OV - exec - Loop 269

	Loop Id: 269	Module: exec	Source: pack_kernel.f90:61-66	Coverage: 0.01%

  (268) 0x43746a MOV	-0x50(%RBP),%RAX

  (268) 0x43746e MOVSXD	-0x3c(%RBP),%RDX

  (268) 0x437472 MOV	-0x48(%RBP),%R9

  (268) 0x437476 VMOVQ	%XMM3,%R12

  (268) 0x43747b VMOVQ	%XMM1,%RCX

  (268) 0x437480 ADD	%RAX,%RDX

  (268) 0x437483 ADD	%R9,%R12

  (268) 0x437486 VMOVQ	%XMM2,%R9

  (268) 0x43748b MOV	-0x78(%RBP),%RAX

  (268) 0x43748f IMUL	%RDI,%RDX

  (268) 0x437493 LEA	(%RCX,%R12,8),%RSI

  (268) 0x437497 VMOVQ	%XMM0,%R12

  (268) 0x43749c MOV	%RSI,-0x60(%RBP)

  (268) 0x4374a0 ADD	%R12,%RDX

  (268) 0x4374a3 XOR	%R12D,%R12D

  (268) 0x4374a6 LEA	(%R9,%RDX,8),%RCX

  (268) 0x4374aa MOV	-0x80(%RBP),%RDX

  (268) 0x4374ae ADD	%RCX,%RAX

  (268) 0x4374b1 MOV	%RCX,-0x68(%RBP)

  (268) 0x4374b5 LEA	(%RSI,%RDX,1),%RDX

  (268) 0x4374b9 TESTB	$0x1,-0x38(%RBP)

  (268) 0x4374bd JE	437545

  (268) 0x4374c3 MOV	-0x60(%RBP),%R12

  (268) 0x4374c7 MOV	-0x58(%RBP),%R9

  (268) 0x4374cb VMOVSD	(%RDX),%XMM11

  (268) 0x4374cf VMOVSD	(%RDX,%R8,8),%XMM10

  (268) 0x4374d5 VMOVSD	(%RDX,%R11,1),%XMM7

  (268) 0x4374db ADD	%R15,%RSI

  (268) 0x4374de ADD	%R13,%RCX

  (268) 0x4374e1 VMOVSD	(%R12),%XMM15

  (268) 0x4374e7 VMOVSD	(%R12,%R8,8),%XMM14

  (268) 0x4374ed VMOVSD	(%R12,%R11,1),%XMM13

  (268) 0x4374f3 VMOVSD	(%R12,%R9,1),%XMM12

  (268) 0x4374f9 MOV	-0x68(%RBP),%R12

  (268) 0x4374fd VMOVSD	(%RDX,%R9,1),%XMM6

  (268) 0x437503 ADD	%R15,%RDX

  (268) 0x437506 VMOVSD	%XMM15,(%R12)

  (268) 0x43750c VMOVSD	%XMM14,(%R12,%RDI,8)

  (268) 0x437512 VMOVSD	%XMM13,(%R12,%RBX,1)

  (268) 0x437518 VMOVSD	%XMM12,(%R12,%R10,1)

  (268) 0x43751e VMOVSD	%XMM11,(%RAX)

  (268) 0x437522 VMOVSD	%XMM10,(%RAX,%RDI,8)

  (268) 0x437527 VMOVSD	%XMM7,(%RAX,%RBX,1)

  (268) 0x43752c VMOVSD	%XMM6,(%RAX,%R10,1)

  (268) 0x437532 ADD	%R13,%RAX

  (268) 0x437535 CMPL	$0x1,-0x38(%RBP)

  (268) 0x437539 MOV	$0x1,%R12D

  (268) 0x43753f JE	43761b

  (268) 0x437545 MOV	-0x58(%RBP),%R9

    (267) 0x437549 VMOVSD	(%RSI),%XMM7

    (267) 0x43754d VMOVSD	(%RSI,%R8,8),%XMM15

    (267) 0x437553 VMOVSD	(%RSI,%R11,1),%XMM14

    (267) 0x437559 VMOVSD	(%RSI,%R9,1),%XMM13

    (267) 0x43755f VMOVSD	(%RDX),%XMM12

    (267) 0x437563 VMOVSD	(%RDX,%R8,8),%XMM11

    (267) 0x437569 VMOVSD	(%RDX,%R11,1),%XMM10

    (267) 0x43756f VMOVSD	(%RDX,%R9,1),%XMM6

    (267) 0x437575 ADD	%R15,%RSI

    (267) 0x437578 VMOVSD	%XMM7,(%RCX)

