171 integer a_dim1, a_offset, c_dim1, c_offset, i__1, i__2, i__4, i__5;
180 integer i1, i2, i3, ib, ic, jc, nb, mi, ni, nq, nw, iws;
182 extern logical lsame_(
char *,
char *);
185 int sorml2_fla(
char *,
char *,
integer *,
integer *,
integer *,
real *,
integer *,
real *,
real *,
integer *,
real *,
integer *), slarfb_(
char *,
char *,
char *,
char * ,
integer *,
integer *,
integer *,
real *,
integer *,
real *,
integer *,
real *,
integer *,
real *,
integer *), xerbla_(
char *,
integer *);
219 a_offset = 1 + a_dim1;
223 c_offset = 1 + c_dim1;
228 left = lsame_(side,
"L");
229 notran = lsame_(trans,
"N");
230 lquery = *lwork == -1;
242 if (! left && ! lsame_(side,
"R"))
246 else if (! notran && ! lsame_(trans,
"T"))
258 else if (*k < 0 || *k > nq)
262 else if (*lda < max(1,*k))
266 else if (*ldc < max(1,*m))
270 else if (*lwork < max(1,nw) && ! lquery)
280 i__2 = ilaenv_(&c__1,
"SORMLQ", ch__1, m, n, k, &c_n1);
282 lwkopt = max(1,nw) * nb;
283 work[1] = (
real) lwkopt;
288 xerbla_(
"SORMLQ", &i__1);
296 if (*m == 0 || *n == 0 || *k == 0)
303 if (nb > 1 && nb < *k)
308 nb = *lwork / ldwork;
311 i__2 = ilaenv_(&c__2,
"SORMLQ", ch__1, m, n, k, &c_n1);
312 nbmin = max(i__1,i__2);
319 if (nb < nbmin || nb >= *k)
322 sorml2_fla(side, trans, m, n, k, &a[a_offset], lda, &tau[1], &c__[ c_offset], ldc, &work[1], &iinfo);
327 if (left && notran || ! left && ! notran)
335 i1 = (*k - 1) / nb * nb + 1;
351 *(
unsigned char *)transt =
'T';
355 *(
unsigned char *)transt =
'N';
360 i__2 < 0 ? i__ >= i__1 : i__ <= i__1;
370 slarft_(
"Forward",
"Rowwise", &i__4, &ib, &a[i__ + i__ * a_dim1], lda, &tau[i__], t, &c__65);
384 slarfb_(side, transt,
"Forward",
"Rowwise", &mi, &ni, &ib, &a[i__ + i__ * a_dim1], lda, t, &c__65, &c__[ic + jc * c_dim1], ldc, &work[1], &ldwork);
388 work[1] = (
real) lwkopt;
int integer
Definition: FLA_f2c.h:25
int logical
Definition: FLA_f2c.h:36
float real
Definition: FLA_f2c.h:30
int sorml2_fla(char *side, char *trans, integer *m, integer *n, integer *k, real *a, integer *lda, real *tau, real *c__, integer *ldc, real *work, integer *info)
Definition: sorml2.c:148