OV - exec - Function __viscosity_kernel_module_MOD_viscosity_kernel._omp

	Function: __viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0	Module: exec	Source: viscosity_kernel.f90:50-89	Coverage (incl. loops): 2.26% \| (excl. loops): 0.00%

/home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90: 50 - 89

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

50:     !$OMP PARALLEL

51:

52:     !$OMP DO PRIVATE(ugrad,vgrad,div,strain2,pgradx,pgrady,pgradx2,pgrady2,limiter,pgrad,xgrad,ygrad,grad,grad2,dirx,diry)

53:     DO k=y_min,y_max

54:     !$OMP SIMD

55:       DO j=x_min,x_max

56:         ugrad=(xvel0(j+1,k  )+xvel0(j+1,k+1))-(xvel0(j  ,k  )+xvel0(j  ,k+1))

57:

58:         vgrad=(yvel0(j  ,k+1)+yvel0(j+1,k+1))-(yvel0(j  ,k  )+yvel0(j+1,k  ))

59:

60:         div = (celldx(j)*(ugrad)+  celldy(k)*(vgrad))

61:

62:         strain2 = 0.5_8*(xvel0(j,  k+1) + xvel0(j+1,k+1)-xvel0(j  ,k  )-xvel0(j+1,k  ))/celldy(k) &

63:           + 0.5_8*(yvel0(j+1,k  ) + yvel0(j+1,k+1)-yvel0(j  ,k  )-yvel0(j  ,k+1))/celldx(j)

64:

65:         pgradx=(pressure(j+1,k)-pressure(j-1,k))/(celldx(j)+celldx(j+1))

66:         pgrady=(pressure(j,k+1)-pressure(j,k-1))/(celldy(k)+celldy(k+1))

67:

68:         pgradx2 = pgradx*pgradx

69:         pgrady2 = pgrady*pgrady

70:

71:         limiter = ((0.5_8*(ugrad)/celldx(j))*pgradx2+(0.5_8*(vgrad)/celldy(k))*pgrady2+strain2*pgradx*pgrady)  &

72:           /MAX(pgradx2+pgrady2,1.0e-16_8)

73:

74:         IF ((limiter.GT.0.0).OR.(div.GE.0.0))THEN

75:           viscosity(j,k) = 0.0

76:         ELSE

77:           dirx=1.0_8

78:           IF(pgradx.LT.0.0) dirx=-1.0_8

79:           pgradx = dirx*MAX(1.0e-16_8,ABS(pgradx))

80:           diry=1.0_8

81:           IF(pgradx.LT.0.0) diry=-1.0_8

82:           pgrady = diry*MAX(1.0e-16_8,ABS(pgrady))

83:           pgrad = SQRT(pgradx**2+pgrady**2)

84:           xgrad = ABS(celldx(j)*pgrad/pgradx)

85:           ygrad = ABS(celldy(k)*pgrad/pgrady)

86:           grad  = MIN(xgrad,ygrad)

87:           grad2 = grad*grad

88:

89:           viscosity(j,k)=2.0_8*density0(j,k)*grad2*limiter*limiter

0x47d910 PUSH	%RBP

0x47d911 MOV	%RSP,%RBP

0x47d914 PUSH	%R15

0x47d916 PUSH	%R14

0x47d918 PUSH	%R13

0x47d91a PUSH	%R12

0x47d91c PUSH	%RBX

0x47d91d MOV	%RDI,%R12

0x47d920 SUB	$0x38,%RSP

0x47d924 MOV	0x10(%RDI),%RAX

0x47d928 MOV	(%RAX),%R14D

0x47d92b CALL	402380 <@plt_start@+0x360>

0x47d930 MOV	%EAX,%EBX

0x47d932 CALL	4022f0 <@plt_start@+0x2d0>

0x47d937 MOV	0x18(%R12),%RDX

0x47d93c MOV	%EAX,%ECX

0x47d93e MOV	(%RDX),%EAX

0x47d940 INC	%EAX

0x47d942 SUB	%R14D,%EAX

0x47d945 CLTD

0x47d946 IDIV	%EBX

0x47d948 CMP	%EDX,%ECX

0x47d94a JL	47de64

0x47d950 IMUL	%EAX,%ECX

0x47d953 ADD	%ECX,%EDX

0x47d955 ADD	%EDX,%EAX

0x47d957 CMP	%EAX,%EDX

0x47d959 JGE	47de55

0x47d95f MOV	(%R12),%RSI

0x47d963 MOV	0x8(%R12),%R8

0x47d968 MOV	0x68(%R12),%R11

0x47d96d ADD	%R14D,%EAX

0x47d970 ADD	%R14D,%EDX

0x47d973 MOV	%EAX,-0x4c(%RBP)

0x47d976 MOV	0x30(%R12),%RAX

0x47d97b MOV	0x48(%R12),%R15

0x47d980 MOVSXD	%EDX,%RDX

0x47d983 VMOVQ	0x78(%R12),%XMM17

0x47d98b MOV	0x50(%R12),%R10

0x47d990 VMOVQ	0x80(%R12),%XMM21

0x47d998 VMOVQ	0x38(%R12),%XMM18

0x47d9a0 VMOVSD	0x24f80(%RIP),%XMM6

0x47d9a8 VMOVD	(%R8),%XMM16

0x47d9ae MOV	(%RSI),%EDI

0x47d9b0 LEA	(,%R11,8),%R14

0x47d9b8 IMUL	%RDX,%R11

0x47d9bc VMOVQ	%R14,%XMM20

0x47d9c2 MOVSXD	%EDI,%RBX

0x47d9c5 MOV	%EDI,-0x48(%RBP)

