[] add metering mode to CLI

1 files changed, 216 insertions, 0 deletions

diff --git a/contrib/libs/clapack/zpttrf.c b/contrib/libs/clapack/zpttrf.c
new file mode 100644
index 0000000000..9fb3b09c17
--- /dev/null
+++ b/contrib/libs/clapack/zpttrf.c
@@ -0,0 +1,216 @@
+/* zpttrf.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 zpttrf_(integer *n, doublereal *d__, doublecomplex *e, 
+	integer *info)
+{
+    /* System generated locals */
+    integer i__1, i__2;
+    doublecomplex z__1;
+
+    /* Builtin functions */
+    double d_imag(doublecomplex *);
+
+    /* Local variables */
+    doublereal f, g;
+    integer i__, i4;
+    doublereal eii, eir;
+    extern /* Subroutine */ int xerbla_(char *, integer *);
+
+
+/*  -- LAPACK routine (version 3.2) -- */
+/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
+/*     November 2006 */
+
+/*     .. Scalar Arguments .. */
+/*     .. */
+/*     .. Array Arguments .. */
+/*     .. */
+
+/*  Purpose */
+/*  ======= */
+
+/*  ZPTTRF computes the L*D*L' factorization of a complex Hermitian */
+/*  positive definite tridiagonal matrix A.  The factorization may also */
+/*  be regarded as having the form A = U'*D*U. */
+
+/*  Arguments */
+/*  ========= */
+
+/*  N       (input) INTEGER */
+/*          The order of the matrix A.  N >= 0. */
+
+/*  D       (input/output) DOUBLE PRECISION array, dimension (N) */
+/*          On entry, the n diagonal elements of the tridiagonal matrix */
+/*          A.  On exit, the n diagonal elements of the diagonal matrix */
+/*          D from the L*D*L' factorization of A. */
+
+/*  E       (input/output) COMPLEX*16 array, dimension (N-1) */
+/*          On entry, the (n-1) subdiagonal elements of the tridiagonal */
+/*          matrix A.  On exit, the (n-1) subdiagonal elements of the */
+/*          unit bidiagonal factor L from the L*D*L' factorization of A. */
+/*          E can also be regarded as the superdiagonal of the unit */
+/*          bidiagonal factor U from the U'*D*U factorization of A. */
+
+/*  INFO    (output) INTEGER */
+/*          = 0: successful exit */
+/*          < 0: if INFO = -k, the k-th argument had an illegal value */
+/*          > 0: if INFO = k, the leading minor of order k is not */
+/*               positive definite; if k < N, the factorization could not */
+/*               be completed, while if k = N, the factorization was */
+/*               completed, but D(N) <= 0. */
+
+/*  ===================================================================== */
+
+/*     .. Parameters .. */
+/*     .. */
+/*     .. Local Scalars .. */
+/*     .. */
+/*     .. External Subroutines .. */
+/*     .. */
+/*     .. Intrinsic Functions .. */
+/*     .. */
+/*     .. Executable Statements .. */
+
+/*     Test the input parameters. */
+
+    /* Parameter adjustments */
+    --e;
+    --d__;
+
+    /* Function Body */
+    *info = 0;
+    if (*n < 0) {
+	*info = -1;
+	i__1 = -(*info);
+	xerbla_("ZPTTRF", &i__1);
+	return 0;
+    }
+
+/*     Quick return if possible */
+
+    if (*n == 0) {
+	return 0;
+    }
+
+/*     Compute the L*D*L' (or U'*D*U) factorization of A. */
+
+    i4 = (*n - 1) % 4;
+    i__1 = i4;
+    for (i__ = 1; i__ <= i__1; ++i__) {
+	if (d__[i__] <= 0.) {
+	    *info = i__;
+	    goto L30;
+	}
+	i__2 = i__;
+	eir = e[i__2].r;
+	eii = d_imag(&e[i__]);
+	f = eir / d__[i__];
+	g = eii / d__[i__];
+	i__2 = i__;
+	z__1.r = f, z__1.i = g;
+	e[i__2].r = z__1.r, e[i__2].i = z__1.i;
+	d__[i__ + 1] = d__[i__ + 1] - f * eir - g * eii;
+/* L10: */
+    }
+
+    i__1 = *n - 4;
+    for (i__ = i4 + 1; i__ <= i__1; i__ += 4) {
+
+/*        Drop out of the loop if d(i) <= 0: the matrix is not positive */
+/*        definite. */
+
+	if (d__[i__] <= 0.) {
+	    *info = i__;
+	    goto L30;
+	}
+
+/*        Solve for e(i) and d(i+1). */
+
+	i__2 = i__;
+	eir = e[i__2].r;
+	eii = d_imag(&e[i__]);
+	f = eir / d__[i__];
+	g = eii / d__[i__];
+	i__2 = i__;
+	z__1.r = f, z__1.i = g;
+	e[i__2].r = z__1.r, e[i__2].i = z__1.i;
+	d__[i__ + 1] = d__[i__ + 1] - f * eir - g * eii;
+
+	if (d__[i__ + 1] <= 0.) {
+	    *info = i__ + 1;
+	    goto L30;
+	}
+
+/*        Solve for e(i+1) and d(i+2). */
+
+	i__2 = i__ + 1;
+	eir = e[i__2].r;
+	eii = d_imag(&e[i__ + 1]);
+	f = eir / d__[i__ + 1];
+	g = eii / d__[i__ + 1];
+	i__2 = i__ + 1;
+	z__1.r = f, z__1.i = g;
+	e[i__2].r = z__1.r, e[i__2].i = z__1.i;
+	d__[i__ + 2] = d__[i__ + 2] - f * eir - g * eii;
+
+	if (d__[i__ + 2] <= 0.) {
+	    *info = i__ + 2;
+	    goto L30;
+	}
+
+/*        Solve for e(i+2) and d(i+3). */
+
+	i__2 = i__ + 2;
+	eir = e[i__2].r;
+	eii = d_imag(&e[i__ + 2]);
+	f = eir / d__[i__ + 2];
+	g = eii / d__[i__ + 2];
+	i__2 = i__ + 2;
+	z__1.r = f, z__1.i = g;
+	e[i__2].r = z__1.r, e[i__2].i = z__1.i;
+	d__[i__ + 3] = d__[i__ + 3] - f * eir - g * eii;
+
+	if (d__[i__ + 3] <= 0.) {
+	    *info = i__ + 3;
+	    goto L30;
+	}
+
+/*        Solve for e(i+3) and d(i+4). */
+
+	i__2 = i__ + 3;
+	eir = e[i__2].r;
+	eii = d_imag(&e[i__ + 3]);
+	f = eir / d__[i__ + 3];
+	g = eii / d__[i__ + 3];
+	i__2 = i__ + 3;
+	z__1.r = f, z__1.i = g;
+	e[i__2].r = z__1.r, e[i__2].i = z__1.i;
+	d__[i__ + 4] = d__[i__ + 4] - f * eir - g * eii;
+/* L20: */
+    }
+
+/*     Check d(n) for positive definiteness. */
+
+    if (d__[*n] <= 0.) {
+	*info = *n;
+    }
+
+L30:
+    return 0;
+
+/*     End of ZPTTRF */
+
+} /* zpttrf_ */