What does Intel IPP status -195 (ippStsSingularErr) mean?

 
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ippStsIncompleteContextErr ippStsSparseErr

ippStsSingularErr

A singular matrix has no inverse in the required sense, so matrix inversion or a direct solve cannot proceed reliably. IPP can report this even though the input buffer is well-formed and finite.

Do not treat this as a memory layout error first. Inspect the matrix rank, determinant, pivot values or near-dependent rows and columns.

Check these details

  • Rank-deficient input, duplicate rows or columns and zero pivots.
  • Whether the algorithm expects an exactly invertible matrix.
  • Scaling, because a nearly singular matrix can fail a practical numerical test.

Intel IPP Error Reporting · LAPACK overview


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