0x47d9c8 VMOVD	%XMM16,%R9D

0x47d9ce MOV	%RBX,%RCX

0x47d9d1 ADD	0x70(%R12),%RCX

0x47d9d6 MOV	%RBX,%R14

0x47d9d9 LEA	0x1(%R9),%R8D

0x47d9dd MOV	0x88(%R12),%R9

0x47d9e5 ADD	0x90(%R12),%R14

0x47d9ed VMOVQ	%RBX,%XMM15

0x47d9f2 MOV	%R8D,-0x50(%RBP)

0x47d9f6 LEA	(%RCX,%R11,1),%RSI

0x47d9fa MOV	0x40(%R12),%RCX

0x47d9ff LEA	(%RAX,%RSI,8),%RDI

0x47da03 LEA	(,%R9,8),%R11

0x47da0b MOV	0x98(%R12),%RAX

0x47da13 IMUL	%RDX,%R9

0x47da17 VMOVQ	%R11,%XMM19

0x47da1d MOV	%RDI,-0x38(%RBP)

0x47da21 LEA	(%R14,%R9,1),%RBX

0x47da25 LEA	0x1(%RDX),%R14

0x47da29 LEA	(%RCX,%RBX,8),%R11

0x47da2d VMOVQ	%XMM15,%RBX

0x47da32 ADD	0xa0(%R12),%RBX

0x47da3a MOV	%RAX,%RDI

0x47da3d IMUL	%RDX,%RDI

0x47da41 LEA	(,%RAX,8),%RSI

0x47da49 MOV	%R14,-0x58(%RBP)

0x47da4d IMUL	%R14,%RAX

0x47da51 VMOVQ	%RSI,%XMM14

0x47da56 MOV	%R14,%RSI

0x47da59 ADD	%RBX,%RDI

0x47da5c ADD	%RBX,%RAX

0x47da5f VMOVQ	%XMM15,%RBX

0x47da64 ADD	0xb0(%R12),%RBX

0x47da6c LEA	(%R15,%RDI,8),%R9

0x47da70 LEA	(%R15,%RAX,8),%R15

0x47da74 MOV	0xa8(%R12),%RAX

0x47da7c MOV	%R15,-0x60(%RBP)

0x47da80 VMOVQ	%XMM21,%R15

0x47da86 IMUL	%RAX,%RSI

0x47da8a LEA	(,%RAX,8),%RCX

0x47da92 IMUL	%RDX,%RAX

0x47da96 VMOVQ	%RCX,%XMM13

0x47da9b VMOVQ	%XMM18,%RCX

0x47daa1 ADD	%RBX,%RSI

0x47daa4 ADD	%RBX,%RAX

0x47daa7 LEA	(%R10,%RSI,8),%RDI

0x47daab LEA	(%R10,%RAX,8),%RSI

0x47daaf VMOVQ	%XMM17,%R10

0x47dab5 VMOVQ	%XMM15,%RAX

0x47daba SAL	$0x3,%R10

0x47dabe LEA	(%R15,%RAX,1),%RBX

0x47dac2 VMOVQ	%R10,%XMM12

0x47dac7 VMOVQ	%XMM17,%R15

0x47dacd VMOVQ	%XMM17,%R10

0x47dad3 IMUL	%R15,%R14

0x47dad7 VMOVQ	%XMM18,%RAX

0x47dadd IMUL	%RDX,%R10

0x47dae1 ADD	%RBX,%R14

0x47dae4 ADD	%RBX,%R10

0x47dae7 VMOVQ	%XMM15,%RBX

0x47daec ADD	0x58(%R12),%RBX

0x47daf1 LEA	(%RCX,%R10,8),%RCX

0x47daf5 LEA	(%RAX,%R14,8),%R10

0x47daf9 MOV	0x20(%R12),%R14

0x47dafe MOV	0x28(%R12),%RAX

0x47db03 LEA	(%R14,%RBX,8),%R15

0x47db07 MOV	0x60(%R12),%RBX

0x47db0c LEA	(%RAX,%RBX,8),%R14

0x47db10 MOV	-0x48(%RBP),%EBX

0x47db13 VMOVD	%XMM16,%EAX

0x47db19 CMP	%EAX,%EBX

0x47db1b MOV	%EBX,%EAX

0x47db1d CMOVLE	%R8D,%EAX

0x47db21 VMOVD	%XMM16,%R8D

0x47db27 SUB	%EBX,%R8D

0x47db2a MOV	%EAX,-0x44(%RBP)

0x47db2d XOR	%EAX,%EAX

0x47db2f VMOVSD	0x251a9(%RIP),%XMM10

0x47db37 MOV	%R8,%RBX

0x47db3a MOV	%AL,-0x40(%RBP)

0x47db3d MOV	-0x60(%RBP),%R8

0x47db41 VMOVD	%XMM16,%EAX

0x47db47 MOV	%R12,-0x60(%RBP)

0x47db4b VMOVQ	0x247ad(%RIP),%XMM11

0x47db53 MOV	%R13D,%R12D

0x47db56 VMOVSD	0x24dc0(%RIP),%XMM22

0x47db60 MOV	%R15,%R13

0x47db63 VMOVQ	0x24de3(%RIP),%XMM23

0x47db6d MOV	%R14,%R15

0x47db70 MOV	-0x58(%RBP),%R14

0x47db74 CMP	%EAX,-0x48(%RBP)

