OV - exec - Loop 72

	Loop Id: 72	Module: exec	Source: advec_cell_kernel.f90:188-193	Coverage: 1.04%

  (73) 0x419044 ORR	W6, WZR, WZR

  (73) 0x419048 ADD	W6, W6, W12

  (73) 0x41904c SBFM	X6, X6, #0, #31

  (73) 0x419050 SUB	X6, X6, X24

  (73) 0x419054 ADD	X4, X6, X4

  (73) 0x419058 LDR	D1, [X2, X6,LSL #3]

  (73) 0x41905c LDR	D0, [X26, X4,LSL #3]

  (73) 0x419060 FADD	D0, D1, D0

  (73) 0x419064 LDR	D1, [X27, X4,LSL #3]

  (73) 0x419068 FSUB	D0, D0, S1

  (73) 0x41906c STR	D0, [X1, X6,LSL #3]

  (73) 0x419070 LDR	D0, [X3, X6,LSL #3]

  (73) 0x419074 STR	D0, [X5, X6,LSL #3]

  (73) 0x419078 HINT	#0

  (73) 0x41907c HINT	#0

  (73) 0x419080 CMP	W10, W8

  (73) 0x419084 ADD	W10, W10, #1

  (73) 0x419088 B.EQ	4191e0

  (73) 0x41908c CBZ	W15, 419080

  (73) 0x419090 LDR	X3, [SP, #120]

  (73) 0x419094 ADD	W1, W9, W10

  (73) 0x419098 CMP	W13, W12

  (73) 0x41909c SUB	W6, W11, #2

  (73) 0x4190a0 SUB	X7, XZR, X17

  (73) 0x4190a4 ORR	P1.B, P0/Z, P0.B, P0.B

  (73) 0x4190a8 ADD	W2, W1, #1

  (73) 0x4190ac SBFM	X1, X1, #0, #31

  (73) 0x4190b0 SBFM	X2, X2, #0, #31

  (73) 0x4190b4 SUB	X1, X1, X3

  (73) 0x4190b8 SUB	X2, X2, X3

  (73) 0x4190bc LDP	X3, X5, [SP, #128]

  (73) 0x4190c0 MUL	X4, X1, X5

  (73) 0x4190c4 MUL	X2, X2, X5

  (73) 0x4190c8 MUL	X5, X1, X3

  (73) 0x4190cc ADD	X2, X27, X2,LSL #3

  (73) 0x4190d0 ADD	X1, X21, X5,LSL #3

  (73) 0x4190d4 ADD	X3, X26, X4,LSL #3

  (73) 0x4190d8 ADD	X5, X30, X5,LSL #3

  (73) 0x4190dc B.GE	419180

  (73) 0x4190e0 CMP	W16, W11

  (73) 0x4190e4 B.EQ	419044

  (73) 0x4190e8 SUB	W7, W11, #1

  (73) 0x4190ec ORR	W6, WZR, WZR

  (73) 0x4190f0 HINT	#0

  (73) 0x4190f4 HINT	#0

  (73) 0x4190f8 HINT	#0

  (73) 0x4190fc HINT	#0

    (74) 0x419100 SUB	W19, W7, #1

    (74) 0x419104 SBFM	X23, X7, #0, #31

    (74) 0x419108 ADD	W6, W6, #2

    (74) 0x41910c ADD	W7, W7, #2

    (74) 0x419110 SBFM	X19, X19, #0, #31

    (74) 0x419114 SUB	X23, X23, X24

    (74) 0x419118 CMP	W0, W6

    (74) 0x41911c SUB	X19, X19, X24

    (74) 0x419120 ADD	X25, X23, X4

    (74) 0x419124 LDR	D0, [X2, X23,LSL #3]

    (74) 0x419128 LDR	D2, [X3, X19,LSL #3]

    (74) 0x41912c ADD	X30, X19, X4

    (74) 0x419130 LDR	D1, [X2, X19,LSL #3]

    (74) 0x419134 STR	D2, [X5, X19,LSL #3]

    (74) 0x419138 LDR	D2, [X26, X25,LSL #3]

    (74) 0x41913c FADD	D0, D0, D2

    (74) 0x419140 LDR	D2, [X26, X30,LSL #3]

    (74) 0x419144 FADD	D1, D1, D2

    (74) 0x419148 LDR	D2, [X27, X25,LSL #3]

