OV - exec - Function loadAtomsBuffer

	Function: loadAtomsBuffer	Module: exec	Source: haloExchange.c:373-393	Coverage (incl. loops): 0.05% \| (excl. loops): 0.00%

/home/eoseret/qaas/qaas_runs/178-176-0594/intel/CoMD/build/CoMD/CoMD/src-openmp/haloExchange.c: 373 - 393

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

373:    int nCells = parms->nCells[face];

374:    int* cellList = parms->cellList[face];

375:    int nBuf = 0;

376:    for (int iCell=0; iCell<nCells; ++iCell)

377:    {

378:       int iBox = cellList[iCell];

379:       int iOff = iBox*MAXATOMS;

380:       for (int ii=iOff; ii<iOff+s->boxes->nAtoms[iBox]; ++ii)

381:       {

382:          buf[nBuf].gid  = s->atoms->gid[ii];

383:          buf[nBuf].type = s->atoms->iSpecies[ii];

384:          buf[nBuf].rx = s->atoms->r[ii][0] + shift[0];

385:          buf[nBuf].ry = s->atoms->r[ii][1] + shift[1];

386:          buf[nBuf].rz = s->atoms->r[ii][2] + shift[2];

387:          buf[nBuf].px = s->atoms->p[ii][0];

388:          buf[nBuf].py = s->atoms->p[ii][1];

389:          buf[nBuf].pz = s->atoms->p[ii][2];

390:          ++nBuf;

391:       }

392:    }

393:    return nBuf*sizeof(AtomMsg);

0x413840 LDR	W8, [X0, W2,SXTW #2]

0x413844 CMP	W8, #1

0x413848 B.LT	413978

0x41384c ADD	X11, X0, W2,SXTW #3

0x413850 LDP	X13, X14, [X1, #16]

0x413854 ORR	X10, XZR, XZR

0x413858 ORR	W9, WZR, WZR

0x41385c LDR	X12, [X11, #72]

0x413860 LDR	X11, [X11, #24]

0x413864 LDP	D2, D3, [X13, #72]

0x413868 LDP	D0, D1, [X12]

0x41386c FMUL	D1, D1, D3

0x413870 LDR	D3, [X13, #88]

0x413874 ADD	X13, X3, #24

0x413878 FMUL	D0, D0, D2

0x41387c LDR	D2, [X12, #16]

0x413880 LDR	X12, [X14, #120]

0x413884 MOVZ	W14, #56

0x413888 FMUL	D2, D2, D3

0x41388c B	4138b0

0x413890 HINT	#0

0x413894 HINT	#0

0x413898 HINT	#0

0x41389c HINT	#0

(50) 0x4138a0 ADD	W9, W9, W16

  (48) 0x4138a4 ADD	X10, X10, #1

  (48) 0x4138a8 CMP	X10, X8

  (48) 0x4138ac B.EQ	41396c

  (48) 0x4138b0 LDRSW	X15, [X11, X10,LSL #2]

  (48) 0x4138b4 LDR	W16, [X12, X15,LSL #2]

  (48) 0x4138b8 CMP	W16, #1

  (48) 0x4138bc B.LT	4138a4

(50) 0x4138c0 LDR	X0, [X1, #32]

(50) 0x4138c4 UBFM	W17, W15, #26, #25

(50) 0x4138c8 ORR	X16, XZR, XZR

(50) 0x4138cc SBFM	X18, X17, #0, #31

(50) 0x4138d0 ADD	X2, X18, W17,SXTW #1

(50) 0x4138d4 LDP	X4, X3, [X0, #8]

(50) 0x4138d8 LDP	X5, X0, [X0, #24]

(50) 0x4138dc ADD	X0, X0, X2,LSL #3

(50) 0x4138e0 ADD	X2, X5, X2,LSL #3

(50) 0x4138e4 SBFM	X5, X17, #62, #31

(50) 0x4138e8 ADD	X3, X3, X5

(50) 0x4138ec ADD	X4, X4, X5

(50) 0x4138f0 SMADDL	X5, W9, W14, X13

(50) 0x4138f4 ADD	X0, X0, #16

(50) 0x4138f8 ADD	X2, X2, #16

(50) 0x4138fc HINT	#0

  (49) 0x413900 LDUR	D3, [X2, #496]

  (49) 0x413904 LDR	W6, [X4, X16,LSL #2]

  (49) 0x413908 STUR	W6, [X5, #488]

  (49) 0x41390c LDR	W6, [X3, X16,LSL #2]