0x47db77 JG	47de0b

0x47db7d NOPL	(%RAX)

  (893) 0x47db80 LEA	-0x1(%RDX),%EAX

  (893) 0x47db83 VMOVQ	%XMM17,%R12

  (893) 0x47db89 MOV	%R14,-0x40(%RBP)

  (893) 0x47db8d VXORPD	%XMM9,%XMM9,%XMM9

  (893) 0x47db92 CLTQ

  (893) 0x47db94 IMUL	%R12,%RAX

  (893) 0x47db98 VMOVQ	%XMM21,%R12

  (893) 0x47db9e ADD	%R12,%RAX

  (893) 0x47dba1 VMOVQ	%XMM15,%R12

  (893) 0x47dba6 ADD	%R12,%RAX

  (893) 0x47dba9 VMOVQ	%XMM18,%R12

  (893) 0x47dbaf LEA	(%R12,%RAX,8),%R12

  (893) 0x47dbb3 XOR	%EAX,%EAX

  (893) 0x47dbb5 MOV	%R12,%R14

  (893) 0x47dbb8 JMP	47dbd8

0x47dbba NOPW	(%RAX,%RAX,1)

    (894) 0x47dbc0 LEA	0x1(%RAX),%R12

    (894) 0x47dbc4 MOVQ	$0,(%R11,%RAX,8)

