467 lines
22 KiB
C++
467 lines
22 KiB
C++
#ifdef __cplusplus
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extern "C" {
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#endif
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#include "lmp_f2c.h"
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static integer c__6 = 6;
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static integer c_n1 = -1;
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static integer c__0 = 0;
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static doublereal c_b46 = 0.;
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static integer c__1 = 1;
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static doublereal c_b79 = 1.;
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int dgelss_(integer *m, integer *n, integer *nrhs, doublereal *a, integer *lda, doublereal *b,
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integer *ldb, doublereal *s, doublereal *rcond, integer *rank, doublereal *work,
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integer *lwork, integer *info)
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{
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integer a_dim1, a_offset, b_dim1, b_offset, i__1, i__2, i__3, i__4;
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doublereal d__1;
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integer i__, bl, ie, il, mm;
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doublereal dum[1], eps, thr, anrm, bnrm;
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integer itau, lwork_dgebrd__, lwork_dgelqf__, lwork_dgeqrf__, lwork_dorgbr__, lwork_dormbr__,
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lwork_dormlq__, lwork_dormqr__;
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extern int dgemm_(char *, char *, integer *, integer *, integer *, doublereal *, doublereal *,
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integer *, doublereal *, integer *, doublereal *, doublereal *, integer *,
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ftnlen, ftnlen);
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integer iascl, ibscl;
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extern int dgemv_(char *, integer *, integer *, doublereal *, doublereal *, integer *,
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doublereal *, integer *, doublereal *, doublereal *, integer *, ftnlen),
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drscl_(integer *, doublereal *, doublereal *, integer *);
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integer chunk;
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doublereal sfmin;
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integer minmn;
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extern int dcopy_(integer *, doublereal *, integer *, doublereal *, integer *);
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integer maxmn, itaup, itauq, mnthr, iwork;
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extern int dlabad_(doublereal *, doublereal *),
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dgebrd_(integer *, integer *, doublereal *, integer *, doublereal *, doublereal *,
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doublereal *, doublereal *, doublereal *, integer *, integer *);
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extern doublereal dlamch_(char *, ftnlen),
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dlange_(char *, integer *, integer *, doublereal *, integer *, doublereal *, ftnlen);
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integer bdspac;
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extern int dgelqf_(integer *, integer *, doublereal *, integer *, doublereal *, doublereal *,
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integer *, integer *),
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dlascl_(char *, integer *, integer *, doublereal *, doublereal *, integer *, integer *,
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doublereal *, integer *, integer *, ftnlen),
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dgeqrf_(integer *, integer *, doublereal *, integer *, doublereal *, doublereal *,
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integer *, integer *),
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dlacpy_(char *, integer *, integer *, doublereal *, integer *, doublereal *, integer *,
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ftnlen),
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dlaset_(char *, integer *, integer *, doublereal *, doublereal *, doublereal *, integer *,
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ftnlen),
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xerbla_(char *, integer *, ftnlen),
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dbdsqr_(char *, integer *, integer *, integer *, integer *, doublereal *, doublereal *,
