OV - exec - Function reset_field_kernel(int, int, int, int, clover::Buffer2D<double>&, clover::Buffer2D<double>&, clover::Buffer2D<double>&, clover::Buffer2D<double>&, clover::Buffer2D<double>&, clover::Buffer2D<double>&, clover::Buffer2D<double>&, clover::Buffer2D<double>&) [clone ._omp

	Function: reset_field_kernel(int, int, int, int, clover::Buffer2D<double>&, clover::Buffer2D<double> ...	Module: exec	Source: reset_field.cpp:44-48 [...]	Coverage (incl. loops): 0.92% \| (excl. loops): 0.00%

/home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/context.h: 69 - 69

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

69:   T &operator()(size_t i, size_t j) const { return data[i + j * sizeX]; }

/home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/reset_field.cpp: 44 - 48

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

44: #pragma omp parallel for simd collapse(2)

45:   for (int j = (y_min + 1); j < (y_max + 1 + 2); j++) {

46:     for (int i = (x_min + 1); i < (x_max + 1 + 2); i++) {

47:       xvel0(i, j) = xvel1(i, j);

48:       yvel0(i, j) = yvel1(i, j);

0x43e600 STP	X29, X30, [SP, #912]!

0x43e604 ADD	X29, SP, #0

0x43e608 STP	X19, X20, [SP, #16]

0x43e60c STP	X25, X26, [SP, #64]

0x43e610 ORR	X26, XZR, X0

0x43e614 STP	X27, X28, [SP, #80]

0x43e618 LDP	W27, W19, [X0, #40]

0x43e61c LDR	W25, [X26, #36]

0x43e620 LDR	W0, [X0, #32]

0x43e624 ADD	W28, W27, #1

0x43e628 ADD	W19, W19, #3

0x43e62c CMP	W28, W19

0x43e630 B.GE	43e91c

0x43e634 STP	X21, X22, [SP, #32]

0x43e638 ADD	W22, W25, #3

0x43e63c SUB	W21, W19, W28

0x43e640 STP	X23, X24, [SP, #48]

0x43e644 ADD	W23, W0, #1

0x43e648 CMP	W23, W22

0x43e64c B.GE	43e914

0x43e650 SUB	W24, W22, W23

0x43e654 BL	410210

0x43e658 MUL	W27, W21, W24

0x43e65c ORR	W20, WZR, W0

0x43e660 BL	410240

0x43e664 ORR	W2, WZR, W0

0x43e668 UDIV	W1, W27, W20

0x43e66c MSUB	W3, W1, W20, W27

0x43e670 CMP	W0, W3

0x43e674 B.CC	43e930

0x43e678 MADD	W15, W1, W2, W3

0x43e67c ADD	W4, W1, W15

0x43e680 STR	W4, [SP, #100]

0x43e684 CMP	W15, W4

0x43e688 B.CS	43e914

0x43e68c UDIV	W5, W15, W24

0x43e690 LDP	X20, X30, [X26, #16]

0x43e694 MSUB	W6, W5, W24, W15

0x43e698 ADD	W7, W5, W28

0x43e69c SBFM	X7, X7, #0, #31

0x43e6a0 ADD	W6, W6, W23

0x43e6a4 SUB	W18, W22, W6

0x43e6a8 LDP	X22, X21, [X26]

(300) 0x43e6ac CMP	W1, W18

(300) 0x43e6b0 CSEL	W5, W1, W18, #9

(300) 0x43e6b4 ADD	W12, W15, W5

(300) 0x43e6b8 CMP	W15, W12

(300) 0x43e6bc B.CS	43e8f4

(300) 0x43e6c0 LDR	X13, [X20]

(300) 0x43e6c4 LDR	X11, [X21]

(300) 0x43e6c8 LDR	X10, [X22]

(300) 0x43e6cc MUL	X13, X7, X13

(300) 0x43e6d0 LDR	X9, [X30]

(300) 0x43e6d4 MUL	X11, X7, X11

(300) 0x43e6d8 LDR	X15, [X20, #16]

(300) 0x43e6dc MUL	X10, X7, X10

(300) 0x43e6e0 LDR	X18, [X21, #16]

(300) 0x43e6e4 MUL	X9, X7, X9

(300) 0x43e6e8 LDR	X17, [X22, #16]

(300) 0x43e6ec LDR	X16, [X30, #16]

