[] add metering mode to CLI

1 files changed, 243 insertions, 0 deletions

diff --git a/contrib/libs/clapack/zpteqr.c b/contrib/libs/clapack/zpteqr.c
new file mode 100644
index 0000000000..95584cf95e
--- /dev/null
+++ b/contrib/libs/clapack/zpteqr.c
@@ -0,0 +1,243 @@
+/* zpteqr.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 doublecomplex c_b1 = {0.,0.};
+static doublecomplex c_b2 = {1.,0.};
+static integer c__0 = 0;
+static integer c__1 = 1;
+
+/* Subroutine */ int zpteqr_(char *compz, integer *n, doublereal *d__, 
+	doublereal *e, doublecomplex *z__, integer *ldz, doublereal *work, 
+	integer *info)
+{
+    /* System generated locals */
+    integer z_dim1, z_offset, i__1;
+
+    /* Builtin functions */
+    double sqrt(doublereal);
+
+    /* Local variables */
+    doublecomplex c__[1]	/* was [1][1] */;
+    integer i__;
+    doublecomplex vt[1]	/* was [1][1] */;
+    integer nru;
+    extern logical lsame_(char *, char *);
+    extern /* Subroutine */ int xerbla_(char *, integer *);
+    integer icompz;
+    extern /* Subroutine */ int zlaset_(char *, integer *, integer *, 
+	    doublecomplex *, doublecomplex *, doublecomplex *, integer *), dpttrf_(integer *, doublereal *, doublereal *, integer *)
+	    , zbdsqr_(char *, integer *, integer *, integer *, integer *, 
+	    doublereal *, doublereal *, doublecomplex *, integer *, 
+	    doublecomplex *, integer *, doublecomplex *, integer *, 
+	    doublereal *, integer *);
+
+
+/*  -- LAPACK routine (version 3.2) -- */
+/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
+/*     November 2006 */
+
+/*     .. Scalar Arguments .. */
+/*     .. */
+/*     .. Array Arguments .. */
+/*     .. */
+
+/*  Purpose */
+/*  ======= */
+
+/*  ZPTEQR computes all eigenvalues and, optionally, eigenvectors of a */
+/*  symmetric positive definite tridiagonal matrix by first factoring the */
+/*  matrix using DPTTRF and then calling ZBDSQR to compute the singular */
+/*  values of the bidiagonal factor. */
+
+/*  This routine computes the eigenvalues of the positive definite */
+/*  tridiagonal matrix to high relative accuracy.  This means that if the */
+/*  eigenvalues range over many orders of magnitude in size, then the */
+/*  small eigenvalues and corresponding eigenvectors will be computed */
+/*  more accurately than, for example, with the standard QR method. */
+
+/*  The eigenvectors of a full or band positive definite Hermitian matrix */
+/*  can also be found if ZHETRD, ZHPTRD, or ZHBTRD has been used to */
+/*  reduce this matrix to tridiagonal form.  (The reduction to */
+/*  tridiagonal form, however, may preclude the possibility of obtaining */
+/*  high relative accuracy in the small eigenvalues of the original */
+/*  matrix, if these eigenvalues range over many orders of magnitude.) */
+
+/*  Arguments */
+/*  ========= */
+
+/*  COMPZ   (input) CHARACTER*1 */
+/*          = 'N':  Compute eigenvalues only. */
+/*          = 'V':  Compute eigenvectors of original Hermitian */
+/*                  matrix also.  Array Z contains the unitary matrix */
+/*                  used to reduce the original matrix to tridiagonal */
+/*                  form. */
+/*          = 'I':  Compute eigenvectors of tridiagonal matrix also. */
+
+/*  N       (input) INTEGER */
+/*          The order of the matrix.  N >= 0. */
+
+/*  D       (input/output) DOUBLE PRECISION array, dimension (N) */
+/*          On entry, the n diagonal elements of the tridiagonal matrix. */
+/*          On normal exit, D contains the eigenvalues, in descending */
+/*          order. */
+
+/*  E       (input/output) DOUBLE PRECISION array, dimension (N-1) */
+/*          On entry, the (n-1) subdiagonal elements of the tridiagonal */
+/*          matrix. */