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doublereal *, integer *, doublereal *, integer *, doublereal *, integer *,
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doublereal *, integer *, ftnlen),
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dorgbr_(char *, integer *, integer *, integer *, doublereal *, integer *, doublereal *,
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doublereal *, integer *, integer *, ftnlen);
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doublereal bignum;
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extern integer ilaenv_(integer *, char *, char *, integer *, integer *, integer *, integer *,
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ftnlen, ftnlen);
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extern int dormbr_(char *, char *, char *, integer *, integer *, integer *, doublereal *,
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integer *, doublereal *, doublereal *, integer *, doublereal *, integer *,
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integer *, ftnlen, ftnlen, ftnlen),
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dormlq_(char *, char *, integer *, integer *, integer *, doublereal *, integer *,
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doublereal *, doublereal *, integer *, doublereal *, integer *, integer *, ftnlen,
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ftnlen);
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integer ldwork;
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extern int dormqr_(char *, char *, integer *, integer *, integer *, doublereal *, integer *,
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doublereal *, doublereal *, integer *, doublereal *, integer *, integer *,
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ftnlen, ftnlen);
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integer minwrk, maxwrk;
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doublereal smlnum;
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logical lquery;
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a_dim1 = *lda;
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a_offset = 1 + a_dim1;
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a -= a_offset;
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b_dim1 = *ldb;
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b_offset = 1 + b_dim1;
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b -= b_offset;
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--s;
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--work;
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*info = 0;
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minmn = min(*m, *n);
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maxmn = max(*m, *n);
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lquery = *lwork == -1;
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if (*m < 0) {
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*info = -1;
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} else if (*n < 0) {
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*info = -2;
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} else if (*nrhs < 0) {
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*info = -3;
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} else if (*lda < max(1, *m)) {
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*info = -5;
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} else if (*ldb < max(1, maxmn)) {
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*info = -7;
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}
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if (*info == 0) {
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minwrk = 1;
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maxwrk = 1;
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if (minmn > 0) {
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mm = *m;
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mnthr = ilaenv_(&c__6, (char *)"DGELSS", (char *)" ", m, n, nrhs, &c_n1, (ftnlen)6, (ftnlen)1);
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if (*m >= *n && *m >= mnthr) {
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dgeqrf_(m, n, &a[a_offset], lda, dum, dum, &c_n1, info);
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lwork_dgeqrf__ = (integer)dum[0];
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dormqr_((char *)"L", (char *)"T", m, nrhs, n, &a[a_offset], lda, dum, &b[b_offset], ldb, dum, &c_n1,
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info, (ftnlen)1, (ftnlen)1);
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lwork_dormqr__ = (integer)dum[0];
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mm = *n;
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i__1 = maxwrk, i__2 = *n + lwork_dgeqrf__;
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maxwrk = max(i__1, i__2);
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i__1 = maxwrk, i__2 = *n + lwork_dormqr__;
