Intel IPP status 18 (ippStsSingularity): meaning and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: singularity was detected during the operation.

Could be also:
Constant	Type	OS
ERROR_NO_MORE_FILES	Win32 error	Windows
KERN_INVALID_VALUE	Kern return	Mac
EXDEV	errno	Any
TRAP_CAUSE_UNKNOWN	BugCheck Code	Windows

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ippStsUnderflow	ippStsDomain

ippStsSingularity

This warning indicates that the operation encountered a singular point or singular mathematical condition but reported it as nonfatal for the chosen routine. It differs from a hard singular-matrix error.

The output should be inspected carefully. A warning status can be the reason for unstable coefficients, infinities or degenerate transform parameters.

Check these details

Denominators, pivots or transform parameters that approach zero.
Whether the routine documents a fallback output for singular cases.
Input scaling and regularization options.

Intel IPP Error Reporting · IPP special-case handling · LAPACK overview

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