[] add metering mode to CLI

1 files changed, 376 insertions, 0 deletions

diff --git a/contrib/libs/clapack/ztgex2.c b/contrib/libs/clapack/ztgex2.c
new file mode 100644
index 0000000000..d85191c51d
--- /dev/null
+++ b/contrib/libs/clapack/ztgex2.c
@@ -0,0 +1,376 @@
+/* ztgex2.f -- translated by f2c (version 20061008).
+   You must link the resulting object file with libf2c:
+	on Microsoft Windows system, link with libf2c.lib;
+	on Linux or Unix systems, link with .../path/to/libf2c.a -lm
+	or, if you install libf2c.a in a standard place, with -lf2c -lm
+	-- in that order, at the end of the command line, as in
+		cc *.o -lf2c -lm
+	Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
+
+		http://www.netlib.org/f2c/libf2c.zip
+*/
+
+#include "f2c.h"
+#include "blaswrap.h"
+
+/* Table of constant values */
+
+static integer c__2 = 2;
+static integer c__1 = 1;
+
+/* Subroutine */ int ztgex2_(logical *wantq, logical *wantz, integer *n, 
+	doublecomplex *a, integer *lda, doublecomplex *b, integer *ldb, 
+	doublecomplex *q, integer *ldq, doublecomplex *z__, integer *ldz, 
+	integer *j1, integer *info)
+{
+    /* System generated locals */
+    integer a_dim1, a_offset, b_dim1, b_offset, q_dim1, q_offset, z_dim1, 
+	    z_offset, i__1, i__2, i__3;
+    doublereal d__1;
+    doublecomplex z__1, z__2, z__3;
+
+    /* Builtin functions */
+    double sqrt(doublereal), z_abs(doublecomplex *);
+    void d_cnjg(doublecomplex *, doublecomplex *);
+
+    /* Local variables */
+    doublecomplex f, g;
+    integer i__, m;
+    doublecomplex s[4]	/* was [2][2] */, t[4]	/* was [2][2] */;
+    doublereal cq, sa, sb, cz;
+    doublecomplex sq;
+    doublereal ss, ws;
+    doublecomplex sz;
+    doublereal eps, sum;
+    logical weak;
+    doublecomplex cdum, work[8];
+    extern /* Subroutine */ int zrot_(integer *, doublecomplex *, integer *, 
+	    doublecomplex *, integer *, doublereal *, doublecomplex *);
+    doublereal scale;
+    extern doublereal dlamch_(char *);
+    logical dtrong;
+    doublereal thresh;
+    extern /* Subroutine */ int zlacpy_(char *, integer *, integer *, 
+	    doublecomplex *, integer *, doublecomplex *, integer *), 
+	    zlartg_(doublecomplex *, doublecomplex *, doublereal *, 
+	    doublecomplex *, doublecomplex *);
+    doublereal smlnum;
+    extern /* Subroutine */ int zlassq_(integer *, doublecomplex *, integer *, 
+	     doublereal *, doublereal *);
+
+
+/*  -- LAPACK auxiliary routine (version 3.2) -- */
+/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
+/*     November 2006 */
+
+/*     .. Scalar Arguments .. */
+/*     .. */
+/*     .. Array Arguments .. */
+/*     .. */
+
+/*  Purpose */
+/*  ======= */
+
+/*  ZTGEX2 swaps adjacent diagonal 1 by 1 blocks (A11,B11) and (A22,B22) */
+/*  in an upper triangular matrix pair (A, B) by an unitary equivalence */
+/*  transformation. */
+
+/*  (A, B) must be in generalized Schur canonical form, that is, A and */
+/*  B are both upper triangular. */
+
+/*  Optionally, the matrices Q and Z of generalized Schur vectors are */
+/*  updated. */
+
+/*         Q(in) * A(in) * Z(in)' = Q(out) * A(out) * Z(out)' */
+/*         Q(in) * B(in) * Z(in)' = Q(out) * B(out) * Z(out)' */
