OV - exec - Loop 1595

0x4308ec STR	XZR, [X12, X0,LSL #3]

0x4308f0 LDR	X0, [SP, #560]

0x4308f4 STR	XZR, [X13, X0,LSL #3]

0x4308f8 LDR	X0, [SP, #560]

0x4308fc STR	X14, [X10, X0,LSL #3]

0x430900 LDR	X0, [SP, #560]

0x430904 STR	X14, [X15, X0,LSL #3]

0x430908 LDR	X0, [SP, #560]

0x43090c LDR	X1, [SP, #632]

0x430910 ADD	X0, X0, #1

0x430914 CMP	X0, X1

0x430918 STR	X0, [SP, #560]

0x43091c B.GE	430974

  (1596) 0x430920 LDR	X1, [X8, X0,LSL #3]

  (1596) 0x430924 CMN	X1, #1

  (1596) 0x430928 B.EQ	4308e0

  (1596) 0x43092c CMP	X1, #1

  (1596) 0x430930 B.NE	4308ec

  (1596) 0x430934 STR	X11, [X15, X0,LSL #3]

  (1596) 0x430938 LDR	X0, [SP, #560]

  (1596) 0x43093c STR	X0, [X17, X11,LSL #3]

  (1596) 0x430940 ADD	X11, X11, #1

  (1596) 0x430944 LDR	X0, [SP, #560]

  (1596) 0x430948 STR	XZR, [X10, X0,LSL #3]

  (1596) 0x43094c LDR	X0, [SP, #560]

  (1596) 0x430950 STR	X16, [X12, X0,LSL #3]

  (1596) 0x430954 LDR	X0, [SP, #560]

  (1596) 0x430958 STR	XZR, [X13, X0,LSL #3]

  (1596) 0x43095c LDR	X0, [SP, #560]

  (1596) 0x430960 LDR	X1, [SP, #632]

  (1596) 0x430964 ADD	X0, X0, #1

  (1596) 0x430968 CMP	X0, X1

  (1596) 0x43096c STR	X0, [SP, #560]

  (1596) 0x430970 B.LT	430920

/home/hbollore/qaas-runs/171-233-5044/intel/AMG/build/AMG/AMG/parcsr_ls/par_multi_interp.c: 385 - 400

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

385:    for (i = 0; i < n_fine; i++)

386:    {

387:       if (CF_marker[i] == 1)

388:       {

389:          fine_to_coarse[i] = cnt; /* this C point is assigned index

390:                                      coarse_counter on coarse grid,

391:                                      and in column of P */

392:          C_array[cnt++] = i;

393:          assigned[i] = 0;

394:          P_diag_i[i+1] = 1; /* one element in row i1 of P */

395:          P_offd_i[i+1] = 0;

396:       }

397:       else if (CF_marker[i] == -1)

398:       {

399:          pass_array[p_cnt--] = i;

400:          P_diag_i[i+1] = 0;

Coverage (%)	Name	Source Location	Module

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	1.05
Bottlenecks	P10,
Function	hypre_BoomerAMGBuildMultipass
Source	par_multi_interp.c:385-385,par_multi_interp.c:400-400
Source loop unroll info	NA
Source loop unroll confidence level	NA
Unroll/vectorization loop type	NA
Unroll factor	NA
CQA cycles	3.50
CQA cycles if no scalar integer	3.50
CQA cycles if FP arith vectorized	NA
CQA cycles if fully vectorized	NA
Front-end cycles	1.63
DIV/SQRT cycles	0.50
P0 cycles	0.50
P1 cycles	0.50
P2 cycles	0.50
P3 cycles	0.50
P4 cycles	0.50
P5 cycles	0.00
P6 cycles	0.00
P7 cycles	0.00
P8 cycles	0.00
P9 cycles	3.50
P10 cycles	3.17
P11 cycles	3.33
P12 cycles	2.50
P13 cycles	2.50
P14 cycles	0.00
Inter-iter dependencies cycles	NA
FE+BE cycles (UFS)	NA
Stall cycles (UFS)	NA
Nb insns	13.00
Nb uops	13.00
Nb loads	NA
Nb stores	5.00
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	22.86
Bytes prefetched	0.00
Bytes loaded	40.00
Bytes stored	40.00
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	1.05
Bottlenecks	P10,
Function	hypre_BoomerAMGBuildMultipass
Source	par_multi_interp.c:385-385,par_multi_interp.c:400-400
Source loop unroll info	NA
Source loop unroll confidence level	NA
Unroll/vectorization loop type	NA
Unroll factor	NA
CQA cycles	3.50
CQA cycles if no scalar integer	3.50
CQA cycles if FP arith vectorized	NA
CQA cycles if fully vectorized	NA
Front-end cycles	1.63
DIV/SQRT cycles	0.50
P0 cycles	0.50
P1 cycles	0.50
P2 cycles	0.50
P3 cycles	0.50
P4 cycles	0.50
P5 cycles	0.00
P6 cycles	0.00
P7 cycles	0.00
P8 cycles	0.00
P9 cycles	3.50
P10 cycles	3.17
P11 cycles	3.33
P12 cycles	2.50
P13 cycles	2.50
P14 cycles	0.00
Inter-iter dependencies cycles	NA
FE+BE cycles (UFS)	NA
Stall cycles (UFS)	NA
Nb insns	13.00
Nb uops	13.00
Nb loads	NA
Nb stores	5.00
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	22.86
Bytes prefetched	0.00
Bytes loaded	40.00
Bytes stored	40.00
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_BoomerAMGBuildMultipass
Source file and lines	par_multi_interp.c:385-400
Module	exec