    (74) 0x41914c FSUB	D0, D0, S2

    (74) 0x419150 LDR	D2, [X27, X30,LSL #3]

    (74) 0x419154 FSUB	D1, D1, S2

    (74) 0x419158 STR	D1, [X1, X19,LSL #3]

    (74) 0x41915c STR	D0, [X1, X23,LSL #3]

    (74) 0x419160 LDR	D0, [X3, X23,LSL #3]

    (74) 0x419164 STR	D0, [X5, X23,LSL #3]

    (74) 0x419168 B.NE	419100

  (73) 0x41916c LDR	X30, [SP, #112]

  (73) 0x419170 TBNZ	W14, #0, 419048

  (73) 0x419174 B	419080

0x419180 SBFM	X19, X6, #0, #31

0x419184 ADD	W7, W7, W17

0x419188 ADD	W6, W6, W17

0x41918c SUB	X19, X19, X24

0x419190 ADD	X23, X19, X4

0x419194 LD1D	{Z1.D}, P1/Z, [X2, X19,LSL #3]

0x419198 LD1D	{Z0.D}, P1/Z, [X26, X23,LSL #3]

0x41919c FADD	Z0.D, Z1.D, Z0.D

0x4191a0 LD1D	{Z1.D}, P1/Z, [X27, X23,LSL #3]

0x4191a4 FSUB	Z0.D, Z0.D, Z1.D

0x4191a8 ST1D	{Z0.D}, P1, [X1, X19,LSL #3]

0x4191ac LD1D	{Z0.D}, P1/Z, [X3, X19,LSL #3]

0x4191b0 ST1D	{Z0.D}, P1, [X5, X19,LSL #3]

0x4191b4 WHILELO	P1.D, W7, W18

0x4191b8 B.MI	419180

0x4191bc B	419080

/home/eoseret/qaas/qaas_runs/178-231-1255/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/advec_cell_kernel.f90: 188 - 193

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

188:         !$OMP DO

189:         DO k=y_min-2,y_max+2

190:         !$OMP SIMD

191:           DO j=x_min-2,x_max+2

192:             pre_vol(j,k)=volume(j,k)+vol_flux_y(j  ,k+1)-vol_flux_y(j,k)

193:             post_vol(j,k)=volume(j,k)

Coverage (%)	Name	Source Location	Module
►98.40+	__kmp_invoke_microtask		libomp.so
○	__kmp_invoke_task_func		libomp.so
○	__kmp_launch_thread		libomp.so
○	__kmp_launch_worker(void*)		libomp.so
○	start_thread		libc.so.6
○	thread_start		libc.so.6
►1.60+	__kmp_invoke_microtask		libomp.so
○	__kmp_invoke_task_func		libomp.so
○	__kmp_fork_call		libomp.so
○	__kmpc_fork_call		libomp.so
○	advec_cell_kernel	advec_cell_kernel.f90:270	exec
○	advec_cell_driver	advec_cell_driver.f90:36	exec
○	advection	advection.f90:89	exec
○	hydro	hydro.f90:64	exec
○	main	clover_leaf.f90:76	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start		exec

