diff options
| author | shmel1k <[email protected]> | 2022-09-02 12:44:59 +0300 | 
|---|---|---|
| committer | shmel1k <[email protected]> | 2022-09-02 12:44:59 +0300 | 
| commit | 90d450f74722da7859d6f510a869f6c6908fd12f (patch) | |
| tree | 538c718dedc76cdfe37ad6d01ff250dd930d9278 /contrib/libs/clapack/sopmtr.c | |
| parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/clapack/sopmtr.c')
| -rw-r--r-- | contrib/libs/clapack/sopmtr.c | 295 | 
1 files changed, 295 insertions, 0 deletions
diff --git a/contrib/libs/clapack/sopmtr.c b/contrib/libs/clapack/sopmtr.c new file mode 100644 index 00000000000..f85bfd7ef44 --- /dev/null +++ b/contrib/libs/clapack/sopmtr.c @@ -0,0 +1,295 @@ +/* sopmtr.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 sopmtr_(char *side, char *uplo, char *trans, integer *m,  +	integer *n, real *ap, real *tau, real *c__, integer *ldc, real *work,  +	integer *info) +{ +    /* System generated locals */ +    integer c_dim1, c_offset, i__1, i__2; + +    /* Local variables */ +    integer i__, i1, i2, i3, ic, jc, ii, mi, ni, nq; +    real aii; +    logical left; +    extern logical lsame_(char *, char *); +    extern /* Subroutine */ int slarf_(char *, integer *, integer *, real *,  +	    integer *, real *, real *, integer *, real *); +    logical upper; +    extern /* Subroutine */ int xerbla_(char *, integer *); +    logical notran, forwrd; + + +/*  -- LAPACK routine (version 3.2) -- */ +/*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */ +/*     November 2006 */ + +/*     .. Scalar Arguments .. */ +/*     .. */ +/*     .. Array Arguments .. */ +/*     .. */ + +/*  Purpose */ +/*  ======= */ + +/*  SOPMTR overwrites the general real M-by-N matrix C with */ + +/*                  SIDE = 'L'     SIDE = 'R' */ +/*  TRANS = 'N':      Q * C          C * Q */ +/*  TRANS = 'T':      Q**T * C       C * Q**T */ + +/*  where Q is a real orthogonal matrix of order nq, with nq = m if */ +/*  SIDE = 'L' and nq = n if SIDE = 'R'. Q is defined as the product of */ +/*  nq-1 elementary reflectors, as returned by SSPTRD using packed */ +/*  storage: */ + +/*  if UPLO = 'U', Q = H(nq-1) . . . H(2) H(1); */ + +/*  if UPLO = 'L', Q = H(1) H(2) . . . H(nq-1). */ + +/*  Arguments */ +/*  ========= */ + +/*  SIDE    (input) CHARACTER*1 */ +/*          = 'L': apply Q or Q**T from the Left; */ +/*          = 'R': apply Q or Q**T from the Right. */ + +/*  UPLO    (input) CHARACTER*1 */ +/*          = 'U': Upper triangular packed storage used in previous */ +/*                 call to SSPTRD; */ +/*          = 'L': Lower triangular packed storage used in previous */ +/*                 call to SSPTRD. */ + +/*  TRANS   (input) CHARACTER*1 */ +/*          = 'N':  No transpose, apply Q; */ +/*          = 'T':  Transpose, apply Q**T. */ + +/*  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. */ + +/*  AP      (input) REAL array, dimension */ +/*                               (M*(M+1)/2) if SIDE = 'L' */ +/*                               (N*(N+1)/2) if SIDE = 'R' */ +/*          The vectors which define the elementary reflectors, as */ +/*          returned by SSPTRD.  