OV - exec - Function .omp

	Function: .omp_outlined..23	Module: exec	Source: par_coarsen.c:2516-2576	Coverage: 0.08%

/home/hbollore/qaas-runs/171-233-5044/intel/AMG/build/AMG/AMG/parcsr_ls/par_coarsen.c: 2516 - 2576

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

2516: #pragma omp parallel private(ig,i)

2517: #endif

2518:      {

2519:         HYPRE_Int private_graph_size_cnt = 0;

2520:         HYPRE_Int private_graph_offd_size_cnt = 0;

2521:

2522:         HYPRE_Int ig_begin, ig_end;

2523:         hypre_GetSimpleThreadPartition(&ig_begin, &ig_end, graph_size);

2524:

2525:         HYPRE_Int ig_offd_begin, ig_offd_end;

2526:         hypre_GetSimpleThreadPartition(&ig_offd_begin, &ig_offd_end, graph_offd_size);

2527:

2528:         for (ig = ig_begin; ig < ig_end; ig++)

2529:         {

2530:            i = graph_array[ig];

2531:

2532:            if (CF_marker[i]!=0) /* C or F point */

2533:            {

2534:               /* the independent set subroutine needs measure 0 for

2535:                  removed nodes */

2536:               measure_array[i] = 0;

2537:            }

2538:            else

2539:            {

2540:               private_graph_size_cnt++;

2541:            }

2542:         }

2543:

2544:         for (ig = ig_offd_begin; ig < ig_offd_end; ig++)

2545:         {

2546:            i = graph_array_offd[ig];

2547:

2548:            if (CF_marker_offd[i]!=0) /* C of F point */

2549:            {

2550:               /* the independent set subroutine needs measure 0 for

2551:                  removed nodes */

2552:               measure_array[i + num_variables] = 0;

2553:            }

2554:            else

2555:            {

2556:               private_graph_offd_size_cnt++;

2557:            }

2558:         }

2559:

2560:         hypre_prefix_sum_pair(&private_graph_size_cnt, &graph_size, &private_graph_offd_size_cnt, &graph_offd_size, prefix_sum_workspace);

2561:

2562:         for (ig = ig_begin; ig < ig_end; ig++)

2563:         {

2564:            i = graph_array[ig];

2565:            if (CF_marker[i]==0)

2566:            {

2567:               graph_array2[private_graph_size_cnt++] = i;

2568:            }

2569:         }

2570:

2571:         for (ig = ig_offd_begin; ig < ig_offd_end; ig++)

2572:         {

2573:            i = graph_array_offd[ig];

2574:            if (CF_marker_offd[i]==0)

2575:            {

2576:               graph_array_offd2[private_graph_offd_size_cnt++] = i;

0x421e50 SUB	SP, SP, #128

0x421e54 STP	X29, X30, [SP, #48]

0x421e58 STP	X26, X25, [SP, #64]

0x421e5c STP	X24, X23, [SP, #80]

0x421e60 STP	X22, X21, [SP, #96]

0x421e64 STP	X20, X19, [SP, #112]

0x421e68 ADD	X29, SP, #48

0x421e6c ORR	X23, XZR, X2

0x421e70 LDR	X2, [X2]

0x421e74 LDR	X26, [X29, #96]

0x421e78 LDR	X25, [X29, #80]

0x421e7c ADD	X0, SP, #24

0x421e80 ADD	X1, SP, #16

0x421e84 ORR	X19, XZR, X7

0x421e88 ORR	X24, XZR, X6

0x421e8c STP	XZR, XZR, [X29, #1008]

0x421e90 ORR	X20, XZR, X5

0x421e94 ORR	X21, XZR, X4

0x421e98 ORR	X22, XZR, X3

0x421e9c BL	4b0600

0x421ea0 LDR	X2, [X22]