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	1.00
CQA speedup if no inter-iteration dependency	NA
CQA speedup if next bottleneck killed	1.50
Bottlenecks	P10, P11,
Function	_QMadvec_cell_kernel_modulePadvec_cell_kernel..omp_par
Source	advec_cell_kernel.f90:190-193
Source loop unroll info	NA
Source loop unroll confidence level	NA
Unroll/vectorization loop type	NA
Unroll factor	NA
CQA cycles	3.00
CQA cycles if no scalar integer	3.00
CQA cycles if FP arith vectorized	3.00
CQA cycles if fully vectorized	3.00
Front-end cycles	2.00
P0 cycles	1.00
P1 cycles	1.00
P2 cycles	1.50
P3 cycles	1.50
P4 cycles	1.50
P5 cycles	1.50
P6 cycles	1.00
P7 cycles	1.00
P8 cycles	1.00
P9 cycles	1.00
P10 cycles	3.00
P11 cycles	3.00
P12 cycles	0.00
P13 cycles	0.00
P14 cycles	0.00
DIV/SQRT cycles	0.00
Inter-iter dependencies cycles	NA
FE+BE cycles (UFS)	NA
Stall cycles (UFS)	NA
Nb insns	16.00
Nb uops	16.00
Nb loads	NA
Nb stores	2.00
Nb stack references	0.00
FLOP/cycle	2.67
Nb FLOP add-sub	8.00
Nb FLOP mul	0.00
Nb FLOP fma	0.00
Nb FLOP div	0.00
Nb FLOP rcp	0.00
Nb FLOP sqrt	0.00
Nb FLOP rsqrt	0.00
Bytes/cycle	64.00
Bytes prefetched	0.00
Bytes loaded	128.00
Bytes stored	64.00
Stride 0	NA
Stride 1	NA
Stride n	NA
Stride unknown	NA
Stride indirect	NA
Vectorization ratio all	88.89
Vectorization ratio load	100.00
Vectorization ratio store	100.00
Vectorization ratio mul	NA
Vectorization ratio add_sub	66.67
Vectorization ratio fma	NA
Vectorization ratio div_sqrt	NA
Vectorization ratio other	NA
Vector-efficiency ratio all	90.28
Vector-efficiency ratio load	100.00
Vector-efficiency ratio store	100.00
Vector-efficiency ratio mul	NA
Vector-efficiency ratio add_sub	70.83
Vector-efficiency ratio fma	NA
Vector-efficiency ratio div_sqrt	NA
Vector-efficiency ratio other	NA

Metric	Value
CQA speedup if no scalar integer	1.00
CQA speedup if FP arith vectorized	1.00
CQA speedup if fully vectorized	1.00
CQA speedup if no inter-iteration dependency	NA
CQA speedup if next bottleneck killed	1.50
Bottlenecks	P10, P11,
Function	_QMadvec_cell_kernel_modulePadvec_cell_kernel..omp_par
Source	advec_cell_kernel.f90:190-193
Source loop unroll info	NA
Source loop unroll confidence level	NA
Unroll/vectorization loop type	NA
Unroll factor	NA
CQA cycles	3.00
CQA cycles if no scalar integer	3.00
CQA cycles if FP arith vectorized	3.00
CQA cycles if fully vectorized	3.00
Front-end cycles	2.00
P0 cycles	1.00
P1 cycles	1.00
P2 cycles	1.50
P3 cycles	1.50
P4 cycles	1.50
P5 cycles	1.50
P6 cycles	1.00
P7 cycles	1.00
P8 cycles	1.00
P9 cycles	1.00
P10 cycles	3.00
P11 cycles	3.00
P12 cycles	0.00
P13 cycles	0.00
P14 cycles	0.00
DIV/SQRT cycles	0.00
Inter-iter dependencies cycles	NA
FE+BE cycles (UFS)	NA
Stall cycles (UFS)	NA
Nb insns	16.00
Nb uops	16.00
Nb loads	NA
Nb stores	2.00
Nb stack references	0.00
FLOP/cycle	2.67
Nb FLOP add-sub	8.00
Nb FLOP mul	0.00
Nb FLOP fma	0.00
Nb FLOP div	0.00
Nb FLOP rcp	0.00
Nb FLOP sqrt	0.00
Nb FLOP rsqrt	0.00
Bytes/cycle	64.00
Bytes prefetched	0.00
Bytes loaded	128.00
Bytes stored	64.00
Stride 0	NA
Stride 1	NA
Stride n	NA
Stride unknown	NA
Stride indirect	NA
Vectorization ratio all	88.89
Vectorization ratio load	100.00
Vectorization ratio store	100.00
Vectorization ratio mul	NA
Vectorization ratio add_sub	66.67
Vectorization ratio fma	NA
Vectorization ratio div_sqrt	NA
Vectorization ratio other	NA
Vector-efficiency ratio all	90.28
Vector-efficiency ratio load	100.00
Vector-efficiency ratio store	100.00
Vector-efficiency ratio mul	NA
Vector-efficiency ratio add_sub	70.83
Vector-efficiency ratio fma	NA
Vector-efficiency ratio div_sqrt	NA
Vector-efficiency ratio other	NA

Path /

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

Function	_QMadvec_cell_kernel_modulePadvec_cell_kernel..omp_par
Source file and lines	advec_cell_kernel.f90:188-193
Module	exec

The loop is defined in /home/eoseret/qaas/qaas_runs/178-231-1255/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/advec_cell_kernel.f90:188-193.

