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ippStsZeroOcc
The actionable meaning of Intel IPP zero occupation-count warning comes from the component that returned it. The primitive completed a codebook/statistical operation but observed a zero occupation count in a result bucket or cluster.
Operational meaning
Intel IPP assigns meaning to the sign of IppStatus: negative is error, zero is clean completion, and positive is warning with potentially usable output. Output validation is therefore inseparable from status handling.
Intel IPP uses negative values for errors, zero for no warning/error, and positive values for warnings that can accompany completed output. Do not treat every nonzero status as an aborted operation. Keep the numeric value, declared return type, and first returning operation together with ippStsZeroOcc; the same integer can belong to a different status namespace in another API.
Build a reproducible record
| Capture | Diagnostic value |
|---|---|
| Function name, codebook/cluster count, source sample distribution, seed/initialization, and zero-count indices. | Identifies the concrete object and operation associated with Intel IPP zero occupation-count warning. |
| IppStatus sign and value interpreted using the same IPP headers as the linked library. | Separates argument or lifecycle state from the provider beneath the returned status. |
| Output-buffer state and checksum before and after the call. | Creates a stable before-and-after comparison. |
| Reference result or invariant appropriate to the primitive domain. | Shows whether that result is the first result or a translated summary. |
Preserve function name, codebook/cluster count, source sample distribution, seed/initialization, and zero-count indices before reinstalling, rebooting, clearing state, or substituting another device or provider. A success observed only after such a change is useful comparison data, but it does not identify the original cause.
Checks that separate the causes
- Add one controlled sample for the empty bucket and rerun. Keep unrelated inputs fixed so the change remains attributable to the original status.
- Run one boundary input and one known-good control without changing dispatch/library version. Record the first returned status and any state transition observed.
- Check the status immediately; IPP does not preserve a global last-status value. Treat a changed result as a new boundary rather than automatic resolution of the failing return.
Resolution criteria
Targeted correction. Adjust initialization, training data, or empty-cluster handling instead of reading uninitialized representative values. Modify only the object, argument, policy, provider, or lifecycle state identified by the collected evidence.
Acceptance criterion. All required buckets have supported occupancy or the application deliberately handles empty ones. Re-run the original operation that produced the original call under its original identity and supported configuration, then keep one negative control that still produces the expected neighboring outcome.
Technical references
References for ippStsZeroOcc on the deployed platform version.
- Intel: Integrated Performance Primitives product and documentation — defines the status namespace used.
- Intel IPP developer guide — documents the API or lifecycle boundary behind the recorded status.
- Intel IPP error-reporting reference — provides ABI, implementation, or protocol context.
- AllStat source record: Intel ippdefs.h semantics — supports the portability and verification limits.
Looking for a different code? Search another status or error code.