OV - exec - Loop 166

0x422018 LDR	X3, [X0]    [13]

0x42201c LDR	X24, [X20, X3,LSL #3]    [3]

0x422020 CBNZ	X24, 42202c

0x42202c LDR	X25, [X0, #8]    [4]

0x422030 ADD	X0, X0, #8

0x422034 LDR	X27, [X20, X25,LSL #3]    [14]

0x422038 CBNZ	X27, 422044

0x422044 LDR	X28, [X0, #8]    [5]

0x422048 LDR	X16, [X20, X28,LSL #3]    [12]

0x42204c CBNZ	X16, 422058

0x422058 LDR	X15, [X0, #16]    [6]

0x42205c LDR	X17, [X20, X15,LSL #3]    [1]

0x422060 CBNZ	X17, 42206c

0x42206c LDR	X18, [X0, #24]    [7]

0x422070 LDR	X30, [X20, X18,LSL #3]    [11]

0x422074 CBNZ	X30, 422080

0x422080 LDR	X5, [X0, #32]    [8]

0x422084 LDR	X4, [X20, X5,LSL #3]    [16]

0x422088 CBNZ	X4, 422094

0x422094 LDR	X7, [X0, #40]    [9]

0x422098 LDR	X8, [X20, X7,LSL #3]    [2]

0x42209c CBNZ	X8, 4220a8

0x4220a8 LDR	X9, [X0, #48]    [10]

0x4220ac LDR	X10, [X20, X9,LSL #3]    [15]

0x4220b0 CBNZ	X10, 4220bc

0x4220bc ADD	X0, X0, #56

0x4220c0 CMP	X0, X26

0x4220c4 B.NE	422018

/home/hbollore/qaas/qaas-runs/169-817-3176/intel/AMG/build/AMG/AMG/parcsr_ls/par_coarsen.c: 2562 - 2565

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

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

2563:         {

2564:            i = graph_array[ig];

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

Coverage (%)	Name	Source Location	Module
►100.00+	GOMP_parallel		libomp.so
○	hypre_BoomerAMGCoarsenPMIS	par_coarsen.c:2587	exec
○	hypre_BoomerAMGSetup	par_amg_setup.c:612	exec
○	hypre_PCGSetup	pcg.c:234	exec
○	main	amg.c:398	exec
○	__libc_start_main		libc-2.31.so
○	_start	amg.c:599	exec