    (894) 0x47dbcc CMP	%RAX,%RBX

    (894) 0x47dbcf JE	47ddb0

    (894) 0x47dbd5 MOV	%R12,%RAX

    (894) 0x47dbd8 VMOVSD	0x8(%R9,%RAX,8),%XMM27

    (894) 0x47dbe0 VMOVSD	(%R9,%RAX,8),%XMM28

    (894) 0x47dbe7 VMOVSD	(%R8,%RAX,8),%XMM29

    (894) 0x47dbee VMOVSD	(%RDI,%RAX,8),%XMM24

    (894) 0x47dbf5 VADDSD	%XMM29,%XMM28,%XMM3

    (894) 0x47dbfb VMOVSD	(%RSI,%RAX,8),%XMM25

    (894) 0x47dc02 VMOVSD	0x8(%RSI,%RAX,8),%XMM26

    (894) 0x47dc0a VMOVSD	(%R13,%RAX,8),%XMM2

    (894) 0x47dc11 VADDSD	%XMM26,%XMM25,%XMM30

    (894) 0x47dc17 VMOVSD	(%R15,%RDX,8),%XMM8

    (894) 0x47dc1d VMOVSD	0x8(%R8,%RAX,8),%XMM1

    (894) 0x47dc24 VMOVSD	0x8(%RDI,%RAX,8),%XMM0

    (894) 0x47dc2a VADDSD	%XMM1,%XMM27,%XMM5

    (894) 0x47dc30 VADDSD	%XMM0,%XMM24,%XMM4

    (894) 0x47dc36 VSUBSD	%XMM3,%XMM5,%XMM7

    (894) 0x47dc3a VADDSD	%XMM29,%XMM1,%XMM1

    (894) 0x47dc40 VSUBSD	%XMM30,%XMM4,%XMM3

    (894) 0x47dc46 VSUBSD	%XMM28,%XMM1,%XMM5

    (894) 0x47dc4c VADDSD	%XMM26,%XMM0,%XMM0

    (894) 0x47dc52 VSUBSD	%XMM27,%XMM5,%XMM4

    (894) 0x47dc58 VMOVSD	0x8(%RCX,%RAX,8),%XMM31

    (894) 0x47dc60 VMULSD	%XMM6,%XMM4,%XMM1

    (894) 0x47dc64 VSUBSD	-0x8(%RCX,%RAX,8),%XMM31,%XMM27

    (894) 0x47dc6c VSUBSD	%XMM25,%XMM0,%XMM4

    (894) 0x47dc72 VDIVSD	%XMM8,%XMM1,%XMM5

    (894) 0x47dc77 VADDSD	0x8(%R15,%RDX,8),%XMM8,%XMM28

    (894) 0x47dc7f VSUBSD	%XMM24,%XMM4,%XMM1

    (894) 0x47dc85 VMULSD	%XMM6,%XMM7,%XMM31

    (894) 0x47dc8b VMULSD	%XMM6,%XMM1,%XMM0

    (894) 0x47dc8f VADDSD	0x8(%R13,%RAX,8),%XMM2,%XMM1

    (894) 0x47dc96 VDIVSD	%XMM2,%XMM0,%XMM4

    (894) 0x47dc9a VDIVSD	%XMM1,%XMM27,%XMM24

    (894) 0x47dca0 VADDSD	%XMM4,%XMM5,%XMM5

    (894) 0x47dca4 VMOVSD	(%R10,%RAX,8),%XMM0

    (894) 0x47dcaa VMULSD	%XMM24,%XMM24,%XMM30

    (894) 0x47dcb0 VSUBSD	(%R14,%RAX,8),%XMM0,%XMM4

    (894) 0x47dcb6 VDIVSD	%XMM2,%XMM31,%XMM27

    (894) 0x47dcbc VDIVSD	%XMM28,%XMM4,%XMM1

    (894) 0x47dcc2 VMULSD	%XMM6,%XMM3,%XMM28

    (894) 0x47dcc8 VMULSD	%XMM1,%XMM1,%XMM29

    (894) 0x47dcce VADDSD	%XMM29,%XMM30,%XMM25

    (894) 0x47dcd4 VMAXSD	%XMM10,%XMM25,%XMM26

    (894) 0x47dcda VDIVSD	%XMM8,%XMM28,%XMM25

    (894) 0x47dce0 VMULSD	%XMM29,%XMM25,%XMM29

    (894) 0x47dce6 VFMADD132SD	%XMM27,%XMM29,%XMM30

    (894) 0x47dcec VMULSD	%XMM24,%XMM5,%XMM5

    (894) 0x47dcf2 VFMADD132SD	%XMM1,%XMM30,%XMM5

    (894) 0x47dcf8 VDIVSD	%XMM26,%XMM5,%XMM0

    (894) 0x47dcfe VCOMISD	%XMM9,%XMM0

    (894) 0x47dd03 JA	47dbc0

    (894) 0x47dd09 VMULSD	%XMM7,%XMM2,%XMM7

    (894) 0x47dd0d VFMADD132SD	%XMM8,%XMM7,%XMM3

    (894) 0x47dd12 VCOMISD	%XMM9,%XMM3

    (894) 0x47dd17 JAE	47dbc0

    (894) 0x47dd1d VANDPD	%XMM11,%XMM24,%XMM3

    (894) 0x47dd23 VCOMISD	%XMM24,%XMM9

    (894) 0x47dd29 VMAXSD	%XMM10,%XMM3,%XMM4

    (894) 0x47dd2e JA	47de20

    (894) 0x47dd34 VMOVAPD	%XMM22,%XMM24

    (894) 0x47dd3a VANDPD	%XMM11,%XMM1,%XMM1

    (894) 0x47dd3f MOV	-0x38(%RBP),%R12

    (894) 0x47dd43 VMAXSD	%XMM10,%XMM1,%XMM7

    (894) 0x47dd48 VMULSD	%XMM7,%XMM24,%XMM30

    (894) 0x47dd4e VMULSD	%XMM30,%XMM30,%XMM3

    (894) 0x47dd54 VFMADD231SD	%XMM4,%XMM4,%XMM3

    (894) 0x47dd59 VSQRTSD	%XMM3,%XMM3,%XMM3

    (894) 0x47dd5d VMULSD	%XMM3,%XMM2,%XMM2

    (894) 0x47dd61 VMULSD	%XMM3,%XMM8,%XMM8

    (894) 0x47dd65 VDIVSD	%XMM4,%XMM2,%XMM4

    (894) 0x47dd69 VDIVSD	%XMM30,%XMM8,%XMM1

    (894) 0x47dd6f VANDPD	%XMM11,%XMM4,%XMM5

    (894) 0x47dd74 VANDPD	%XMM11,%XMM1,%XMM7

    (894) 0x47dd79 VMOVSD	(%R12,%RAX,8),%XMM2

    (894) 0x47dd7f VMINSD	%XMM7,%XMM5,%XMM3

    (894) 0x47dd83 VADDSD	%XMM2,%XMM2,%XMM4

    (894) 0x47dd87 VMULSD	%XMM3,%XMM3,%XMM5

    (894) 0x47dd8b LEA	0x1(%RAX),%R12

    (894) 0x47dd8f VMULSD	%XMM5,%XMM4,%XMM8

    (894) 0x47dd93 VMULSD	%XMM0,%XMM8,%XMM1

    (894) 0x47dd97 VMULSD	%XMM0,%XMM1,%XMM0

    (894) 0x47dd9b VMOVSD	%XMM0,(%R11,%RAX,8)

    (894) 0x47dda1 CMP	%RAX,%RBX

    (894) 0x47dda4 JNE	47dbd5

  (893) 0x47ddaa NOPW	(%RAX,%RAX,1)

  (893) 0x47ddb0 MOV	-0x40(%RBP),%R14

  (893) 0x47ddb4 MOV	-0x44(%RBP),%R12D

  (893) 0x47ddb8 MOVB	$0x1,-0x40(%RBP)

  (893) 0x47ddbc VMOVQ	%XMM20,%RAX

  (893) 0x47ddc2 ADD	%RAX,-0x38(%RBP)

  (893) 0x47ddc6 VMOVQ	%XMM19,%RAX

  (893) 0x47ddcc MOV	%R14,%RDX

  (893) 0x47ddcf ADD	%RAX,%R11

  (893) 0x47ddd2 VMOVQ	%XMM14,%RAX

  (893) 0x47ddd7 ADD	%RAX,%R9

  (893) 0x47ddda ADD	%RAX,%R8

  (893) 0x47dddd VMOVQ	%XMM13,%RAX

  (893) 0x47dde2 ADD	%RAX,%RDI

  (893) 0x47dde5 ADD	%RAX,%RSI

  (893) 0x47dde8 VMOVQ	%XMM12,%RAX

  (893) 0x47dded ADD	%RAX,%RCX

  (893) 0x47ddf0 ADD	%RAX,%R10

  (893) 0x47ddf3 CMP	%R14D,-0x4c(%RBP)

  (893) 0x47ddf7 JLE	47de40

  (893) 0x47ddf9 INC	%R14

  (893) 0x47ddfc VMOVD	%XMM16,%EAX

  (893) 0x47de02 CMP	%EAX,-0x48(%RBP)

  (893) 0x47de05 JLE	47db80

(895) 0x47de0b MOV	-0x44(%RBP),%EDX

(895) 0x47de0e CMP	%EDX,-0x50(%RBP)

