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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/cblas/sspr2.c | |
parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
download | ydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz |
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/cblas/sspr2.c')
-rw-r--r-- | contrib/libs/cblas/sspr2.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/contrib/libs/cblas/sspr2.c b/contrib/libs/cblas/sspr2.c new file mode 100644 index 0000000000..3fb675a6f1 --- /dev/null +++ b/contrib/libs/cblas/sspr2.c @@ -0,0 +1,269 @@ +/* sspr2.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 sspr2_(char *uplo, integer *n, real *alpha, real *x, + integer *incx, real *y, integer *incy, real *ap) +{ + /* System generated locals */ + integer i__1, i__2; + + /* Local variables */ + integer i__, j, k, kk, ix, iy, jx, jy, kx, ky, info; + real temp1, temp2; + extern logical lsame_(char *, char *); + extern /* Subroutine */ int xerbla_(char *, integer *); + +/* .. Scalar Arguments .. */ +/* .. */ +/* .. Array Arguments .. */ +/* .. */ + +/* Purpose */ +/* ======= */ + +/* SSPR2 performs the symmetric rank 2 operation */ + +/* A := alpha*x*y' + alpha*y*x' + A, */ + +/* where alpha is a scalar, x and y are n element vectors and A is an */ +/* n by n symmetric matrix, supplied in packed form. */ + +/* Arguments */ +/* ========== */ + +/* UPLO - CHARACTER*1. */ +/* On entry, UPLO specifies whether the upper or lower */ +/* triangular part of the matrix A is supplied in the packed */ +/* array AP as follows: */ + +/* UPLO = 'U' or 'u' The upper triangular part of A is */ +/* supplied in AP. */ + +/* UPLO = 'L' or 'l' The lower triangular part of A is */ +/* supplied in AP. */ + +/* Unchanged on exit. */ + +/* N - INTEGER. */ +/* On entry, N specifies the order of the matrix A. */ +/* N must be at least zero. */ +/* Unchanged on exit. */ + +/* ALPHA - REAL . */ +/* On entry, ALPHA specifies the scalar alpha. */ +/* Unchanged on exit. */ + +/* X - REAL array of 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 - INTEGER. */ +/* On entry, INCX specifies the increment for the elements of */ +/* X. INCX must not be zero. */ +/* Unchanged on exit. */ + +/* Y - REAL array of dimension at least */ +/* ( 1 + ( n - 1 )*abs( INCY ) ). */ +/* Before entry, the incremented array Y must contain the n */ +/* element vector y. */ +/* Unchanged on exit. */ + +/* INCY - INTEGER. */ +/* On entry, INCY specifies the increment for the elements of */ +/* Y. INCY must not be zero. */ +/* Unchanged on exit. */ + +/* AP - REAL array of DIMENSION at least */ +/* ( ( n*( n + 1 ) )/2 ). */ +/* Before entry with UPLO = 'U' or 'u', the array AP must */ +/* contain the upper triangular part of the symmetric matrix */ +/* packed sequentially, column by column, so that AP( 1 ) */ +/* contains a( 1, 1 ), AP( 2 ) and AP( 3 ) contain a( 1, 2 ) */ +/* and a( 2, 2 ) respectively, and so on. On exit, the array */ +/* AP is overwritten by the upper triangular part of the */ +/* updated matrix. */ +/* Before entry with UPLO = 'L' or 'l', the array AP must */ +/* contain the lower triangular part