AP is modified by the routine but */ +/*          restored on exit. */ + +/*  TAU     (input) REAL array, dimension (M-1) if SIDE = 'L' */ +/*                                     or (N-1) if SIDE = 'R' */ +/*          TAU(i) must contain the scalar factor of the elementary */ +/*          reflector H(i), as returned by SSPTRD. */ + +/*  C       (input/output) REAL array, dimension (LDC,N) */ +/*          On entry, the M-by-N matrix C. */ +/*          On exit, C is overwritten by Q*C or Q**T*C or C*Q**T or C*Q. */ + +/*  LDC     (input) INTEGER */ +/*          The leading dimension of the array C. LDC >= max(1,M). */ + +/*  WORK    (workspace) REAL 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 */ +    --ap; +    --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"); +    upper = lsame_(uplo, "U"); + +/*     NQ is the order of Q */ + +    if (left) { +	nq = *m; +    } else { +	nq = *n; +    } +    if (! left && ! lsame_(side, "R")) { +	*info = -1; +    } else if (! upper && ! lsame_(uplo, "L")) { +	*info = -2; +    } else if (! notran && ! lsame_(trans, "T")) { +	*info = -3; +    } else if (*m < 0) { +	*info = -4; +    } else if (*n < 0) { +	*info = -5; +    } else if (*ldc < max(1,*m)) { +	*info = -9; +    } +    if (*info != 0) { +	i__1 = -(*info); +	xerbla_("SOPMTR", &i__1); +	return 0; +    } + +/*     Quick return if possible */ + +    if (*m == 0 || *n == 0) { +	return 0; +    } + +    if (upper) { + +/*        Q was determined by a call to SSPTRD with UPLO = 'U' */ + +	forwrd = left && notran || ! left && ! notran; + +	if (forwrd) { +	    i1 = 1; +	    i2 = nq - 1; +	    i3 = 1; +	    ii = 2; +	} else { +	    i1 = nq - 1; +	    i2 = 1; +	    i3 = -1; +	    ii = nq * (nq + 1) / 2 - 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) is applied to C(1:i,1:n) */ + +		mi = i__; +	    } else { + +/*              H(i) is applied to C(1:m,1:i) */ + +		ni = i__; +	    } + +/*           Apply H(i) */ + +	    aii = ap[ii]; +	    ap[ii] = 1.f; +	    slarf_(side, &mi, &ni, &ap[ii - i__ + 1], &c__1, &tau[i__], &c__[ +		    c_offset], ldc, &work[1]); +	    ap[ii] = aii; + +	    if (forwrd) { +		ii = ii + i__ + 2; +	    } else { +		ii = ii - i__ - 1; +	    } +/* L10: */ +	} +    } else { + +/*        Q was determined by a call to SSPTRD with UPLO = 'L'. */ + +	forwrd = left && ! notran || ! left && notran; + +	if (forwrd) { +	    i1 = 1; +	    i2 = nq - 1; +	    i3 = 1; +	    ii = 2; +	} else { +	    i1 = nq - 1; +	    i2 = 1; +	    i3 = -1; +	    ii = nq * (nq + 1) / 2 - 1; +	} + +	if (left) { +	    ni = *n; +	    jc = 1; +	} else { +	    mi = *m; +	    ic = 1; +	} + +	i__2 = i2; +	i__1 = i3; +	for (i__ = i1; i__1 < 0 ? i__ >= i__2 : i__ <= i__2; i__ += i__1) { +	    aii = ap[ii]; +	    ap[ii] = 1.f; +	    if (left) { + +/*              H(i) is applied to C(i+1:m,1:n) */ + +		mi = *m - i__; +		ic = i__ + 1; +	    } else { + +/*              H(i) is applied to C(1:m,i+1:n) */ + +		ni = *n - i__; +		jc = i__ + 1; +	    } + +/*           Apply H(i) */ + +	    slarf_(side, &mi, &ni, &ap[ii], &c__1, &tau[i__], &c__[ic + jc *  +		    c_dim1], ldc, &work[1]); +	    ap[ii] = aii; + +	    if (forwrd) { +		ii = ii + nq - i__ + 1; +	    } else { +		ii = ii - nq + i__ - 2; +	    } +/* L20: */ +	} +    } +    return 0; + +/*     End of SOPMTR */ + +} /* sopmtr_ */  | 