(300) 0x43e6f0 CMP	W5, #1

(300) 0x43e6f4 B.EQ	43e8cc

(300) 0x43e6f8 UBFM	W8, W5, #1, #31

(300) 0x43e6fc SBFM	X25, X6, #0, #31

(300) 0x43e700 UBFM	X8, X8, #60, #59

(300) 0x43e704 ADD	X28, X11, X25

(300) 0x43e708 SUB	X14, X8, #16

(300) 0x43e70c ADD	X27, X10, X25

(300) 0x43e710 ADD	X4, X18, X28,LSL #3

(300) 0x43e714 UBFM	X2, X14, #4, #63

(300) 0x43e718 ADD	X26, X9, X25

(300) 0x43e71c ADD	X3, X17, X27,LSL #3

(300) 0x43e720 ADD	X1, X2, #1

(300) 0x43e724 ADD	X25, X13, X25

(300) 0x43e728 ADD	X2, X16, X26,LSL #3

(300) 0x43e72c ANDS	X14, X1, #0x7

(300) 0x43e730 MOVZ	X0, #0

(300) 0x43e734 ADD	X1, X15, X25,LSL #3

(300) 0x43e738 UBFM	X28, X28, #61, #60

(300) 0x43e73c UBFM	X27, X27, #61, #60

(300) 0x43e740 UBFM	X26, X26, #61, #60

(300) 0x43e744 UBFM	X25, X25, #61, #60

(300) 0x43e748 B.EQ	43e810

(300) 0x43e74c CMP	X14, #1

(300) 0x43e750 B.EQ	43e7f4

(300) 0x43e754 CMP	X14, #2

(300) 0x43e758 B.EQ	43e7e0

(300) 0x43e75c CMP	X14, #3

(300) 0x43e760 B.EQ	43e7cc

(300) 0x43e764 CMP	X14, #4

(300) 0x43e768 B.EQ	43e7b8

(300) 0x43e76c CMP	X14, #5

(300) 0x43e770 B.EQ	43e7a4

(300) 0x43e774 CMP	X14, #6

(300) 0x43e778 B.EQ	43e790

(300) 0x43e77c LDR	Q31, [X18, X28]

(300) 0x43e780 MOVZ	X0, #16

(300) 0x43e784 STR	Q31, [X17, X27]

(300) 0x43e788 LDR	Q0, [X16, X26]

(300) 0x43e78c STR	Q0, [X15, X25]

(300) 0x43e790 LDR	Q1, [X4, X0]

(300) 0x43e794 STR	Q1, [X3, X0]

(300) 0x43e798 LDR	Q2, [X2, X0]

(300) 0x43e79c STR	Q2, [X1, X0]

(300) 0x43e7a0 ADD	X0, X0, #16

(300) 0x43e7a4 LDR	Q3, [X4, X0]

(300) 0x43e7a8 STR	Q3, [X3, X0]

(300) 0x43e7ac LDR	Q4, [X2, X0]

(300) 0x43e7b0 STR	Q4, [X1, X0]

(300) 0x43e7b4 ADD	X0, X0, #16

(300) 0x43e7b8 LDR	Q5, [X4, X0]

(300) 0x43e7bc STR	Q5, [X3, X0]

(300) 0x43e7c0 LDR	Q6, [X2, X0]

(300) 0x43e7c4 STR	Q6, [X1, X0]

(300) 0x43e7c8 ADD	X0, X0, #16

(300) 0x43e7cc LDR	Q7, [X4, X0]

(300) 0x43e7d0 STR	Q7, [X3, X0]

(300) 0x43e7d4 LDR	Q16, [X2, X0]

(300) 0x43e7d8 STR	Q16, [X1, X0]

(300) 0x43e7dc ADD	X0, X0, #16

(300) 0x43e7e0 LDR	Q17, [X4, X0]

(300) 0x43e7e4 STR	Q17, [X3, X0]

(300) 0x43e7e8 LDR	Q18, [X2, X0]

(300) 0x43e7ec STR	Q18, [X1, X0]

(300) 0x43e7f0 ADD	X0, X0, #16

(300) 0x43e7f4 LDR	Q19, [X4, X0]

(300) 0x43e7f8 STR	Q19, [X3, X0]

(300) 0x43e7fc LDR	Q20, [X2, X0]

(300) 0x43e800 STR	Q20, [X1, X0]

(300) 0x43e804 ADD	X0, X0, #16

(300) 0x43e808 CMP	X8, X0

(300) 0x43e80c B.EQ	43e8c0

(300) 0x43e810 STP	W19, W23, [SP, #104]

  (301) 0x43e814 LDR	Q21, [X4, X0]

  (301) 0x43e818 ADD	X14, X0, #16

  (301) 0x43e81c ADD	X28, X0, #32

  (301) 0x43e820 ADD	X27, X0, #48

  (301) 0x43e824 ADD	X26, X0, #64

  (301) 0x43e828 ADD	X25, X0, #80

  (301) 0x43e82c ADD	X23, X0, #96

  (301) 0x43e830 ADD	X19, X0, #112

  (301) 0x43e834 STR	Q21, [X3, X0]

  (301) 0x43e838 LDR	Q22, [X2, X0]

  (301) 0x43e83c STR	Q22, [X1, X0]

  (301) 0x43e840 ADD	X0, X0, #128

  (301) 0x43e844 LDR	Q23, [X4, X14]

  (301) 0x43e848 STR	Q23, [X3, X14]

  (301) 0x43e84c LDR	Q24, [X2, X14]

