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Function zlauum_

numpy/linalg/lapack_lite/f2c_z_lapack.c:23147–23330  ·  view source on GitHub ↗

Subroutine */

Source from the content-addressed store, hash-verified

23145} /* zlauu2_ */
23146
23147/* Subroutine */ int zlauum_(char *uplo, integer *n, doublecomplex *a,
23148 integer *lda, integer *info)
23149{
23150 /* System generated locals */
23151 integer a_dim1, a_offset, i__1, i__2, i__3, i__4;
23152
23153 /* Local variables */
23154 static integer i__, ib, nb;
23155 extern logical lsame_(char *, char *);
23156 extern /* Subroutine */ int zgemm_(char *, char *, integer *, integer *,
23157 integer *, doublecomplex *, doublecomplex *, integer *,
23158 doublecomplex *, integer *, doublecomplex *, doublecomplex *,
23159 integer *), zherk_(char *, char *, integer *,
23160 integer *, doublereal *, doublecomplex *, integer *, doublereal *,
23161 doublecomplex *, integer *);
23162 static logical upper;
23163 extern /* Subroutine */ int ztrmm_(char *, char *, char *, char *,
23164 integer *, integer *, doublecomplex *, doublecomplex *, integer *,
23165 doublecomplex *, integer *),
23166 zlauu2_(char *, integer *, doublecomplex *, integer *, integer *), xerbla_(char *, integer *);
23167 extern integer ilaenv_(integer *, char *, char *, integer *, integer *,
23168 integer *, integer *, ftnlen, ftnlen);
23169
23170
23171/*
23172 -- LAPACK auxiliary routine (version 3.2) --
23173 -- LAPACK is a software package provided by Univ. of Tennessee, --
23174 -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
23175 November 2006
23176
23177
23178 Purpose
23179 =======
23180
23181 ZLAUUM computes the product U * U' or L' * L, where the triangular
23182 factor U or L is stored in the upper or lower triangular part of
23183 the array A.
23184
23185 If UPLO = 'U' or 'u' then the upper triangle of the result is stored,
23186 overwriting the factor U in A.
23187 If UPLO = 'L' or 'l' then the lower triangle of the result is stored,
23188 overwriting the factor L in A.
23189
23190 This is the blocked form of the algorithm, calling Level 3 BLAS.
23191
23192 Arguments
23193 =========
23194
23195 UPLO (input) CHARACTER*1
23196 Specifies whether the triangular factor stored in the array A
23197 is upper or lower triangular:
23198 = 'U': Upper triangular
23199 = 'L': Lower triangular
23200
23201 N (input) INTEGER
23202 The order of the triangular factor U or L. N >= 0.
23203
23204 A (input/output) COMPLEX*16 array, dimension (LDA,N)

Callers 1

zpotri_Function · 0.85

Calls 8

lsame_Function · 0.85
ilaenv_Function · 0.85
zlauu2_Function · 0.85
ztrmm_Function · 0.85
zgemm_Function · 0.85
zherk_Function · 0.85
maxFunction · 0.50
minFunction · 0.50

Tested by

no test coverage detected