#221 TAU problem in complex QR/LQ/RQ/QL factorizations

Both
closed-fixed
5
2014-08-06
2014-02-20
Anthony Castaldo
No

For Complex factorizations QR,LQ,QL,RQ in Row Major, we use the corresponding transpose Col Major cases to process (LQ,QR,RQ,QL, respectively). The arithmetic of that demands the resultant TAU vector (of length min(M,N)) must be conjugated; i.e. all imaginary parts in the resultant TAU vector must be negated. The bug was reported by Kosaku Nagasaka on the developer's mailing list, verified by Anthony Castaldo and discussed with Clint Whaley.

Discussion

  • Fix is in the developer basefiles, confirmed by Tony.

    Still must put in stable basefiles, and issue patch release.

     
  • I have applied fix to stable basefiles, still must errata or patch

     
  • I have errataed this problem. Release patch as soon as we've got support situation under control.

     
    • status: open-accepted --> open-fixed
     
    • status: open-fixed --> closed-fixed