  (301) 0x43e850 STR	Q24, [X1, X14]

  (301) 0x43e854 LDR	Q25, [X4, X28]

  (301) 0x43e858 STR	Q25, [X3, X28]

  (301) 0x43e85c LDR	Q26, [X2, X28]

  (301) 0x43e860 STR	Q26, [X1, X28]

  (301) 0x43e864 LDR	Q27, [X4, X27]

  (301) 0x43e868 STR	Q27, [X3, X27]

  (301) 0x43e86c LDR	Q28, [X2, X27]

  (301) 0x43e870 STR	Q28, [X1, X27]

  (301) 0x43e874 LDR	Q29, [X4, X26]

  (301) 0x43e878 STR	Q29, [X3, X26]

  (301) 0x43e87c LDR	Q30, [X2, X26]

  (301) 0x43e880 STR	Q30, [X1, X26]

  (301) 0x43e884 LDR	Q31, [X4, X25]

  (301) 0x43e888 STR	Q31, [X3, X25]

  (301) 0x43e88c LDR	Q0, [X2, X25]

  (301) 0x43e890 STR	Q0, [X1, X25]

  (301) 0x43e894 LDR	Q1, [X4, X23]

  (301) 0x43e898 STR	Q1, [X3, X23]

  (301) 0x43e89c LDR	Q2, [X2, X23]

  (301) 0x43e8a0 STR	Q2, [X1, X23]

  (301) 0x43e8a4 LDR	Q3, [X4, X19]

  (301) 0x43e8a8 STR	Q3, [X3, X19]

  (301) 0x43e8ac LDR	Q4, [X2, X19]

  (301) 0x43e8b0 STR	Q4, [X1, X19]

  (301) 0x43e8b4 CMP	X8, X0

  (301) 0x43e8b8 B.NE	43e814

(300) 0x43e8bc LDP	W19, W23, [SP, #104]

(300) 0x43e8c0 TBZ	W5, #0, 43e8f0

(300) 0x43e8c4 AND	W5, W5, #0xfffffffe

(300) 0x43e8c8 ADD	W6, W6, W5

(300) 0x43e8cc SBFM	X8, X6, #0, #31

(300) 0x43e8d0 ADD	X11, X11, X8

(300) 0x43e8d4 ADD	X10, X10, X8

(300) 0x43e8d8 ADD	X9, X9, X8

(300) 0x43e8dc ADD	X13, X13, X8

(300) 0x43e8e0 LDR	D5, [X18, X11,LSL #3]

(300) 0x43e8e4 STR	D5, [X17, X10,LSL #3]

(300) 0x43e8e8 LDR	D6, [X16, X9,LSL #3]

(300) 0x43e8ec STR	D6, [X15, X13,LSL #3]

(300) 0x43e8f0 ORR	W15, WZR, W12

(300) 0x43e8f4 ADD	X7, X7, #1

(300) 0x43e8f8 CMP	W19, W7

(300) 0x43e8fc B.LE	43e914

(300) 0x43e900 LDR	W12, [SP, #100]

(300) 0x43e904 ORR	W6, WZR, W23

(300) 0x43e908 ORR	W18, WZR, W24

(300) 0x43e90c SUB	W1, W12, W15

(300) 0x43e910 B	43e6ac

0x43e914 LDP	X21, X22, [SP, #32]

0x43e918 LDP	X23, X24, [SP, #48]

0x43e91c LDP	X19, X20, [SP, #16]

0x43e920 LDP	X25, X26, [SP, #64]

0x43e924 LDP	X27, X28, [SP, #80]

0x43e928 LDP	X29, X30, [SP], #112

0x43e92c RET

0x43e930 ADD	W1, W1, #1

0x43e934 MOVZ	W3, #0

0x43e938 B	43e678

0x43e93c HINT	#0

Coverage (%)	Name	Source Location	Module
►100.00+	GOMP_parallel		libgomp.so.1.0.0
○	reset_field(global_variables&)	reset_field.cpp:61	exec
○	hydro(global_variables&, paral[...]	hydro.cpp:84	exec
○	main	clover_leaf.cpp:209	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.cpp:51	exec

Coverage (%)	Name	Source Location	Module
►50.46+	GOMP_parallel		libgomp.so.1.0.0
○	reset_field(global_variables&)	reset_field.cpp:61	exec
○	hydro(global_variables&, paral[...]	hydro.cpp:84	exec
○	main	clover_leaf.cpp:209	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.cpp:51	exec
►49.54+	omp_fulfill_event		libgomp.so.1.0.0
○	start_thread		libc.so.6
○	thread_start		libc.so.6

Coverage (%)	Name	Source Location	Module
►74.33+	omp_fulfill_event		libgomp.so.1.0.0
○	start_thread		libc.so.6
○	thread_start		libc.so.6
►25.67+	GOMP_parallel		libgomp.so.1.0.0
○	reset_field(global_variables&)	reset_field.cpp:61	exec
○	hydro(global_variables&, paral[...]	hydro.cpp:84	exec
○	main	clover_leaf.cpp:209	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.cpp:51	exec