(895) 0x47de11 JNE	47ddbc

(895) 0x47de13 JMP	47ddb4

0x47de15 NOPW	%CS:(%RAX,%RAX,1)

    (894) 0x47de20 VXORPD	%XMM23,%XMM4,%XMM5

    (894) 0x47de26 VCOMISD	%XMM9,%XMM4

    (894) 0x47de2b VMOVAPD	%XMM5,%XMM4

    (894) 0x47de2f JBE	47de6d

    (894) 0x47de31 VMOVSD	0x24af5(%RIP),%XMM24

    (894) 0x47de3b JMP	47dd3a

0x47de40 MOVZX	-0x40(%RBP),%R9D

0x47de45 MOV	-0x60(%RBP),%RDI

0x47de49 TEST	%R9B,%R9B

0x47de4c JE	47de55

0x47de4e MOV	%R12D,0xb8(%RDI)

0x47de55 ADD	$0x38,%RSP

0x47de59 POP	%RBX

0x47de5a POP	%R12

0x47de5c POP	%R13

0x47de5e POP	%R14

0x47de60 POP	%R15

0x47de62 POP	%RBP

0x47de63 RET

0x47de64 INC	%EAX

0x47de66 XOR	%EDX,%EDX

0x47de68 JMP	47d950

    (894) 0x47de6d VMOVSD	0x24aa9(%RIP),%XMM24

    (894) 0x47de77 JMP	47dd3a

0x47de7c NOPL	(%RAX)

Coverage (%)	Name	Source Location	Module
►95.67+	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►4.15+	GOMP_parallel	libgomp.h:982	libgomp.so.1.0.0
○	viscosity_kernel	viscosity_kernel.f90:98	exec
○	viscosity	viscosity.f90:38	exec
○	timestep	timestep.f90:76	exec
○	hydro	hydro.f90:54	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 /

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 gcc_0

Source file and lines	viscosity_kernel.f90:50-89
Module	exec

The function is defined in /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:50-89.

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 20.00 to 7.00 cycles (2.86x speedup).

Workaround

Try to reorganize arrays of structures to structures of arrays
Consider to permute loops (see vectorization gain report)
To reference allocatable arrays, use "allocatable" instead of "pointer" pointers or qualify them with the "contiguous" attribute (Fortran 2008)
For structures, limit to one indirection. For example, use a_b%c instead of a%b%c with a_b set to a%b before this function

Vectorization

Your function is not vectorized. Only 10% of vector register length is used (average across all SSE/AVX instructions). By vectorizing your function, you can lower the cost of an iteration from 20.00 to 1.36 cycles (14.72x 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 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): 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

CALL instructions

Detected function call instructions.

Details

Calling (and then returning from) a function prevents many compiler optimizations (like vectorization), breaks control flow (which reduces pipeline performance) and executes extra instructions to save/restore the registers used inside it, which is very expensive (dozens of cycles). Consider to inline small functions.

unknown: 2 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:52
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:52

Complex instructions

Detected COMPLEX INSTRUCTIONS.

Details

These instructions generate more than one micro-operation and only one of them can be decoded during a cycle and the extra micro-operations increase pressure on execution units.

CMOVLE: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:54
IDIV: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:52

Conversion instructions

Detected expensive conversion instructions.

Details

CLTD: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:52
MOVZX: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:81

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 function is probably writing/copying data or processing integer elements.

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 273 bytes. The binary function is storing 53 bytes.

General properties

nb instructions	161
nb uops	160
loop length	690
used x86 registers	16
used mmx registers	0
used xmm registers	15
used ymm registers	0
used zmm registers	0
nb stack references	8

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	20.00 cycles
front end	20.00 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15
uops	12.67	12.67	12.67	12.67	12.67	12.67	12.50	12.50	12.50	12.50	0.00	0.00	0.00	0.00	7.00	7.00
cycles	12.67	12.67	12.67	12.67	12.67	12.67	12.50	12.50	12.50	12.50	0.00	0.00	0.00	0.00	7.00	7.00

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

6.00

Cycles summary

Front-end	20.00
Dispatch	12.67
DIV/SQRT	6.00
Overall L1	20.00

Vectorization ratios

INT

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

all	0%
load	0%
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)
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	0%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	0%
other	0%

Vector efficiency ratios

INT

all	10%
load	10%
store	9%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	12%
fma	NA (no fma vectorizable/vectorized instructions)
other	10%

all	12%
load	12%
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)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

INT+FP

all	10%
load	11%
store	9%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	12%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	6%
other	10%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 20.00 cycles. At this rate:

5% of peak load performance is reached (13.65 out of 256.00 bytes loaded per cycle (GB/s @ 1GHz))
2% of peak store performance is reached (2.65 out of 128.00 bytes stored 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). By removing all these bottlenecks, you can lower the cost of an iteration from 20.00 to 12.67 cycles (1.58x speedup).

