Set SCALE early for robust triangular solvers#712
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langou merged 2 commits intoReference-LAPACK:masterfrom Sep 29, 2022
Merged
Set SCALE early for robust triangular solvers#712langou merged 2 commits intoReference-LAPACK:masterfrom
langou merged 2 commits intoReference-LAPACK:masterfrom
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The changes look great to me, @angsch! However, I am not sure if we should remove LABAD from the complex routines or add it to the real-valued routines.
1) The docs define SCALE as an output argument. Set SCALE *before* the quick return case to have SCALE defined in all cases. This is how the similar routine TRSYL handles the case already. 2) Remove invocations of LABAD in complex routines and be consistent with their real counterparts, which do not call LABAD.
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@weslleyspereira Thanks for your review. The remaining data types have been added; the link to the issue has been moved to the commit message. In view of #96, I did not reintroduce |
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Thanks for citing issue #96 ! I talked to Jim Demmel and other people, and
they recommended removing those calls as well.
Weslley
…On Sun, Sep 25, 2022 at 10:22 AM angsch ***@***.***> wrote:
@weslleyspereira <https://github.com/weslleyspereira> Thanks for your
review. The remaining data types have been added; the link to the issue has
been moved to the commit message.
In view of #96 <#96>, I
did not reintroduce LABAD.
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langou
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Sep 29, 2022
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Update robust triangular solver
LATRSand robust banded triangular solverLATBS.The docs define
SCALEas an output argument. SetSCALEbefore the quick return case to haveSCALEset (to the expected value 1.0) in all cases. This is how the similar routineTRSYLhandles the corner case already.Remove invocations of
LABADin complex routines and be consistent with the real counterparts, which do not callLABAD.