NVIDIA ISA Viewer

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