[] add metering mode to CLI

1 files changed, 126 insertions, 0 deletions

diff --git a/contrib/libs/clapack/slapll.c b/contrib/libs/clapack/slapll.c
new file mode 100644
index 0000000000..45c30f1ebd
--- /dev/null
+++ b/contrib/libs/clapack/slapll.c
@@ -0,0 +1,126 @@
+/* slapll.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"
+
+/* Subroutine */ int slapll_(integer *n, real *x, integer *incx, real *y, 
+	integer *incy, real *ssmin)
+{
+    /* System generated locals */
+    integer i__1;
+
+    /* Local variables */
+    real c__, a11, a12, a22, tau;
+    extern doublereal sdot_(integer *, real *, integer *, real *, integer *);
+    extern /* Subroutine */ int slas2_(real *, real *, real *, real *, real *)
+	    ;
+    real ssmax;
+    extern /* Subroutine */ int saxpy_(integer *, real *, real *, integer *, 
+	    real *, integer *), slarfg_(integer *, real *, real *, integer *, 
+	    real *);
+
+
+/*  -- LAPACK auxiliary routine (version 3.2) -- */
+/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
+/*     November 2006 */
+
+/*     .. Scalar Arguments .. */
+/*     .. */
+/*     .. Array Arguments .. */
+/*     .. */
+
+/*  Purpose */
+/*  ======= */
+
+/*  Given two column vectors X and Y, let */
+
+/*                       A = ( X Y ). */
+
+/*  The subroutine first computes the QR factorization of A = Q*R, */
+/*  and then computes the SVD of the 2-by-2 upper triangular matrix R. */
+/*  The smaller singular value of R is returned in SSMIN, which is used */
+/*  as the measurement of the linear dependency of the vectors X and Y. */
+
+/*  Arguments */
+/*  ========= */
+
+/*  N       (input) INTEGER */
+/*          The length of the vectors X and Y. */
+
+/*  X       (input/output) REAL array, */
+/*                         dimension (1+(N-1)*INCX) */
+/*          On entry, X contains the N-vector X. */
+/*          On exit, X is overwritten. */
+
+/*  INCX    (input) INTEGER */
+/*          The increment between successive elements of X. INCX > 0. */
+
+/*  Y       (input/output) REAL array, */
+/*                         dimension (1+(N-1)*INCY) */
+/*          On entry, Y contains the N-vector Y. */
+/*          On exit, Y is overwritten. */
+
+/*  INCY    (input) INTEGER */
+/*          The increment between successive elements of Y. INCY > 0. */
+
+/*  SSMIN   (output) REAL */
+/*          The smallest singular value of the N-by-2 matrix A = ( X Y ). */
+
+/*  ===================================================================== */
+
+/*     .. Parameters .. */
+/*     .. */
+/*     .. Local Scalars .. */
+/*     .. */
+/*     .. External Functions .. */
+/*     .. */
+/*     .. External Subroutines .. */
+/*     .. */
+/*     .. Executable Statements .. */
+
+/*     Quick return if possible */
+
+    /* Parameter adjustments */
+    --y;
+    --x;
+
+    /* Function Body */
+    if (*n <= 1) {
+	*ssmin = 0.f;
+	return 0;
+    }
+
+/*     Compute the QR factorization of the N-by-2 matrix ( X Y ) */
+
+    slarfg_(n, &x[1], &x[*incx + 1], incx, &tau);
+    a11 = x[1];
+    x[1] = 1.f;
+
+    c__ = -tau * sdot_(n, &x[1], incx, &y[1], incy);
+    saxpy_(n, &c__, &x[1], incx, &y[1], incy);
+
+    i__1 = *n - 1;
+    slarfg_(&i__1, &y[*incy + 1], &y[(*incy << 1) + 1], incy, &tau);
+
+    a12 = y[1];
+    a22 = y[*incy + 1];
+
+/*     Compute the SVD of 2-by-2 Upper triangular matrix. */
+
+    slas2_(&a11, &a12, &a22, ssmin, &ssmax);
+
+    return 0;
+
+/*     End of SLAPLL */
+
+} /* slapll_ */