  (49) 0x413910 ADD	X16, X16, #1

  (49) 0x413914 FADD	D3, D0, D3

  (49) 0x413918 ADD	X7, X18, X16

  (49) 0x41391c STUR	D3, [X5, #496]

  (49) 0x413920 LDUR	D3, [X2, #504]

  (49) 0x413924 STUR	W6, [X5, #492]

  (49) 0x413928 LDRSW	X6, [X12, X15,LSL #2]

  (49) 0x41392c ADD	X6, X6, W17,SXTW

  (49) 0x413930 FADD	D3, D1, D3

  (49) 0x413934 CMP	X7, X6

  (49) 0x413938 STUR	D3, [X5, #504]

  (49) 0x41393c LDR	D3, [X2], #24

  (49) 0x413940 FADD	D3, D2, D3

  (49) 0x413944 STR	D3, [X5]

  (49) 0x413948 LDUR	D3, [X0, #496]

  (49) 0x41394c STR	D3, [X5, #8]

  (49) 0x413950 LDUR	D3, [X0, #504]

  (49) 0x413954 STR	D3, [X5, #16]

  (49) 0x413958 LDR	D3, [X0], #24

  (49) 0x41395c STR	D3, [X5, #24]

  (49) 0x413960 ADD	X5, X5, #56

  (49) 0x413964 B.LT	413900

(50) 0x413968 B	4138a0

0x41396c UBFM	W8, W9, #26, #25

0x413970 SUB	W0, W8, W9,LSL #3

0x413974 RET

0x413978 ORR	W0, WZR, WZR

0x41397c RET

Coverage (%)	Name	Source Location	Module
►98.25+	timestep	timestep.c:150	exec
○	main	CoMD.c:125	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	eam.c:831	exec
►1.75+	redistributeAtoms	timestep.c:150	exec
○	main	CoMD.c:207	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	eam.c:831	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 /

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

The code analyzed by CQA in that panel excludes loops and represents 0.00% of application time for run orig_0

Source file and lines	haloExchange.c:373-393
Module	exec

The function is defined in /home/eoseret/qaas/qaas_runs/178-176-0594/intel/CoMD/build/CoMD/CoMD/src-openmp/haloExchange.c:373-393.

Warnings:
Ignoring paths for analysis

gain
potential
hint
expert

Code clean check

Detected a slowdown caused by scalar integer instructions (typically used for address computation). By removing them, you can lower the cost of an iteration from 3.13 to 1.67 cycles (1.88x speedup).

Workaround

Try to reorganize arrays of structures to structures of arrays
Consider to permute loops (see vectorization gain report)

Vectorization

Your function is poorly vectorized. Only 29% of vector register length is used (average across all VPU instructions). By fully vectorizing your function, you can lower the cost of an iteration from 3.13 to 0.71 cycles (4.41x speedup).

Details

22% of VPU instructions are used in vector version (process two or more data elements in vector registers):

50% of VPU loads are used in vector version.
0% of VPU multiply instructions are used in vector version.
0% of VPU instructions that are not load, store, addition, subtraction nor multiply instructions are used in vector version.

Since your execution units are vector units, only a fully vectorized function can use their full power.

Workaround

Try another compiler or update/tune your current one
Make array accesses unit-stride:
- If your function streams arrays of structures (AoS), try to use structures of arrays instead (SoA): for(i) a[i].x = b[i].x; (slow, non stride 1) => for(i) a.x[i] = b.x[i]; (fast, stride 1)

No data for this section

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

The binary function is composed of 3 FP arithmetical operations:

3: multiply

The binary function is loading 3 bytes.

Arithmetic intensity

Arithmetic intensity is 1.00 FP operations per loaded or stored byte.

General properties

nb instructions	29
nb uops	25
loop length	116
used w registers	6
used x registers	9
used b registers	0
used h registers	0
used s registers	0
used d registers	4
used q registers	0
used v registers	0
used z registers	0
nb stack references	0

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	3.13 cycles
front end	3.13 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	2.00	2.00	2.25	2.25	2.25	2.25	0.75	0.75	0.75	0.75	3.00	3.00	3.00	0.00	0.00
cycles	2.00	2.00	2.25	2.25	2.25	2.25	0.75	0.75	0.75	0.75	3.00	3.00	3.00	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	3.13
Dispatch	3.00
Overall L1	3.13