0x421ea4 ADD	X0, SP, #8

0x421ea8 ADD	X1, SP, #0

0x421eac BL	4b0600

0x421eb0 LDP	X11, X12, [SP, #16]

0x421eb4 CMP	X12, X11

0x421eb8 B.GE	421f10

0x421ebc LDR	X13, [X21]

0x421ec0 LDR	X9, [X20]

0x421ec4 LDR	X10, [X24]

0x421ec8 ORR	X8, XZR, XZR

0x421ecc SUB	X11, X11, X12

0x421ed0 ADD	X12, X13, X12,LSL #3

0x421ed4 B	421ef4

0x421ed8 HINT	#0

0x421edc HINT	#0

(598) 0x421ee0 ADD	X8, X8, #1

(598) 0x421ee4 STUR	X8, [X29, #504]

(598) 0x421ee8 SUBS	X11, X11, #1

(598) 0x421eec ADD	X12, X12, #8

(598) 0x421ef0 B.EQ	421f10

  (599) 0x421ef4 LDR	X13, [X12]

  (599) 0x421ef8 LDR	X14, [X9, X13,LSL #3]

  (599) 0x421efc CBZ	X14, 421ee0

  (599) 0x421f00 STR	XZR, [X10, X13,LSL #3]

  (599) 0x421f04 SUBS	X11, X11, #1

  (599) 0x421f08 ADD	X12, X12, #8

  (599) 0x421f0c B.NE	421ef4

0x421f10 LDP	X11, X12, [SP]

0x421f14 CMP	X12, X11

0x421f18 B.GE	421f74

0x421f1c LDR	X10, [X29, #88]

0x421f20 LDR	X13, [X19]

0x421f24 LDR	X14, [X24]

0x421f28 ORR	X8, XZR, XZR

0x421f2c SUB	X11, X11, X12

0x421f30 ADD	X12, X13, X12,LSL #3

0x421f34 LDR	X10, [X10]

0x421f38 LDR	X9, [X25]

0x421f3c ADD	X10, X14, X10,LSL #3

0x421f40 B	421f58

(597) 0x421f44 ADD	X8, X8, #1

(597) 0x421f48 STUR	X8, [X29, #496]

(597) 0x421f4c SUBS	X11, X11, #1

(597) 0x421f50 ADD	X12, X12, #8

(597) 0x421f54 B.EQ	421f74

(597) 0x421f58 LDR	X13, [X12]

(597) 0x421f5c LDR	X14, [X9, X13,LSL #3]

(597) 0x421f60 CBZ	X14, 421f44

(597) 0x421f64 STR	XZR, [X10, X13,LSL #3]

(597) 0x421f68 SUBS	X11, X11, #1

(597) 0x421f6c ADD	X12, X12, #8

(597) 0x421f70 B.NE	421f58

0x421f74 LDR	X4, [X26]

0x421f78 ORR	X1, XZR, X23

0x421f7c ORR	X3, XZR, X22

0x421f80 SUB	X0, X29, #8

0x421f84 SUB	X2, X29, #16

0x421f88 BL	4b1270

0x421f8c LDP	X9, X8, [SP, #16]

0x421f90 CMP	X8, X9

0x421f94 B.GE	421fdc

0x421f98 LDR	X12, [X29, #104]

0x421f9c LDR	X10, [X21]

0x421fa0 LDR	X11, [X20]

0x421fa4 LDR	X12, [X12]

0x421fa8 B	421fb8

(596) 0x421fac ADD	X8, X8, #1

(596) 0x421fb0 CMP	X8, X9

(596) 0x421fb4 B.GE	421fdc

(596) 0x421fb8 LDR	X13, [X10, X8,LSL #3]

(596) 0x421fbc LDR	X14, [X11, X13,LSL #3]

(596) 0x421fc0 CBNZ	X14, 421fac

(596) 0x421fc4 LDUR	X9, [X29, #504]

(596) 0x421fc8 ADD	X14, X9, #1

(596) 0x421fcc STUR	X14, [X29, #504]

