asc_mark_stamp

Applicability

Function Usage

Marks a specific position during operator execution by calling this API, facilitating subsequent analysis of code execution paths and performance hotspots through the pipeline chart.

Prototype

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template<pipe_t pipe = PIPE_S>
__aicore__ inline void asc_mark_stamp(uint16_t idx)

template<pipe_t pipe = PIPE_S, uint16_t idx>
__aicore__ inline void asc_mark_stamp()

Parameters

Returns

None

Restrictions

• The value range of index is [0, 4095]. To easily find the corresponding code in the stamping diagram, you are advised not to use the same index repeatedly.
• If a MarkStamp instruction is added to a loop, a stamp is output each time the instruction is executed, and the index is the same.
• If you add stamps to two adjacent VFs, MarkStamp1 and MarkStamp2 will be optimized and no stamp will be output because the compiler may fuse VF A and VF B.

Examples

mte2_opt();
mte1_opt();
// Stamping at the beginning of operator execution.
asc_mark_stamp<CUBE, 0>();
// Performing core computation.
cube_opt();
// Stamping at the end of operator execution.
asc_mark_stamp<CUBE, 1>();
mte3_opt();