Vectorization ratios

INT

all	33%
load	50%
store	NA (no store vectorizable/vectorized instructions)
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	NA (no add-sub vectorizable/vectorized instructions)
fma	NA (no fma vectorizable/vectorized instructions)
other	0%

all	0%
load	NA (no load vectorizable/vectorized instructions)
store	NA (no store vectorizable/vectorized instructions)
mul	0%
add-sub	NA (no add-sub vectorizable/vectorized instructions)
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	22%
load	50%
store	NA (no store vectorizable/vectorized instructions)
mul	0%
add-sub	NA (no add-sub vectorizable/vectorized instructions)
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	0%

Vector efficiency ratios

INT

all	31%
load	37%
store	NA (no store vectorizable/vectorized instructions)
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	NA (no add-sub vectorizable/vectorized instructions)
fma	NA (no fma vectorizable/vectorized instructions)
other	18%

all	25%
load	NA (no load vectorizable/vectorized instructions)
store	NA (no store vectorizable/vectorized instructions)
mul	25%
add-sub	NA (no add-sub vectorizable/vectorized instructions)
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	29%
load	37%
store	NA (no store vectorizable/vectorized instructions)
mul	25%
add-sub	NA (no add-sub vectorizable/vectorized instructions)
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	18%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 3.13 cycles. At this rate:

1% of peak load performance is reached (0.96 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))

Front-end bottlenecks

Performance is limited by instruction throughput (loading/decoding program instructions to execution core) (front-end is a bottleneck).

ASM code

In the binary file, the address of the function is: 413840

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	Latency	Recip. throughput	Vectorization
LDR W8, [X0, W2,SXTW #2]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	N/A
CMP W8, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33	scal (12.5%)
B.LT 413978 <loadAtomsBuffer+0x138>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
ADD X11, X0, W2,SXTW #3	1	0	0	0	0	0.50	0.50	0	0	0	0	0	0	0	0	0	2	0.50	N/A
LDP X13, X14, [X1, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	N/A
ORR X10, XZR, XZR	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (25.0%)
ORR W9, WZR, WZR	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
LDR X12, [X11, #72]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	N/A
LDR X11, [X11, #24]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	N/A
LDP D2, D3, [X13, #72]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	6	0.33	vect (50.0%)
LDP D0, D1, [X12]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	6	0.33	vect (50.0%)
FMUL D1, D1, D3	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	3	0.25	scal (25.0%)
LDR D3, [X13, #88]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	6	0.33	scal (25.0%)
ADD X13, X3, #24	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
FMUL D0, D0, D2	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	3	0.25	scal (25.0%)
LDR D2, [X12, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	6	0.33	scal (25.0%)
LDR X12, [X14, #120]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	N/A
MOVZ W14, #56	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
FMUL D2, D2, D3	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	3	0.25	scal (25.0%)
B 4138b0 <loadAtomsBuffer+0x70>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
HINT #0																			N/A
HINT #0																			N/A
HINT #0																			N/A
HINT #0																			N/A
UBFM W8, W9, #26, #25	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
SUB W0, W8, W9,LSL #3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
RET	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
ORR W0, WZR, WZR	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
RET	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A

The code analyzed by CQA in that panel excludes loops and represents 0.00% of application time for run orig_0

Source file and lines	haloExchange.c:373-393
Module	exec

The function is defined in /home/eoseret/qaas/qaas_runs/178-176-0594/intel/CoMD/build/CoMD/CoMD/src-openmp/haloExchange.c:373-393.

Warnings:
Ignoring paths for analysis

gain
potential
hint
expert

Code clean check

Detected a slowdown caused by scalar integer instructions (typically used for address computation). By removing them, you can lower the cost of an iteration from 3.13 to 1.67 cycles (1.88x speedup).

Workaround

Try to reorganize arrays of structures to structures of arrays
Consider to permute loops (see vectorization gain report)

Vectorization

Details

22% of VPU instructions are used in vector version (process two or more data elements in vector registers):

50% of VPU loads are used in vector version.
0% of VPU multiply instructions are used in vector version.
0% of VPU instructions that are not load, store, addition, subtraction nor multiply instructions are used in vector version.

Since your execution units are vector units, only a fully vectorized function can use their full power.

Workaround

Try another compiler or update/tune your current one
Make array accesses unit-stride:
- If your function streams arrays of structures (AoS), try to use structures of arrays instead (SoA): for(i) a[i].x = b[i].x; (slow, non stride 1) => for(i) a.x[i] = b.x[i]; (fast, stride 1)

No data for this section

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

The binary function is composed of 3 FP arithmetical operations:

3: multiply

The binary function is loading 3 bytes.

