OV - exec - Loop 201

	Loop Id: 201	Module: exec	Source: advec_mom.cpp:219-221 [...]	Coverage: 4.43%

0x41ef00 MOVPRFX	Z22, Z21

0x41ef04 SDIV	Z22.D, P0/M, Z22.D, Z1.D

0x41ef08 DECD	X2, ALL

0x41ef0c ADD	Z23.D, Z2.D, Z22.D

0x41ef10 MOVPRFX	Z24, Z21

0x41ef14 MLS	Z24.D, P0/M, Z22.D, Z1.D

0x41ef18 ADD	Z22.D, Z6.D, Z22.D

0x41ef1c ADD	Z21.D, Z21.D, Z0.D

0x41ef20 SXTW	Z23.D, P0/M, Z23.D

0x41ef24 SXTW	Z22.D, P0/M, Z22.D

0x41ef28 MUL	Z25.D, Z4.D, Z23.D

0x41ef2c MUL	Z27.D, Z5.D, Z23.D

0x41ef30 MUL	Z22.D, Z7.D, Z22.D

0x41ef34 ADD	Z24.D, Z3.D, Z24.D

0x41ef38 ADR	Z25.D, [Z17, Z25.D,LSL #3]    [10]

0x41ef3c ADR	Z27.D, [Z18, Z27.D,LSL #3]    [13]

0x41ef40 ADR	Z22.D, [Z19, Z22.D,LSL #3]    [14]

0x41ef44 ADR	Z25.D, [Z25, Z24.D,SXTW #3]    [7]

0x41ef48 ADR	Z27.D, [Z27, Z24.D,SXTW #3]    [12]

0x41ef4c ADR	Z22.D, [Z22, Z24.D,SXTW #3]    [3]

0x41ef50 LD1D	{Z26.D}, P0/Z, [V25.D]    [6]

0x41ef54 LD1D	{Z27.D}, P0/Z, [V27.D]    [11]

0x41ef58 LD1D	{Z22.D}, P0/Z, [V22.D]    [2]

0x41ef5c FMLA	Z22.D, P0/M, Z26.D, Z27.D

0x41ef60 MUL	Z26.D, Z7.D, Z23.D

0x41ef64 MUL	Z23.D, Z16.D, Z23.D

0x41ef68 ADR	Z26.D, [Z19, Z26.D,LSL #3]    [14]

0x41ef6c ADR	Z23.D, [Z20, Z23.D,LSL #3]    [1]

0x41ef70 ADR	Z26.D, [Z26, Z24.D,SXTW #3]    [9]

0x41ef74 ADR	Z23.D, [Z23, Z24.D,SXTW #3]    [5]

0x41ef78 LD1D	{Z26.D}, P0/Z, [V26.D]    [8]

0x41ef7c LD1D	{Z23.D}, P0/Z, [V23.D]    [4]

0x41ef80 FSUB	Z22.D, Z22.D, Z26.D

0x41ef84 FDIV	Z22.D, P0/M, Z22.D, Z23.D

0x41ef88 ST1D	{Z22.D}, P0, [V25.D]    [6]

0x41ef8c CBNZ	X2, 41ef00

/home/hbollore/qaas/qaas-runs/174-169-1878/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/advec_mom.cpp: 219 - 221

--------------------------------------------------------------------------------

219:     for (int j = (y_min + 1); j < (y_max + 1 + 2); j++) {

220:       for (int i = (x_min + 1); i < (x_max + 1 + 2); i++) {

221:         vel1(i, j) = (vel1(i, j) * node_mass_pre(i, j) + mom_flux(i + 0, j - 1) - mom_flux(i, j)) / node_mass_post(i, j);

/home/hbollore/qaas/qaas-runs/174-169-1878/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/context.h: 69 - 69