    (267) 0x43757c ADD	%R15,%RDX

    (267) 0x43757f VMOVSD	%XMM15,(%RCX,%RDI,8)

    (267) 0x437584 VMOVSD	%XMM14,(%RCX,%RBX,1)

    (267) 0x437589 VMOVSD	%XMM13,(%RCX,%R10,1)

    (267) 0x43758f VMOVSD	%XMM12,(%RAX)

    (267) 0x437593 ADD	%R13,%RCX

    (267) 0x437596 VMOVSD	%XMM11,(%RAX,%RDI,8)

    (267) 0x43759b VMOVSD	%XMM10,(%RAX,%RBX,1)

    (267) 0x4375a0 VMOVSD	%XMM6,(%RAX,%R10,1)

    (267) 0x4375a6 ADD	%R13,%RAX

    (267) 0x4375a9 VMOVSD	(%RSI),%XMM7

    (267) 0x4375ad VMOVSD	(%RSI,%R8,8),%XMM15

    (267) 0x4375b3 VMOVSD	(%RSI,%R11,1),%XMM14

    (267) 0x4375b9 VMOVSD	(%RSI,%R9,1),%XMM13

    (267) 0x4375bf VMOVSD	(%RDX),%XMM12

    (267) 0x4375c3 VMOVSD	(%RDX,%R8,8),%XMM11

    (267) 0x4375c9 VMOVSD	(%RDX,%R11,1),%XMM10

    (267) 0x4375cf VMOVSD	(%RDX,%R9,1),%XMM6

    (267) 0x4375d5 ADD	$0x2,%R12D

    (267) 0x4375d9 VMOVSD	%XMM7,(%RCX)

    (267) 0x4375dd ADD	%R15,%RSI

    (267) 0x4375e0 VMOVSD	%XMM15,(%RCX,%RDI,8)

    (267) 0x4375e5 ADD	%R15,%RDX

    (267) 0x4375e8 VMOVSD	%XMM14,(%RCX,%RBX,1)

    (267) 0x4375ed VMOVSD	%XMM13,(%RCX,%R10,1)

    (267) 0x4375f3 VMOVSD	%XMM12,(%RAX)

    (267) 0x4375f7 ADD	%R13,%RCX

    (267) 0x4375fa VMOVSD	%XMM11,(%RAX,%RDI,8)

    (267) 0x4375ff VMOVSD	%XMM10,(%RAX,%RBX,1)

    (267) 0x437604 VMOVSD	%XMM6,(%RAX,%R10,1)

    (267) 0x43760a ADD	%R13,%RAX

    (267) 0x43760d CMP	%R12D,-0x38(%RBP)

    (267) 0x437611 JNE	437549

  (268) 0x437617 MOV	%R9,-0x58(%RBP)