Coverage (%)	Name	Source Location	Module
►87.37+	omp_fulfill_event		libgomp.so.1.0.0
○	start_thread		libc.so.6
○	thread_start		libc.so.6
►12.63+	GOMP_parallel		libgomp.so.1.0.0
○	reset_field(global_variables&)	reset_field.cpp:61	exec
○	hydro(global_variables&, paral[...]	hydro.cpp:84	exec
○	main	clover_leaf.cpp:209	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.cpp:51	exec

Coverage (%)	Name	Source Location	Module
►93.61+	omp_fulfill_event		libgomp.so.1.0.0
○	start_thread		libc.so.6
○	thread_start		libc.so.6
►6.39+	GOMP_parallel		libgomp.so.1.0.0
○	reset_field(global_variables&)	reset_field.cpp:61	exec
○	hydro(global_variables&, paral[...]	hydro.cpp:84	exec
○	main	clover_leaf.cpp:209	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.cpp:51	exec

Coverage (%)	Name	Source Location	Module
►95.76+	omp_fulfill_event		libgomp.so.1.0.0
○	start_thread		libc.so.6
○	thread_start		libc.so.6
►4.24+	GOMP_parallel		libgomp.so.1.0.0
○	reset_field(global_variables&)	reset_field.cpp:61	exec
○	hydro(global_variables&, paral[...]	hydro.cpp:84	exec
○	main	clover_leaf.cpp:209	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.cpp:51	exec

Coverage (%)	Name	Source Location	Module
►96.87+	omp_fulfill_event		libgomp.so.1.0.0
○	start_thread		libc.so.6
○	thread_start		libc.so.6
►3.13+	GOMP_parallel		libgomp.so.1.0.0
○	reset_field(global_variables&)	reset_field.cpp:61	exec
○	hydro(global_variables&, paral[...]	hydro.cpp:84	exec
○	main	clover_leaf.cpp:209	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.cpp:51	exec

Coverage (%)	Name	Source Location	Module
►97.47+	omp_fulfill_event		libgomp.so.1.0.0
○	start_thread		libc.so.6
○	thread_start		libc.so.6
►2.52+	GOMP_parallel		libgomp.so.1.0.0
○	reset_field(global_variables&)	reset_field.cpp:61	exec
○	hydro(global_variables&, paral[...]	hydro.cpp:84	exec
○	main	clover_leaf.cpp:209	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.cpp:51	exec

Coverage (%)	Name	Source Location	Module
►97.90+	omp_fulfill_event		libgomp.so.1.0.0
○	start_thread		libc.so.6
○	thread_start		libc.so.6
►2.10+	GOMP_parallel		libgomp.so.1.0.0
○	reset_field(global_variables&)	reset_field.cpp:61	exec
○	hydro(global_variables&, paral[...]	hydro.cpp:84	exec
○	main	clover_leaf.cpp:209	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.cpp:51	exec

Coverage (%)	Name	Source Location	Module
►98.20+	omp_fulfill_event		libgomp.so.1.0.0
○	start_thread		libc.so.6
○	thread_start		libc.so.6
►1.80+	GOMP_parallel		libgomp.so.1.0.0
○	reset_field(global_variables&)	reset_field.cpp:61	exec
○	hydro(global_variables&, paral[...]	hydro.cpp:84	exec
○	main	clover_leaf.cpp:209	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.cpp:51	exec

Coverage (%)	Name	Source Location	Module
►98.44+	omp_fulfill_event		libgomp.so.1.0.0
○	start_thread		libc.so.6
○	thread_start		libc.so.6
►1.55+	GOMP_parallel		libgomp.so.1.0.0
○	reset_field(global_variables&)	reset_field.cpp:61	exec
○	hydro(global_variables&, paral[...]	hydro.cpp:84	exec
○	main	clover_leaf.cpp:209	exec
○	__libc_start_call_main		libc.so.6
○	__libc_start_main		libc.so.6
○	_start	clover_leaf.cpp:51	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 1x1

Source file and lines	reset_field.cpp:44-48
Module	exec

The function is defined in:

/home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/context.h:69
/home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/reset_field.cpp:44-48

Warnings:
Ignoring paths for analysis

gain
potential
hint
expert

Vectorization

Your function is not vectorized. Only 27% of vector register length is used (average across all VPU instructions). By vectorizing your function, you can lower the cost of an iteration from 25.00 to 15.62 cycles (1.60x speedup).

Details

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

Workaround

Try another compiler or update/tune your current one
Make array accesses unit-stride:
- If your function streams arrays of structures (AoS), try to use structures of arrays instead (SoA): for(i) a[i].x = b[i].x; (slow, non stride 1) => for(i) a.x[i] = b.x[i]; (fast, stride 1)

Expensive FP math instructions/calls

Detected performance impact from expensive FP math instructions/calls. By removing/reexpressing them, you can lower the cost of an iteration from 25.00 to 7.00 cycles (3.57x speedup).

