diff options
author | shmel1k <shmel1k@ydb.tech> | 2022-09-02 12:44:59 +0300 |
---|---|---|
committer | shmel1k <shmel1k@ydb.tech> | 2022-09-02 12:44:59 +0300 |
commit | 90d450f74722da7859d6f510a869f6c6908fd12f (patch) | |
tree | 538c718dedc76cdfe37ad6d01ff250dd930d9278 /contrib/libs/clapack/clatzm.c | |
parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
download | ydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz |
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/clapack/clatzm.c')
-rw-r--r-- | contrib/libs/clapack/clatzm.c | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/contrib/libs/clapack/clatzm.c b/contrib/libs/clapack/clatzm.c new file mode 100644 index 0000000000..4daa3d44fd --- /dev/null +++ b/contrib/libs/clapack/clatzm.c @@ -0,0 +1,196 @@ +/* clatzm.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 complex c_b1 = {1.f,0.f}; +static integer c__1 = 1; + +/* Subroutine */ int clatzm_(char *side, integer *m, integer *n, complex *v, + integer *incv, complex *tau, complex *c1, complex *c2, integer *ldc, + complex *work) +{ + /* System generated locals */ + integer c1_dim1, c1_offset, c2_dim1, c2_offset, i__1; + complex q__1; + + /* Local variables */ + extern /* Subroutine */ int cgerc_(integer *, integer *, complex *, + complex *, integer *, complex *, integer *, complex *, integer *), + cgemv_(char *, integer *, integer *, complex *, complex *, + integer *, complex *, integer *, complex *, complex *, integer *); + extern logical lsame_(char *, char *); + extern /* Subroutine */ int cgeru_(integer *, integer *, complex *, + complex *, integer *, complex *, integer *, complex *, integer *), + ccopy_(integer *, complex *, integer *, complex *, integer *), + caxpy_(integer *, complex *, complex *, integer *, complex *, + integer *), clacgv_(integer *, complex *, integer *); + + +/* -- LAPACK routine (version 3.2) -- */ +/* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */ +/* November 2006 */ + +/* .. Scalar Arguments .. */ +/* .. */ +/* .. Array Arguments .. */ +/* .. */ + +/* Purpose */ +/* ======= */ + +/* This routine is deprecated and has been replaced by routine CUNMRZ. */ + +/* CLATZM applies a Householder matrix generated by CTZRQF to a matrix. */ + +/* Let P = I - tau*u*u', u = ( 1 ), */ +/* ( v ) */ +/* where v is an (m-1) vector if SIDE = 'L', or a (n-1) vector if */ +/* SIDE = 'R'. */ + +/* If SIDE equals 'L', let */ +/* C = [ C1 ] 1 */ +/* [ C2 ] m-1 */ +/* n */ +/* Then C is overwritten by P*C. */ + +/* If SIDE equals 'R', let */ +/* C = [ C1, C2 ] m */ +/* 1 n-1 */ +/* Then C is overwritten by C*P. */ + +/* Arguments */ +/* ========= */ + +/* SIDE (input) CHARACTER*1 */ +/* = 'L': form P * C */ +/* = 'R': form C * P */ + +/* M (input) INTEGER */ +/* The number of rows of the matrix C. */ + +/* N (input) INTEGER */ +/* The number of columns of the matrix C. */ + +/* V (input) COMPLEX array, dimension */ +/* (1 + (M-1)*abs(INCV)) if SIDE = 'L' */ +/* (1 + (N-1)*abs(INCV)) if SIDE = 'R' */ +/* The vector v in the representation of P. V is not used */ +/* if TAU = 0. */ + +/* INCV (input) INTEGER */ +/* The increment between elements of v. INCV <> 0 */ + +/* TAU (input) COMPLEX */ +/* The value tau in the representation of P. */ + +/* C1 (input/output) COMPLEX array, dimension */ +/* (LDC,N) if SIDE = 'L' */ +/* (M,1) if SIDE = 'R' */ +/* On entry, the n-vector C1 if SIDE = 'L', or the m-vector C1 */ +/* if SIDE = 'R'. */ + +/* On exit, the first row of P*C if SIDE = 'L', or the first */ +/* column of C*P if SIDE = 'R'. */ + +/* C2 (input/output) COMPLEX array, dimension */ +/* (LDC, N) if SIDE = 'L' */ +/* (LDC, N-1) if SIDE = 'R' */ +/* On entry, the (m - 1) x n matrix C2 if SIDE = 'L', or the */ +/* m x (n - 1) matrix C2 if SIDE = 'R'. */ + +/* On exit, rows 2:m of P*C if SIDE = 'L', or columns 2:m of C*P */ +/* if SIDE = 'R'. */ + +/* LDC (input) INTEGER */ +/* The leading dimension of the arrays C1 and C2. */ +/* LDC >= max(1,M). */ + +/* WORK (workspace) COMPLEX array, dimension */ +/* (N) if SIDE = 'L' */ +/* (M) if SIDE = 'R' */ + +/* ===================================================================== */ + +/* .. Parameters .. */ +/* .. */ +/* .. External Subroutines .. */ +/* .. */ +/* .. External Functions .. */ +/* .. */ +/* .. Intrinsic Functions .. */ +/* .. */ +/* .. Executable Statements .. */ + + /* Parameter adjustments */ + --v; + c2_dim1 = *ldc; + c2_offset = 1 + c2_dim1; + c2 -= c2_offset; + c1_dim1 = *ldc; + c1_offset = 1 + c1_dim1; + c1 -= c1_offset; + --work; + + /* Function Body */ + if (min(*m,*n) == 0 || tau->r == 0.f && tau->i == 0.f) { + return 0; + } + + if (lsame_(side, "L")) { + +/* w := conjg( C1 + v' * C2 ) */ + + ccopy_(n, &c1[c1_offset], ldc, &work[1], &c__1); + clacgv_(n, &work[1], &c__1); + i__1 = *m - 1; + cgemv_("Conjugate transpose", &i__1, n, &c_b1, &c2[c2_offset], ldc, & + v[1], incv, &c_b1, &work[1], &c__1); + +/* [ C1 ] := [ C1 ] - tau* [ 1 ] * w' */ +/* [ C2 ] [ C2 ] [ v ] */ + + clacgv_(n, &work[1], &c__1); + q__1.r = -tau->r, q__1.i = -tau->i; + caxpy_(n, &q__1, &work[1], &c__1, &c1[c1_offset], ldc); + i__1 = *m - 1; + q__1.r = -tau->r, q__1.i = -tau->i; + cgeru_(&i__1, n, &q__1, &v[1], incv, &work[1], &c__1, &c2[c2_offset], + ldc); + + } else if (lsame_(side, "R")) { + +/* w := C1 + C2 * v */ + + ccopy_(m, &c1[c1_offset], &c__1, &work[1], &c__1); + i__1 = *n - 1; + cgemv_("No transpose", m, &i__1, &c_b1, &c2[c2_offset], ldc, &v[1], + incv, &c_b1, &work[1], &c__1); + +/* [ C1, C2 ] := [ C1, C2 ] - tau* w * [ 1 , v'] */ + + q__1.r = -tau->r, q__1.i = -tau->i; + caxpy_(m, &q__1, &work[1], &c__1, &c1[c1_offset], &c__1); + i__1 = *n - 1; + q__1.r = -tau->r, q__1.i = -tau->i; + cgerc_(m, &i__1, &q__1, &work[1], &c__1, &v[1], incv, &c2[c2_offset], + ldc); + } + + return 0; + +/* End of CLATZM */ + +} /* clatzm_ */ |