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maxwrk = max(i__1, i__2);
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}
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if (*m >= *n) {
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i__1 = 1, i__2 = *n * 5;
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bdspac = max(i__1, i__2);
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dgebrd_(&mm, n, &a[a_offset], lda, &s[1], dum, dum, dum, dum, &c_n1, info);
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lwork_dgebrd__ = (integer)dum[0];
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dormbr_((char *)"Q", (char *)"L", (char *)"T", &mm, nrhs, n, &a[a_offset], lda, dum, &b[b_offset], ldb, dum,
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&c_n1, info, (ftnlen)1, (ftnlen)1, (ftnlen)1);
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lwork_dormbr__ = (integer)dum[0];
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dorgbr_((char *)"P", n, n, n, &a[a_offset], lda, dum, dum, &c_n1, info, (ftnlen)1);
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lwork_dorgbr__ = (integer)dum[0];
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i__1 = maxwrk, i__2 = *n * 3 + lwork_dgebrd__;
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maxwrk = max(i__1, i__2);
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i__1 = maxwrk, i__2 = *n * 3 + lwork_dormbr__;
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maxwrk = max(i__1, i__2);
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i__1 = maxwrk, i__2 = *n * 3 + lwork_dorgbr__;
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maxwrk = max(i__1, i__2);
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maxwrk = max(maxwrk, bdspac);
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i__1 = maxwrk, i__2 = *n * *nrhs;
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maxwrk = max(i__1, i__2);
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i__1 = *n * 3 + mm, i__2 = *n * 3 + *nrhs, i__1 = max(i__1, i__2);
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minwrk = max(i__1, bdspac);
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maxwrk = max(minwrk, maxwrk);
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}
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if (*n > *m) {
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i__1 = 1, i__2 = *m * 5;
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bdspac = max(i__1, i__2);
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i__1 = *m * 3 + *nrhs, i__2 = *m * 3 + *n, i__1 = max(i__1, i__2);
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minwrk = max(i__1, bdspac);
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if (*n >= mnthr) {
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dgelqf_(m, n, &a[a_offset], lda, dum, dum, &c_n1, info);
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lwork_dgelqf__ = (integer)dum[0];
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dgebrd_(m, m, &a[a_offset], lda, &s[1], dum, dum, dum, dum, &c_n1, info);
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lwork_dgebrd__ = (integer)dum[0];
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dormbr_((char *)"Q", (char *)"L", (char *)"T", m, nrhs, n, &a[a_offset], lda, dum, &b[b_offset], ldb,
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dum, &c_n1, info, (ftnlen)1, (ftnlen)1, (ftnlen)1);
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lwork_dormbr__ = (integer)dum[0];
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dorgbr_((char *)"P", m, m, m, &a[a_offset], lda, dum, dum, &c_n1, info, (ftnlen)1);
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lwork_dorgbr__ = (integer)dum[0];
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dormlq_((char *)"L", (char *)"T", n, nrhs, m, &a[a_offset], lda, dum, &b[b_offset], ldb, dum,
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&c_n1, info, (ftnlen)1, (ftnlen)1);
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lwork_dormlq__ = (integer)dum[0];
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maxwrk = *m + lwork_dgelqf__;
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i__1 = maxwrk, i__2 = *m * *m + (*m << 2) + lwork_dgebrd__;
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maxwrk = max(i__1, i__2);
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i__1 = maxwrk, i__2 = *m * *m + (*m << 2) + lwork_dormbr__;
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maxwrk = max(i__1, i__2);
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i__1 = maxwrk, i__2 = *m * *m + (*m << 2) + lwork_dorgbr__;
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maxwrk = max(i__1, i__2);
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i__1 = maxwrk, i__2 = *m * *m + *m + bdspac;
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maxwrk = max(i__1, i__2);
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if (*nrhs > 1) {