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/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/reset_field.cpp:45
- /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/reset_field.cpp:45

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 6 bytes. The binary function is storing 3 bytes.

General properties

nb instructions	54
nb uops	53
loop length	216
used w registers	20
used x registers	15
used b registers	0
used h registers	0
used s registers	1
used d registers	0
used q registers	0
used v registers	0
used z registers	0
nb stack references	13

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	6.63 cycles
front end	6.63 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	4.00	4.00	7.50	7.50	7.50	7.50	0.00	0.00	0.00	0.00	6.17	5.83	6.00	3.50	3.50
cycles	4.00	4.00	7.50	7.50	7.50	7.50	0.00	0.00	0.00	0.00	6.17	5.83	6.00	3.50	3.50

Execution ports to units layout:

P0: BRU
P1: BRU
P2: ALU
P3: ALU
P4: ALU
P5: ALU
P6 (128 bits): VPU, FP store data, ALU, DIV/SQRT
P7 (128 bits): VPU, ALU, FP store data
P8 (128 bits): VPU, ALU, DIV/SQRT
P9 (128 bits): ALU, VPU
P10 (256 bits): store address, load
P11 (256 bits): store address, load
P12 (256 bits): load
P13 (64 bits): store data
P14 (64 bits): store data

Cycles executing div or sqrt instructions

10.00-25.00

Cycles summary

Front-end	6.63
Dispatch	7.50
DIV/SQRT	10.00-25.00
Overall L1	10.00-25.00

Vectorization ratios

all	0%
load	0%
store	0%
mul	0%
add-sub	0%
fma	0%
div/sqrt	0%
other	0%

Vector efficiency ratios

all	27%
load	43%
store	44%
mul	12%
add-sub	13%
fma	12%
div/sqrt	12%
other	23%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 25.00 cycles. At this rate:

0% of peak load performance is reached (0.24 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
0% of peak store performance is reached (0.12 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

Front-end bottlenecks

Found no such bottlenecks.

ASM code

In the binary file, the address of the function is: 43e600

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	Latency	Recip. throughput	Vectorization
STP X29, X30, [SP, #912]!	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
ADD X29, SP, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (25.0%)
STP X19, X20, [SP, #16]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
STP X25, X26, [SP, #64]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
ORR X26, XZR, X0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
STP X27, X28, [SP, #80]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
LDP W27, W19, [X0, #40]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	scal (25.0%)
LDR W25, [X26, #36]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	scal (12.5%)
LDR W0, [X0, #32]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	N/A
ADD W28, W27, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
ADD W19, W19, #3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
CMP W28, W19	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33	scal (12.5%)
B.GE 43e91c <_Z18reset_field_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_._omp_fn.1+0x31c>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
STP X21, X22, [SP, #32]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
ADD W22, W25, #3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
SUB W21, W19, W28	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
STP X23, X24, [SP, #48]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
ADD W23, W0, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
CMP W23, W22	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33	scal (12.5%)
B.GE 43e914 <_Z18reset_field_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_._omp_fn.1+0x314>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
SUB W24, W22, W23	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
BL 410210 <@plt_start@+0x1f0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
MUL W27, W21, W24	1	0	0	0	0	0.50	0.50	0	0	0	0	0	0	0	0	0	2	0.50	scal (12.5%)
ORR W20, WZR, W0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
BL 410240 <@plt_start@+0x220>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
ORR W2, WZR, W0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
UDIV W1, W27, W20	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	5-12	5-12.50	N/A
MSUB W3, W1, W20, W27	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
CMP W0, W3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33	scal (12.5%)
B.CC 43e930 <_Z18reset_field_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_._omp_fn.1+0x330>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
MADD W15, W1, W2, W3	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
ADD W4, W1, W15	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
STR W4, [SP, #100]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (12.5%)
CMP W15, W4	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33	scal (12.5%)
B.CS 43e914 <_Z18reset_field_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_._omp_fn.1+0x314>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
UDIV W5, W15, W24	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	5-12	5-12.50	scal (12.5%)
LDP X20, X30, [X26, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
MSUB W6, W5, W24, W15	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
ADD W7, W5, W28	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
SBFM X7, X7, #0, #31	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (100.0%)
ADD W6, W6, W23	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
SUB W18, W22, W6	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
LDP X22, X21, [X26]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
LDP X21, X22, [SP, #32]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
LDP X23, X24, [SP, #48]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
LDP X19, X20, [SP, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
LDP X25, X26, [SP, #64]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	N/A
LDP X27, X28, [SP, #80]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
LDP X29, X30, [SP], #112	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
RET	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
ADD W1, W1, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
MOVZ W3, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
B 43e678 <_Z18reset_field_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_._omp_fn.1+0x78>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
HINT #0																			N/A

The code analyzed by CQA in that panel excludes loops and represents 0.00% of application time for run 1x1

