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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/cunm2l.c | |
parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
download | ydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz |
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/clapack/cunm2l.c')
-rw-r--r-- | contrib/libs/clapack/cunm2l.c | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/contrib/libs/clapack/cunm2l.c b/contrib/libs/clapack/cunm2l.c new file mode 100644 index 0000000000..c553f8f06a --- /dev/null +++ b/contrib/libs/clapack/cunm2l.c @@ -0,0 +1,245 @@ +/* cunm2l.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 integer c__1 = 1; + +/* Subroutine */ int cunm2l_(char *side, char *trans, integer *m, integer *n, + integer *k, complex *a, integer *lda, complex *tau, complex *c__, + integer *ldc, complex *work, integer *info) +{ + /* System generated locals */ + integer a_dim1, a_offset, c_dim1, c_offset, i__1, i__2, i__3; + complex q__1; + + /* Builtin functions */ + void r_cnjg(complex *, complex *); + + /* Local variables */ + integer i__, i1, i2, i3, mi, ni, nq; + complex aii; + logical left; + complex taui; + extern /* Subroutine */ int clarf_(char *, integer *, integer *, complex * +, integer *, complex *, complex *, integer *, complex *); + extern logical lsame_(char *, char *); + extern /* Subroutine */ int xerbla_(char *, integer *); + logical notran; + + +/* -- LAPACK routine (version 3.2) -- */ +/* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */ +/* November 2006 */ + +/* .. Scalar Arguments .. */ +/* .. */ +/* .. Array Arguments .. */ +/* .. */ + +/* Purpose */ +/* ======= */ + +/* CUNM2L overwrites the general complex m-by-n matrix C with */ + +/* Q * C if SIDE = 'L' and TRANS = 'N', or */ + +/* Q'* C if SIDE = 'L' and TRANS = 'C', or */ + +/* C * Q if SIDE = 'R' and TRANS = 'N', or */ + +/* C * Q' if SIDE = 'R' and TRANS = 'C', */ + +/* where Q is a complex unitary matrix defined as the product of k */ +/* elementary reflectors */ + +/* Q = H(k) . . . H(2) H(1) */ + +/* as returned by CGEQLF. Q is of order m if SIDE = 'L' and of order n */ +/* if SIDE = 'R'. */ + +/* Arguments */ +/* ========= */ + +/* SIDE (input) CHARACTER*1 */ +/* = 'L': apply Q or Q' from the Left */ +/* = 'R': apply Q or Q' from the Right */ + +/* TRANS (input) CHARACTER*1 */ +/* = 'N': apply Q (No transpose) */ +/* = 'C': apply Q' (Conjugate transpose) */ + +/* M (input) INTEGER */ +/* The number of rows of the matrix C. M >= 0. */ + +/* N (input) INTEGER */ +/* The number of columns of the matrix C. N >= 0. */ + +/* K (input) INTEGER */ +/* The number of elementary reflectors whose product defines */ +/* the matrix Q. */ +/* If SIDE = 'L', M >= K >= 0; */ +/* if SIDE = 'R', N >= K >= 0. */ + +/* A (input) COMPLEX array, dimension (LDA,K) */ +/* The i-th column must contain the vector which defines the */ +/* elementary reflector H(i), for i = 1,2,...,k, as returned by */ +/* CGEQLF in the last k columns of its array argument A. */ +/* A is modified by the routine but restored on exit. */ + +/* LDA (input) INTEGER */ +/* The leading dimension of the array A. */ +/* If SIDE = 'L', LDA >= max(1,M); */ +/* if SIDE = 'R', LDA >= max(1,N). */ + +/* TAU (input) COMPLEX array, dimension (K) */ +/* TAU(i) must contain the scalar factor of the elementary */ +/* reflector H(i), as returned by CGEQLF. */ + +/* C (input/output) COMPLEX array, dimension (LDC,N) */ +/* On entry, the m-by-n matrix C. */ +/* On exit, C is overwritten by Q*C or Q'*C or C*Q' or C*Q. */ + +/* LDC (input) INTEGER */ +/* The leading dimension of the array C. LDC >= max(1,M). */ + +/* WORK (workspace) COMPLEX array, dimension */ +/* (N) if SIDE = 'L', */ +/* (M) if SIDE = 'R' */ + +/* INFO (output) INTEGER */ +/* = 0: successful exit */ +/* < 0: if INFO = -i, the i-th argument had an illegal value */ + +/* ===================================================================== */ + +/* .. Parameters .. */ +/* .. */ +/* .. Local Scalars .. */ +/* .. */ +/* .. External Functions .. */ +/* .. */ +/* .. External Subroutines .. */ +/* .. */ +/* .. Intrinsic Functions .. */ +/* .. */ +/* .. Executable Statements .. */ + +/* Test the input arguments */ + + /* Parameter adjustments */ + a_dim1 = *lda; + a_offset = 1 + a_dim1; + a -= a_offset; + --tau; + c_dim1 = *ldc; + c_offset = 1 + c_dim1; + c__ -= c_offset; + --work; + + /* Function Body */ + *info = 0; + left = lsame_(side, "L"); + notran = lsame_(trans, "N"); + +/* NQ is the order of Q */ + + if (left) { + nq = *m; + } else { + nq = *n; + } + if (! left && ! lsame_(side, "R")) { + *info = -1; + } else if (! notran && ! lsame_(trans, "C")) { + *info = -2; + } else if (*m < 0) { + *info = -3; + } else if (*n < 0) { + *info = -4; + } else if (*k < 0 || *k > nq) { + *info = -5; + } else if (*lda < max(1,nq)) { + *info = -7; + } else if (*ldc < max(1,*m)) { + *info = -10; + } + if (*info != 0) { + i__1 = -(*info); + xerbla_("CUNM2L", &i__1); + return 0; + } + +/* Quick return if possible */ + + if (*m == 0 || *n == 0 || *k == 0) { + return 0; + } + + if (left && notran || ! left && ! notran) { + i1 = 1; + i2 = *k; + i3 = 1; + } else { + i1 = *k; + i2 = 1; + i3 = -1; + } + + if (left) { + ni = *n; + } else { + mi = *m; + } + + i__1 = i2; + i__2 = i3; + for (i__ = i1; i__2 < 0 ? i__ >= i__1 : i__ <= i__1; i__ += i__2) { + if (left) { + +/* H(i) or H(i)' is applied to C(1:m-k+i,1:n) */ + + mi = *m - *k + i__; + } else { + +/* H(i) or H(i)' is applied to C(1:m,1:n-k+i) */ + + ni = *n - *k + i__; + } + +/* Apply H(i) or H(i)' */ + + if (notran) { + i__3 = i__; + taui.r = tau[i__3].r, taui.i = tau[i__3].i; + } else { + r_cnjg(&q__1, &tau[i__]); + taui.r = q__1.r, taui.i = q__1.i; + } + i__3 = nq - *k + i__ + i__ * a_dim1; + aii.r = a[i__3].r, aii.i = a[i__3].i; + i__3 = nq - *k + i__ + i__ * a_dim1; + a[i__3].r = 1.f, a[i__3].i = 0.f; + clarf_(side, &mi, &ni, &a[i__ * a_dim1 + 1], &c__1, &taui, &c__[ + c_offset], ldc, &work[1]); + i__3 = nq - *k + i__ + i__ * a_dim1; + a[i__3].r = aii.r, a[i__3].i = aii.i; +/* L10: */ + } + return 0; + +/* End of CUNM2L */ + +} /* cunm2l_ */ |