(596) 0x421fd0 STR	X13, [X12, X9,LSL #3]

(596) 0x421fd4 LDR	X9, [SP, #16]

(596) 0x421fd8 B	421fac

0x421fdc LDP	X9, X8, [SP]

0x421fe0 CMP	X8, X9

0x421fe4 B.GE	422030

0x421fe8 LDR	X12, [X29, #112]

0x421fec LDR	X10, [X19]

0x421ff0 LDR	X11, [X25]

0x421ff4 LDR	X12, [X12]

0x421ff8 B	42200c

0x421ffc HINT	#0

(595) 0x422000 ADD	X8, X8, #1

(595) 0x422004 CMP	X8, X9

(595) 0x422008 B.GE	422030

(595) 0x42200c LDR	X13, [X10, X8,LSL #3]

(595) 0x422010 LDR	X14, [X11, X13,LSL #3]

(595) 0x422014 CBNZ	X14, 422000

(595) 0x422018 LDUR	X9, [X29, #496]

(595) 0x42201c ADD	X14, X9, #1

(595) 0x422020 STUR	X14, [X29, #496]

(595) 0x422024 STR	X13, [X12, X9,LSL #3]

(595) 0x422028 LDR	X9, [SP]

(595) 0x42202c B	422000

0x422030 LDP	X20, X19, [SP, #112]

0x422034 LDP	X22, X21, [SP, #96]

0x422038 LDP	X24, X23, [SP, #80]

0x42203c LDP	X26, X25, [SP, #64]

0x422040 LDP	X29, X30, [SP, #48]

0x422044 ADD	SP, SP, #128

0x422048 RET

0x42204c HINT	#0

0x422050 HINT	#0

0x422054 HINT	#0

0x422058 HINT	#0

0x42205c HINT	#0

Coverage (%)	Name	Source Location	Module

Path /

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

Source file and lines	par_coarsen.c:2516-2576
Module	exec

The function is defined in /home/hbollore/qaas-runs/171-233-5044/intel/AMG/build/AMG/AMG/parcsr_ls/par_coarsen.c:2516-2576.

Warnings:
Ignoring paths for analysis

gain
potential
hint
expert

Vectorization

Your function is not vectorized. 4 data elements could be processed at once in vector registers. By vectorizing your function, you can lower the cost of an iteration from 12.00 to 3.00 cycles (4.00x speedup).

Details

All VPU instructions are used in scalar version (process only one data element in vector registers). Since your execution units are vector units, only a 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)

Expensive FP math instructions/calls

Detected performance impact from expensive FP math instructions/calls. By removing/reexpressing them, you can lower the cost of an iteration from 12.00 to 1.50 cycles (8.00x speedup).

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

The binary function does not contain any FP arithmetical operations. The binary function is loading 312 bytes. The binary function is storing 96 bytes.

General properties

nb instructions	84
loop length	336
nb stack references	0

Front-end

FIT IN UOP CACHE

front end

9.50 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	6.00	6.00	7.75	7.75	7.75	7.75	0.00	0.00	0.00	0.00	12.00	12.00	12.00	3.00	3.00
cycles	6.00	6.00	7.75	7.75	7.75	7.75	0.00	0.00	0.00	0.00	12.00	12.00	12.00	3.00	3.00

Execution ports to units layout:

P0:
P1:
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	9.50
Overall L1	12.00

Vectorization ratios

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

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 12.00 cycles. At this rate:

27% of peak load performance is reached (26.00 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
16% of peak store performance is reached (8.00 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

