Tiling Schemes and Data Type Combinations - 2025.2 English

The following table specifies the tiling scheme used for a given data type combination and the corresponding default output data type for AI Engine devices:

Table 22 Matrix Multiply Tiling Pattern Combination for AIE

Input Type Combination		Tiling Scheme		Output Type
A	B	A	B
int16	int16	4x4	4x4	int16
int16	cint16	4x2	2x2	cint16
int16	int32	4x2	2x2	int32
int16	cint32	2x4	4x2	cint32
cint16	int16	4x4	4x2	cint16
cint16	cint16	4x4	4x2	cint16
cint16	int32	4x4	4x2	cint32
cint16	cint32	2x2	2x2	cint32
int32	int16	4x4	4x2	int32
int32	int32	4x4	4x2	int32
int32	cint16	4x4	4x2	cint32
int32	cint32	2x2	2x2	cint32
cint32	int16	2x4	4x2	cint32
cint32	cint16	2x2	2x2	cint32
cint32	int32	2x2	2x2	cint32
cint32	cint32	2x2	2x2	cint32
float	float	4x4	4x2	float
float	cfloat	2x4	4x2	cfloat
cfloat	float	2x4	4x2	cfloat
cfloat	cfloat	4x2	2x2	cfloat

The following table specifies the tiling scheme used for a given data type combination and the corresponding output data type for AIE-ML devices:

Table 23 Matrix Multiply Tiling Pattern Combination for AIE-ML

Input Type Combination		Tiling Scheme		Output Type
A	B	A	B
int16	int16	4x4	4x4	int16
int16	int32	4x4	4x4	int32
cint16	int16	4x4	4x4	cint16
cint16	cint16	1x4	4x8	cint16
int32	int16	4x4	4x4	int32
int32	int32	4x4	4x4	int32
cint32	cint16	2x4	4x8	cint32
cint32	cint32	1x2	2x8	cint32

The following table specifies the tiling scheme used for a given data type combination and the corresponding output data type for AIE-ML devices:

Table 24 Matrix Multiply Tiling Pattern Combination for AIE-MLv2

Input Type Combination		Tiling Scheme		Output Type
A	B	A	B
int16	int16	4x4	4x8	int16
int16	int32	4x4	4x8	int32
cint16	int16	4x4	4x8	cint16
cint16	cint16	1x4	4x8	cint16
int32	int16	4x2	2x8	int32
int32	int32	4x2	2x8	int32
cint32	cint16	1x2	2x8	cint32
cint32	cint32	1x2	2x8	cint32