OV - exec - Function qmcplusplus::ParticleSet::acceptMove(int)

	Function: qmcplusplus::ParticleSet::acceptMove(int)	Module: exec	Source: ParticleSet.cpp:331-350 [...]	Coverage: 0.01%

/usr/include/c++/11/sstream: 917 - 917

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

917:       { return _M_stringbuf.str(); }

/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Numerics/PETE/OperatorTags.h: 183 - 183

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

183:     return (const_cast<T1&>(a) = b);

/usr/include/c++/11/ostream: 113 - 113

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

113: 	return __pf(*this);

/usr/include/c++/11/bits/refwrap.h: 338 - 338

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

338:       { return *_M_data; }

/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Particle/ParticleSet.cpp: 331 - 350

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

331: {

332:   ScopedTimer local_timer(timers[Timer_acceptMove]);

333:

334:   if (iat == activePtcl)

335:   {

336:     // Update position + distance-table

337:     for (int i = 0, n = DistTables.size(); i < n; i++)

338:       DistTables[i]->update(iat);

339:

340:     R[iat]     = activePos;

341:     RSoA(iat)  = activePos;

342:     activePtcl = -1;

343:   }

344:   else

345:   {

346:     std::ostringstream o;

347:     o << "  Illegal acceptMove " << iat << " != " << activePtcl;

348:     APP_ABORT(o.str());

349:   }

350: }

/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Numerics/OhmmsPETE/OhmmsVector.h: 223 - 223

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

223:     return X[i];

/usr/include/c++/11/bits/stl_vector.h: 919 - 1046

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

919:       { return size_type(this->_M_impl._M_finish - this->_M_impl._M_start); }

[...]

1046: 	return *(this->_M_impl._M_start + __n);

/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Numerics/OhmmsPETE/VectorSoAContainer.h: 216 - 235

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

216:         *(_base + M * i) = rhs[i];

[...]

235:   Accessor operator()(size_t i) { return Accessor(myData + i, nGhosts); }

/usr/include/c++/11/bits/basic_string.h: 658 - 6522

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

658:       { _M_dispose(); }

[...]

6522:       return __ostream_insert(__os, __str.data(), __str.size());

/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Utilities/NewTimer.h: 242 - 249

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

242:   ScopeGuard(TIMER& t) : timer(t) { timer.start(); }

[...]

249:   ~ScopeGuard() { timer.stop(); }

0x4651e0 STP	X29, X30, [SP, #528]!

0x4651e4 ADD	X29, SP, #0

0x4651e8 ADRP	X2,

0x4651ec STP	X23, X24, [SP, #48]

0x4651f0 ORR	X23, XZR, X0

0x4651f4 STP	X19, X20, [SP, #16]

0x4651f8 ORR	W20, WZR, W1

0x4651fc LDR	X1, [X23, #2728]

0x465200 LDR	X0, [X2, #4016]

0x465204 LDR	X24, [X1, #16]

0x465208 STR	X25, [SP, #64]

0x46520c LDR	X2, [X0]

0x465210 STR	X2, [SP, #488]

0x465214 MOVZ	X2, #0

0x465218 ORR	X0, XZR, X24

0x46521c BL	479f20

0x465220 LDR	W3, [X23, #2436]

0x465224 STP	X21, X22, [SP, #32]

0x465228 CMP	W3, W20

0x46522c B.NE	4654ec

0x465230 LDR	X30, [X23, #2576]

0x465234 ADD	X22, X23, #2576

0x465238 LDR	X8, [X22, #8]

0x46523c SUB	X9, X8, X30

0x465240 SBFM	X10, X9, #3, #63

0x465244 CMP	W10, #0

0x465248 B.LE	465430

0x46524c SUB	W21, W10, #1

0x465250 MOVZ	X19, #0

0x465254 ADD	X11, X21, #1

0x465258 UBFM	X21, X11, #61, #60

0x46525c SUB	X12, X21, #8

0x465260 UBFM	X25, X12, #3, #5

0x465264 ANDS	XZR, X12, #4285

0x465268 B.EQ	465410

0x46526c LDR	X0, [X30]

