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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/sopmtr.c | |
parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
download | ydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz |
[] 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 0000000000..f85bfd7ef4 --- /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_ */ |