DMMA
Matrix Multiply and Accumulate
2 variants on SM90 (H100)
DMMA
R,R,R,R
distilled:
@P0 DMMA.8x8x4 R0, R0, R0, R0 ;key:
DMMA_R_R_R_R| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | pred | operand 0 | operand 1 | operand 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | cABS | cNEG | ||||||||||||||||||||||||
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| operand 3 | cNEG | cABS | cABS | cNEG | modi 1 | modi 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | stall | y | r-bar | w-bar | b-mask | reuse | 0 | 0 | ||||||||||||||||||||||||
Modifier Group 1
| Binary | Value |
|---|---|
| 00 | 8x8x4 |
| 01 | 16x8x4 |
| 10 | 16x8x8 |
| 11 | 16x8x16 |
Modifier Group 2
| Binary | Value |
|---|---|
| 00 | (default) |
| 01 | RM |
| 10 | RP |
| 11 | RZ |
DMMA
R,R,R,R,UP
distilled:
@P0 DMMA.8x8x4 R0, R0, R0, R0, UP6 ;key:
DMMA_R_R_R_R_UP| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | pred | operand 0 | operand 1 | operand 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | cABS | cNEG | ||||||||||||||||||||||||
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| operand 3 | cNEG | cABS | cABS | cNEG | modi 1 | modi 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | operand 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | stall | y | r-bar | w-bar | b-mask | reuse | 0 | 0 | ||||||||||||||||||||||||||
Modifier Group 1
| Binary | Value |
|---|---|
| 00 | 8x8x4 |
| 01 | 16x8x4 |
| 10 | 16x8x8 |
| 11 | 16x8x16 |
Modifier Group 2
| Binary | Value |
|---|---|
| 00 | (default) |
| 01 | RM |
| 10 | RP |
| 11 | RZ |