+
+
+/*  Arguments */
+/*  ========= */
+
+/*  WANTQ   (input) LOGICAL */
+/*          .TRUE. : update the left transformation matrix Q; */
+/*          .FALSE.: do not update Q. */
+
+/*  WANTZ   (input) LOGICAL */
+/*          .TRUE. : update the right transformation matrix Z; */
+/*          .FALSE.: do not update Z. */
+
+/*  N       (input) INTEGER */
+/*          The order of the matrices A and B. N >= 0. */
+
+/*  A       (input/output) COMPLEX*16 arrays, dimensions (LDA,N) */
+/*          On entry, the matrix A in the pair (A, B). */
+/*          On exit, the updated matrix A. */
+
+/*  LDA     (input)  INTEGER */
+/*          The leading dimension of the array A. LDA >= max(1,N). */
+
+/*  B       (input/output) COMPLEX*16 arrays, dimensions (LDB,N) */
+/*          On entry, the matrix B in the pair (A, B). */
+/*          On exit, the updated matrix B. */
+
+/*  LDB     (input)  INTEGER */
+/*          The leading dimension of the array B. LDB >= max(1,N). */
+
+/*  Q       (input/output) COMPLEX*16 array, dimension (LDZ,N) */
+/*          If WANTQ = .TRUE, on entry, the unitary matrix Q. On exit, */
+/*          the updated matrix Q. */
+/*          Not referenced if WANTQ = .FALSE.. */
+
+/*  LDQ     (input) INTEGER */
+/*          The leading dimension of the array Q. LDQ >= 1; */
+/*          If WANTQ = .TRUE., LDQ >= N. */
+
+/*  Z       (input/output) COMPLEX*16 array, dimension (LDZ,N) */
+/*          If WANTZ = .TRUE, on entry, the unitary matrix Z. On exit, */
+/*          the updated matrix Z. */
+/*          Not referenced if WANTZ = .FALSE.. */
+
+/*  LDZ     (input) INTEGER */
+/*          The leading dimension of the array Z. LDZ >= 1; */
+/*          If WANTZ = .TRUE., LDZ >= N. */
+
+/*  J1      (input) INTEGER */
+/*          The index to the first block (A11, B11). */
+
+/*  INFO    (output) INTEGER */
+/*           =0:  Successful exit. */
+/*           =1:  The transformed matrix pair (A, B) would be too far */
+/*                from generalized Schur form; the problem is ill- */
+/*                conditioned. */
+
+
+/*  Further Details */
+/*  =============== */
+
+/*  Based on contributions by */
+/*     Bo Kagstrom and Peter Poromaa, Department of Computing Science, */
+/*     Umea University, S-901 87 Umea, Sweden. */
+
+/*  In the current code both weak and strong stability tests are */
+/*  performed. The user can omit the strong stability test by changing */
+/*  the internal logical parameter WANDS to .FALSE.. See ref. [2] for */
+/*  details. */
+
+/*  [1] B. Kagstrom; A Direct Method for Reordering Eigenvalues in the */
+/*      Generalized Real Schur Form of a Regular Matrix Pair (A, B), in */
+/*      M.S. Moonen et al (eds), Linear Algebra for Large Scale and */
+/*      Real-Time Applications, Kluwer Academic Publ. 1993, pp 195-218. */
+
+/*  [2] B. Kagstrom and P. Poromaa; Computing Eigenspaces with Specified */
+/*      Eigenvalues of a Regular Matrix Pair (A, B) and Condition */
+/*      Estimation: Theory, Algorithms and Software, Report UMINF-94.04, */
+/*      Department of Computing Science, Umea University, S-901 87 Umea, */