  (268) 0x43761b MOV	-0x84(%RBP),%ECX

  (268) 0x437621 MOV	%ECX,%ESI

  (268) 0x437623 LEA	0x1(%RCX),%EAX

  (268) 0x437626 CMP	%R14D,%ECX

  (268) 0x437629 JE	4377b3

0x43762f MOV	%R14D,%R12D

0x437632 SUB	%ESI,%R12D

0x437635 LEA	-0x1(%R12),%EDX

0x43763a CMP	$0x2,%EDX

0x43763d JBE	4376d4

0x437643 MOV	-0x48(%RBP),%RDX

0x437647 MOV	%R8,%RCX

0x43764a VMOVQ	%XMM3,%R9

0x43764f IMUL	%RSI,%RCX

0x437653 IMUL	%RDI,%RSI

0x437657 ADD	%R9,%RDX

0x43765a VMOVQ	%XMM1,%R9

0x43765f ADD	%RCX,%RDX

0x437662 LEA	(%R9,%RDX,8),%RCX

0x437666 MOV	-0x50(%RBP),%R9

0x43766a MOVSXD	-0x3c(%RBP),%RDX

0x43766e VMOVSD	(%RCX),%XMM15

0x437672 ADD	%R9,%RDX

0x437675 VMOVQ	%XMM0,%R9

0x43767a IMUL	%RDI,%RDX

0x43767e ADD	%R9,%RDX

0x437681 VMOVQ	%XMM4,%R9

0x437686 ADD	%R9,%RCX

0x437689 ADD	%RSI,%RDX

0x43768c VMOVQ	%XMM2,%RSI

0x437691 VMOVSD	(%RCX),%XMM14

0x437695 ADD	%R9,%RCX

0x437698 LEA	(%RSI,%RDX,8),%RDX

0x43769c MOV	%R12D,%ESI

0x43769f VMOVSD	(%RCX),%XMM7

0x4376a3 VMOVSD	(%RCX,%R9,1),%XMM13

0x4376a9 VMOVQ	%XMM5,%RCX

0x4376ae VMOVSD	%XMM15,(%RDX)

0x4376b2 AND	$-0x4,%ESI

0x4376b5 ADD	%RCX,%RDX

0x4376b8 VMOVSD	%XMM14,(%RDX)

0x4376bc ADD	%ESI,%EAX

0x4376be ADD	%RCX,%RDX

0x4376c1 AND	$0x3,%R12D

0x4376c5 VMOVSD	%XMM7,(%RDX)

0x4376c9 VMOVSD	%XMM13,(%RDX,%RCX,1)

0x4376ce JE	4377b3

0x4376d4 VMOVD	%XMM8,%R12D

0x4376d9 MOV	-0x48(%RBP),%RSI

0x4376dd VMOVQ	%XMM1,%RCX

0x4376e2 LEA	(%R12,%RAX,1),%EDX

0x4376e6 MOV	-0x88(%RBP),%R12D

0x4376ed MOVSXD	%EDX,%R9

0x4376f0 IMUL	%R8,%R9

0x4376f4 ADD	%RSI,%R9

0x4376f7 LEA	(%R12,%RAX,1),%EDX

0x4376fb VMOVSD	(%RCX,%R9,8),%XMM12

0x437701 MOV	-0x3c(%RBP),%R9D

0x437705 ADD	%R9D,%EDX

0x437708 VMOVQ	%XMM2,%R9

0x43770d MOVSXD	%EDX,%RCX

0x437710 VMOVQ	%XMM0,%RDX

0x437715 IMUL	%RDI,%RCX

0x437719 ADD	%RDX,%RCX

0x43771c LEA	0x1(%RAX),%EDX

0x43771f VMOVSD	%XMM12,(%R9,%RCX,8)

0x437725 CMP	%EDX,%R14D

0x437728 JL	4377b3

0x43772e VMOVD	%XMM8,%ECX

0x437732 ADD	$0x2,%EAX

0x437735 LEA	(%RCX,%RDX,1),%R9D

0x437739 ADD	%R12D,%EDX

0x43773c MOVSXD	%R9D,%RCX

0x43773f VMOVQ	%XMM1,%R9

0x437744 IMUL	%R8,%RCX

0x437748 ADD	%RSI,%RCX

0x43774b VMOVSD	(%R9,%RCX,8),%XMM11

0x437751 MOV	%R12D,%ECX

0x437754 MOV	-0x3c(%RBP),%R12D

0x437758 VMOVQ	%XMM0,%R9

0x43775d ADD	%R12D,%EDX

0x437760 MOVSXD	%EDX,%RDX

0x437763 IMUL	%RDI,%RDX

0x437767 ADD	%R9,%RDX

0x43776a VMOVQ	%XMM2,%R9

0x43776f VMOVSD	%XMM11,(%R9,%RDX,8)

0x437775 CMP	%EAX,%R14D

0x437778 JL	4377b3

0x43777a VMOVD	%XMM8,%EDX

0x43777e ADD	%EAX,%EDX

0x437780 ADD	%ECX,%EAX

0x437782 VMOVQ	%XMM0,%RCX

0x437787 ADD	%R12D,%EAX

0x43778a MOVSXD	%EDX,%R9

0x43778d VMOVQ	%XMM2,%R12

0x437792 CLTQ

0x437794 IMUL	%R8,%R9

0x437798 IMUL	%RDI,%RAX

0x43779c ADD	%RSI,%R9

0x43779f VMOVQ	%XMM1,%RSI

0x4377a4 ADD	%RCX,%RAX

0x4377a7 VMOVSD	(%RSI,%R9,8),%XMM10

0x4377ad VMOVSD	%XMM10,(%R12,%RAX,8)