--------------------------------------------------------------------------------

69:   T &operator()(size_t i, size_t j) const { return data[i + j * sizeX]; }

Coverage (%)	Name	Source Location	Module
○100.00	__kmp_invoke_microtask		libomp.so

min	med	avg	max

Percentile Index	10	20	30	40	50	60	70	80	90	100
Value

min	med	avg	max

Percentile Index	10	20	30	40	50	60	70	80	90	100
Value

Path /

Metric	Value
CQA speedup if no scalar integer	1.00
CQA speedup if FP arith vectorized	1.00
CQA speedup if fully vectorized	1.21 - 1.00
CQA speedup if no inter-iteration dependency	NA
CQA speedup if next bottleneck killed	3.72
Bottlenecks	P8, P10,
Function	advec_mom_kernel(int, int, int, int, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer1D&, clover::Buffer1D&, int, int, int) [clone .omp_outlined.22]
Source	advec_mom.cpp:219-221,context.h:69-69
Source loop unroll info	unrolled by 2
Source loop unroll confidence level	max
Unroll/vectorization loop type	NA
Unroll factor	2
CQA cycles	7.25 - 26.99
CQA cycles if no scalar integer	7.25 - 26.99
CQA cycles if FP arith vectorized	7.25 - 26.99
CQA cycles if fully vectorized	6.00 - 26.99
Front-end cycles	3.88
P0 cycles	0.50
P1 cycles	0.50
P2 cycles	0.00
P3 cycles	0.00
P4 cycles	0.00
P5 cycles	0.00
P6 cycles	0.50
P7 cycles	0.50
P8 cycles	7.25
P9 cycles	7.25
P10 cycles	7.25
P11 cycles	7.25
P12 cycles	2.17
P13 cycles	1.83
P14 cycles	2.00
P15 cycles	0.00
P16 cycles	0.00
DIV/SQRT cycles	4.37 - 26.99
Inter-iter dependencies cycles	2
FE+BE cycles (UFS)	NA
Stall cycles (UFS)	NA
Nb insns	36.00
Nb uops	31.00
Nb loads	NA
Nb stores	1.00
Nb stack references	0.00
FLOP/cycle	1.10 - 0.30
Nb FLOP add-sub	2.00
Nb FLOP mul	0.00
Nb FLOP fma	2.00
Nb FLOP div	2.00
Nb FLOP rcp	0.00
Nb FLOP sqrt	0.00
Nb FLOP rsqrt	0.00
Bytes/cycle	3.56 - 13.24
Bytes prefetched	0.00
Bytes loaded	80.00
Bytes stored	16.00
Stride 0	0.00
Stride 1	0.00
Stride n	0.00
Stride unknown	9.00
Stride indirect	5.00
Vectorization ratio all	62.86
Vectorization ratio load	33.33
Vectorization ratio store	100.00
Vectorization ratio mul	100.00
Vectorization ratio add_sub	35.29
Vectorization ratio fma	100.00
Vectorization ratio div_sqrt	100.00
Vectorization ratio other	50.00
Vector-efficiency ratio all	84.29
Vector-efficiency ratio load	66.67
Vector-efficiency ratio store	100.00
Vector-efficiency ratio mul	100.00
Vector-efficiency ratio add_sub	67.65
Vector-efficiency ratio fma	100.00
Vector-efficiency ratio div_sqrt	100.00
Vector-efficiency ratio other	100.00