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i__1 = maxwrk, i__2 = *m * *m + *m + *m * *nrhs;
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maxwrk = max(i__1, i__2);
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} else {
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i__1 = maxwrk, i__2 = *m * *m + (*m << 1);
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maxwrk = max(i__1, i__2);
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}
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i__1 = maxwrk, i__2 = *m + lwork_dormlq__;
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maxwrk = max(i__1, i__2);
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} else {
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dgebrd_(m, n, &a[a_offset], lda, &s[1], dum, dum, dum, dum, &c_n1, info);
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lwork_dgebrd__ = (integer)dum[0];
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dormbr_((char *)"Q", (char *)"L", (char *)"T", m, nrhs, m, &a[a_offset], lda, dum, &b[b_offset], ldb,
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dum, &c_n1, info, (ftnlen)1, (ftnlen)1, (ftnlen)1);
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lwork_dormbr__ = (integer)dum[0];
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dorgbr_((char *)"P", m, n, m, &a[a_offset], lda, dum, dum, &c_n1, info, (ftnlen)1);
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lwork_dorgbr__ = (integer)dum[0];
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maxwrk = *m * 3 + lwork_dgebrd__;
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i__1 = maxwrk, i__2 = *m * 3 + lwork_dormbr__;
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maxwrk = max(i__1, i__2);
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i__1 = maxwrk, i__2 = *m * 3 + lwork_dorgbr__;
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maxwrk = max(i__1, i__2);
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maxwrk = max(maxwrk, bdspac);
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i__1 = maxwrk, i__2 = *n * *nrhs;
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maxwrk = max(i__1, i__2);
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}
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}
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maxwrk = max(minwrk, maxwrk);
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}
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work[1] = (doublereal)maxwrk;
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if (*lwork < minwrk && !lquery) {
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*info = -12;
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}
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}
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if (*info != 0) {
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i__1 = -(*info);
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xerbla_((char *)"DGELSS", &i__1, (ftnlen)6);
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return 0;
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} else if (lquery) {
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return 0;
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}
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if (*m == 0 || *n == 0) {
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*rank = 0;
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return 0;
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}
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eps = dlamch_((char *)"P", (ftnlen)1);
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sfmin = dlamch_((char *)"S", (ftnlen)1);
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smlnum = sfmin / eps;
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bignum = 1. / smlnum;
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dlabad_(&smlnum, &bignum);
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anrm = dlange_((char *)"M", m, n, &a[a_offset], lda, &work[1], (ftnlen)1);
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iascl = 0;
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if (anrm > 0. && anrm < smlnum) {
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dlascl_((char *)"G", &c__0, &c__0, &anrm, &smlnum, m, n, &a[a_offset], lda, info, (ftnlen)1);
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iascl = 1;
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} else if (anrm > bignum) {
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dlascl_((char *)"G", &c__0, &c__0, &anrm, &bignum, m, n, &a[a_offset], lda, info, (ftnlen)1);
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iascl = 2;
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} else if (anrm == 0.) {
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i__1 = max(*m, *n);
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dlaset_((char *)"F", &i__1, nrhs, &c_b46, &c_b46, &b[b_offset], ldb, (ftnlen)1);