0x465270 ORR	W1, WZR, W20

0x465274 LDR	X13, [X0]

0x465278 LDR	X14, [X13, #48]

0x46527c BLR	X14

0x465280 MOVZ	X19, #8

0x465284 LDR	X30, [X22]

0x465288 CMP	X25, #1

0x46528c B.EQ	465410

0x465290 CMP	X25, #2

0x465294 B.EQ	465328

0x465298 CMP	X25, #3

0x46529c B.EQ	46530c

0x4652a0 CMP	X25, #4

0x4652a4 B.EQ	4652f0

0x4652a8 CMP	X25, #5

0x4652ac B.EQ	4652d4

0x4652b0 CMP	X25, #6

0x4652b4 B.NE	4654c8

(1131) 0x4652b8 LDR	X0, [X30, X19]

(1131) 0x4652bc ORR	W1, WZR, W20

(1131) 0x4652c0 LDR	X16, [X0]

(1131) 0x4652c4 LDR	X2, [X16, #48]

(1131) 0x4652c8 BLR	X2

(1131) 0x4652cc LDR	X30, [X22]

(1131) 0x4652d0 ADD	X19, X19, #8

(1131) 0x4652d4 ORR	W1, WZR, W20

(1131) 0x4652d8 LDR	X0, [X30, X19]

(1131) 0x4652dc LDR	X17, [X0]

(1131) 0x4652e0 LDR	X3, [X17, #48]

(1131) 0x4652e4 BLR	X3

(1131) 0x4652e8 LDR	X30, [X22]

(1131) 0x4652ec ADD	X19, X19, #8

(1131) 0x4652f0 ORR	W1, WZR, W20

(1131) 0x4652f4 LDR	X0, [X30, X19]

(1131) 0x4652f8 LDR	X30, [X0]

(1131) 0x4652fc LDR	X4, [X30, #48]

(1131) 0x465300 BLR	X4

(1131) 0x465304 LDR	X30, [X22]

(1131) 0x465308 ADD	X19, X19, #8

(1131) 0x46530c ORR	W1, WZR, W20

(1131) 0x465310 LDR	X0, [X30, X19]

(1131) 0x465314 LDR	X5, [X0]

(1131) 0x465318 LDR	X6, [X5, #48]

(1131) 0x46531c BLR	X6

(1131) 0x465320 LDR	X30, [X22]

(1131) 0x465324 ADD	X19, X19, #8

(1131) 0x465328 ORR	W1, WZR, W20

(1131) 0x46532c LDR	X0, [X30, X19]

(1131) 0x465330 LDR	X7, [X0]

(1131) 0x465334 LDR	X8, [X7, #48]

(1131) 0x465338 BLR	X8

(1131) 0x46533c ADD	X19, X19, #8

(1131) 0x465340 LDR	X30, [X22]

(1131) 0x465344 B	465410

  (1130) 0x465348 LDR	X15, [X22]

  (1130) 0x46534c ORR	W1, WZR, W20

  (1130) 0x465350 LDR	X0, [X15, X19]

  (1130) 0x465354 LDR	X18, [X0]

  (1130) 0x465358 LDR	X2, [X18, #48]

  (1130) 0x46535c BLR	X2

  (1130) 0x465360 LDR	X17, [X22]

  (1130) 0x465364 ADD	X16, X19, #8

  (1130) 0x465368 ORR	W1, WZR, W20

  (1130) 0x46536c LDR	X0, [X17, X16]

  (1130) 0x465370 LDR	X3, [X0]

  (1130) 0x465374 LDR	X4, [X3, #48]

  (1130) 0x465378 BLR	X4

  (1130) 0x46537c LDR	X5, [X22]

  (1130) 0x465380 ADD	X30, X19, #16

  (1130) 0x465384 ORR	W1, WZR, W20

  (1130) 0x465388 LDR	X0, [X5, X30]

  (1130) 0x46538c LDR	X6, [X0]

  (1130) 0x465390 LDR	X7, [X6, #48]

  (1130) 0x465394 BLR	X7

  (1130) 0x465398 LDR	X9, [X22]

