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batched - dense: Testing and fixing Serial QR #2342

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@lucbv lucbv commented Sep 19, 2024

The serial QR algorithms does not have unit-tests and is failing for non square matrices. See issue #2328.
This first commit fixes the issue with rectangular matrices and adds a basic test for that use case.
Next will work on adding a test that exercises the interfaces on multiple matrices of different sizes within a parallel_for. Finally equivalent tests will be added for the square case as well.

Tasks:

  • analytical test on rectangular matrix (SerialQR, ApplyQ, FormQ, Q*Q^t=I)
    • SerialQR
    • ApplyQ
    • FormQ
  • multiple variable size rectangular matrices (same API as above)
    • SerialQR
    • ApplyQ
    • FormQ
  • analytical test on square matrix
    • SerialQR
    • ApplyQ
    • FormQ
  • multiple variable size square matrices
    • SerialQR
    • ApplyQ
    • FormQ

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edit - duplicated comment

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@cwpearson cwpearson Oct 10, 2024

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Can any of these structs be moved to Impl while you're at it? e.g. SerialQR_FormQ_Internal. Or would you prefer to do that as a separate deprecating PR?

}
#endif

// #if defined(KOKKOSKERNELS_INST_COMPLEX_FLOAT)
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Leave an explanation for why this is disabled.

The serial QR algorithms does not have unit-tests and is failing
for non square matrices. See issue kokkos#2328.
This first commit fixes the issue with rectangular matrices and
adds a basic test for that use case. Next will work on adding a
test that exercises the interfaces on multiple matrices of different
sizes within a parallel_for. Finally equivalent tests will be added
for the square case as well.

Signed-off-by: Luc <lberge@sandia.gov>
Signed-off-by: Luc <lberge@sandia.gov>
Signed-off-by: Luc <lberge@sandia.gov>
It looks like the Left NoTranspose ApplyQ is not doing the correct
thing. Will have a look at that next.

Signed-off-by: Luc <lberge@sandia.gov>
Signed-off-by: Luc <lberge@sandia.gov>
Signed-off-by: Luc <lberge@sandia.gov>
Signed-off-by: Luc <lberge@sandia.gov>
Signed-off-by: Luc <lberge@sandia.gov>
Signed-off-by: Luc <lberge@sandia.gov>
Signed-off-by: Luc <lberge@sandia.gov>
Signed-off-by: Luc Berger-Vergiat <lberge@sandia.gov>
Signed-off-by: Luc Berger-Vergiat <lberge@sandia.gov>
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2 participants