to ...      than        default is
-*
-*                                0               30       NS =   2+
-*                               30               60       NS =   4+
-*                               60              150       NS =  10
-*                              150              590       NS =  **
-*                              590             3000       NS =  64
-*                             3000             6000       NS = 128
-*                             6000             infinity   NS = 256
-*
-*                    (+)  By default matrices of this order are
-*                         passed to the implicit double shift routine
-*                         xLAHQR.  See IPARMQ(ISPEC=12) above.   These
-*                         values of NS are used only in case of a rare
-*                         xLAHQR failure.
-*
-*                    (**) The asterisks (**) indicate an ad-hoc
-*                         function increasing from 10 to 64.
-*
-*       IPARMQ(ISPEC=16) Select structured matrix multiply.
-*                        (See ISPEC=16 above for details.)
-*                        Default: 3.
-*
-*     ================================================================
-*     .. Parameters ..
-      INTEGER            INMIN, INWIN, INIBL, ISHFTS, IACC22
-      PARAMETER          ( INMIN = 12, INWIN = 13, INIBL = 14,
-     $                   ISHFTS = 15, IACC22 = 16 )
-      INTEGER            NMIN, K22MIN, KACMIN, NIBBLE, KNWSWP
-      PARAMETER          ( NMIN = 75, K22MIN = 14, KACMIN = 14,
-     $                   NIBBLE = 14, KNWSWP = 500 )
-      REAL               TWO
-      PARAMETER          ( TWO = 2.0 )
-*     ..
-*     .. Local Scalars ..
-      INTEGER            NH, NS
-*     ..
-*     .. Intrinsic Functions ..
-      INTRINSIC          LOG, MAX, MOD, NINT, REAL
-*     ..
-*     .. Executable Statements ..
-      IF( ( ISPEC.EQ.ISHFTS ) .OR. ( ISPEC.EQ.INWIN ) .OR.
-     $    ( ISPEC.EQ.IACC22 ) ) THEN
-*
-*        ==== Set the number simultaneous shifts ====
-*
-         NH = IHI - ILO + 1
-         NS = 2
-         IF( NH.GE.30 )
-     $      NS = 4
-         IF( NH.GE.60 )
-     $      NS = 10
-         IF( NH.GE.150 )
-     $      NS = MAX( 10, NH / NINT( LOG( REAL( NH ) ) / LOG( TWO ) ) )
-         IF( NH.GE.590 )
-     $      NS = 64
-         IF( NH.GE.3000 )
-     $      NS = 128
-         IF( NH.GE.6000 )
-     $      NS = 256
-         NS = MAX( 2, NS-MOD( NS, 2 ) )
-      END IF
-*
-      IF( ISPEC.EQ.INMIN ) THEN
-*
-*
-*        ===== Matrices of order smaller than NMIN get sent
-*        .     to xLAHQR, the classic double shift algorithm.
-*        .     This must be at least 11. ====
-*
-         IPARMQ = NMIN
-*
-      ELSE IF( ISPEC.EQ.INIBL ) THEN
-*
-*        ==== INIBL: skip a multi-shift qr iteration and
-*        .    whenever aggressive early deflation finds
-*        .    at least (NIBBLE*(window size)/100) deflations. ====
-*
-         IPARMQ = NIBBLE
-*
-      ELSE IF( ISPEC.EQ.ISHFTS ) THEN
-*
-*        ==== NSHFTS: The number of simultaneous shifts =====
-*
-         IPARMQ = NS
-*
-      ELSE IF( ISPEC.EQ.INWIN ) THEN
-*
-*        ==== NW: deflation window size.  ====
-*
-         IF( NH.LE.KNWSWP ) THEN
-            IPARMQ = NS
-         ELSE
-            IPARMQ = 3*NS / 2
-         END IF
-*
-      ELSE IF( ISPEC.EQ.IACC22 ) THEN
-*
-*        ==== IACC22: Whether to accumulate reflections
-*        .     before updating the far-from-diagonal elements
-*        .     and whether to use 2-by-2 block structure while
-*        .     doing it.  A small amount of work could be saved
-*        .     by making this choice dependent also upon the
-*        .     NH=IHI-ILO+1.
-*
-         IPARMQ = 0
-         IF( NS.GE.KACMIN )
-     $      IPARMQ = 1
-         IF( NS.GE.K22MIN )
-     $      IPARMQ = 2
-*
-      ELSE
-*        ===== invalid value of ispec =====
-         IPARMQ = -1
-*
-      END IF
-*
-*     ==== End of IPARMQ ====
-*
-      END