  (268) 0x4377b3 VMOVQ	%XMM9,%RDX

  (268) 0x4377b8 INCL	-0x40(%RBP)

  (268) 0x4377bb ADD	%RDX,-0x48(%RBP)

  (268) 0x4377bf MOV	-0x40(%RBP),%EAX

  (268) 0x4377c2 ADD	%R14D,-0x3c(%RBP)

  (268) 0x4377c6 TEST	%R14D,%R14D

  (268) 0x4377c9 JNS	437800

  (268) 0x437800 CMP	%EAX,-0x6c(%RBP)

  (268) 0x437803 JLE	437837

  (268) 0x437805 MOV	-0x94(%RBP),%ECX

  (268) 0x43780b CMPL	$0x6,-0x70(%RBP)

  (268) 0x43780f MOVB	$0x1,-0x89(%RBP)

  (268) 0x437816 MOV	%ECX,-0x90(%RBP)

  (268) 0x43781c JA	43746a

/home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/pack_kernel.f90: 61 - 66

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

61:     !$OMP PARALLEL DO PRIVATE(index)

62:     DO k=y_min-depth,y_max+y_inc+depth

63:     !$OMP SIMD

64:       DO j=1,depth

65:         index= buffer_offset + j+(k+depth-1)*depth

66:         left_snd_buffer(index)=field(x_min+x_inc-1+j,k)

Coverage (%)	Name	Source Location	Module
►96.08+	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.31+	GOMP_parallel	libgomp.h:982	libgomp.so.1.0.0
○	clover_pack_message_left	pack_kernel.f90:61	exec
○	clover_pack_left	clover.f90:685	exec
○	clover_exchange	clover.f90:387	exec
○	update_halo	update_halo.f90:44	exec
○	advection	advection.f90:103	exec
○	hydro	hydro.f90:64	exec
○	main	clover_leaf.f90:41	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.f90:41	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	12.50
CQA speedup if no inter-iteration dependency	NA
CQA speedup if next bottleneck killed	1.03
Bottlenecks	P14, P15,
Function	__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0
Source	pack_kernel.f90:65-66
Source loop unroll info	NA
Source loop unroll confidence level	NA
Unroll/vectorization loop type	NA
Unroll factor	NA
CQA cycles	12.50
CQA cycles if no scalar integer	12.50
CQA cycles if FP arith vectorized	12.50
CQA cycles if fully vectorized	1.00
Front-end cycles	12.13
P0 cycles	9.17
P1 cycles	9.17
P2 cycles	9.17
P3 cycles	9.17
P4 cycles	9.17
P5 cycles	9.17
P6 cycles	5.25
P7 cycles	5.25
P8 cycles	5.25
P9 cycles	5.25
P10 cycles	0.00
P11 cycles	0.00
P12 cycles	0.00
P13 cycles	0.00
P14 cycles	12.50
P15 cycles	12.50
DIV/SQRT cycles	0.00
Inter-iter dependencies cycles	NA
FE+BE cycles (UFS)	NA
Stall cycles (UFS)	NA
Nb insns	98.00
Nb uops	97.00
Nb loads	14.00
Nb stores	7.00
Nb stack references	4.00
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	12.16
Bytes prefetched	0.00
Bytes loaded	96.00
Bytes stored	56.00
Stride 0	NA
Stride 1	NA
Stride n	NA
Stride unknown	NA
Stride indirect	NA
Vectorization ratio all	0.00
Vectorization ratio load	0.00
Vectorization ratio store	0.00
Vectorization ratio mul	NA
Vectorization ratio add_sub	NA
Vectorization ratio fma	NA
Vectorization ratio div_sqrt	NA
Vectorization ratio other	0.00
Vector-efficiency ratio all	11.46
Vector-efficiency ratio load	12.50
Vector-efficiency ratio store	12.50
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	10.80