ASM code

In the binary file, the address of the function is: 47d910

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15	Latency	Recip. throughput	Vectorization
PUSH %RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
MOV %RSP,%RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
PUSH %R15	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R14	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R13	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R12	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
MOV %RDI,%R12	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
SUB $0x38,%RSP	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 (12.5%)
MOV 0x10(%RDI),%RAX	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 (%RAX),%R14D	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
CALL 402380 <@plt_start@+0x360>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0.50	N/A
MOV %EAX,%EBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4022f0 <@plt_start@+0x2d0>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0.50	N/A
MOV 0x18(%R12),%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 %EAX,%ECX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV (%RDX),%EAX	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
INC %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
SUB %R14D,%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
CLTD																				scal (6.3%)
IDIV %EBX	2	0	0	0	2	0	0	0	0	0	0	0	0	0	0	0	0	9-14	6	scal (6.3%)
CMP %EDX,%ECX	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 47de64 <__viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0+0x554>	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
IMUL %EAX,%ECX	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 %ECX,%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 %EDX,%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
CMP %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	scal (6.3%)
JGE 47de55 <__viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0+0x545>	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 (%R12),%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
MOV 0x8(%R12),%R8	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 0x68(%R12),%R11	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 %R14D,%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 %R14D,%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
MOV %EAX,-0x4c(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (6.3%)
MOV 0x30(%R12),%RAX	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 0x48(%R12),%R15	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,%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 0x78(%R12),%XMM17	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 0x50(%R12),%R10	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 0x80(%R12),%XMM21	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 0x38(%R12),%XMM18	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 0x24f80(%RIP),%XMM6	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%)
VMOVD (%R8),%XMM16	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	8	0.50	scal (6.3%)
MOV (%RSI),%EDI	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
LEA (,%R11,8),%R14	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
IMUL %RDX,%R11	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
VMOVQ %R14,%XMM20	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
MOVSXD %EDI,%RBX	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
MOV %EDI,-0x48(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (6.3%)
VMOVD %XMM16,%R9D	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 %RBX,%RCX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
ADD 0x70(%R12),%RCX	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
MOV %RBX,%R14	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
LEA 0x1(%R9),%R8D	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(%R12),%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
ADD 0x90(%R12),%R14	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
VMOVQ %RBX,%XMM15	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
MOV %R8D,-0x50(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (6.3%)
LEA (%RCX,%R11,1),%RSI	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 0x40(%R12),%RCX	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
LEA (%RAX,%RSI,8),%RDI	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
LEA (,%R9,8),%R11	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 0x98(%R12),%RAX	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
IMUL %RDX,%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
VMOVQ %R11,%XMM19	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
MOV %RDI,-0x38(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (12.5%)
LEA (%R14,%R9,1),%RBX	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
LEA 0x1(%RDX),%R14	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
LEA (%RCX,%RBX,8),%R11	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
VMOVQ %XMM15,%RBX	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 0xa0(%R12),%RBX	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
MOV %RAX,%RDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
IMUL %RDX,%RDI	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
LEA (,%RAX,8),%RSI	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 %R14,-0x58(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (12.5%)
IMUL %R14,%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
VMOVQ %RSI,%XMM14	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
MOV %R14,%RSI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
ADD %RBX,%RDI	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 %RBX,%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
VMOVQ %XMM15,%RBX	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 0xb0(%R12),%RBX	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
LEA (%R15,%RDI,8),%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	0.25	N/A
LEA (%R15,%RAX,8),%R15	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 0xa8(%R12),%RAX	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 %R15,-0x60(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (12.5%)
VMOVQ %XMM21,%R15	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 %RAX,%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
LEA (,%RAX,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
IMUL %RDX,%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
VMOVQ %RCX,%XMM13	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
VMOVQ %XMM18,%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 %RBX,%RSI	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 %RBX,%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
LEA (%R10,%RSI,8),%RDI	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
LEA (%R10,%RAX,8),%RSI	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
VMOVQ %XMM17,%R10	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%)
VMOVQ %XMM15,%RAX	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%)
SAL $0x3,%R10	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
LEA (%R15,%RAX,1),%RBX	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
VMOVQ %R10,%XMM12	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
VMOVQ %XMM17,%R15	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%)
VMOVQ %XMM17,%R10	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 %R15,%R14	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
VMOVQ %XMM18,%RAX	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 %RDX,%R10	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 %RBX,%R14	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 %RBX,%R10	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 %XMM15,%RBX	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 0x58(%R12),%RBX	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
LEA (%RCX,%R10,8),%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
LEA (%RAX,%R14,8),%R10	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 0x20(%R12),%R14	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 0x28(%R12),%RAX	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
LEA (%R14,%RBX,8),%R15	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 0x60(%R12),%RBX	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
LEA (%RAX,%RBX,8),%R14	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 -0x48(%RBP),%EBX	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
VMOVD %XMM16,%EAX	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%)
CMP %EAX,%EBX	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%)
MOV %EBX,%EAX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CMOVLE %R8D,%EAX	2	0.33	0.33	0.33	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
VMOVD %XMM16,%R8D	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%)
SUB %EBX,%R8D	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
MOV %EAX,-0x44(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (6.3%)
XOR %EAX,%EAX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.25	N/A
VMOVSD 0x251a9(%RIP),%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%)
MOV %R8,%RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV %AL,-0x40(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	N/A
MOV -0x60(%RBP),%R8	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
VMOVD %XMM16,%EAX	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 %R12,-0x60(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (12.5%)
VMOVQ 0x247ad(%RIP),%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 %R13D,%R12D	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
VMOVSD 0x24dc0(%RIP),%XMM22	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 %R15,%R13	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
VMOVQ 0x24de3(%RIP),%XMM23	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 %R14,%R15	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV -0x58(%RBP),%R14	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
CMP %EAX,-0x48(%RBP)	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	scal (6.3%)
JG 47de0b <__viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0+0x4fb>	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
NOPL (%RAX)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
NOPW (%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
NOPW %CS:(%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOVZX -0x40(%RBP),%R9D	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
MOV -0x60(%RBP),%RDI	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
TEST %R9B,%R9B	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
JE 47de55 <__viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0+0x545>	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 %R12D,0xb8(%RDI)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (6.3%)
ADD $0x38,%RSP	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 (12.5%)
POP %RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R12	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R13	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R14	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R15	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
RET	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
INC %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
XOR %EDX,%EDX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.25	N/A
JMP 47d950 <__viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0+0x40>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	1	N/A
NOPL (%RAX)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A

The code analyzed by CQA in that panel excludes loops and represents 0.00% of application time for run gcc_0

Source file and lines	viscosity_kernel.f90:50-89
Module	exec

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 20.00 to 7.00 cycles (2.86x speedup).

