aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/clapack/slaswp.c
diff options
context:
space:
mode:
authorshmel1k <shmel1k@ydb.tech>2022-09-02 12:44:59 +0300
committershmel1k <shmel1k@ydb.tech>2022-09-02 12:44:59 +0300
commit90d450f74722da7859d6f510a869f6c6908fd12f (patch)
tree538c718dedc76cdfe37ad6d01ff250dd930d9278 /contrib/libs/clapack/slaswp.c
parent01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff)
downloadydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/clapack/slaswp.c')
-rw-r--r--contrib/libs/clapack/slaswp.c158
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_ */