Metric	Value
CQA speedup if no scalar integer	1.00
CQA speedup if FP arith vectorized	1.00
CQA speedup if fully vectorized	12.50
CQA speedup if no inter-iteration dependency	NA
CQA speedup if next bottleneck killed	1.03
Bottlenecks	P14, P15,
Function	__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0
Source	pack_kernel.f90:65-66
Source loop unroll info	NA
Source loop unroll confidence level	NA
Unroll/vectorization loop type	NA
Unroll factor	NA
CQA cycles	12.50
CQA cycles if no scalar integer	12.50
CQA cycles if FP arith vectorized	12.50
CQA cycles if fully vectorized	1.00
Front-end cycles	12.13
P0 cycles	9.17
P1 cycles	9.17
P2 cycles	9.17
P3 cycles	9.17
P4 cycles	9.17
P5 cycles	9.17
P6 cycles	5.25
P7 cycles	5.25
P8 cycles	5.25
P9 cycles	5.25
P10 cycles	0.00
P11 cycles	0.00
P12 cycles	0.00
P13 cycles	0.00
P14 cycles	12.50
P15 cycles	12.50
DIV/SQRT cycles	0.00
Inter-iter dependencies cycles	NA
FE+BE cycles (UFS)	NA
Stall cycles (UFS)	NA
Nb insns	98.00
Nb uops	97.00
Nb loads	14.00
Nb stores	7.00
Nb stack references	4.00
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	12.16
Bytes prefetched	0.00
Bytes loaded	96.00
Bytes stored	56.00
Stride 0	NA
Stride 1	NA
Stride n	NA
Stride unknown	NA
Stride indirect	NA
Vectorization ratio all	0.00
Vectorization ratio load	0.00
Vectorization ratio store	0.00
Vectorization ratio mul	NA
Vectorization ratio add_sub	NA
Vectorization ratio fma	NA
Vectorization ratio div_sqrt	NA
Vectorization ratio other	0.00
Vector-efficiency ratio all	11.46
Vector-efficiency ratio load	12.50
Vector-efficiency ratio store	12.50
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	10.80

Path /

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

Function	__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0
Source file and lines	pack_kernel.f90:61-66
Module	exec

The loop is defined in /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/pack_kernel.f90:61-66.

Analyzed code is defined in /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/pack_kernel.f90:65-66.

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 not vectorized. Only 11% of vector register length is used (average across all SSE/AVX instructions). By vectorizing your loop, you can lower the cost of an iteration from 12.50 to 1.00 cycles (12.50x speedup).

Details

All SSE/AVX instructions are used in scalar version (process only one data element in vector registers). Since your execution units are vector units, only a vectorized loop can use their full power.

Workaround

Try another compiler or update/tune your current one:
- recompile with ftree-vectorize (included in O3) to enable loop vectorization (including FP reductions).
Remove inter-iterations dependences from your loop and make it unit-stride:
- If your arrays have 2 or more dimensions, check whether elements are accessed contiguously and, otherwise, try to permute loops accordingly: Fortran storage order is column-major: do i do j a(i,j) = b(i,j) (slow, non stride 1) => do i do j a(j,i) = b(i,j) (fast, stride 1)
- If your loop streams arrays of structures (AoS), try to use structures of arrays instead (SoA): do i a(i)%x = b(i)%x (slow, non stride 1) => do i a%x(i) = b%x(i) (fast, stride 1)

Execution units bottlenecks

Found no such bottlenecks but see expert reports for more complex bottlenecks.

No data for this section

Conversion instructions

Detected expensive conversion instructions.

Details

CLTQ: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/pack_kernel.f90:66

Workaround

Avoid mixing data with different types. In particular, check if the type of constants is the same as array elements.

Type of elements and instruction set

No instructions are processing arithmetic or math operations on FP elements. This loop is probably writing/copying data or processing integer elements.

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 96 bytes. The binary loop is storing 56 bytes.

General properties

nb instructions	98
nb uops	97
loop length	388
used x86 registers	10
used mmx registers	0
used xmm registers	14
used ymm registers	0
used zmm registers	0
nb stack references	4

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	12.13 cycles
front end	12.13 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15
uops	9.17	9.17	9.17	9.17	9.17	9.17	5.25	5.25	5.25	5.25	0.00	0.00	0.00	0.00	12.50	12.50
cycles	9.17	9.17	9.17	9.17	9.17	9.17	5.25	5.25	5.25	5.25	0.00	0.00	0.00	0.00	12.50	12.50

Execution ports to units layout:

P0: ALU
P1: ALU
P2: ALU
P3: ALU, BRU
P4: ALU, BRU
P5: ALU, BRU
P6 (512 bits): store address, load
P7 (512 bits): store address, load
P8 (512 bits): store address, load
P9 (512 bits): store address, load
P10 (512 bits): VPU, DIV/SQRT
P11 (512 bits): VPU, DIV/SQRT
P12 (512 bits): VPU
P13 (512 bits): VPU
P14 (512 bits): FP store data
P15 (512 bits): FP store data