Metric	Value
CQA speedup if no scalar integer	1.00
CQA speedup if FP arith vectorized	1.00
CQA speedup if fully vectorized	1.21 - 1.00
CQA speedup if no inter-iteration dependency	NA
CQA speedup if next bottleneck killed	3.72
Bottlenecks	P8, P10,
Function	advec_mom_kernel(int, int, int, int, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer1D&, clover::Buffer1D&, int, int, int) [clone .omp_outlined.22]
Source	advec_mom.cpp:219-221,context.h:69-69
Source loop unroll info	unrolled by 2
Source loop unroll confidence level	max
Unroll/vectorization loop type	NA
Unroll factor	2
CQA cycles	7.25 - 26.99
CQA cycles if no scalar integer	7.25 - 26.99
CQA cycles if FP arith vectorized	7.25 - 26.99
CQA cycles if fully vectorized	6.00 - 26.99
Front-end cycles	3.88
P0 cycles	0.50
P1 cycles	0.50
P2 cycles	0.00
P3 cycles	0.00
P4 cycles	0.00
P5 cycles	0.00
P6 cycles	0.50
P7 cycles	0.50
P8 cycles	7.25
P9 cycles	7.25
P10 cycles	7.25
P11 cycles	7.25
P12 cycles	2.17
P13 cycles	1.83
P14 cycles	2.00
P15 cycles	0.00
P16 cycles	0.00
DIV/SQRT cycles	4.37 - 26.99
Inter-iter dependencies cycles	2
FE+BE cycles (UFS)	NA
Stall cycles (UFS)	NA
Nb insns	36.00
Nb uops	31.00
Nb loads	NA
Nb stores	1.00
Nb stack references	0.00
FLOP/cycle	1.10 - 0.30
Nb FLOP add-sub	2.00
Nb FLOP mul	0.00
Nb FLOP fma	2.00
Nb FLOP div	2.00
Nb FLOP rcp	0.00
Nb FLOP sqrt	0.00
Nb FLOP rsqrt	0.00
Bytes/cycle	3.56 - 13.24
Bytes prefetched	0.00
Bytes loaded	80.00
Bytes stored	16.00
Stride 0	0.00
Stride 1	0.00
Stride n	0.00
Stride unknown	9.00
Stride indirect	5.00
Vectorization ratio all	62.86
Vectorization ratio load	33.33
Vectorization ratio store	100.00
Vectorization ratio mul	100.00
Vectorization ratio add_sub	35.29
Vectorization ratio fma	100.00
Vectorization ratio div_sqrt	100.00
Vectorization ratio other	50.00
Vector-efficiency ratio all	84.29
Vector-efficiency ratio load	66.67
Vector-efficiency ratio store	100.00
Vector-efficiency ratio mul	100.00
Vector-efficiency ratio add_sub	67.65
Vector-efficiency ratio fma	100.00
Vector-efficiency ratio div_sqrt	100.00
Vector-efficiency ratio other	100.00

Path /

Average path: Display a virtual path defined by average values of all real paths

Function	advec_mom_kernel(int, int, int, int, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer1D&, clover::Buffer1D&, int, int, int) [clone .omp_outlined.22]
Source file and lines	advec_mom.cpp:219-221
Module	exec

The loop is defined in:

/home/hbollore/qaas/qaas-runs/174-169-1878/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/advec_mom.cpp:219-221
/home/hbollore/qaas/qaas-runs/174-169-1878/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/context.h:69

The related source loop is unrolled by 2 (including vectorization).

gain
potential
hint
expert

Vectorization

Your loop is partially vectorized. 84% of vector register length is used (average across all VPU instructions).

Details

62% of VPU instructions are used in vector version (process two or more data elements in vector registers):

33% of VPU loads are used in vector version.
35% of VPU addition or subtraction instructions are used in vector version.
50% of VPU instructions that are not load, store, addition, subtraction nor multiply instructions are used in vector version.

FMA

Detected 2 FMA (fused multiply-add) operations.

Matching between your loop (in the source code) and the binary loop

The binary loop is composed of 8 FP arithmetical operations:

4: addition or subtraction (2 inside FMA instructions)
2: multiply (all inside FMA instructions)
2: divide

The binary loop is loading 80 bytes. The binary loop is storing 16 bytes.

Arithmetic intensity

Arithmetic intensity is 0.08 FP operations per loaded or stored byte.

General properties

nb instructions	36
loop length	144
nb stack references	0

Front-end

FIT IN UOP CACHE

front end

3.88 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15	P16
uops	0.50	0.50	0.00	0.00	0.00	0.00	0.50	0.50	7.25	7.25	7.25	7.25	2.17	1.83	2.00	0.00	0.00
cycles	0.50	0.50	0.00	0.00	0.00	0.00	0.50	0.50	7.25	7.25	7.25	7.25	2.17	1.83	2.00	0.00	0.00

Execution ports to units layout:

P0: BRU
P1: BRU
P2: ALU
P3: ALU
P4: ALU
P5: ALU
P6: ALU
P7: ALU
P8 (128 bits): VPU, FP store data, ALU, DIV/SQRT
P9 (128 bits): VPU, ALU, FP store data
P10 (128 bits): VPU, ALU, DIV/SQRT
P11 (128 bits): ALU, VPU
P12 (256 bits): store address, load
P13 (256 bits): store address, load
P14 (256 bits): load
P15 (64 bits): store data
P16 (64 bits): store data