Analyzed code is defined in /home/eoseret/qaas/qaas_runs/178-231-1255/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/advec_cell_kernel.f90:190-193.

Warnings:

Non-innermost loop: analyzing only self part (ignoring child loops).
Ignoring paths for analysis
Failed to get the number of paths
RecMII not computed since number of paths is unknown or > max_paths
Streams not analyzed since number of paths is unknown or > max_paths

gain
potential
hint
expert

Vectorization

Your loop is partially vectorized. 90% of vector register length is used (average across all VPU instructions).

Details

88% of VPU instructions are used in vector version (process two or more data elements in vector registers):

66% of VPU addition or subtraction instructions are used in vector version.

No data for this section

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

The binary loop is composed of 8 FP arithmetical operations:

8: addition or subtraction

The binary loop is loading 128 bytes. The binary loop is storing 64 bytes.

Arithmetic intensity

Arithmetic intensity is 0.04 FP operations per loaded or stored byte.

General properties

nb instructions	16
nb uops	16
loop length	64
used w registers	4
used x registers	11
used b registers	0
used h registers	0
used s registers	0
used d registers	0
used q registers	0
used v registers	0
used z registers	2
nb stack references	0

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	2.00 cycles
front end	2.00 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	1.00	1.00	1.50	1.50	1.50	1.50	1.00	1.00	1.00	1.00	3.00	3.00	0.00	0.00	0.00
cycles	1.00	1.00	1.50	1.50	1.50	1.50	1.00	1.00	1.00	1.00	3.00	3.00	0.00	0.00	0.00

Execution ports to units layout:

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

Cycles executing div or sqrt instructions

Cycles summary

Front-end	2.00
Dispatch	3.00
Overall L1	3.00

Vectorization ratios

INT

all	85%
load	100%
store	100%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	0%
fma	NA (no fma vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

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	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

INT+FP

all	88%
load	100%
store	100%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	66%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

Vector efficiency ratios

INT

all	87%
load	100%
store	100%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	12%
fma	NA (no fma vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

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	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

INT+FP

all	90%
load	100%
store	100%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	70%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each iteration of the binary loop takes 3.00 cycles. At this rate:

44% of peak load performance is reached (42.67 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
44% of peak store performance is reached (21.33 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

Front-end bottlenecks

Found no such bottlenecks.

ASM code

In the binary file, the address of the loop is: 419180

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	Latency	Recip. throughput	Vectorization
SBFM X19, X6, #0, #31	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	N/A
ADD W7, W7, W17	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	N/A
ADD W6, W6, W17	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	scal (12.5%)
SUB X19, X19, X24	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	N/A
ADD X23, X19, X4	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	N/A
LD1D {Z1.D}, P1/Z, [X2, X19,LSL #3]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	6	0.50	vect (100.0%)
LD1D {Z0.D}, P1/Z, [X26, X23,LSL #3]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	6	0.50	vect (100.0%)
FADD Z0.D, Z1.D, Z0.D	1	0	0	0	0	0	0	0.50	0.50	0	0	0	0	2	0.50	vect (100.0%)
LD1D {Z1.D}, P1/Z, [X27, X23,LSL #3]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	6	0.50	vect (100.0%)
FSUB Z0.D, Z0.D, Z1.D	1	0	0	0	0	0	0	0.50	0.50	0	0	0	0	2	0.50	vect (100.0%)
ST1D {Z0.D}, P1, [X1, X19,LSL #3]	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.50	0.50	2	0.50	vect (100.0%)
LD1D {Z0.D}, P1/Z, [X3, X19,LSL #3]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	6	0.50	vect (100.0%)
ST1D {Z0.D}, P1, [X5, X19,LSL #3]	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.50	0.50	2	0.50	vect (100.0%)
WHILELO P1.D, W7, W18	1	0	0	0	0	1	0	0	0	0	0	0	0	3	2	N/A
B.MI 419180 <_QMadvec_cell_kernel_modulePadvec_cell_kernel..omp_par+0x6a0>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
B 419080 <_QMadvec_cell_kernel_modulePadvec_cell_kernel..omp_par+0x5a0>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A

Function	_QMadvec_cell_kernel_modulePadvec_cell_kernel..omp_par
Source file and lines	advec_cell_kernel.f90:188-193
Module	exec

Non-innermost loop: analyzing only self part (ignoring child loops).
Ignoring paths for analysis
Failed to get the number of paths
RecMII not computed since number of paths is unknown or > max_paths
Streams not analyzed since number of paths is unknown or > max_paths

gain
potential
hint
expert

Vectorization

Your loop is partially vectorized. 90% of vector register length is used (average across all VPU instructions).