Source file and lines	reset_field.cpp:44-48
Module	exec

The function is defined in:

/home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/context.h:69
/home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/reset_field.cpp:44-48

Warnings:
Ignoring paths for analysis

gain
potential
hint
expert

Vectorization

Details

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

Workaround

Try another compiler or update/tune your current one
Make array accesses unit-stride:
- If your function streams arrays of structures (AoS), try to use structures of arrays instead (SoA): for(i) a[i].x = b[i].x; (slow, non stride 1) => for(i) a.x[i] = b.x[i]; (fast, stride 1)

Expensive FP math instructions/calls

Detected performance impact from expensive FP math instructions/calls. By removing/reexpressing them, you can lower the cost of an iteration from 25.00 to 7.00 cycles (3.57x speedup).

CALL instructions

Detected function call instructions.

Details

unknown: 2 occurrences►
- /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/reset_field.cpp:45
- /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/build/CloverLeaf2.0-CXX/src/omp/reset_field.cpp:45

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 6 bytes. The binary function is storing 3 bytes.

General properties

nb instructions	54
nb uops	53
loop length	216
used w registers	20
used x registers	15
used b registers	0
used h registers	0
used s registers	1
used d registers	0
used q registers	0
used v registers	0
used z registers	0
nb stack references	13

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	6.63 cycles
front end	6.63 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	4.00	4.00	7.50	7.50	7.50	7.50	0.00	0.00	0.00	0.00	6.17	5.83	6.00	3.50	3.50
cycles	4.00	4.00	7.50	7.50	7.50	7.50	0.00	0.00	0.00	0.00	6.17	5.83	6.00	3.50	3.50

Execution ports to units layout:

P0: BRU
P1: BRU
P2: ALU
P3: ALU
P4: ALU
P5: ALU
P6 (128 bits): VPU, FP store data, ALU, DIV/SQRT
P7 (128 bits): VPU, ALU, FP store data
P8 (128 bits): VPU, ALU, DIV/SQRT
P9 (128 bits): ALU, VPU
P10 (256 bits): store address, load
P11 (256 bits): store address, load
P12 (256 bits): load
P13 (64 bits): store data
P14 (64 bits): store data

Cycles executing div or sqrt instructions

10.00-25.00

Cycles summary

Front-end	6.63
Dispatch	7.50
DIV/SQRT	10.00-25.00
Overall L1	10.00-25.00

Vectorization ratios

all	0%
load	0%
store	0%
mul	0%
add-sub	0%
fma	0%
div/sqrt	0%
other	0%

Vector efficiency ratios

all	27%
load	43%
store	44%
mul	12%
add-sub	13%
fma	12%
div/sqrt	12%
other	23%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 25.00 cycles. At this rate:

0% of peak load performance is reached (0.24 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
0% of peak store performance is reached (0.12 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

Front-end bottlenecks

Found no such bottlenecks.

ASM code

In the binary file, the address of the function is: 43e600

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	Latency	Recip. throughput	Vectorization
STP X29, X30, [SP, #912]!	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
ADD X29, SP, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (25.0%)
STP X19, X20, [SP, #16]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
STP X25, X26, [SP, #64]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
ORR X26, XZR, X0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
STP X27, X28, [SP, #80]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
LDP W27, W19, [X0, #40]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	scal (25.0%)
LDR W25, [X26, #36]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	scal (12.5%)
LDR W0, [X0, #32]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33	N/A
ADD W28, W27, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
ADD W19, W19, #3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
CMP W28, W19	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33	scal (12.5%)
B.GE 43e91c <_Z18reset_field_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_._omp_fn.1+0x31c>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
STP X21, X22, [SP, #32]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
ADD W22, W25, #3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
SUB W21, W19, W28	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
STP X23, X24, [SP, #48]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (50.0%)
ADD W23, W0, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
CMP W23, W22	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33	scal (12.5%)
B.GE 43e914 <_Z18reset_field_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_._omp_fn.1+0x314>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
SUB W24, W22, W23	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
BL 410210 <@plt_start@+0x1f0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
MUL W27, W21, W24	1	0	0	0	0	0.50	0.50	0	0	0	0	0	0	0	0	0	2	0.50	scal (12.5%)
ORR W20, WZR, W0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
BL 410240 <@plt_start@+0x220>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
ORR W2, WZR, W0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
UDIV W1, W27, W20	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	5-12	5-12.50	N/A
MSUB W3, W1, W20, W27	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
CMP W0, W3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33	scal (12.5%)
B.CC 43e930 <_Z18reset_field_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_._omp_fn.1+0x330>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
MADD W15, W1, W2, W3	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
ADD W4, W1, W15	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
STR W4, [SP, #100]	1	0	0	0	0	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50	scal (12.5%)
CMP W15, W4	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.33	scal (12.5%)
B.CS 43e914 <_Z18reset_field_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_._omp_fn.1+0x314>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
UDIV W5, W15, W24	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	5-12	5-12.50	scal (12.5%)
LDP X20, X30, [X26, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
MSUB W6, W5, W24, W15	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	2	1	scal (12.5%)
ADD W7, W5, W28	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
SBFM X7, X7, #0, #31	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (100.0%)
ADD W6, W6, W23	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
SUB W18, W22, W6	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
LDP X22, X21, [X26]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
LDP X21, X22, [SP, #32]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
LDP X23, X24, [SP, #48]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
LDP X19, X20, [SP, #16]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
LDP X25, X26, [SP, #64]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	N/A
LDP X27, X28, [SP, #80]	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
LDP X29, X30, [SP], #112	1	0	0	0	0	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1	scal (50.0%)
RET	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
ADD W1, W1, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	N/A
MOVZ W3, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	0	0	0	0	1	0.25	scal (12.5%)
B 43e678 <_Z18reset_field_kerneliiiiRN6clover8Buffer2DIdEES2_S2_S2_S2_S2_S2_S2_._omp_fn.1+0x78>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
HINT #0																			N/A

