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author | shmel1k <shmel1k@ydb.tech> | 2022-09-02 12:44:59 +0300 |
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committer | shmel1k <shmel1k@ydb.tech> | 2022-09-02 12:44:59 +0300 |
commit | 90d450f74722da7859d6f510a869f6c6908fd12f (patch) | |
tree | 538c718dedc76cdfe37ad6d01ff250dd930d9278 /contrib/libs/clapack/zsyr.c | |
parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
download | ydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz |
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/clapack/zsyr.c')
-rw-r--r-- | contrib/libs/clapack/zsyr.c | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/contrib/libs/clapack/zsyr.c b/contrib/libs/clapack/zsyr.c new file mode 100644 index 0000000000..81d2ef83ae --- /dev/null +++ b/contrib/libs/clapack/zsyr.c @@ -0,0 +1,289 @@ +/* zsyr.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 zsyr_(char *uplo, integer *n, doublecomplex *alpha, + doublecomplex *x, integer *incx, doublecomplex *a, integer *lda) +{ + /* System generated locals */ + integer a_dim1, a_offset, i__1, i__2, i__3, i__4, i__5; + doublecomplex z__1, z__2; + + /* Local variables */ + integer i__, j, ix, jx, kx, info; + doublecomplex temp; + extern logical lsame_(char *, char *); + extern /* Subroutine */ int xerbla_(char *, integer *); + + +/* -- LAPACK auxiliary routine (version 3.2) -- */ +/* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */ +/* November 2006 */ + +/* .. Scalar Arguments .. */ +/* .. */ +/* .. Array Arguments .. */ +/* .. */ + +/* Purpose */ +/* ======= */ + +/* ZSYR performs the symmetric rank 1 operation */ + +/* A := alpha*x*( x' ) + A, */ + +/* where alpha is a complex scalar, x is an n element vector and A is an */ +/* n by n symmetric matrix. */ + +/* Arguments */ +/* ========== */ + +/* UPLO (input) CHARACTER*1 */ +/* On entry, UPLO specifies whether the upper or lower */ +/* triangular part of the array A is to be referenced as */ +/* follows: */ + +/* UPLO = 'U' or 'u' Only the upper triangular part of A */ +/* is to be referenced. */ + +/* UPLO = 'L' or 'l' Only the lower triangular part of A */ +/* is to be referenced. */ + +/* Unchanged on exit. */ + +/* N (input) INTEGER */ +/* On entry, N specifies the order of the matrix A. */ +/* N must be at least zero. */ +/* Unchanged on exit. */ + +/* ALPHA (input) COMPLEX*16 */ +/* On entry, ALPHA specifies the scalar alpha. */ +/* Unchanged on exit. */ + +/* X (input) COMPLEX*16 array, dimension at least */ +/* ( 1 + ( N - 1 )*abs( INCX ) ). */ +/* Before entry, the incremented array X must contain the N- */ +/* element vector x. */ +/* Unchanged on exit. */ + +/* INCX (input) INTEGER */ +/* On entry, INCX specifies the increment for the elements of */ +/* X. INCX must not be zero. */ +/* Unchanged on exit. */ + +/* A (input/output) COMPLEX*16 array, dimension ( LDA, N ) */ +/* Before entry, with UPLO = 'U' or 'u', the leading n by n */ +/* upper triangular part of the array A must contain the upper */ +/* triangular part of the symmetric matrix and the strictly */ +/* lower triangular part of A is not referenced. On exit, the */ +/* upper triangular part of the array A is overwritten by the */ +/* upper triangular part of the updated matrix. */ +/* Before entry, with UPLO = 'L' or 'l', the leading n by n */ +/* lower triangular part of the array A must contain the lower */ +/* triangular part of the symmetric matrix and the strictly */ +/* upper triangular part of A is not referenced. On exit, the */ +/* lower triangular part of the array A is overwritten by the */ +/* lower triangular part of the updated matrix. */ + +/* LDA (input) INTEGER */ +/* On entry, LDA specifies the first dimension of A as declared */ +/* in the calling (sub) program. LDA must be at least */ +/* max( 1, N ). */ +/* Unchanged on exit. */ + +/* ===================================================================== */ + +/* .. Parameters .. */ +/* .. */ +/* .. Local Scalars .. */ +/* .. */ +/* .. External Functions .. */ +/* .. */ +/* .. External Subroutines .. */ +/* .. */ +/* .. Intrinsic Functions .. */ +/* .. */ +/* .. Executable Statements .. */ + +/* Test the input parameters. */ + + /* Parameter adjustments */ + --x; + a_dim1 = *lda; + a_offset = 1 + a_dim1; + a -= a_offset; + + /* Function Body */ + info = 0; + if (! lsame_(uplo, "U") && ! lsame_(uplo, "L")) { + info = 1; + } else if (*n < 0) { + info = 2; + } else if (*incx == 0) { + info = 5; + } else if (*lda < max(1,*n)) { + info = 7; + } + if (info != 0) { + xerbla_("ZSYR ", &info); + return 0; + } + +/* Quick return if possible. */ + + if (*n == 0 || alpha->r == 0. && alpha->i == 0.) { + return 0; + } + +/* Set the start point in X if the increment is not unity. */ + + if (*incx <= 0) { + kx = 1 - (*n - 1) * *incx; + } else if (*incx != 1) { + kx = 1; + } + +/* Start the operations. In this version the elements of A are */ +/* accessed sequentially with one pass through the triangular part */ +/* of A. */ + + if (lsame_(uplo, "U")) { + +/* Form A when A is stored in upper triangle. */ + + if (*incx == 1) { + i__1 = *n; + for (j = 1; j <= i__1; ++j) { + i__2 = j; + if (x[i__2].r != 0. || x[i__2].i != 0.) { + i__2 = j; + z__1.r = alpha->r * x[i__2].r - alpha->i * x[i__2].i, + z__1.i = alpha->r * x[i__2].i + alpha->i * x[i__2] + .r; + temp.r = z__1.r, temp.i = z__1.i; + i__2 = j; + for (i__ = 1; i__ <= i__2; ++i__) { + i__3 = i__ + j * a_dim1; + i__4 = i__ + j * a_dim1; + i__5 = i__; + z__2.r = x[i__5].r * temp.r - x[i__5].i * temp.i, + z__2.i = x[i__5].r * temp.i + x[i__5].i * + temp.r; + z__1.r = a[i__4].r + z__2.r, z__1.i = a[i__4].i + + z__2.i; + a[i__3].r = z__1.r, a[i__3].i = z__1.i; +/* L10: */ + } + } +/* L20: */ + } + } else { + jx = kx; + i__1 = *n; + for (j = 1; j <= i__1; ++j) { + i__2 = jx; + if (x[i__2].r != 0. || x[i__2].i != 0.) { + i__2 = jx; + z__1.r = alpha->r * x[i__2].r - alpha->i * x[i__2].i, + z__1.i = alpha->r * x[i__2].i + alpha->i * x[i__2] + .r; + temp.r = z__1.r, temp.i = z__1.i; + ix = kx; + i__2 = j; + for (i__ = 1; i__ <= i__2; ++i__) { + i__3 = i__ + j * a_dim1; + i__4 = i__ + j * a_dim1; + i__5 = ix; + z__2.r = x[i__5].r * temp.r - x[i__5].i * temp.i, + z__2.i = x[i__5].r * temp.i + x[i__5].i * + temp.r; + z__1.r = a[i__4].r + z__2.r, z__1.i = a[i__4].i + + z__2.i; + a[i__3].r = z__1.r, a[i__3].i = z__1.i; + ix += *incx; +/* L30: */ + } + } + jx += *incx; +/* L40: */ + } + } + } else { + +/* Form A when A is stored in lower triangle. */ + + if (*incx == 1) { + i__1 = *n; + for (j = 1; j <= i__1; ++j) { + i__2 = j; + if (x[i__2].r != 0. || x[i__2].i != 0.) { + i__2 = j; + z__1.r = alpha->r * x[i__2].r - alpha->i * x[i__2].i, + z__1.i = alpha->r * x[i__2].i + alpha->i * x[i__2] + .r; + temp.r = z__1.r, temp.i = z__1.i; + i__2 = *n; + for (i__ = j; i__ <= i__2; ++i__) { + i__3 = i__ + j * a_dim1; + i__4 = i__ + j * a_dim1; + i__5 = i__; + z__2.r = x[i__5].r * temp.r - x[i__5].i * temp.i, + z__2.i = x[i__5].r * temp.i + x[i__5].i * + temp.r; + z__1.r = a[i__4].r + z__2.r, z__1.i = a[i__4].i + + z__2.i; + a[i__3].r = z__1.r, a[i__3].i = z__1.i; +/* L50: */ + } + } +/* L60: */ + } + } else { + jx = kx; + i__1 = *n; + for (j = 1; j <= i__1; ++j) { + i__2 = jx; + if (x[i__2].r != 0. || x[i__2].i != 0.) { + i__2 = jx; + z__1.r = alpha->r * x[i__2].r - alpha->i * x[i__2].i, + z__1.i = alpha->r * x[i__2].i + alpha->i * x[i__2] + .r; + temp.r = z__1.r, temp.i = z__1.i; + ix = jx; + i__2 = *n; + for (i__ = j; i__ <= i__2; ++i__) { + i__3 = i__ + j * a_dim1; + i__4 = i__ + j * a_dim1; + i__5 = ix; + z__2.r = x[i__5].r * temp.r - x[i__5].i * temp.i, + z__2.i = x[i__5].r * temp.i + x[i__5].i * + temp.r; + z__1.r = a[i__4].r + z__2.r, z__1.i = a[i__4].i + + z__2.i; + a[i__3].r = z__1.r, a[i__3].i = z__1.i; + ix += *incx; +/* L70: */ + } + } + jx += *incx; +/* L80: */ + } + } + } + + return 0; + +/* End of ZSYR */ + +} /* zsyr_ */ |