of the symmetric matrix */ +/* packed sequentially, column by column, so that AP( 1 ) */ +/* contains a( 1, 1 ), AP( 2 ) and AP( 3 ) contain a( 2, 1 ) */ +/* and a( 3, 1 ) respectively, and so on. On exit, the array */ +/* AP is overwritten by the lower triangular part of the */ +/* updated matrix. */ + + +/* Level 2 Blas routine. */ + +/* -- Written on 22-October-1986. */ +/* Jack Dongarra, Argonne National Lab. */ +/* Jeremy Du Croz, Nag Central Office. */ +/* Sven Hammarling, Nag Central Office. */ +/* Richard Hanson, Sandia National Labs. */ + + +/* .. Parameters .. */ +/* .. */ +/* .. Local Scalars .. */ +/* .. */ +/* .. External Functions .. */ +/* .. */ +/* .. External Subroutines .. */ +/* .. */ + +/* Test the input parameters. */ + + /* Parameter adjustments */ + --ap; + --y; + --x; + + /* 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 (*incy == 0) { + info = 7; + } + if (info != 0) { + xerbla_("SSPR2 ", &info); + return 0; + } + +/* Quick return if possible. */ + + if (*n == 0 || *alpha == 0.f) { + return 0; + } + +/* Set up the start points in X and Y if the increments are not both */ +/* unity. */ + + if (*incx != 1 || *incy != 1) { + if (*incx > 0) { + kx = 1; + } else { + kx = 1 - (*n - 1) * *incx; + } + if (*incy > 0) { + ky = 1; + } else { + ky = 1 - (*n - 1) * *incy; + } + jx = kx; + jy = ky; + } + +/* Start the operations. In this version the elements of the array AP */ +/* are accessed sequentially with one pass through AP. */ + + kk = 1; + if (lsame_(uplo, "U")) { + +/* Form A when upper triangle is stored in AP. */ + + if (*incx == 1 && *incy == 1) { + i__1 = *n; + for (j = 1; j <= i__1; ++j) { + if (x[j] != 0.f || y[j] != 0.f) { + temp1 = *alpha * y[j]; + temp2 = *alpha * x[j]; + k = kk; + i__2 = j; + for (i__ = 1; i__ <= i__2; ++i__) { + ap[k] = ap[k] + x[i__] * temp1 + y[i__] * temp2; + ++k; +/* L10: */ + } + } + kk += j; +/* L20: */ + } + } else { + i__1 = *n; + for (j = 1; j <= i__1; ++j) { + if (x[jx] != 0.f || y[jy] != 0.f) { + temp1 = *alpha * y[jy]; + temp2 = *alpha * x[jx]; + ix = kx; + iy = ky; + i__2 = kk + j - 1; + for (k = kk; k <= i__2; ++k) { + ap[k] = ap[k] + x[ix] * temp1 + y[iy] * temp2; + ix += *incx; + iy += *incy; +/* L30: */ + } + } + jx += *incx; + jy += *incy; + kk += j; +/* L40: */ + } + } + } else { + +/* Form A when lower triangle is stored in AP. */ + + if (*incx == 1 && *incy == 1) { + i__1 = *n; + for (j = 1; j <= i__1; ++j) { + if (x[j] != 0.f || y[j] != 0.f) { + temp1 = *alpha * y[j]; + temp2 = *alpha * x[j]; + k = kk; + i__2 = *n; + for (i__ = j; i__ <= i__2; ++i__) { + ap[k] = ap[k] + x[i__] * temp1 + y[i__] * temp2; + ++k; +/* L50: */ + } + } + kk = kk + *n - j + 1; +/* L60: */ + } + } else { + i__1 = *n; + for (j = 1; j <= i__1; ++j) { + if (x[jx] != 0.f || y[jy] != 0.f) { + temp1 = *alpha * y[jy]; + temp2 = *alpha * x[jx]; + ix = jx; + iy = jy; + i__2 = kk + *n - j; + for (k = kk; k <= i__2; ++k) { + ap[k] = ap[k] + x[ix] * temp1 + y[iy] * temp2; + ix += *incx; + iy += *incy; +/* L70: */ + } + } + jx += *incx; + jy += *incy; + kk = kk + *n - j + 1; +/* L80: */ + } + } + } + + return 0; + +/* End of SSPR2 . */ + +} /* sspr2_ */ |