Cycles executing div or sqrt instructions	4.37-26.99
Longest recurrence chain latency (RecMII)	2.00

Cycles summary

Front-end	3.88
Data deps.	2.00
Overall L1	7.25-26.99

Vectorization ratios

INT

all	59%
load	33%
store	100%
mul	100%
add-sub	31%
fma	NA (no fma vectorizable/vectorized instructions)
other	60%

all	100%
load	NA (no load vectorizable/vectorized instructions)
store	NA (no store vectorizable/vectorized instructions)
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	100%
fma	100%
div/sqrt	100%
other	NA (no other vectorizable/vectorized instructions)

INT+FP

all	62%
load	33%
store	100%
mul	100%
add-sub	35%
fma	100%
div/sqrt	100%
other	50%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each iteration of the binary loop takes 26.99 cycles. At this rate:

3% of peak load performance is reached (2.96 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
1% of peak store performance is reached (0.59 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

ASM code

In the binary file, the address of the loop is: 41ef00

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15	P16	Latency	Recip. throughput	Vectorization
MOVPRFX Z22, Z21	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (100.0%)
SDIV Z22.D, P0/M, Z22.D, Z1.D	1	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	7-20	0.87-20	vect (100.0%)
DECD X2, ALL	1	0	0	0	0	0	0	0.50	0.50	0	0	0	0	0	0	0	0	0	2	0.50	scal (50.0%)
ADD Z23.D, Z2.D, Z22.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	vect (100.0%)
MOVPRFX Z24, Z21	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (100.0%)
MLS Z24.D, P0/M, Z22.D, Z1.D	1	0	0	0	0	0	0	0	0	0.50	0	0.50	0	0	0	0	0	0	5	1	vect (100.0%)
ADD Z22.D, Z6.D, Z22.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	vect (100.0%)
ADD Z21.D, Z21.D, Z0.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	vect (100.0%)
SXTW Z23.D, P0/M, Z23.D	1	0	0	0	0	0	0	0	0	0	0.50	0	0.50	0	0	0	0	0	2	0.50	vect (100.0%)
SXTW Z22.D, P0/M, Z22.D	1	0	0	0	0	0	0	0	0	0	0.50	0	0.50	0	0	0	0	0	2	0.50	vect (100.0%)
MUL Z25.D, Z4.D, Z23.D																					vect (100.0%)
MUL Z27.D, Z5.D, Z23.D																					vect (100.0%)
MUL Z22.D, Z7.D, Z22.D																					vect (100.0%)
ADD Z24.D, Z3.D, Z24.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	vect (100.0%)
ADR Z25.D, [Z17, Z25.D,LSL #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z27.D, [Z18, Z27.D,LSL #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z22.D, [Z19, Z22.D,LSL #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z25.D, [Z25, Z24.D,SXTW #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z27.D, [Z27, Z24.D,SXTW #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z22.D, [Z22, Z24.D,SXTW #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
LD1D {Z26.D}, P0/Z, [V25.D]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.33	0.33	0.33	0	0	9	1	vect (100.0%)
LD1D {Z27.D}, P0/Z, [V27.D]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.33	0.33	0.33	0	0	9	1	vect (100.0%)
LD1D {Z22.D}, P0/Z, [V22.D]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.33	0.33	0.33	0	0	9	1	vect (100.0%)
FMLA Z22.D, P0/M, Z26.D, Z27.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	4	0.25	vect (100.0%)
MUL Z26.D, Z7.D, Z23.D																					vect (100.0%)
MUL Z23.D, Z16.D, Z23.D																					vect (100.0%)
ADR Z26.D, [Z19, Z26.D,LSL #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z23.D, [Z20, Z23.D,LSL #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z26.D, [Z26, Z24.D,SXTW #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z23.D, [Z23, Z24.D,SXTW #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
LD1D {Z26.D}, P0/Z, [V26.D]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.33	0.33	0.33	0	0	9	1	vect (100.0%)
LD1D {Z23.D}, P0/Z, [V23.D]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.33	0.33	0.33	0	0	9	1	vect (100.0%)
FSUB Z22.D, Z22.D, Z26.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	vect (100.0%)
FDIV Z22.D, P0/M, Z22.D, Z23.D	1	0	0	0	0	0	0	0	0	0.50	0	0.50	0	0	0	0	0	0	7-15	3.50-6.99	vect (100.0%)
ST1D {Z22.D}, P0, [V25.D]	1	0	0	0	0	0	0	0	0	0.50	0.50	0	0	0.50	0.50	0	0	0	2	1	vect (100.0%)
CBNZ X2, 41ef00 <_Z16advec_mom_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_S2_S2_S2_S2_S2_RNS_8Buffer1DIdEES5_iii.omp_outlined.22+0x140>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A

