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35 #include "gmx_lapack.h"
36 #include "lapack_limits.h"
39 F77_FUNC(sormql,SORMQL)(const char *side, const char *trans, int *m, int *n,
40 int *k, float *a, int *lda, float *tau, float *
41 c__, int *ldc, float *work, int *lwork, int *info)
43 int a_dim1, a_offset, c_dim1, c_offset, i__1, i__2, i__4, i__5;
48 int i1, i2, i3, ib, nb, mi, ni, nq, nw, iws;
57 a_offset = 1 + a_dim1;
61 c_offset = 1 + c_dim1;
66 left = (*side=='L' || *side=='l');
67 notran = (*trans=='N' || *trans=='n');
68 lquery = *lwork == -1;
78 nb = DORMQL_BLOCKSIZE;
80 work[1] = (float) lwkopt;
89 if (*m == 0 || *n == 0 || *k == 0) {
96 if (nb > 1 && nb < *k) {
100 nbmin = DORMQL_MINBLOCKSIZE;
106 if (nb < nbmin || nb >= *k) {
108 F77_FUNC(sorm2l,SORM2L)(side, trans, m, n, k, &a[a_offset], lda, &tau[1], &c__[
109 c_offset], ldc, &work[1], &iinfo);
112 if ((left && notran) || (! left && ! notran)) {
117 i1 = (*k - 1) / nb * nb + 1;
130 for (i__ = i1; i__2 < 0 ? i__ >= i__1 : i__ <= i__1; i__ += i__2) {
131 i__4 = nb, i__5 = *k - i__ + 1;
132 ib = (i__4<i__5) ? i__4 : i__5;
134 i__4 = nq - *k + i__ + ib - 1;
135 F77_FUNC(slarft,SLARFT)("Backward", "Columnwise", &i__4, &ib, &a[i__ * a_dim1 + 1]
136 , lda, &tau[i__], t, &c__65);
139 mi = *m - *k + i__ + ib - 1;
142 ni = *n - *k + i__ + ib - 1;
145 F77_FUNC(slarfb,SLARFB)(side, trans, "Backward", "Columnwise", &mi, &ni, &ib, &a[
146 i__ * a_dim1 + 1], lda, t, &c__65, &c__[c_offset], ldc, &
150 work[1] = (float) lwkopt;