Cycles executing div or sqrt instructions

Cycles summary

Front-end	12.13
Dispatch	12.50
Overall L1	12.50

Vectorization ratios

INT

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	NA (no add-sub vectorizable/vectorized instructions)
fma	NA (no fma vectorizable/vectorized instructions)
other	0%

all	0%
load	0%
store	0%
mul	NA (no mul vectorizable/vectorized instructions)
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	0%
load	0%
store	0%
mul	NA (no mul vectorizable/vectorized instructions)
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	10%
load	NA (no load vectorizable/vectorized instructions)
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	10%

all	12%
load	12%
store	12%
mul	NA (no mul vectorizable/vectorized instructions)
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	11%
load	12%
store	12%
mul	NA (no mul vectorizable/vectorized instructions)
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	10%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each iteration of the binary loop takes 12.50 cycles. At this rate:

3% of peak load performance is reached (7.68 out of 256.00 bytes loaded per cycle (GB/s @ 1GHz))
3% of peak store performance is reached (4.48 out of 128.00 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: 43762f

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15	Latency	Recip. throughput	Vectorization
MOV %R14D,%R12D	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
SUB %ESI,%R12D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA -0x1(%R12),%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
CMP $0x2,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	scal (6.3%)
JBE 4376d4 <__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0+0x634>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.50-1	N/A
MOV -0x48(%RBP),%RDX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
MOV %R8,%RCX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
VMOVQ %XMM3,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
IMUL %RSI,%RCX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
IMUL %RDI,%RSI	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %R9,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM1,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %RCX,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA (%R9,%RDX,8),%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
MOV -0x50(%RBP),%R9	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
MOVSXD -0x3c(%RBP),%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	N/A
VMOVSD (%RCX),%XMM15	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
ADD %R9,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM0,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
IMUL %RDI,%RDX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %R9,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM4,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %R9,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
ADD %RSI,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM2,%RSI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
VMOVSD (%RCX),%XMM14	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
ADD %R9,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA (%RSI,%RDX,8),%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
MOV %R12D,%ESI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
VMOVSD (%RCX),%XMM7	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
VMOVSD (%RCX,%R9,1),%XMM13	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
VMOVQ %XMM5,%RCX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
VMOVSD %XMM15,(%RDX)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
AND $-0x4,%ESI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
ADD %RCX,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVSD %XMM14,(%RDX)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %ESI,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
ADD %RCX,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
AND $0x3,%R12D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVSD %XMM7,(%RDX)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
VMOVSD %XMM13,(%RDX,%RCX,1)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
JE 4377b3 <__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0+0x713>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.50-1	N/A
VMOVD %XMM8,%R12D	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	5	0.50	scal (6.3%)
MOV -0x48(%RBP),%RSI	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
VMOVQ %XMM1,%RCX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
LEA (%R12,%RAX,1),%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
MOV -0x88(%RBP),%R12D	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
MOVSXD %EDX,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
IMUL %R8,%R9	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %RSI,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA (%R12,%RAX,1),%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
VMOVSD (%RCX,%R9,8),%XMM12	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
MOV -0x3c(%RBP),%R9D	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
ADD %R9D,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM2,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
MOVSXD %EDX,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM0,%RDX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
IMUL %RDI,%RCX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %RDX,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA 0x1(%RAX),%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
VMOVSD %XMM12,(%R9,%RCX,8)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
CMP %EDX,%R14D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	scal (6.3%)
JL 4377b3 <__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0+0x713>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.50-1	N/A
VMOVD %XMM8,%ECX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	5	0.50	scal (6.3%)
ADD $0x2,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA (%RCX,%RDX,1),%R9D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
ADD %R12D,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
MOVSXD %R9D,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM1,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
IMUL %R8,%RCX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %RSI,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVSD (%R9,%RCX,8),%XMM11	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
MOV %R12D,%ECX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV -0x3c(%RBP),%R12D	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
VMOVQ %XMM0,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %R12D,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
MOVSXD %EDX,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
IMUL %RDI,%RDX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %R9,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM2,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
VMOVSD %XMM11,(%R9,%RDX,8)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
CMP %EAX,%R14D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	scal (6.3%)
JL 4377b3 <__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0+0x713>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.50-1	N/A
VMOVD %XMM8,%EDX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	5	0.50	scal (6.3%)
ADD %EAX,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
ADD %ECX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM0,%RCX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %R12D,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
MOVSXD %EDX,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM2,%R12	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
CLTQ																				scal (12.5%)
IMUL %R8,%R9	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
IMUL %RDI,%RAX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %RSI,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM1,%RSI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %RCX,%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVSD (%RSI,%R9,8),%XMM10	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
VMOVSD %XMM10,(%R12,%RAX,8)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)