Function	advec_mom_kernel(int, int, int, int, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer1D&, clover::Buffer1D&, int, int, int) [clone .omp_outlined.22]
Source file and lines	advec_mom.cpp:219-221
Module	exec

The loop is defined in:

/home/hbollore/qaas/qaas-runs/174-169-1878/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/advec_mom.cpp:219-221
/home/hbollore/qaas/qaas-runs/174-169-1878/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/context.h:69

The related source loop is unrolled by 2 (including vectorization).

gain
potential
hint
expert

Vectorization

Your loop is partially vectorized. 84% of vector register length is used (average across all VPU instructions).

Details

62% of VPU instructions are used in vector version (process two or more data elements in vector registers):

33% of VPU loads are used in vector version.
35% of VPU addition or subtraction instructions are used in vector version.
50% of VPU instructions that are not load, store, addition, subtraction nor multiply instructions are used in vector version.

FMA

Detected 2 FMA (fused multiply-add) operations.

Matching between your loop (in the source code) and the binary loop

The binary loop is composed of 8 FP arithmetical operations:

4: addition or subtraction (2 inside FMA instructions)
2: multiply (all inside FMA instructions)
2: divide

The binary loop is loading 80 bytes. The binary loop is storing 16 bytes.

Arithmetic intensity

Arithmetic intensity is 0.08 FP operations per loaded or stored byte.

General properties

nb instructions	36
loop length	144
nb stack references	0

Front-end

FIT IN UOP CACHE

front end

3.88 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15	P16
uops	0.50	0.50	0.00	0.00	0.00	0.00	0.50	0.50	7.25	7.25	7.25	7.25	2.17	1.83	2.00	0.00	0.00
cycles	0.50	0.50	0.00	0.00	0.00	0.00	0.50	0.50	7.25	7.25	7.25	7.25	2.17	1.83	2.00	0.00	0.00

Execution ports to units layout:

P0: BRU
P1: BRU
P2: ALU
P3: ALU
P4: ALU
P5: ALU
P6: ALU
P7: ALU
P8 (128 bits): VPU, FP store data, ALU, DIV/SQRT
P9 (128 bits): VPU, ALU, FP store data
P10 (128 bits): VPU, ALU, DIV/SQRT
P11 (128 bits): ALU, VPU
P12 (256 bits): store address, load
P13 (256 bits): store address, load
P14 (256 bits): load
P15 (64 bits): store data
P16 (64 bits): store data

Cycles executing div or sqrt instructions	4.37-26.99
Longest recurrence chain latency (RecMII)	2.00

Cycles summary

Front-end	3.88
Data deps.	2.00
Overall L1	7.25-26.99

Vectorization ratios

INT

all	59%
load	33%
store	100%
mul	100%
add-sub	31%
fma	NA (no fma vectorizable/vectorized instructions)
other	60%

all	100%
load	NA (no load vectorizable/vectorized instructions)
store	NA (no store vectorizable/vectorized instructions)
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	100%
fma	100%
div/sqrt	100%
other	NA (no other vectorizable/vectorized instructions)

INT+FP

all	62%
load	33%
store	100%
mul	100%
add-sub	35%
fma	100%
div/sqrt	100%
other	50%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each iteration of the binary loop takes 26.99 cycles. At this rate:

3% of peak load performance is reached (2.96 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
1% of peak store performance is reached (0.59 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