Path /

Metric	Value
CQA speedup if no scalar integer	1.00
CQA speedup if FP arith vectorized	NA
CQA speedup if fully vectorized	NA
CQA speedup if no inter-iteration dependency	NA
CQA speedup if next bottleneck killed	1.19
Bottlenecks	P10, P11, P12,
Function	hypre_BoomerAMGCoarsenPMIS._omp_fn.8
Source	par_coarsen.c:2562-2565
Source loop unroll info	not unrolled or unrolled with no peel/tail loop
Source loop unroll confidence level	max
Unroll/vectorization loop type	NA
Unroll factor	NA
CQA cycles	5.33
CQA cycles if no scalar integer	5.33
CQA cycles if FP arith vectorized	NA
CQA cycles if fully vectorized	NA
Front-end cycles	3.50
DIV/SQRT cycles	4.50
P0 cycles	4.50
P1 cycles	0.75
P2 cycles	0.75
P3 cycles	0.75
P4 cycles	0.75
P5 cycles	0.00
P6 cycles	0.00
P7 cycles	0.00
P8 cycles	0.00
P9 cycles	5.33
P10 cycles	5.33
P11 cycles	5.33
P12 cycles	0.00
P13 cycles	0.00
P14 cycles	0.00
Inter-iter dependencies cycles	NA
FE+BE cycles (UFS)	NA
Stall cycles (UFS)	NA
Nb insns	28.00
Nb uops	28.00
Nb loads	NA
Nb stores	0.00
Nb stack references	0.00
FLOP/cycle	0.00
Nb FLOP add-sub	0.00
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	24.00
Bytes prefetched	0.00
Bytes loaded	128.00
Bytes stored	0.00
Stride 0	NA
Stride 1	NA
Stride n	NA
Stride unknown	NA
Stride indirect	NA
Vectorization ratio all	NA
Vectorization ratio load	NA
Vectorization ratio store	NA
Vectorization ratio mul	NA
Vectorization ratio add_sub	NA
Vectorization ratio fma	NA
Vectorization ratio div_sqrt	NA
Vectorization ratio other	NA
Vector-efficiency ratio all	NA
Vector-efficiency ratio load	NA
Vector-efficiency ratio store	NA
Vector-efficiency ratio mul	NA
Vector-efficiency ratio add_sub	NA
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	NA
CQA speedup if fully vectorized	NA
CQA speedup if no inter-iteration dependency	NA
CQA speedup if next bottleneck killed	1.19
Bottlenecks	P10, P11, P12,
Function	hypre_BoomerAMGCoarsenPMIS._omp_fn.8
Source	par_coarsen.c:2562-2565
Source loop unroll info	not unrolled or unrolled with no peel/tail loop
Source loop unroll confidence level	max
Unroll/vectorization loop type	NA
Unroll factor	NA
CQA cycles	5.33
CQA cycles if no scalar integer	5.33
CQA cycles if FP arith vectorized	NA
CQA cycles if fully vectorized	NA
Front-end cycles	3.50
DIV/SQRT cycles	4.50
P0 cycles	4.50
P1 cycles	0.75
P2 cycles	0.75
P3 cycles	0.75
P4 cycles	0.75
P5 cycles	0.00
P6 cycles	0.00
P7 cycles	0.00
P8 cycles	0.00
P9 cycles	5.33
P10 cycles	5.33
P11 cycles	5.33
P12 cycles	0.00
P13 cycles	0.00
P14 cycles	0.00
Inter-iter dependencies cycles	NA
FE+BE cycles (UFS)	NA
Stall cycles (UFS)	NA
Nb insns	28.00
Nb uops	28.00
Nb loads	NA
Nb stores	0.00
Nb stack references	0.00
FLOP/cycle	0.00
Nb FLOP add-sub	0.00
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	24.00
Bytes prefetched	0.00
Bytes loaded	128.00
Bytes stored	0.00
Stride 0	NA
Stride 1	NA
Stride n	NA
Stride unknown	NA
Stride indirect	NA
Vectorization ratio all	NA
Vectorization ratio load	NA
Vectorization ratio store	NA
Vectorization ratio mul	NA
Vectorization ratio add_sub	NA
Vectorization ratio fma	NA
Vectorization ratio div_sqrt	NA
Vectorization ratio other	NA
Vector-efficiency ratio all	NA
Vector-efficiency ratio load	NA
Vector-efficiency ratio store	NA
Vector-efficiency ratio mul	NA
Vector-efficiency ratio add_sub	NA
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	hypre_BoomerAMGCoarsenPMIS._omp_fn.8
Source file and lines	par_coarsen.c:2562-2565
Module	exec

The loop is defined in /home/hbollore/qaas/qaas-runs/169-817-3176/intel/AMG/build/AMG/AMG/parcsr_ls/par_coarsen.c:2562-2565.

The related source loop is not unrolled or unrolled with no peel/tail loop.
Warnings:

Ignoring paths for analysis
Failed to get the number of paths
RecMII not computed since number of paths is unknown or > max_paths

gain
potential
hint
expert

Vectorization

Your loop is not vectorized.

Details

No VPU instruction: only general purpose registers are used and data elements are processed one at a time.

No data for this section

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

The binary loop does not contain any FP arithmetical operations. The binary loop is loading 128 bytes.

General properties

nb instructions	28
loop length	112
nb stack references	0

Front-end

FIT IN UOP CACHE

front end

3.50 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	4.50	4.50	0.75	0.75	0.75	0.75	0.00	0.00	0.00	0.00	5.33	5.33	5.33	0.00	0.00
cycles	4.50	4.50	0.75	0.75	0.75	0.75	0.00	0.00	0.00	0.00	5.33	5.33	5.33	0.00	0.00

Cycles executing div or sqrt instructions

NA

Cycles summary

Front-end	3.50
Overall L1	5.33

Vectorization ratios

No vectorizable/vectorized instructions

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each iteration of the binary loop takes 5.33 cycles. At this rate:

25% of peak load performance is reached (24.00 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))