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dlaset_((char *)"F", &minmn, &c__1, &c_b46, &c_b46, &s[1], &minmn, (ftnlen)1);
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*rank = 0;
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goto L70;
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}
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bnrm = dlange_((char *)"M", m, nrhs, &b[b_offset], ldb, &work[1], (ftnlen)1);
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ibscl = 0;
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if (bnrm > 0. && bnrm < smlnum) {
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dlascl_((char *)"G", &c__0, &c__0, &bnrm, &smlnum, m, nrhs, &b[b_offset], ldb, info, (ftnlen)1);
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ibscl = 1;
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} else if (bnrm > bignum) {
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dlascl_((char *)"G", &c__0, &c__0, &bnrm, &bignum, m, nrhs, &b[b_offset], ldb, info, (ftnlen)1);
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ibscl = 2;
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}
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if (*m >= *n) {
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mm = *m;
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if (*m >= mnthr) {
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mm = *n;
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itau = 1;
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iwork = itau + *n;
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i__1 = *lwork - iwork + 1;
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dgeqrf_(m, n, &a[a_offset], lda, &work[itau], &work[iwork], &i__1, info);
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i__1 = *lwork - iwork + 1;
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dormqr_((char *)"L", (char *)"T", m, nrhs, n, &a[a_offset], lda, &work[itau], &b[b_offset], ldb,
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&work[iwork], &i__1, info, (ftnlen)1, (ftnlen)1);
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if (*n > 1) {
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i__1 = *n - 1;
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i__2 = *n - 1;
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dlaset_((char *)"L", &i__1, &i__2, &c_b46, &c_b46, &a[a_dim1 + 2], lda, (ftnlen)1);
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}
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}
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ie = 1;
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itauq = ie + *n;
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itaup = itauq + *n;
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iwork = itaup + *n;
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i__1 = *lwork - iwork + 1;
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dgebrd_(&mm, n, &a[a_offset], lda, &s[1], &work[ie], &work[itauq], &work[itaup],
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&work[iwork], &i__1, info);
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i__1 = *lwork - iwork + 1;
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dormbr_((char *)"Q", (char *)"L", (char *)"T", &mm, nrhs, n, &a[a_offset], lda, &work[itauq], &b[b_offset], ldb,
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&work[iwork], &i__1, info, (ftnlen)1, (ftnlen)1, (ftnlen)1);
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i__1 = *lwork - iwork + 1;
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dorgbr_((char *)"P", n, n, n, &a[a_offset], lda, &work[itaup], &work[iwork], &i__1, info,
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(ftnlen)1);
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iwork = ie + *n;
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dbdsqr_((char *)"U", n, n, &c__0, nrhs, &s[1], &work[ie], &a[a_offset], lda, dum, &c__1,
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&b[b_offset], ldb, &work[iwork], info, (ftnlen)1);
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if (*info != 0) {
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goto L70;
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}
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d__1 = *rcond * s[1];
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thr = max(d__1, sfmin);
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if (*rcond < 0.) {
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d__1 = eps * s[1];
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thr = max(d__1, sfmin);
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}
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*rank = 0;
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i__1 = *n;
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for (i__ = 1; i__ <= i__1; ++i__) {
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if (s[i__] > thr) {