+/*      Sweden, 1994. Also as LAPACK Working Note 87. To appear in */
+/*      Numerical Algorithms, 1996. */
+
+/*  ===================================================================== */
+
+/*     .. Parameters .. */
+/*     .. */
+/*     .. Local Scalars .. */
+/*     .. */
+/*     .. Local Arrays .. */
+/*     .. */
+/*     .. External Functions .. */
+/*     .. */
+/*     .. External Subroutines .. */
+/*     .. */
+/*     .. Intrinsic Functions .. */
+/*     .. */
+/*     .. Executable Statements .. */
+
+    /* Parameter adjustments */
+    a_dim1 = *lda;
+    a_offset = 1 + a_dim1;
+    a -= a_offset;
+    b_dim1 = *ldb;
+    b_offset = 1 + b_dim1;
+    b -= b_offset;
+    q_dim1 = *ldq;
+    q_offset = 1 + q_dim1;
+    q -= q_offset;
+    z_dim1 = *ldz;
+    z_offset = 1 + z_dim1;
+    z__ -= z_offset;
+
+    /* Function Body */
+    *info = 0;
+
+/*     Quick return if possible */
+
+    if (*n <= 1) {
+	return 0;
+    }
+
+    m = 2;
+    weak = FALSE_;
+    dtrong = FALSE_;
+
+/*     Make a local copy of selected block in (A, B) */
+
+    zlacpy_("Full", &m, &m, &a[*j1 + *j1 * a_dim1], lda, s, &c__2);
+    zlacpy_("Full", &m, &m, &b[*j1 + *j1 * b_dim1], ldb, t, &c__2);
+
+/*     Compute the threshold for testing the acceptance of swapping. */
+
+    eps = dlamch_("P");
+    smlnum = dlamch_("S") / eps;
+    scale = 0.;
+    sum = 1.;
+    zlacpy_("Full", &m, &m, s, &c__2, work, &m);
+    zlacpy_("Full", &m, &m, t, &c__2, &work[m * m], &m);
+    i__1 = (m << 1) * m;
+    zlassq_(&i__1, work, &c__1, &scale, &sum);
+    sa = scale * sqrt(sum);
+/* Computing MAX */
+    d__1 = eps * 10. * sa;
+    thresh = max(d__1,smlnum);
+
+/*     Compute unitary QL and RQ that swap 1-by-1 and 1-by-1 blocks */
+/*     using Givens rotations and perform the swap tentatively. */
+
+    z__2.r = s[3].r * t[0].r - s[3].i * t[0].i, z__2.i = s[3].r * t[0].i + s[
+	    3].i * t[0].r;
+    z__3.r = t[3].r * s[0].r - t[3].i * s[0].i, z__3.i = t[3].r * s[0].i + t[
+	    3].i * s[0].r;
+    z__1.r = z__2.r - z__3.r, z__1.i = z__2.i - z__3.i;
+    f.r = z__1.r, f.i = z__1.i;
+    z__2.r = s[3].r * t[2].r - s[3].i * t[2].i, z__2.i = s[3].r * t[2].i + s[
+	    3].i * t[2].r;
+    z__3.r = t[3].r * s[2].r - t[3].i * s[2].i, z__3.i = t[3].r * s[2].i + t[
+	    3].i * s[2].r;
+    z__1.r = z__2.r - z__3.r, z__1.i = z__2.i - z__3.i;
+    g.r = z__1.r, g.i = z__1.i;
+    sa = z_abs(&s[3]);
+    sb = z_abs(&t[3]);
+    zlartg_(&g, &f, &cz, &sz, &cdum);
+    z__1.r = -sz.r, z__1.i = -sz.i;
+    sz.r = z__1.r, sz.i = z__1.i;
+    d_cnjg(&z__1, &sz);
+    zrot_(&c__2, s, &c__1, &s[2], &c__1, &cz, &z__1);
+    d_cnjg(&z__1, &sz);
+    zrot_(&c__2, t, &c__1, &t[2], &c__1, &cz, &z__1);
+    if (sa >= sb) {
+	zlartg_(s, &s[1], &cq, &sq, &cdum);
+    } else {
+	zlartg_(t, &t[1], &cq, &sq, &cdum);
+    }
+    zrot_(&c__2, s, &c__2, &s[1], &c__2, &cq, &sq);
+    zrot_(&c__2, t, &c__2, &t[1], &c__2, &cq, &sq);
+
+/*     Weak stability test: |S21| + |T21| <= O(EPS F-norm((S, T))) */
+
+    ws = z_abs(&s[1]) + z_abs(&t[1]);
+    weak = ws <= thresh;
+    if (! weak) {
+	goto L20;
+    }
+
+    if (TRUE_) {
+
+/*        Strong stability test: */