ASM code

In the binary file, the address of the function is: 421e50

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	Latency	Recip. throughput
SUB SP, SP, #128	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
STP X29, X30, [SP, #48]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
STP X26, X25, [SP, #64]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
STP X24, X23, [SP, #80]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
STP X22, X21, [SP, #96]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
STP X20, X19, [SP, #112]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
ADD X29, SP, #48	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X23, XZR, X2	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
LDR X2, [X2]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X26, [X29, #96]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X25, [X29, #80]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X0, SP, #24	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ADD X1, SP, #16	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X19, XZR, X7	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X24, XZR, X6	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
STP XZR, XZR, [X29, #1008]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
ORR X20, XZR, X5	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X21, XZR, X4	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X22, XZR, X3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
BL 4b0600 <hypre_GetSimpleThreadPartition>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X2, [X22]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X0, SP, #8	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ADD X1, SP, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
BL 4b0600 <hypre_GetSimpleThreadPartition>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDP X11, X12, [SP, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
CMP X12, X11	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33
B.GE 421f10 <.omp_outlined..23+0xc0>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X13, [X21]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X9, [X20]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X10, [X24]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ORR X8, 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
SUB X11, X11, X12	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ADD X12, X13, X12,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
B 421ef4 <.omp_outlined..23+0xa4>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
HINT #0
HINT #0
LDP X11, X12, [SP]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
CMP X12, X11	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33
B.GE 421f74 <.omp_outlined..23+0x124>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X10, [X29, #88]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X13, [X19]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X14, [X24]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ORR X8, 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
SUB X11, X11, X12	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ADD X12, X13, X12,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
LDR X10, [X10]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X9, [X25]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X10, X14, X10,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
B 421f58 <.omp_outlined..23+0x108>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X4, [X26]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ORR X1, XZR, X23	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X3, XZR, X22	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
SUB X0, X29, #8	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
SUB X2, X29, #16	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
BL 4b1270 <hypre_prefix_sum_pair>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDP X9, X8, [SP, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
CMP X8, X9	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33
B.GE 421fdc <.omp_outlined..23+0x18c>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X12, [X29, #104]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X10, [X21]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X11, [X20]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X12, [X12]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
B 421fb8 <.omp_outlined..23+0x168>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDP X9, X8, [SP]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
CMP X8, X9	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33
B.GE 422030 <.omp_outlined..23+0x1e0>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X12, [X29, #112]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X10, [X19]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X11, [X25]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X12, [X12]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
B 42200c <.omp_outlined..23+0x1bc>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
HINT #0
LDP X20, X19, [SP, #112]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
LDP X22, X21, [SP, #96]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
LDP X24, X23, [SP, #80]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
LDP X26, X25, [SP, #64]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
LDP X29, X30, [SP, #48]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
ADD SP, SP, #128	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
RET	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
HINT #0
HINT #0
HINT #0
HINT #0
HINT #0

Source file and lines	par_coarsen.c:2516-2576
Module	exec

The function is defined in /home/hbollore/qaas-runs/171-233-5044/intel/AMG/build/AMG/AMG/parcsr_ls/par_coarsen.c:2516-2576.

Warnings:
Ignoring paths for analysis

gain
potential
hint
expert

Vectorization

Details

All VPU instructions are used in scalar version (process only one data element in vector registers). Since your execution units are vector units, only a 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)

Expensive FP math instructions/calls

Detected performance impact from expensive FP math instructions/calls. By removing/reexpressing them, you can lower the cost of an iteration from 12.00 to 1.50 cycles (8.00x speedup).

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

The binary function does not contain any FP arithmetical operations. The binary function is loading 312 bytes. The binary function is storing 96 bytes.