The loop is defined in /home/hbollore/qaas-runs/171-233-5044/intel/AMG/build/AMG/AMG/parcsr_ls/par_multi_interp.c:385-400.

Analyzed code is defined in /home/hbollore/qaas-runs/171-233-5044/intel/AMG/build/AMG/AMG/parcsr_ls/par_multi_interp.c:385,400.

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

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 40 bytes. The binary loop is storing 40 bytes.

General properties

nb instructions	13
loop length	52
nb stack references	0

Front-end

FIT IN UOP CACHE

front end

1.63 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	0.50	0.50	0.50	0.50	0.50	0.50	0.00	0.00	0.00	0.00	3.50	3.17	3.33	2.50	2.50
cycles	0.50	0.50	0.50	0.50	0.50	0.50	0.00	0.00	0.00	0.00	3.50	3.17	3.33	2.50	2.50

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

NA

Cycles summary

Front-end	1.63
Overall L1	3.50

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 3.50 cycles. At this rate:

11% of peak load performance is reached (11.43 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
23% of peak store performance is reached (11.43 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

ASM code

In the binary file, the address of the loop is: 4308ec

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P10	P11	P12	P13	P14	Latency	Recip. throughput
STR XZR, [X12, X0,LSL #3]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
LDR X0, [SP, #560]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STR XZR, [X13, X0,LSL #3]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
LDR X0, [SP, #560]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STR X14, [X10, X0,LSL #3]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
LDR X0, [SP, #560]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STR X14, [X15, X0,LSL #3]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
LDR X0, [SP, #560]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X1, [SP, #632]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X0, X0, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
CMP X0, X1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
STR X0, [SP, #560]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
B.GE 430974 <hypre_BoomerAMGBuildMultipass+0x694>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50

Function	hypre_BoomerAMGBuildMultipass
Source file and lines	par_multi_interp.c:385-400
Module	exec

The loop is defined in /home/hbollore/qaas-runs/171-233-5044/intel/AMG/build/AMG/AMG/parcsr_ls/par_multi_interp.c:385-400.

Analyzed code is defined in /home/hbollore/qaas-runs/171-233-5044/intel/AMG/build/AMG/AMG/parcsr_ls/par_multi_interp.c:385,400.

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

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 40 bytes. The binary loop is storing 40 bytes.

General properties

nb instructions	13
loop length	52
nb stack references	0

Front-end

FIT IN UOP CACHE

front end

1.63 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	0.50	0.50	0.50	0.50	0.50	0.50	0.00	0.00	0.00	0.00	3.50	3.17	3.33	2.50	2.50
cycles	0.50	0.50	0.50	0.50	0.50	0.50	0.00	0.00	0.00	0.00	3.50	3.17	3.33	2.50	2.50

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

NA

Cycles summary

Front-end	1.63
Overall L1	3.50

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 3.50 cycles. At this rate:

11% of peak load performance is reached (11.43 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
23% of peak store performance is reached (11.43 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

ASM code

In the binary file, the address of the loop is: 4308ec

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P10	P11	P12	P13	P14	Latency	Recip. throughput
STR XZR, [X12, X0,LSL #3]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
LDR X0, [SP, #560]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STR XZR, [X13, X0,LSL #3]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
LDR X0, [SP, #560]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STR X14, [X10, X0,LSL #3]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
LDR X0, [SP, #560]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STR X14, [X15, X0,LSL #3]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
LDR X0, [SP, #560]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X1, [SP, #632]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X0, X0, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
CMP X0, X1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
STR X0, [SP, #560]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
B.GE 430974 <hypre_BoomerAMGBuildMultipass+0x694>	1	0.50	0.50	0	0	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