SetLoadDataBoundary

Supported Products

Product	Supported (√/x)
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	x
Atlas inference product's AI Core	√
Atlas inference product's Vector Core	x
Atlas training products	x

Function Usage

Sets A1/B1 boundary value when Load3D is called.

If the address of the source operand on A1/B1 exceeds the configured boundary when Load3D is processing the source operand, data is read from the start address of A1/B1.

Prototype

__aicore__ inline void SetLoadDataBoundary(uint32_t boundaryValue)

Parameters

**Table 1** Parameters
Parameter	Input/Output	Meaning
boundaryValue	Input	Boundary value. Load3Dv1: The unit is 32 bytes. Load3Dv2: The unit is byte.

Constraints

When Load3Dv1 is used, the minimum value of boundaryValue is 16 (unit: 32 bytes). When Load3Dv2 is used, the minimum value of boundaryValue is 1024 (unit: byte).
If the boundary value is set by using SetLoadDataBoundary and Load3D is used together, the A1/B1 initial address of Load3D must be within the configured boundary.
If boundaryValue is set to 0, there is no boundary and the entire A1/B1 can be used.
For details about the operand address alignment requirements, see General Address Alignment Restrictions.

Example

See Example.

Parent topic: Data Movement