+/*          On exit, E has been destroyed. */
+
+/*  Z       (input/output) COMPLEX*16 array, dimension (LDZ, N) */
+/*          On entry, if COMPZ = 'V', the unitary matrix used in the */
+/*          reduction to tridiagonal form. */
+/*          On exit, if COMPZ = 'V', the orthonormal eigenvectors of the */
+/*          original Hermitian matrix; */
+/*          if COMPZ = 'I', the orthonormal eigenvectors of the */
+/*          tridiagonal matrix. */
+/*          If INFO > 0 on exit, Z contains the eigenvectors associated */
+/*          with only the stored eigenvalues. */
+/*          If  COMPZ = 'N', then Z is not referenced. */
+
+/*  LDZ     (input) INTEGER */
+/*          The leading dimension of the array Z.  LDZ >= 1, and if */
+/*          COMPZ = 'V' or 'I', LDZ >= max(1,N). */
+
+/*  WORK    (workspace) DOUBLE PRECISION array, dimension (4*N) */
+
+/*  INFO    (output) INTEGER */
+/*          = 0:  successful exit. */
+/*          < 0:  if INFO = -i, the i-th argument had an illegal value. */
+/*          > 0:  if INFO = i, and i is: */
+/*                <= N  the Cholesky factorization of the matrix could */
+/*                      not be performed because the i-th principal minor */
+/*                      was not positive definite. */
+/*                > N   the SVD algorithm failed to converge; */
+/*                      if INFO = N+i, i off-diagonal elements of the */
+/*                      bidiagonal factor did not converge to zero. */
+
+/*  ==================================================================== */
+
+/*     .. Parameters .. */
+/*     .. */
+/*     .. External Functions .. */
+/*     .. */
+/*     .. External Subroutines .. */
+/*     .. */
+/*     .. Local Arrays .. */
+/*     .. */
+/*     .. Local Scalars .. */
+/*     .. */
+/*     .. Intrinsic Functions .. */
+/*     .. */
+/*     .. Executable Statements .. */
+
+/*     Test the input parameters. */
+
+    /* Parameter adjustments */
+    --d__;
+    --e;
+    z_dim1 = *ldz;
+    z_offset = 1 + z_dim1;
+    z__ -= z_offset;
+    --work;
+
+    /* Function Body */
+    *info = 0;
+
+    if (lsame_(compz, "N")) {
+	icompz = 0;
+    } else if (lsame_(compz, "V")) {
+	icompz = 1;
+    } else if (lsame_(compz, "I")) {
+	icompz = 2;
+    } else {
+	icompz = -1;
+    }
+    if (icompz < 0) {
+	*info = -1;
+    } else if (*n < 0) {
+	*info = -2;
+    } else if (*ldz < 1 || icompz > 0 && *ldz < max(1,*n)) {
+	*info = -6;
+    }
+    if (*info != 0) {
+	i__1 = -(*info);
+	xerbla_("ZPTEQR", &i__1);
+	return 0;
+    }
+
+/*     Quick return if possible */
+
+    if (*n == 0) {
+	return 0;
+    }
+
+    if (*n == 1) {
+	if (icompz > 0) {
+	    i__1 = z_dim1 + 1;
+	    z__[i__1].r = 1., z__[i__1].i = 0.;
+	}
+	return 0;
+    }
+    if (icompz == 2) {
+	zlaset_("Full", n, n, &c_b1, &c_b2, &z__[z_offset], ldz);
+    }
+
+/*     Call DPTTRF to factor the matrix. */
+
+    dpttrf_(n, &d__[1], &e[1], info);
+    if (*info != 0) {
+	return 0;
+    }
+    i__1 = *n;
+    for (i__ = 1; i__ <= i__1; ++i__) {
+	d__[i__] = sqrt(d__[i__]);
+/* L10: */
+    }
+    i__1 = *n - 1;
+    for (i__ = 1; i__ <= i__1; ++i__) {
+	e[i__] *= d__[i__];
+/* L20: */
+    }
+
+/*     Call ZBDSQR to compute the singular values/vectors of the */
+/*     bidiagonal factor. */
+
+    if (icompz > 0) {
+	nru = *n;
+    } else {
+	nru = 0;
+    }
+    zbdsqr_("Lower", n, &c__0, &nru, &c__0, &d__[1], &e[1], vt, &c__1, &z__[
+	    z_offset], ldz, c__, &c__1, &work[1], info);
+
+/*     Square the singular values. */
+
+    if (*info == 0) {
+	i__1 = *n;
+	for (i__ = 1; i__ <= i__1; ++i__) {
+	    d__[i__] *= d__[i__];
+/* L30: */
+	}
+    } else {
+	*info = *n + *info;
+    }
+
+    return 0;
+
+/*     End of ZPTEQR */
+
+} /* zpteqr_ */