Workaround

Try to reorganize arrays of structures to structures of arrays
Consider to permute loops (see vectorization gain report)
To reference allocatable arrays, use "allocatable" instead of "pointer" pointers or qualify them with the "contiguous" attribute (Fortran 2008)
For structures, limit to one indirection. For example, use a_b%c instead of a%b%c with a_b set to a%b before this function

Vectorization

Details

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): 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

CALL instructions

Detected function call instructions.

Details

unknown: 2 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:52
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:52

Complex instructions

Detected COMPLEX INSTRUCTIONS.

Details

These instructions generate more than one micro-operation and only one of them can be decoded during a cycle and the extra micro-operations increase pressure on execution units.

CMOVLE: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:54
IDIV: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:52

Conversion instructions

Detected expensive conversion instructions.

Details

CLTD: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:52
MOVZX: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/174-049-0948/intel/CloverLeaf1.3-FC/build/CloverLeaf1.3-FC/CloverLeaf_ref/kernels/viscosity_kernel.f90:81

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 function is probably writing/copying data or processing integer elements.

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 273 bytes. The binary function is storing 53 bytes.

General properties

nb instructions	161
nb uops	160
loop length	690
used x86 registers	16
used mmx registers	0
used xmm registers	15
used ymm registers	0
used zmm registers	0
nb stack references	8

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	20.00 cycles
front end	20.00 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15
uops	12.67	12.67	12.67	12.67	12.67	12.67	12.50	12.50	12.50	12.50	0.00	0.00	0.00	0.00	7.00	7.00
cycles	12.67	12.67	12.67	12.67	12.67	12.67	12.50	12.50	12.50	12.50	0.00	0.00	0.00	0.00	7.00	7.00

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

6.00

Cycles summary

Front-end	20.00
Dispatch	12.67
DIV/SQRT	6.00
Overall L1	20.00

Vectorization ratios

INT

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

all	0%
load	0%
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)
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	0%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	0%
other	0%

Vector efficiency ratios

INT

all	10%
load	10%
store	9%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	12%
fma	NA (no fma vectorizable/vectorized instructions)
other	10%

all	12%
load	12%
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)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	NA (no other vectorizable/vectorized instructions)

INT+FP

all	10%
load	11%
store	9%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	12%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	6%
other	10%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 20.00 cycles. At this rate:

5% of peak load performance is reached (13.65 out of 256.00 bytes loaded per cycle (GB/s @ 1GHz))
2% of peak store performance is reached (2.65 out of 128.00 bytes stored per cycle (GB/s @ 1GHz))