Function	__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0
Source file and lines	pack_kernel.f90:61-66
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

Details

All SSE/AVX instructions are used in scalar version (process only one data element in vector registers). Since your execution units are vector units, only a vectorized loop can use their full power.

Workaround

Try another compiler or update/tune your current one:
- recompile with ftree-vectorize (included in O3) to enable loop vectorization (including FP reductions).
Remove inter-iterations dependences from your loop and make it unit-stride:
- If your arrays have 2 or more dimensions, check whether elements are accessed contiguously and, otherwise, try to permute loops accordingly: Fortran storage order is column-major: do i do j a(i,j) = b(i,j) (slow, non stride 1) => do i do j a(j,i) = b(i,j) (fast, stride 1)
- If your loop streams arrays of structures (AoS), try to use structures of arrays instead (SoA): do i a(i)%x = b(i)%x (slow, non stride 1) => do i a%x(i) = b%x(i) (fast, stride 1)

Execution units bottlenecks

Found no such bottlenecks but see expert reports for more complex bottlenecks.

No data for this section

Conversion instructions

Detected expensive conversion instructions.

Details

CLTQ: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/pack_kernel.f90:66

Workaround

Avoid mixing data with different types. In particular, check if the type of constants is the same as array elements.

Type of elements and instruction set

No instructions are processing arithmetic or math operations on FP elements. This loop is probably writing/copying data or processing integer elements.

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 96 bytes. The binary loop is storing 56 bytes.

General properties

nb instructions	98
nb uops	97
loop length	388
used x86 registers	10
used mmx registers	0
used xmm registers	14
used ymm registers	0
used zmm registers	0
nb stack references	4

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	12.13 cycles
front end	12.13 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15
uops	9.17	9.17	9.17	9.17	9.17	9.17	5.25	5.25	5.25	5.25	0.00	0.00	0.00	0.00	12.50	12.50
cycles	9.17	9.17	9.17	9.17	9.17	9.17	5.25	5.25	5.25	5.25	0.00	0.00	0.00	0.00	12.50	12.50

Execution ports to units layout:

P0: ALU
P1: ALU
P2: ALU
P3: ALU, BRU
P4: ALU, BRU
P5: ALU, BRU
P6 (512 bits): store address, load
P7 (512 bits): store address, load
P8 (512 bits): store address, load
P9 (512 bits): store address, load
P10 (512 bits): VPU, DIV/SQRT
P11 (512 bits): VPU, DIV/SQRT
P12 (512 bits): VPU
P13 (512 bits): VPU
P14 (512 bits): FP store data
P15 (512 bits): FP store data

Cycles executing div or sqrt instructions

Cycles summary

Front-end	12.13
Dispatch	12.50
Overall L1	12.50

Vectorization ratios

INT

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	NA (no add-sub vectorizable/vectorized instructions)
fma	NA (no fma vectorizable/vectorized instructions)
other	0%

all	0%
load	0%
store	0%
mul	NA (no mul vectorizable/vectorized instructions)
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	0%
load	0%
store	0%
mul	NA (no mul vectorizable/vectorized instructions)
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	10%
load	NA (no load vectorizable/vectorized instructions)
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	10%

all	12%
load	12%
store	12%
mul	NA (no mul vectorizable/vectorized instructions)
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	11%
load	12%
store	12%
mul	NA (no mul vectorizable/vectorized instructions)
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	10%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each iteration of the binary loop takes 12.50 cycles. At this rate:

3% of peak load performance is reached (7.68 out of 256.00 bytes loaded per cycle (GB/s @ 1GHz))
3% of peak store performance is reached (4.48 out of 128.00 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: 43762f

