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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/ilaslr.c | |
parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
download | ydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz |
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/clapack/ilaslr.c')
-rw-r--r-- | contrib/libs/clapack/ilaslr.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/contrib/libs/clapack/ilaslr.c b/contrib/libs/clapack/ilaslr.c new file mode 100644 index 0000000000..0aaa4a0fbe --- /dev/null +++ b/contrib/libs/clapack/ilaslr.c @@ -0,0 +1,90 @@ +/* ilaslr.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" + +integer ilaslr_(integer *m, integer *n, real *a, integer *lda) +{ + /* System generated locals */ + integer a_dim1, a_offset, ret_val, i__1; + + /* Local variables */ + integer i__, j; + + +/* -- LAPACK auxiliary routine (version 3.2.1) -- */ + +/* -- April 2009 -- */ + +/* -- LAPACK is a software package provided by Univ. of Tennessee, -- */ +/* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- */ + +/* .. Scalar Arguments .. */ +/* .. */ +/* .. Array Arguments .. */ +/* .. */ + +/* Purpose */ +/* ======= */ + +/* ILASLR scans A for its last non-zero row. */ + +/* Arguments */ +/* ========= */ + +/* M (input) INTEGER */ +/* The number of rows of the matrix A. */ + +/* N (input) INTEGER */ +/* The number of columns of the matrix A. */ + +/* A (input) REAL array, dimension (LDA,N) */ +/* The m by n matrix A. */ + +/* LDA (input) INTEGER */ +/* The leading dimension of the array A. LDA >= max(1,M). */ + +/* ===================================================================== */ + +/* .. Parameters .. */ +/* .. */ +/* .. Local Scalars .. */ +/* .. */ +/* .. Executable Statements .. */ + +/* Quick test for the common case where one corner is non-zero. */ + /* Parameter adjustments */ + a_dim1 = *lda; + a_offset = 1 + a_dim1; + a -= a_offset; + + /* Function Body */ + if (*m == 0) { + ret_val = *m; + } else if (a[*m + a_dim1] != 0.f || a[*m + *n * a_dim1] != 0.f) { + ret_val = *m; + } else { +/* Scan up each column tracking the last zero row seen. */ + ret_val = 0; + i__1 = *n; + for (j = 1; j <= i__1; ++j) { + for (i__ = *m; i__ >= 1; --i__) { + if (a[i__ + j * a_dim1] != 0.f) { + break; + } + } + ret_val = max(ret_val,i__); + } + } + return ret_val; +} /* ilaslr_ */ |