Convolution and Correlation Task Status and Error Reporting

Developer Reference for Intel® oneAPI Math Kernel Library for C

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ID 766684

Date 3/31/2023

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Convolution and Correlation Task Status and Error Reporting

The task status is an integer value, which is zero if no error has been detected while processing the task, or a specific non-zero error code otherwise. Negative status values indicate errors, and positive values indicate warnings.

An error can be caused by invalid parameter values, a system fault like a memory allocation failure, or can be an internal error self-detected by the software.

Each task descriptor contains the current status of the task. When creating a task object, the constructor assigns the VSL_STATUS_OK status to the task. When processing the task afterwards, other routines such as editors or executors can change the task status if an error occurs and write a corresponding error code into the task status field.

Note that at the stage of creating a task or editing its parameters, the set of parameters may be inconsistent. The parameter consistency check is only performed during the task commitment operation, which is implicitly invoked before task execution or task copying. If an error is detected at this stage, task execution or task copying is terminated and the task descriptor saves the corresponding error code. Once an error occurs, any further attempts to process that task descriptor is terminated and the task keeps the same error code.

Normally, every convolution or correlation function (except DeleteTask) returns the status assigned to the task while performing the function operation.

The header files define symbolic names for the status codes. These names are defined as macros via the #define statements.

If there is no error, the VSL_STATUS_OK status is returned, which is defined as zero:

: #define VSL_STATUS_OK 0

In case of an error, a non-zero error code is returned, which indicates the origin of the failure. The following status codes for the convolution/correlation error codes are pre-defined in the header files.

Convolution/Correlation Status Codes
Status Code	Description
VSL_CC_ERROR_NOT_IMPLEMENTED	Requested functionality is not implemented.
VSL_CC_ERROR_ALLOCATION_FAILURE	Memory allocation failure.
VSL_CC_ERROR_BAD_DESCRIPTOR	Task descriptor is corrupted.
VSL_CC_ERROR_SERVICE_FAILURE	A service function has failed.
VSL_CC_ERROR_EDIT_FAILURE	Failure while editing the task.
VSL_CC_ERROR_EDIT_PROHIBITED	You cannot edit this parameter.
VSL_CC_ERROR_COMMIT_FAILURE	Task commitment has failed.
VSL_CC_ERROR_COPY_FAILURE	Failure while copying the task.
VSL_CC_ERROR_DELETE_FAILURE	Failure while deleting the task.
VSL_CC_ERROR_BAD_ARGUMENT	Bad argument or task parameter.
VSL_CC_ERROR_JOB	Bad parameter: job.
SL_CC_ERROR_KIND	Bad parameter: kind.
VSL_CC_ERROR_MODE	Bad parameter: mode.
VSL_CC_ERROR_METHOD	Bad parameter: method.
VSL_CC_ERROR_TYPE	Bad parameter: type.
VSL_CC_ERROR_EXTERNAL_PRECISION	Bad parameter: external_precision.
VSL_CC_ERROR_INTERNAL_PRECISION	Bad parameter: internal_precision.
VSL_CC_ERROR_PRECISION	Incompatible external/internal precisions.
VSL_CC_ERROR_DIMS	Bad parameter: dims.
VSL_CC_ERROR_XSHAPE	Bad parameter: xshape.
VSL_CC_ERROR_YSHAPE	Bad parameter: yshape. Callback function for an abstract BRNG returns an invalid number of updated entries in a buffer, that is, < 0 or >nmax.
VSL_CC_ERROR_ZSHAPE	Bad parameter: zshape.
VSL_CC_ERROR_XSTRIDE	Bad parameter: xstride.
VSL_CC_ERROR_YSTRIDE	Bad parameter: ystride.
VSL_CC_ERROR_ZSTRIDE	Bad parameter: zstride.
VSL_CC_ERROR_X	Bad parameter: x.
VSL_CC_ERROR_Y	Bad parameter: y.
VSL_CC_ERROR_Z	Bad parameter: z.
VSL_CC_ERROR_START	Bad parameter: start.
VSL_CC_ERROR_DECIMATION	Bad parameter: decimation.
VSL_CC_ERROR_OTHER	Another error.

Parent topic: Convolution and Correlation

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Convolution and Correlation Task Status and Error Reporting