▶Scalability Runs Description

Run 1x1	Number processes: 1Number nodes: NARun Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to core --map-by package:PE=64 --rank-by fill --report-bindings Dataset: Run Directory: /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/run/oneview_runs/multicore/gcc_4/oneview_run_1782227431OMP_PROC_BIND: spreadOMP_DISPLAY_AFFINITY: TRUEOMP_AFFINITY_FORMAT: 'OMP: pid %P tid %i thread %n bound to OS proc set {%A}'OMP_DISPLAY_ENV: TRUEOMP_NUM_THREADS: 1OMP_PLACES: threads
Run 1x2	Number processes: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to core --map-by package:PE=64 --rank-by fill --report-bindings Dataset: Run Directory: /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/run/oneview_runs/multicore/gcc_4/oneview_run_1782227431OMP_NUM_THREADS: 2OMP_PROC_BIND: spreadOMP_DISPLAY_AFFINITY: TRUEOMP_AFFINITY_FORMAT: 'OMP: pid %P tid %i thread %n bound to OS proc set {%A}'OMP_DISPLAY_ENV: TRUEOMP_PLACES: threads
Run 1x4	Number processes: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to core --map-by package:PE=64 --rank-by fill --report-bindings Dataset: Run Directory: /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/run/oneview_runs/multicore/gcc_4/oneview_run_1782227431OMP_NUM_THREADS: 4OMP_PROC_BIND: spreadOMP_DISPLAY_AFFINITY: TRUEOMP_AFFINITY_FORMAT: 'OMP: pid %P tid %i thread %n bound to OS proc set {%A}'OMP_DISPLAY_ENV: TRUEOMP_PLACES: threads
Run 1x8	Number processes: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to core --map-by package:PE=64 --rank-by fill --report-bindings Dataset: Run Directory: /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/run/oneview_runs/multicore/gcc_4/oneview_run_1782227431OMP_NUM_THREADS: 8OMP_PROC_BIND: spreadOMP_DISPLAY_AFFINITY: TRUEOMP_AFFINITY_FORMAT: 'OMP: pid %P tid %i thread %n bound to OS proc set {%A}'OMP_DISPLAY_ENV: TRUEOMP_PLACES: threads
Run 1x16	Number processes: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to core --map-by package:PE=64 --rank-by fill --report-bindings Dataset: Run Directory: /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/run/oneview_runs/multicore/gcc_4/oneview_run_1782227431OMP_NUM_THREADS: 16OMP_PROC_BIND: spreadOMP_DISPLAY_AFFINITY: TRUEOMP_AFFINITY_FORMAT: 'OMP: pid %P tid %i thread %n bound to OS proc set {%A}'OMP_DISPLAY_ENV: TRUEOMP_PLACES: threads
Run 1x24	Number processes: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to core --map-by package:PE=64 --rank-by fill --report-bindings Dataset: Run Directory: /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/run/oneview_runs/multicore/gcc_4/oneview_run_1782227431OMP_NUM_THREADS: 24OMP_PROC_BIND: spreadOMP_DISPLAY_AFFINITY: TRUEOMP_AFFINITY_FORMAT: 'OMP: pid %P tid %i thread %n bound to OS proc set {%A}'OMP_DISPLAY_ENV: TRUEOMP_PLACES: threads
Run 1x32	Number processes: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to core --map-by package:PE=64 --rank-by fill --report-bindings Dataset: Run Directory: /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/run/oneview_runs/multicore/gcc_4/oneview_run_1782227431OMP_NUM_THREADS: 32OMP_PROC_BIND: spreadOMP_DISPLAY_AFFINITY: TRUEOMP_AFFINITY_FORMAT: 'OMP: pid %P tid %i thread %n bound to OS proc set {%A}'OMP_DISPLAY_ENV: TRUEOMP_PLACES: threads
Run 1x40	Number processes: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to core --map-by package:PE=64 --rank-by fill --report-bindings Dataset: Run Directory: /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/run/oneview_runs/multicore/gcc_4/oneview_run_1782227431OMP_NUM_THREADS: 40OMP_PROC_BIND: spreadOMP_DISPLAY_AFFINITY: TRUEOMP_AFFINITY_FORMAT: 'OMP: pid %P tid %i thread %n bound to OS proc set {%A}'OMP_DISPLAY_ENV: TRUEOMP_PLACES: threads
Run 1x48	Number processes: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to core --map-by package:PE=64 --rank-by fill --report-bindings Dataset: Run Directory: /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/run/oneview_runs/multicore/gcc_4/oneview_run_1782227431OMP_NUM_THREADS: 48OMP_PROC_BIND: spreadOMP_DISPLAY_AFFINITY: TRUEOMP_AFFINITY_FORMAT: 'OMP: pid %P tid %i thread %n bound to OS proc set {%A}'OMP_DISPLAY_ENV: TRUEOMP_PLACES: threads
Run 1x56	Number processes: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to core --map-by package:PE=64 --rank-by fill --report-bindings Dataset: Run Directory: /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/run/oneview_runs/multicore/gcc_4/oneview_run_1782227431OMP_NUM_THREADS: 56OMP_PROC_BIND: spreadOMP_DISPLAY_AFFINITY: TRUEOMP_AFFINITY_FORMAT: 'OMP: pid %P tid %i thread %n bound to OS proc set {%A}'OMP_DISPLAY_ENV: TRUEOMP_PLACES: threads
Run 1x64	Number processes: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to core --map-by package:PE=64 --rank-by fill --report-bindings Dataset: Run Directory: /home/eoseret/qaas/qaas_runs/178-219-7589/intel/CloverLeaf2.0-CXX/run/oneview_runs/multicore/gcc_4/oneview_run_1782227431OMP_NUM_THREADS: 64OMP_PROC_BIND: spreadOMP_DISPLAY_AFFINITY: TRUEOMP_AFFINITY_FORMAT: 'OMP: pid %P tid %i thread %n bound to OS proc set {%A}'OMP_DISPLAY_ENV: TRUEOMP_PLACES: threads