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drscl_(nrhs, &s[i__], &b[i__ + b_dim1], ldb);
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++(*rank);
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} else {
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dlaset_((char *)"F", &c__1, nrhs, &c_b46, &c_b46, &b[i__ + b_dim1], ldb, (ftnlen)1);
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}
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}
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if (*lwork >= *ldb * *nrhs && *nrhs > 1) {
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dgemm_((char *)"T", (char *)"N", n, nrhs, n, &c_b79, &a[a_offset], lda, &b[b_offset], ldb, &c_b46,
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&work[1], ldb, (ftnlen)1, (ftnlen)1);
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dlacpy_((char *)"G", n, nrhs, &work[1], ldb, &b[b_offset], ldb, (ftnlen)1);
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} else if (*nrhs > 1) {
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chunk = *lwork / *n;
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i__1 = *nrhs;
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i__2 = chunk;
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for (i__ = 1; i__2 < 0 ? i__ >= i__1 : i__ <= i__1; i__ += i__2) {
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i__3 = *nrhs - i__ + 1;
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bl = min(i__3, chunk);
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dgemm_((char *)"T", (char *)"N", n, &bl, n, &c_b79, &a[a_offset], lda, &b[i__ * b_dim1 + 1], ldb,
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&c_b46, &work[1], n, (ftnlen)1, (ftnlen)1);
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dlacpy_((char *)"G", n, &bl, &work[1], n, &b[i__ * b_dim1 + 1], ldb, (ftnlen)1);
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}
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} else {
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dgemv_((char *)"T", n, n, &c_b79, &a[a_offset], lda, &b[b_offset], &c__1, &c_b46, &work[1],
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&c__1, (ftnlen)1);
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dcopy_(n, &work[1], &c__1, &b[b_offset], &c__1);
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}
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} else {
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i__2 = *m, i__1 = (*m << 1) - 4, i__2 = max(i__2, i__1), i__2 = max(i__2, *nrhs),
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i__1 = *n - *m * 3;
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if (*n >= mnthr && *lwork >= (*m << 2) + *m * *m + max(i__2, i__1)) {
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ldwork = *m;
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i__3 = *m, i__4 = (*m << 1) - 4, i__3 = max(i__3, i__4), i__3 = max(i__3, *nrhs),
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i__4 = *n - *m * 3;
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i__2 = (*m << 2) + *m * *lda + max(i__3, i__4), i__1 = *m * *lda + *m + *m * *nrhs;
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if (*lwork >= max(i__2, i__1)) {
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ldwork = *lda;
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}
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itau = 1;
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iwork = *m + 1;
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i__2 = *lwork - iwork + 1;
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dgelqf_(m, n, &a[a_offset], lda, &work[itau], &work[iwork], &i__2, info);
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il = iwork;
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dlacpy_((char *)"L", m, m, &a[a_offset], lda, &work[il], &ldwork, (ftnlen)1);
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i__2 = *m - 1;
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i__1 = *m - 1;
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dlaset_((char *)"U", &i__2, &i__1, &c_b46, &c_b46, &work[il + ldwork], &ldwork, (ftnlen)1);
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ie = il + ldwork * *m;
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itauq = ie + *m;
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itaup = itauq + *m;
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iwork = itaup + *m;
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i__2 = *lwork - iwork + 1;
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|
dgebrd_(m, m, &work[il], &ldwork, &s[1], &work[ie], &work[itauq], &work[itaup],
|
|
&work[iwork], &i__2, info);
|
|
i__2 = *lwork - iwork + 1;
|
|
dormbr_((char *)"Q", (char *)"L", (char *)"T", m, nrhs, m, &work[il], &ldwork, &work[itauq], &b[b_offset], ldb,
|
|
&work[iwork], &i__2, info, (ftnlen)1, (ftnlen)1, (ftnlen)1);
|
|
i__2 = *lwork - iwork + 1;
|
|