ASM code

In the binary file, the address of the loop is: 422018

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P10	P11	P12	Latency	Recip. throughput
LDR X3, [X0]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X24, [X20, X3,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X24, 42202c <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x4ec>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X25, [X0, #8]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
ADD X0, X0, #8	1	0	0	0.25	0.25	0.25	0.25	0	0	0	1	0.25
LDR X27, [X20, X25,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X27, 422044 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x504>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X28, [X0, #8]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X16, [X20, X28,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X16, 422058 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x518>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X15, [X0, #16]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X17, [X20, X15,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X17, 42206c <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x52c>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X18, [X0, #24]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X30, [X20, X18,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X30, 422080 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x540>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X5, [X0, #32]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X4, [X20, X5,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X4, 422094 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x554>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X7, [X0, #40]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X8, [X20, X7,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X8, 4220a8 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x568>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X9, [X0, #48]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X10, [X20, X9,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X10, 4220bc <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x57c>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADD X0, X0, #56	1	0	0	0.25	0.25	0.25	0.25	0	0	0	1	0.25
CMP X0, X26	1	0	0	0.25	0.25	0.25	0.25	0	0	0	1	0.33
B.NE 422018 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x4d8>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50

Function	hypre_BoomerAMGCoarsenPMIS._omp_fn.8
Source file and lines	par_coarsen.c:2562-2565
Module	exec

The loop is defined in /home/hbollore/qaas/qaas-runs/169-817-3176/intel/AMG/build/AMG/AMG/parcsr_ls/par_coarsen.c:2562-2565.

The related source loop is not unrolled or unrolled with no peel/tail loop.
Warnings:

Ignoring paths for analysis
Failed to get the number of paths
RecMII not computed since number of paths is unknown or > max_paths

gain
potential
hint
expert

Vectorization

Your loop is not vectorized.

Details

No VPU instruction: only general purpose registers are used and data elements are processed one at a time.

No data for this section

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

The binary loop does not contain any FP arithmetical operations. The binary loop is loading 128 bytes.

General properties

nb instructions	28
loop length	112
nb stack references	0

Front-end

FIT IN UOP CACHE

front end

3.50 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	4.50	4.50	0.75	0.75	0.75	0.75	0.00	0.00	0.00	0.00	5.33	5.33	5.33	0.00	0.00
cycles	4.50	4.50	0.75	0.75	0.75	0.75	0.00	0.00	0.00	0.00	5.33	5.33	5.33	0.00	0.00

Cycles executing div or sqrt instructions

NA

Cycles summary

Front-end	3.50
Overall L1	5.33

Vectorization ratios

No vectorizable/vectorized instructions

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each iteration of the binary loop takes 5.33 cycles. At this rate:

25% of peak load performance is reached (24.00 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))

ASM code

In the binary file, the address of the loop is: 422018

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P10	P11	P12	Latency	Recip. throughput
LDR X3, [X0]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X24, [X20, X3,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X24, 42202c <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x4ec>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X25, [X0, #8]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
ADD X0, X0, #8	1	0	0	0.25	0.25	0.25	0.25	0	0	0	1	0.25
LDR X27, [X20, X25,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X27, 422044 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x504>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X28, [X0, #8]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X16, [X20, X28,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X16, 422058 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x518>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X15, [X0, #16]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X17, [X20, X15,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X17, 42206c <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x52c>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X18, [X0, #24]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X30, [X20, X18,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X30, 422080 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x540>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X5, [X0, #32]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X4, [X20, X5,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X4, 422094 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x554>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X7, [X0, #40]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X8, [X20, X7,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X8, 4220a8 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x568>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR X9, [X0, #48]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
LDR X10, [X20, X9,LSL #3]	1	0	0	0	0	0	0	0.33	0.33	0.33	4	0.33
CBNZ X10, 4220bc <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x57c>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADD X0, X0, #56	1	0	0	0.25	0.25	0.25	0.25	0	0	0	1	0.25
CMP X0, X26	1	0	0	0.25	0.25	0.25	0.25	0	0	0	1	0.33
B.NE 422018 <hypre_BoomerAMGCoarsenPMIS._omp_fn.8+0x4d8>	1	0.50	0.50	0	0	0	0	0	0	0	1	0.50

Report Configuration

Vectorization

Details

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

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Cycles and memory resources usage

ASM code

Vectorization

Details

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

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Cycles and memory resources usage

ASM code