ASM code

In the binary file, the address of the loop is: 41ef00

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15	P16	Latency	Recip. throughput	Vectorization
MOVPRFX Z22, Z21	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (100.0%)
SDIV Z22.D, P0/M, Z22.D, Z1.D	1	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	7-20	0.87-20	vect (100.0%)
DECD X2, ALL	1	0	0	0	0	0	0	0.50	0.50	0	0	0	0	0	0	0	0	0	2	0.50	scal (50.0%)
ADD Z23.D, Z2.D, Z22.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	vect (100.0%)
MOVPRFX Z24, Z21	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (100.0%)
MLS Z24.D, P0/M, Z22.D, Z1.D	1	0	0	0	0	0	0	0	0	0.50	0	0.50	0	0	0	0	0	0	5	1	vect (100.0%)
ADD Z22.D, Z6.D, Z22.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	vect (100.0%)
ADD Z21.D, Z21.D, Z0.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	vect (100.0%)
SXTW Z23.D, P0/M, Z23.D	1	0	0	0	0	0	0	0	0	0	0.50	0	0.50	0	0	0	0	0	2	0.50	vect (100.0%)
SXTW Z22.D, P0/M, Z22.D	1	0	0	0	0	0	0	0	0	0	0.50	0	0.50	0	0	0	0	0	2	0.50	vect (100.0%)
MUL Z25.D, Z4.D, Z23.D																					vect (100.0%)
MUL Z27.D, Z5.D, Z23.D																					vect (100.0%)
MUL Z22.D, Z7.D, Z22.D																					vect (100.0%)
ADD Z24.D, Z3.D, Z24.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	vect (100.0%)
ADR Z25.D, [Z17, Z25.D,LSL #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z27.D, [Z18, Z27.D,LSL #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z22.D, [Z19, Z22.D,LSL #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z25.D, [Z25, Z24.D,SXTW #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z27.D, [Z27, Z24.D,SXTW #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z22.D, [Z22, Z24.D,SXTW #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
LD1D {Z26.D}, P0/Z, [V25.D]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.33	0.33	0.33	0	0	9	1	vect (100.0%)
LD1D {Z27.D}, P0/Z, [V27.D]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.33	0.33	0.33	0	0	9	1	vect (100.0%)
LD1D {Z22.D}, P0/Z, [V22.D]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.33	0.33	0.33	0	0	9	1	vect (100.0%)
FMLA Z22.D, P0/M, Z26.D, Z27.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	4	0.25	vect (100.0%)
MUL Z26.D, Z7.D, Z23.D																					vect (100.0%)
MUL Z23.D, Z16.D, Z23.D																					vect (100.0%)
ADR Z26.D, [Z19, Z26.D,LSL #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z23.D, [Z20, Z23.D,LSL #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z26.D, [Z26, Z24.D,SXTW #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
ADR Z23.D, [Z23, Z24.D,SXTW #3]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	scal (50.0%)
LD1D {Z26.D}, P0/Z, [V26.D]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.33	0.33	0.33	0	0	9	1	vect (100.0%)
LD1D {Z23.D}, P0/Z, [V23.D]	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.33	0.33	0.33	0	0	9	1	vect (100.0%)
FSUB Z22.D, Z22.D, Z26.D	1	0	0	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	2	0.25	vect (100.0%)
FDIV Z22.D, P0/M, Z22.D, Z23.D	1	0	0	0	0	0	0	0	0	0.50	0	0.50	0	0	0	0	0	0	7-15	3.50-6.99	vect (100.0%)
ST1D {Z22.D}, P0, [V25.D]	1	0	0	0	0	0	0	0	0	0.50	0.50	0	0	0.50	0.50	0	0	0	2	1	vect (100.0%)
CBNZ X2, 41ef00 <_Z16advec_mom_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_S2_S2_S2_S2_S2_RNS_8Buffer1DIdEES5_iii.omp_outlined.22+0x140>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A

Report Configuration

Vectorization

Details

FMA

Matching between your loop (in the source code) and the binary loop

Arithmetic intensity

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Cycles and memory resources usage

ASM code

Vectorization

Details

FMA

Matching between your loop (in the source code) and the binary loop

Arithmetic intensity

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Cycles and memory resources usage

ASM code