Release date: 11/21/19.
This material is based upon work supported by the National Science Foundation and the Department of Energy under Grant No. NSF ACI 1339797, NSFOCI1032861, NSFCCF00444486, NSFCNS 0325873, NSFEIA 0122599, NSFACI0090127, DOEDEFC0201ER25478, DOEDEFC0206ER25768.
LAPACK is a software package provided by Univ. of Tennessee, Univ. of California, Berkeley, Univ. of Colorado Denver and NAG Ltd..
1. Support and questions:
2. LAPACK 3.9.0: What’s new
2.1. LAPACK QRpreconditioned QR SVD method
LAPACK QRpreconditioned QR SVD method for computing the SVD with high accuracy by Zlatko Drmac
NEW: xGESVDQ routines
See Zlatko Drmac, Algorithm 977: A QRPreconditioned QR SVD Method for Computing the SVD with High Accuracy. ACM Trans. Math. Softw. 44(1): 11:111:30 (2017)
2.2 LAPACK Householder Reconstruction
NEW: cunhr_col.f
NEW: dorhr_col.f
NEW: sorhr_col.f
NEW: zunhr_col.f
DORHR_COL takes an MbyN real matrix Q_in with orthonormal columns as input, stored in A, and performs Householder Reconstruction (HR), i.e. reconstructs Householder vectors V(i) implicitly representing another MbyN matrix Q_out, with the property that Q_in = Q_out*S, where S is an NbyN diagonal matrix with diagonal entries equal to +1 or 1. The Householder vectors (columns V(i) of V) are stored in A on output, and the diagonal entries of S are stored in D. Block reflectors are also returned in T (same output format as DGEQRT).
NEW: CUNGTSQR.f
NEW: DORGTSQR.f
NEW: SORGTSQR.f
NEW: ZUNGTSQR.f
DORTSQR reconstructs a matrix with orthonormal columns from the output of DLATSQR.
Contributors: Igor Kozachenko and Jim Demmel
3. Developer list

Zlatko Drmac, University of Zagreb

Julie Langou (University of Tennessee, USA)

Igor Kozachenko (University of California, Berkeley, USA)

Jim Demmel (University of California, Berkeley, USA)

Jack Dongarra (University of Tennessee and ORNL, USA)

Julien Langou (University of Colorado Denver, USA)
4. Thanks

MathWorks: Penny Anderson, Amanda Barry, Mary Ann Freeman, Bobby Cheng, Duncan Po, Pat Quillen, Christine Tobler.

Intel: Eugene Chereshnev

GitHub Users: Andreas Noack, Isuru Fernando, Kirana Bergstrom, Kyle Guinn Martin Kroeker, Nick Papior, Rao Garimella, Reinhold Gschweicher.Sébastien Villemo guozhong.zhuang