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15	Latency	Recip. throughput	Vectorization
MOV %R14D,%R12D	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
SUB %ESI,%R12D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA -0x1(%R12),%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
CMP $0x2,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	scal (6.3%)
JBE 4376d4 <__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0+0x634>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.50-1	N/A
MOV -0x48(%RBP),%RDX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
MOV %R8,%RCX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
VMOVQ %XMM3,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
IMUL %RSI,%RCX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
IMUL %RDI,%RSI	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %R9,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM1,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %RCX,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA (%R9,%RDX,8),%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
MOV -0x50(%RBP),%R9	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
MOVSXD -0x3c(%RBP),%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.25	N/A
VMOVSD (%RCX),%XMM15	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
ADD %R9,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM0,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
IMUL %RDI,%RDX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %R9,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM4,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %R9,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
ADD %RSI,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM2,%RSI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
VMOVSD (%RCX),%XMM14	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
ADD %R9,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA (%RSI,%RDX,8),%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
MOV %R12D,%ESI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
VMOVSD (%RCX),%XMM7	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
VMOVSD (%RCX,%R9,1),%XMM13	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
VMOVQ %XMM5,%RCX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
VMOVSD %XMM15,(%RDX)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
AND $-0x4,%ESI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
ADD %RCX,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVSD %XMM14,(%RDX)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %ESI,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
ADD %RCX,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
AND $0x3,%R12D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVSD %XMM7,(%RDX)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
VMOVSD %XMM13,(%RDX,%RCX,1)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
JE 4377b3 <__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0+0x713>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.50-1	N/A
VMOVD %XMM8,%R12D	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	5	0.50	scal (6.3%)
MOV -0x48(%RBP),%RSI	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
VMOVQ %XMM1,%RCX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
LEA (%R12,%RAX,1),%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
MOV -0x88(%RBP),%R12D	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
MOVSXD %EDX,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
IMUL %R8,%R9	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %RSI,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA (%R12,%RAX,1),%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
VMOVSD (%RCX,%R9,8),%XMM12	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
MOV -0x3c(%RBP),%R9D	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
ADD %R9D,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM2,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
MOVSXD %EDX,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM0,%RDX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
IMUL %RDI,%RCX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %RDX,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA 0x1(%RAX),%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
VMOVSD %XMM12,(%R9,%RCX,8)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
CMP %EDX,%R14D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	scal (6.3%)
JL 4377b3 <__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0+0x713>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.50-1	N/A
VMOVD %XMM8,%ECX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	5	0.50	scal (6.3%)
ADD $0x2,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
LEA (%RCX,%RDX,1),%R9D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.25	N/A
ADD %R12D,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
MOVSXD %R9D,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM1,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
IMUL %R8,%RCX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %RSI,%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVSD (%R9,%RCX,8),%XMM11	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
MOV %R12D,%ECX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV -0x3c(%RBP),%R12D	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	3	0.25	N/A
VMOVQ %XMM0,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %R12D,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
MOVSXD %EDX,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
IMUL %RDI,%RDX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %R9,%RDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM2,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
VMOVSD %XMM11,(%R9,%RDX,8)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
CMP %EAX,%R14D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	scal (6.3%)
JL 4377b3 <__pack_kernel_module_MOD_clover_pack_message_left._omp_fn.0+0x713>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.50-1	N/A
VMOVD %XMM8,%EDX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	5	0.50	scal (6.3%)
ADD %EAX,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
ADD %ECX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM0,%RCX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %R12D,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
MOVSXD %EDX,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM2,%R12	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
CLTQ																				scal (12.5%)
IMUL %R8,%R9	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
IMUL %RDI,%RAX	1	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0.33	N/A
ADD %RSI,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVQ %XMM1,%RSI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)
ADD %RCX,%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	0	0	0	0	1	0.17	N/A
VMOVSD (%RSI,%R9,8),%XMM10	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	1	0.50	scal (12.5%)
VMOVSD %XMM10,(%R12,%RAX,8)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	1	0.50	scal (12.5%)

Report Configuration

Vectorization

Details

Workaround

Execution units bottlenecks

Conversion instructions

Details

Workaround

Type of elements and instruction set

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

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

Workaround

Execution units bottlenecks

Conversion instructions

Details

Workaround

Type of elements and instruction set

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

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Vector efficiency ratios

Cycles and memory resources usage

Front-end bottlenecks

ASM code