Arithmetic intensity

Arithmetic intensity is 1.00 FP operations per loaded or stored byte.

General properties

nb instructions	29
nb uops	25
loop length	116
used w registers	6
used x registers	9
used b registers	0
used h registers	0
used s registers	0
used d registers	4
used q registers	0
used v registers	0
used z registers	0
nb stack references	0

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	3.13 cycles
front end	3.13 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	2.00	2.00	2.25	2.25	2.25	2.25	0.75	0.75	0.75	0.75	3.00	3.00	3.00	0.00	0.00
cycles	2.00	2.00	2.25	2.25	2.25	2.25	0.75	0.75	0.75	0.75	3.00	3.00	3.00	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	3.13
Dispatch	3.00
Overall L1	3.13

Vectorization ratios

INT

all	33%
load	50%
store	NA (no store vectorizable/vectorized instructions)
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	NA (no add-sub vectorizable/vectorized instructions)
fma	NA (no fma vectorizable/vectorized instructions)
other	0%

all	0%
load	NA (no load vectorizable/vectorized instructions)
store	NA (no store vectorizable/vectorized instructions)
mul	0%
add-sub	NA (no add-sub vectorizable/vectorized instructions)
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	22%
load	50%
store	NA (no store vectorizable/vectorized instructions)
mul	0%
add-sub	NA (no add-sub vectorizable/vectorized instructions)
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	0%

Vector efficiency ratios

INT

all	31%
load	37%
store	NA (no store vectorizable/vectorized instructions)
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	NA (no add-sub vectorizable/vectorized instructions)
fma	NA (no fma vectorizable/vectorized instructions)
other	18%

all	25%
load	NA (no load vectorizable/vectorized instructions)
store	NA (no store vectorizable/vectorized instructions)
mul	25%
add-sub	NA (no add-sub vectorizable/vectorized instructions)
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	29%
load	37%
store	NA (no store vectorizable/vectorized instructions)
mul	25%
add-sub	NA (no add-sub vectorizable/vectorized instructions)
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	18%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 3.13 cycles. At this rate:

1% of peak load performance is reached (0.96 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))

Front-end bottlenecks

Performance is limited by instruction throughput (loading/decoding program instructions to execution core) (front-end is a bottleneck).

ASM code

In the binary file, the address of the function is: 413840

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	Latency	Recip. throughput	Vectorization
LDR W8, [X0, W2,SXTW #2]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	N/A
CMP W8, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33	scal (12.5%)
B.LT 413978 <loadAtomsBuffer+0x138>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
ADD X11, X0, W2,SXTW #3	1	0	0	0	0	0.50	0.50	0	0	0	0	0	0	0	0	0	2	0.50	N/A
LDP X13, X14, [X1, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	N/A
ORR X10, XZR, XZR	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (25.0%)
ORR W9, WZR, WZR	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
LDR X12, [X11, #72]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	N/A
LDR X11, [X11, #24]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	N/A
LDP D2, D3, [X13, #72]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	6	0.33	vect (50.0%)
LDP D0, D1, [X12]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	6	0.33	vect (50.0%)
FMUL D1, D1, D3	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	3	0.25	scal (25.0%)
LDR D3, [X13, #88]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	6	0.33	scal (25.0%)
ADD X13, X3, #24	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
FMUL D0, D0, D2	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	3	0.25	scal (25.0%)
LDR D2, [X12, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	6	0.33	scal (25.0%)
LDR X12, [X14, #120]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	N/A
MOVZ W14, #56	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
FMUL D2, D2, D3	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	3	0.25	scal (25.0%)
B 4138b0 <loadAtomsBuffer+0x70>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
HINT #0																			N/A
HINT #0																			N/A
HINT #0																			N/A
HINT #0																			N/A
UBFM W8, W9, #26, #25	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
SUB W0, W8, W9,LSL #3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
RET	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
ORR W0, WZR, WZR	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
RET	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A

Name	Coverage (%)	Time (s)
▼loadAtomsBuffer–	0.05	0.01
▼Loop 50 - haloExchange.c:376-389 - exec–	0.00	0.00
○Loop 49 - haloExchange.c:380-389 - exec	0.04	0.55
○Loop 48 - haloExchange.c:376-380 - exec	0.00	0.03

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

Arithmetic intensity

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Cycles and memory resources usage

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ASM code

Code clean check

Workaround

Vectorization

Details

Workaround

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

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