General properties

nb instructions	84
loop length	336
nb stack references	0

Front-end

FIT IN UOP CACHE

front end

9.50 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	6.00	6.00	7.75	7.75	7.75	7.75	0.00	0.00	0.00	0.00	12.00	12.00	12.00	3.00	3.00
cycles	6.00	6.00	7.75	7.75	7.75	7.75	0.00	0.00	0.00	0.00	12.00	12.00	12.00	3.00	3.00

Execution ports to units layout:

P0:
P1:
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	9.50
Overall L1	12.00

Vectorization ratios

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

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 12.00 cycles. At this rate:

27% of peak load performance is reached (26.00 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
16% of peak store performance is reached (8.00 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

ASM code

In the binary file, the address of the function is: 421e50

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	Latency	Recip. throughput
SUB SP, SP, #128	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
STP X29, X30, [SP, #48]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
STP X26, X25, [SP, #64]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
STP X24, X23, [SP, #80]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
STP X22, X21, [SP, #96]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
STP X20, X19, [SP, #112]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
ADD X29, SP, #48	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X23, XZR, X2	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
LDR X2, [X2]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X26, [X29, #96]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X25, [X29, #80]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X0, SP, #24	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ADD X1, SP, #16	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X19, XZR, X7	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X24, XZR, X6	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
STP XZR, XZR, [X29, #1008]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
ORR X20, XZR, X5	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X21, XZR, X4	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X22, XZR, X3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
BL 4b0600 <hypre_GetSimpleThreadPartition>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X2, [X22]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X0, SP, #8	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ADD X1, SP, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
BL 4b0600 <hypre_GetSimpleThreadPartition>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDP X11, X12, [SP, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
CMP X12, X11	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33
B.GE 421f10 <.omp_outlined..23+0xc0>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X13, [X21]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X9, [X20]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X10, [X24]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ORR X8, 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
SUB X11, X11, X12	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ADD X12, X13, X12,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
B 421ef4 <.omp_outlined..23+0xa4>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
HINT #0
HINT #0
LDP X11, X12, [SP]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
CMP X12, X11	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33
B.GE 421f74 <.omp_outlined..23+0x124>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X10, [X29, #88]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X13, [X19]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X14, [X24]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ORR X8, 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
SUB X11, X11, X12	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ADD X12, X13, X12,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
LDR X10, [X10]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X9, [X25]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X10, X14, X10,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
B 421f58 <.omp_outlined..23+0x108>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X4, [X26]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ORR X1, XZR, X23	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
ORR X3, XZR, X22	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
SUB X0, X29, #8	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
SUB X2, X29, #16	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
BL 4b1270 <hypre_prefix_sum_pair>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDP X9, X8, [SP, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
CMP X8, X9	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33
B.GE 421fdc <.omp_outlined..23+0x18c>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X12, [X29, #104]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X10, [X21]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X11, [X20]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X12, [X12]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
B 421fb8 <.omp_outlined..23+0x168>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDP X9, X8, [SP]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
CMP X8, X9	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33
B.GE 422030 <.omp_outlined..23+0x1e0>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
LDR X12, [X29, #112]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X10, [X19]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X11, [X25]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X12, [X12]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
B 42200c <.omp_outlined..23+0x1bc>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
HINT #0
LDP X20, X19, [SP, #112]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
LDP X22, X21, [SP, #96]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
LDP X24, X23, [SP, #80]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
LDP X26, X25, [SP, #64]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
LDP X29, X30, [SP, #48]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
ADD SP, SP, #128	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25
RET	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50
HINT #0
HINT #0
HINT #0
HINT #0
HINT #0

Name	Coverage (%)	Time (s)
▼.omp_outlined..23–	0.08	0.03
○Loop 596 - par_coarsen.c:2562-2567 - exec	0.04	0.01
▼Loop 598 - par_coarsen.c:2528-2540 - exec–	0.01	0.01
○Loop 599 - par_coarsen.c:2528-2536 - exec	0.04	0.01
○Loop 597 - par_coarsen.c:2544-2556 - exec	0	0
○Loop 595 - par_coarsen.c:2571-2576 - exec	0	0

Report Configuration

Vectorization

Details

Workaround

Expensive FP math instructions/calls

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

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Cycles and memory resources usage

ASM code

Vectorization

Details

Workaround

Expensive FP math instructions/calls

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

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Cycles and memory resources usage

ASM code