+/*           F-norm((A-QL'*S*QR, B-QL'*T*QR)) <= O(EPS*F-norm((A, B))) */
+
+	zlacpy_("Full", &m, &m, s, &c__2, work, &m);
+	zlacpy_("Full", &m, &m, t, &c__2, &work[m * m], &m);
+	d_cnjg(&z__2, &sz);
+	z__1.r = -z__2.r, z__1.i = -z__2.i;
+	zrot_(&c__2, work, &c__1, &work[2], &c__1, &cz, &z__1);
+	d_cnjg(&z__2, &sz);
+	z__1.r = -z__2.r, z__1.i = -z__2.i;
+	zrot_(&c__2, &work[4], &c__1, &work[6], &c__1, &cz, &z__1);
+	z__1.r = -sq.r, z__1.i = -sq.i;
+	zrot_(&c__2, work, &c__2, &work[1], &c__2, &cq, &z__1);
+	z__1.r = -sq.r, z__1.i = -sq.i;
+	zrot_(&c__2, &work[4], &c__2, &work[5], &c__2, &cq, &z__1);
+	for (i__ = 1; i__ <= 2; ++i__) {
+	    i__1 = i__ - 1;
+	    i__2 = i__ - 1;
+	    i__3 = *j1 + i__ - 1 + *j1 * a_dim1;
+	    z__1.r = work[i__2].r - a[i__3].r, z__1.i = work[i__2].i - a[i__3]
+		    .i;
+	    work[i__1].r = z__1.r, work[i__1].i = z__1.i;
+	    i__1 = i__ + 1;
+	    i__2 = i__ + 1;
+	    i__3 = *j1 + i__ - 1 + (*j1 + 1) * a_dim1;
+	    z__1.r = work[i__2].r - a[i__3].r, z__1.i = work[i__2].i - a[i__3]
+		    .i;
+	    work[i__1].r = z__1.r, work[i__1].i = z__1.i;
+	    i__1 = i__ + 3;
+	    i__2 = i__ + 3;
+	    i__3 = *j1 + i__ - 1 + *j1 * b_dim1;
+	    z__1.r = work[i__2].r - b[i__3].r, z__1.i = work[i__2].i - b[i__3]
+		    .i;
+	    work[i__1].r = z__1.r, work[i__1].i = z__1.i;
+	    i__1 = i__ + 5;
+	    i__2 = i__ + 5;
+	    i__3 = *j1 + i__ - 1 + (*j1 + 1) * b_dim1;
+	    z__1.r = work[i__2].r - b[i__3].r, z__1.i = work[i__2].i - b[i__3]
+		    .i;
+	    work[i__1].r = z__1.r, work[i__1].i = z__1.i;
+/* L10: */
+	}
+	scale = 0.;
+	sum = 1.;
+	i__1 = (m << 1) * m;
+	zlassq_(&i__1, work, &c__1, &scale, &sum);
+	ss = scale * sqrt(sum);
+	dtrong = ss <= thresh;
+	if (! dtrong) {
+	    goto L20;
+	}
+    }
+
+/*     If the swap is accepted ("weakly" and "strongly"), apply the */
+/*     equivalence transformations to the original matrix pair (A,B) */
+
+    i__1 = *j1 + 1;
+    d_cnjg(&z__1, &sz);
+    zrot_(&i__1, &a[*j1 * a_dim1 + 1], &c__1, &a[(*j1 + 1) * a_dim1 + 1], &
+	    c__1, &cz, &z__1);
+    i__1 = *j1 + 1;
+    d_cnjg(&z__1, &sz);
+    zrot_(&i__1, &b[*j1 * b_dim1 + 1], &c__1, &b[(*j1 + 1) * b_dim1 + 1], &
+	    c__1, &cz, &z__1);
+    i__1 = *n - *j1 + 1;
+    zrot_(&i__1, &a[*j1 + *j1 * a_dim1], lda, &a[*j1 + 1 + *j1 * a_dim1], lda, 
+	     &cq, &sq);
+    i__1 = *n - *j1 + 1;
+    zrot_(&i__1, &b[*j1 + *j1 * b_dim1], ldb, &b[*j1 + 1 + *j1 * b_dim1], ldb, 
+	     &cq, &sq);
+
+/*     Set  N1 by N2 (2,1) blocks to 0 */
+
+    i__1 = *j1 + 1 + *j1 * a_dim1;
+    a[i__1].r = 0., a[i__1].i = 0.;
+    i__1 = *j1 + 1 + *j1 * b_dim1;
+    b[i__1].r = 0., b[i__1].i = 0.;
+
+/*     Accumulate transformations into Q and Z if requested. */
+
+    if (*wantz) {
+	d_cnjg(&z__1, &sz);
+	zrot_(n, &z__[*j1 * z_dim1 + 1], &c__1, &z__[(*j1 + 1) * z_dim1 + 1], 
+		&c__1, &cz, &z__1);
+    }
+    if (*wantq) {
+	d_cnjg(&z__1, &sq);
+	zrot_(n, &q[*j1 * q_dim1 + 1], &c__1, &q[(*j1 + 1) * q_dim1 + 1], &
+		c__1, &cq, &z__1);
+    }
+
+/*     Exit with INFO = 0 if swap was successfully performed. */
+
+    return 0;
+
+/*     Exit with INFO = 1 if swap was rejected. */
+
+L20:
+    *info = 1;
+    return 0;
+
+/*     End of ZTGEX2 */
+
+} /* ztgex2_ */