dorgbr_((char *)"P", m, m, m, &work[il], &ldwork, &work[itaup], &work[iwork], &i__2, info,
|
|
(ftnlen)1);
|
|
iwork = ie + *m;
|
|
dbdsqr_((char *)"U", m, m, &c__0, nrhs, &s[1], &work[ie], &work[il], &ldwork, &a[a_offset], lda,
|
|
&b[b_offset], ldb, &work[iwork], info, (ftnlen)1);
|
|
if (*info != 0) {
|
|
goto L70;
|
|
}
|
|
d__1 = *rcond * s[1];
|
|
thr = max(d__1, sfmin);
|
|
if (*rcond < 0.) {
|
|
d__1 = eps * s[1];
|
|
thr = max(d__1, sfmin);
|
|
}
|
|
*rank = 0;
|
|
i__2 = *m;
|
|
for (i__ = 1; i__ <= i__2; ++i__) {
|
|
if (s[i__] > thr) {
|
|
drscl_(nrhs, &s[i__], &b[i__ + b_dim1], ldb);
|
|
++(*rank);
|
|
} else {
|
|
dlaset_((char *)"F", &c__1, nrhs, &c_b46, &c_b46, &b[i__ + b_dim1], ldb, (ftnlen)1);
|
|
}
|
|
}
|
|
iwork = ie;
|
|
if (*lwork >= *ldb * *nrhs + iwork - 1 && *nrhs > 1) {
|
|
dgemm_((char *)"T", (char *)"N", m, nrhs, m, &c_b79, &work[il], &ldwork, &b[b_offset], ldb, &c_b46,
|
|
&work[iwork], ldb, (ftnlen)1, (ftnlen)1);
|
|
dlacpy_((char *)"G", m, nrhs, &work[iwork], ldb, &b[b_offset], ldb, (ftnlen)1);
|
|
} else if (*nrhs > 1) {
|
|
chunk = (*lwork - iwork + 1) / *m;
|
|
i__2 = *nrhs;
|
|
i__1 = chunk;
|
|
for (i__ = 1; i__1 < 0 ? i__ >= i__2 : i__ <= i__2; i__ += i__1) {
|
|
i__3 = *nrhs - i__ + 1;
|
|
bl = min(i__3, chunk);
|
|
dgemm_((char *)"T", (char *)"N", m, &bl, m, &c_b79, &work[il], &ldwork, &b[i__ * b_dim1 + 1],
|
|
ldb, &c_b46, &work[iwork], m, (ftnlen)1, (ftnlen)1);
|
|
dlacpy_((char *)"G", m, &bl, &work[iwork], m, &b[i__ * b_dim1 + 1], ldb, (ftnlen)1);
|
|
}
|
|
} else {
|
|
dgemv_((char *)"T", m, m, &c_b79, &work[il], &ldwork, &b[b_dim1 + 1], &c__1, &c_b46,
|
|
&work[iwork], &c__1, (ftnlen)1);
|
|
dcopy_(m, &work[iwork], &c__1, &b[b_dim1 + 1], &c__1);
|
|
}
|
|
i__1 = *n - *m;
|
|
dlaset_((char *)"F", &i__1, nrhs, &c_b46, &c_b46, &b[*m + 1 + b_dim1], ldb, (ftnlen)1);
|
|
iwork = itau + *m;
|
|
i__1 = *lwork - iwork + 1;
|
|
dormlq_((char *)"L", (char *)"T", n, nrhs, m, &a[a_offset], lda, &work[itau], &b[b_offset], ldb,
|
|
&work[iwork], &i__1, info, (ftnlen)1, (ftnlen)1);
|
|
} else {
|
|
ie = 1;
|
|
itauq = ie + *m;
|
|
itaup = itauq + *m;
|
|
iwork = itaup + *m;
|
|
i__1 = *lwork - iwork + 1;
|
|
dgebrd_(m, n, &a[a_offset], lda, &s[1], &work[ie], &work[itauq], &work[itaup],
|
|
&work[iwork], &i__1, info);
|
|
i__1 = *lwork - iwork + 1;
|
|
dormbr_((char *)"Q", (char *)"L", (char *)"T", m, nrhs, n, &a[a_offset], lda, &work[itauq], &b[b_offset], ldb,
|
|
&work[iwork], &i__1, info, (ftnlen)1, (ftnlen)1, (ftnlen)1);
|
|
i__1 = *lwork - iwork + 1;
|
|
dorgbr_((char *)"P", m, n, m, &a[a_offset], lda, &work[itaup], &work[iwork], &i__1, info,
|
|
(ftnlen)1);
|
|
iwork = ie + *m;
|
|
dbdsqr_((char *)"L", m, n, &c__0, nrhs, &s[1], &work[ie], &a[a_offset], lda, dum, &c__1,
|
|
&b[b_offset], ldb, &work[iwork], info, (ftnlen)1);
|
|
if (*info != 0) {
|
|
goto L70;
|
|
}
|
|
d__1 = *rcond * s[1];
|
|
thr = max(d__1, sfmin);
|
|
if (*rcond < 0.) {
|
|
d__1 = eps * s[1];
|
|
thr = max(d__1, sfmin);
|
|
}
|
|
*rank = 0;
|
|
i__1 = *m;
|
|
for (i__ = 1; i__ <= i__1; ++i__) {
|
|
if (s[i__] > thr) {
|
|
drscl_(nrhs, &s[i__], &b[i__ + b_dim1], ldb);
|
|
++(*rank);
|
|
} else {
|
|
dlaset_((char *)"F", &c__1, nrhs, &c_b46, &c_b46, &b[i__ + b_dim1], ldb, (ftnlen)1);
|
|
}
|
|
}
|
|
if (*lwork >= *ldb * *nrhs && *nrhs > 1) {
|
|
dgemm_((char *)"T", (char *)"N", n, nrhs, m, &c_b79, &a[a_offset], lda, &b[b_offset], ldb, &c_b46,
|
|
&work[1], ldb, (ftnlen)1, (ftnlen)1);
|
|
dlacpy_((char *)"F", n, nrhs, &work[1], ldb, &b[b_offset], ldb, (ftnlen)1);
|
|
} else if (*nrhs > 1) {
|
|
chunk = *lwork / *n;
|
|
i__1 = *nrhs;
|
|
i__2 = chunk;
|
|
for (i__ = 1; i__2 < 0 ? i__ >= i__1 : i__ <= i__1; i__ += i__2) {
|
|
i__3 = *nrhs - i__ + 1;
|
|
bl = min(i__3, chunk);
|
|
dgemm_((char *)"T", (char *)"N", n, &bl, m, &c_b79, &a[a_offset], lda, &b[i__ * b_dim1 + 1],
|
|
ldb, &c_b46, &work[1], n, (ftnlen)1, (ftnlen)1);
|
|
dlacpy_((char *)"F", n, &bl, &work[1], n, &b[i__ * b_dim1 + 1], ldb, (ftnlen)1);
|
|
}
|
|
} else {
|
|
dgemv_((char *)"T", m, n, &c_b79, &a[a_offset], lda, &b[b_offset], &c__1, &c_b46, &work[1],
|
|
&c__1, (ftnlen)1);
|
|
dcopy_(n, &work[1], &c__1, &b[b_offset], &c__1);
|
|
}
|
|
}
|
|
}
|
|
if (iascl == 1) {
|
|
dlascl_((char *)"G", &c__0, &c__0, &anrm, &smlnum, n, nrhs, &b[b_offset], ldb, info, (ftnlen)1);
|
|
dlascl_((char *)"G", &c__0, &c__0, &smlnum, &anrm, &minmn, &c__1, &s[1], &minmn, info, (ftnlen)1);
|
|
} else if (iascl == 2) {
|
|
dlascl_((char *)"G", &c__0, &c__0, &anrm, &bignum, n, nrhs, &b[b_offset], ldb, info, (ftnlen)1);
|
|
dlascl_((char *)"G", &c__0, &c__0, &bignum, &anrm, &minmn, &c__1, &s[1], &minmn, info, (ftnlen)1);
|
|
}
|
|
if (ibscl == 1) {
|
|
dlascl_((char *)"G", &c__0, &c__0, &smlnum, &bnrm, n, nrhs, &b[b_offset], ldb, info, (ftnlen)1);
|
|
} else if (ibscl == 2) {
|
|
dlascl_((char *)"G", &c__0, &c__0, &bignum, &bnrm, n, nrhs, &b[b_offset], ldb, info, (ftnlen)1);
|
|
}
|
|
L70:
|
|
work[1] = (doublereal)maxwrk;
|
|
return 0;
|
|
}
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|