Details

88% of VPU instructions are used in vector version (process two or more data elements in vector registers):

66% of VPU addition or subtraction instructions are used in vector version.

No data for this section

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

The binary loop is composed of 8 FP arithmetical operations:

8: addition or subtraction

The binary loop is loading 128 bytes. The binary loop is storing 64 bytes.

Arithmetic intensity

Arithmetic intensity is 0.04 FP operations per loaded or stored byte.

General properties

nb instructions	16
nb uops	16
loop length	64
used w registers	4
used x registers	11
used b registers	0
used h registers	0
used s registers	0
used d registers	0
used q registers	0
used v registers	0
used z registers	2
nb stack references	0

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	2.00 cycles
front end	2.00 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	1.00	1.00	1.50	1.50	1.50	1.50	1.00	1.00	1.00	1.00	3.00	3.00	0.00	0.00	0.00
cycles	1.00	1.00	1.50	1.50	1.50	1.50	1.00	1.00	1.00	1.00	3.00	3.00	0.00	0.00	0.00

Execution ports to units layout:

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

Cycles executing div or sqrt instructions

Cycles summary

Front-end	2.00
Dispatch	3.00
Overall L1	3.00

Vectorization ratios

INT

all	85%
load	100%
store	100%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	0%
fma	NA (no fma vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

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	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

INT+FP

all	88%
load	100%
store	100%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	66%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

Vector efficiency ratios

INT

all	87%
load	100%
store	100%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	12%
fma	NA (no fma vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

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	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

INT+FP

all	90%
load	100%
store	100%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	70%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each iteration of the binary loop takes 3.00 cycles. At this rate:

44% of peak load performance is reached (42.67 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
44% of peak store performance is reached (21.33 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

Front-end bottlenecks

Found no such bottlenecks.

ASM code

In the binary file, the address of the loop is: 419180

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	Latency	Recip. throughput	Vectorization
SBFM X19, X6, #0, #31	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	N/A
ADD W7, W7, W17	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	N/A
ADD W6, W6, W17	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	scal (12.5%)
SUB X19, X19, X24	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	N/A
ADD X23, X19, X4	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	N/A
LD1D {Z1.D}, P1/Z, [X2, X19,LSL #3]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	6	0.50	vect (100.0%)
LD1D {Z0.D}, P1/Z, [X26, X23,LSL #3]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	6	0.50	vect (100.0%)
FADD Z0.D, Z1.D, Z0.D	1	0	0	0	0	0	0	0.50	0.50	0	0	0	0	2	0.50	vect (100.0%)
LD1D {Z1.D}, P1/Z, [X27, X23,LSL #3]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	6	0.50	vect (100.0%)
FSUB Z0.D, Z0.D, Z1.D	1	0	0	0	0	0	0	0.50	0.50	0	0	0	0	2	0.50	vect (100.0%)
ST1D {Z0.D}, P1, [X1, X19,LSL #3]	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.50	0.50	2	0.50	vect (100.0%)
LD1D {Z0.D}, P1/Z, [X3, X19,LSL #3]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	6	0.50	vect (100.0%)
ST1D {Z0.D}, P1, [X5, X19,LSL #3]	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.50	0.50	2	0.50	vect (100.0%)
WHILELO P1.D, W7, W18	1	0	0	0	0	1	0	0	0	0	0	0	0	3	2	N/A
B.MI 419180 <_QMadvec_cell_kernel_modulePadvec_cell_kernel..omp_par+0x6a0>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
B 419080 <_QMadvec_cell_kernel_modulePadvec_cell_kernel..omp_par+0x5a0>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A

Report Configuration

Vectorization

Details

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

Arithmetic intensity

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Vector efficiency ratios

Cycles and memory resources usage

Front-end bottlenecks

ASM code

Vectorization

Details

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

Arithmetic intensity

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Vector efficiency ratios

Cycles and memory resources usage

Front-end bottlenecks

ASM code