(1x1) Efficiency	(1x1) Potential Speed-Up (%)	(1x2) Efficiency	(1x2) Potential Speed-Up (%)	(1x4) Efficiency	(1x4) Potential Speed-Up (%)	(1x8) Efficiency	(1x8) Potential Speed-Up (%)	(1x16) Efficiency	(1x16) Potential Speed-Up (%)	(1x24) Efficiency	(1x24) Potential Speed-Up (%)	(1x32) Efficiency	(1x32) Potential Speed-Up (%)	(1x40) Efficiency	(1x40) Potential Speed-Up (%)	(1x48) Efficiency	(1x48) Potential Speed-Up (%)	(1x56) Efficiency	(1x56) Potential Speed-Up (%)	(1x64) Efficiency	(1x64) Potential Speed-Up (%)
1	0	0.97	0.03	0.86	0.15	0.57	0.6	0.28	1.3	0.19	1.55	0.15	1.68	0.12	1.79	0.1	1.85	0.09	1.89	0.08	1.91

Speed-Up and Efficiency

▶Detailed Speed-Up and Efficiency

Run	Number of threads	Efficiency (ideal is 1)	Speedup	Ideal Speedup	Time (s)	Coverage (%)
1x1	1	1	1	1	13.689998626709	0.92107301950455
1x2	2	0.97	1.93	2	7.1300001144409	0.94510447978973
1x4	4	0.86	3.44	4	4.0500001907349	1.0385259389877
1x8	8	0.57	4.53	8	3.0050001144409	1.3921974897385
1x16	16	0.28	4.49	16	2.9949998855591	1.8111565113068
1x24	24	0.19	4.55	24	2.9949998855591	1.9172079563141
1x32	32	0.15	4.79	32	2.8400001525879	1.9806054830551
1x40	40	0.12	4.91	40	2.7550001144409	2.0371499061584
1x48	48	0.1	4.93	48	2.7349996566772	2.0621309280396
1x56	56	0.09	4.92	56	2.7599999904633	2.0709185600281
1x64	64	0.08	4.92	64	2.7600004673004	2.0694944858551

Name	Coverage (%)	Time (s)
▼reset_field_kernel(int, int, int, int, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&, clover::Buffer2D&) [...–	0.92	13.69
▼Loop 300 - reset_field.cpp:46-48 - exec–	0.00	0.00
○Loop 301 - reset_field.cpp:47-48 - exec	0.92	13.62

Report Configuration

Vectorization

Details

Workaround

Expensive FP math instructions/calls

CALL instructions

Details

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

Vectorization

Details

Workaround

Expensive FP math instructions/calls

CALL instructions

Details

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

▶Scalability Runs Description

▼Columns Filter

Speed-Up and Efficiency

▶Detailed Speed-Up and Efficiency