mstxDomainRangeStartA

Identifies the start of a time range event in a specified domain.

If the input domain has been destroyed, an alarm is recorded in the log and the dotting process is not performed.

mstxRangeId mstxDomainRangeStartA(mstxDomainHandle_t domain, const char *message, aclrtStream stream)

**Table 1** Parameters
Parameter	Input/Output	Description
domain	Input	Specified domain handle.
message	Input	String pointer to the dotting information. Length of the input message string: In MSPTI scenarios, the length cannot exceed 255 bytes. In scenarios other than MSPTI (such as msProf command line and Ascend PyTorch Profiler), the length cannot exceed 156 bytes.
stream	Input	Stream for executing dotting tasks. Marks only instantaneous events on the host when nullptr is configured. Identifies instantaneous events on the host and device when a valid stream is configured.

range_id: identifies the range. If the dotting fails or the domain is destroyed, 0 is returned.