Front-end bottlenecks

ASM code

In the binary file, the address of the function is: 47d910

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15	Latency	Recip. throughput	Vectorization
PUSH %RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
MOV %RSP,%RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
PUSH %R15	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R14	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R13	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R12	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
MOV %RDI,%R12	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
SUB $0x38,%RSP	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 (12.5%)
MOV 0x10(%RDI),%RAX	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 (%RAX),%R14D	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
CALL 402380 <@plt_start@+0x360>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0.50	N/A
MOV %EAX,%EBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4022f0 <@plt_start@+0x2d0>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0.50	N/A
MOV 0x18(%R12),%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 %EAX,%ECX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV (%RDX),%EAX	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
INC %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
SUB %R14D,%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
CLTD																				scal (6.3%)
IDIV %EBX	2	0	0	0	2	0	0	0	0	0	0	0	0	0	0	0	0	9-14	6	scal (6.3%)
CMP %EDX,%ECX	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 47de64 <__viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0+0x554>	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
IMUL %EAX,%ECX	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 %ECX,%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 %EDX,%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
CMP %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	scal (6.3%)
JGE 47de55 <__viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0+0x545>	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 (%R12),%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
MOV 0x8(%R12),%R8	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 0x68(%R12),%R11	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 %R14D,%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 %R14D,%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
MOV %EAX,-0x4c(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (6.3%)
MOV 0x30(%R12),%RAX	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 0x48(%R12),%R15	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,%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 0x78(%R12),%XMM17	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 0x50(%R12),%R10	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 0x80(%R12),%XMM21	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 0x38(%R12),%XMM18	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 0x24f80(%RIP),%XMM6	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%)
VMOVD (%R8),%XMM16	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	8	0.50	scal (6.3%)
MOV (%RSI),%EDI	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
LEA (,%R11,8),%R14	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
IMUL %RDX,%R11	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
VMOVQ %R14,%XMM20	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
MOVSXD %EDI,%RBX	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
MOV %EDI,-0x48(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (6.3%)
VMOVD %XMM16,%R9D	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 %RBX,%RCX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
ADD 0x70(%R12),%RCX	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
MOV %RBX,%R14	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
LEA 0x1(%R9),%R8D	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(%R12),%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
ADD 0x90(%R12),%R14	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
VMOVQ %RBX,%XMM15	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
MOV %R8D,-0x50(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (6.3%)
LEA (%RCX,%R11,1),%RSI	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 0x40(%R12),%RCX	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
LEA (%RAX,%RSI,8),%RDI	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
LEA (,%R9,8),%R11	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 0x98(%R12),%RAX	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
IMUL %RDX,%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
VMOVQ %R11,%XMM19	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
MOV %RDI,-0x38(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (12.5%)
LEA (%R14,%R9,1),%RBX	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
LEA 0x1(%RDX),%R14	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
LEA (%RCX,%RBX,8),%R11	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
VMOVQ %XMM15,%RBX	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 0xa0(%R12),%RBX	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
MOV %RAX,%RDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
IMUL %RDX,%RDI	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
LEA (,%RAX,8),%RSI	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 %R14,-0x58(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (12.5%)
IMUL %R14,%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
VMOVQ %RSI,%XMM14	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
MOV %R14,%RSI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
ADD %RBX,%RDI	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 %RBX,%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
VMOVQ %XMM15,%RBX	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 0xb0(%R12),%RBX	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
LEA (%R15,%RDI,8),%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	0.25	N/A
LEA (%R15,%RAX,8),%R15	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 0xa8(%R12),%RAX	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 %R15,-0x60(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (12.5%)
VMOVQ %XMM21,%R15	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 %RAX,%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
LEA (,%RAX,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
IMUL %RDX,%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
VMOVQ %RCX,%XMM13	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
VMOVQ %XMM18,%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 %RBX,%RSI	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 %RBX,%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
LEA (%R10,%RSI,8),%RDI	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
LEA (%R10,%RAX,8),%RSI	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
VMOVQ %XMM17,%R10	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%)
VMOVQ %XMM15,%RAX	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%)
SAL $0x3,%R10	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
LEA (%R15,%RAX,1),%RBX	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
VMOVQ %R10,%XMM12	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
VMOVQ %XMM17,%R15	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%)
VMOVQ %XMM17,%R10	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 %R15,%R14	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
VMOVQ %XMM18,%RAX	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 %RDX,%R10	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 %RBX,%R14	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 %RBX,%R10	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 %XMM15,%RBX	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 0x58(%R12),%RBX	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
LEA (%RCX,%R10,8),%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
LEA (%RAX,%R14,8),%R10	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 0x20(%R12),%R14	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 0x28(%R12),%RAX	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
LEA (%R14,%RBX,8),%R15	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 0x60(%R12),%RBX	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
LEA (%RAX,%RBX,8),%R14	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 -0x48(%RBP),%EBX	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
VMOVD %XMM16,%EAX	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%)
CMP %EAX,%EBX	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%)
MOV %EBX,%EAX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CMOVLE %R8D,%EAX	2	0.33	0.33	0.33	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
VMOVD %XMM16,%R8D	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%)
SUB %EBX,%R8D	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
MOV %EAX,-0x44(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (6.3%)
XOR %EAX,%EAX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.25	N/A
VMOVSD 0x251a9(%RIP),%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%)
MOV %R8,%RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV %AL,-0x40(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	N/A
MOV -0x60(%RBP),%R8	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
VMOVD %XMM16,%EAX	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 %R12,-0x60(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (12.5%)
VMOVQ 0x247ad(%RIP),%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 %R13D,%R12D	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
VMOVSD 0x24dc0(%RIP),%XMM22	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 %R15,%R13	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
VMOVQ 0x24de3(%RIP),%XMM23	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 %R14,%R15	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV -0x58(%RBP),%R14	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
CMP %EAX,-0x48(%RBP)	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	scal (6.3%)
JG 47de0b <__viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0+0x4fb>	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
NOPL (%RAX)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
NOPW (%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
NOPW %CS:(%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOVZX -0x40(%RBP),%R9D	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
MOV -0x60(%RBP),%RDI	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
TEST %R9B,%R9B	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
JE 47de55 <__viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0+0x545>	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 %R12D,0xb8(%RDI)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	4	0.50	scal (6.3%)
ADD $0x38,%RSP	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 (12.5%)
POP %RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R12	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R13	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R14	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R15	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
RET	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
INC %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
XOR %EDX,%EDX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.25	N/A
JMP 47d950 <__viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0+0x40>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	0	0	0	0	1	N/A
NOPL (%RAX)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A

Name	Coverage (%)	Time (s)
▼__viscosity_kernel_module_MOD_viscosity_kernel._omp_fn.0–	2.26	0.85
▼Loop 895 - viscosity_kernel.f90:54-89 - exec–	0.00	0.00
▼Loop 893 - viscosity_kernel.f90:54-89 - exec–	0.00	0.00
○Loop 894 - viscosity_kernel.f90:54-89 - exec	2.26	0.85

Report Configuration

Code clean check

Workaround

Vectorization

Details

Workaround

Execution units bottlenecks

CALL instructions

Details

Complex instructions

Details

Conversion instructions

Details

Workaround

Type of elements and instruction set

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

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Vector efficiency ratios

Cycles and memory resources usage

Front-end bottlenecks

ASM code

Code clean check

Workaround

Vectorization

Details

Workaround

Execution units bottlenecks

CALL instructions

Details

Complex instructions

Details

Conversion instructions

Details

Workaround

Type of elements and instruction set

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

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Vector efficiency ratios

Cycles and memory resources usage

Front-end bottlenecks

ASM code