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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/slaswp.c | |
parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
download | ydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz |
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/clapack/slaswp.c')
-rw-r--r-- | contrib/libs/clapack/slaswp.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/contrib/libs/clapack/slaswp.c b/contrib/libs/clapack/slaswp.c new file mode 100644 index 0000000000..d89ee039ce --- /dev/null +++ b/contrib/libs/clapack/slaswp.c @@ -0,0 +1,158 @@ +/* slaswp.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 slaswp_(integer *n, real *a, integer *lda, integer *k1, + integer *k2, integer *ipiv, integer *incx) +{ + /* System generated locals */ + integer a_dim1, a_offset, i__1, i__2, i__3, i__4; + + /* Local variables */ + integer i__, j, k, i1, i2, n32, ip, ix, ix0, inc; + real temp; + + +/* -- LAPACK auxiliary routine (version 3.2) -- */ +/* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */ +/* November 2006 */ + +/* .. Scalar Arguments .. */ +/* .. */ +/* .. Array Arguments .. */ +/* .. */ + +/* Purpose */ +/* ======= */ + +/* SLASWP performs a series of row interchanges on the matrix A. */ +/* One row interchange is initiated for each of rows K1 through K2 of A. */ + +/* Arguments */ +/* ========= */ + +/* N (input) INTEGER */ +/* The number of columns of the matrix A. */ + +/* A (input/output) REAL array, dimension (LDA,N) */ +/* On entry, the matrix of column dimension N to which the row */ +/* interchanges will be applied. */ +/* On exit, the permuted matrix. */ + +/* LDA (input) INTEGER */ +/* The leading dimension of the array A. */ + +/* K1 (input) INTEGER */ +/* The first element of IPIV for which a row interchange will */ +/* be done. */ + +/* K2 (input) INTEGER */ +/* The last element of IPIV for which a row interchange will */ +/* be done. */ + +/* IPIV (input) INTEGER array, dimension (K2*abs(INCX)) */ +/* The vector of pivot indices. Only the elements in positions */ +/* K1 through K2 of IPIV are accessed. */ +/* IPIV(K) = L implies rows K and L are to be interchanged. */ + +/* INCX (input) INTEGER */ +/* The increment between successive values of IPIV. If IPIV */ +/* is negative, the pivots are applied in reverse order. */ + +/* Further Details */ +/* =============== */ + +/* Modified by */ +/* R. C. Whaley, Computer Science Dept., Univ. of Tenn., Knoxville, USA */ + +/* ===================================================================== */ + +/* .. Local Scalars .. */ +/* .. */ +/* .. Executable Statements .. */ + +/* Interchange row I with row IPIV(I) for each of rows K1 through K2. */ + + /* Parameter adjustments */ + a_dim1 = *lda; + a_offset = 1 + a_dim1; + a -= a_offset; + --ipiv; + + /* Function Body */ + if (*incx > 0) { + ix0 = *k1; + i1 = *k1; + i2 = *k2; + inc = 1; + } else if (*incx < 0) { + ix0 = (1 - *k2) * *incx + 1; + i1 = *k2; + i2 = *k1; + inc = -1; + } else { + return 0; + } + + n32 = *n / 32 << 5; + if (n32 != 0) { + i__1 = n32; + for (j = 1; j <= i__1; j += 32) { + ix = ix0; + i__2 = i2; + i__3 = inc; + for (i__ = i1; i__3 < 0 ? i__ >= i__2 : i__ <= i__2; i__ += i__3) + { + ip = ipiv[ix]; + if (ip != i__) { + i__4 = j + 31; + for (k = j; k <= i__4; ++k) { + temp = a[i__ + k * a_dim1]; + a[i__ + k * a_dim1] = a[ip + k * a_dim1]; + a[ip + k * a_dim1] = temp; +/* L10: */ + } + } + ix += *incx; +/* L20: */ + } +/* L30: */ + } + } + if (n32 != *n) { + ++n32; + ix = ix0; + i__1 = i2; + i__3 = inc; + for (i__ = i1; i__3 < 0 ? i__ >= i__1 : i__ <= i__1; i__ += i__3) { + ip = ipiv[ix]; + if (ip != i__) { + i__2 = *n; + for (k = n32; k <= i__2; ++k) { + temp = a[i__ + k * a_dim1]; + a[i__ + k * a_dim1] = a[ip + k * a_dim1]; + a[ip + k * a_dim1] = temp; +/* L40: */ + } + } + ix += *incx; +/* L50: */ + } + } + + return 0; + +/* End of SLASWP */ + +} /* slaswp_ */ |