  (1130) 0x46539c ADD	X8, X19, #24

  (1130) 0x4653a0 ORR	W1, WZR, W20

  (1130) 0x4653a4 LDR	X0, [X9, X8]

  (1130) 0x4653a8 LDR	X10, [X0]

  (1130) 0x4653ac LDR	X11, [X10, #48]

  (1130) 0x4653b0 BLR	X11

  (1130) 0x4653b4 LDR	X12, [X22]

  (1130) 0x4653b8 ADD	X0, X19, #32

  (1130) 0x4653bc ORR	W1, WZR, W20

  (1130) 0x4653c0 LDR	X0, [X12, X0]

  (1130) 0x4653c4 LDR	X25, [X0]

  (1130) 0x4653c8 LDR	X13, [X25, #48]

  (1130) 0x4653cc BLR	X13

  (1130) 0x4653d0 LDR	X15, [X22]

  (1130) 0x4653d4 ADD	X14, X19, #40

  (1130) 0x4653d8 ORR	W1, WZR, W20

  (1130) 0x4653dc LDR	X0, [X15, X14]

  (1130) 0x4653e0 LDR	X18, [X0]

  (1130) 0x4653e4 LDR	X2, [X18, #48]

  (1130) 0x4653e8 BLR	X2

  (1130) 0x4653ec LDR	X17, [X22]

  (1130) 0x4653f0 ADD	X16, X19, #48

  (1130) 0x4653f4 ORR	W1, WZR, W20

  (1130) 0x4653f8 LDR	X0, [X17, X16]

  (1130) 0x4653fc LDR	X3, [X0]

  (1130) 0x465400 LDR	X4, [X3, #48]

  (1130) 0x465404 BLR	X4

  (1130) 0x465408 LDR	X30, [X22]

  (1130) 0x46540c ADD	X19, X19, #56

  (1130) 0x465410 ORR	W1, WZR, W20

  (1130) 0x465414 LDR	X0, [X30, X19]

  (1130) 0x465418 LDR	X9, [X0]

  (1130) 0x46541c LDR	X10, [X9, #48]

  (1130) 0x465420 BLR	X10

  (1130) 0x465424 ADD	X19, X19, #8

  (1130) 0x465428 CMP	X19, X21

  (1130) 0x46542c B.NE	465348

(1131) 0x465430 MOVZ	W0, #24

(1131) 0x465434 LDR	D0, [X23, #2440]

(1131) 0x465438 SBFM	X22, X20, #0, #31

(1131) 0x46543c MOVN	W11, #0

(1131) 0x465440 SMADDL	X20, W20, W0, XZR

(1131) 0x465444 ORR	X0, XZR, X24

(1131) 0x465448 LDR	X24, [X23, #1512]

(1131) 0x46544c LDR	X21, [X23, #1536]

(1131) 0x465450 LDR	X12, [X23, #1552]

(1131) 0x465454 STR	D0, [X24, X20]

(1131) 0x465458 ADD	X1, X24, X20

(1131) 0x46545c LDR	D1, [X23, #2448]

(1131) 0x465460 ADD	X25, X22, X21

(1131) 0x465464 ADD	X13, X22, X21,LSL #1

(1131) 0x465468 STR	D1, [X1, #8]

(1131) 0x46546c LDR	D2, [X23, #2456]

(1131) 0x465470 STR	D2, [X1, #16]

(1131) 0x465474 LDR	D3, [X23, #2440]

(1131) 0x465478 STR	D3, [X12, X22,LSL #3]

(1131) 0x46547c LDR	D4, [X23, #2448]

(1131) 0x465480 STR	D4, [X12, X25,LSL #3]

(1131) 0x465484 LDR	D5, [X23, #2456]

(1131) 0x465488 STR	D5, [X12, X13,LSL #3]

(1131) 0x46548c STR	W11, [X23, #2436]

(1131) 0x465490 ADRP	X23,

(1131) 0x465494 BL	47a180

(1131) 0x465498 LDR	X14, [X23, #4016]

(1131) 0x46549c LDR	X2, [SP, #488]

(1131) 0x4654a0 LDR	X1, [X14]

(1131) 0x4654a4 SUBS	X2, X2, X1

(1131) 0x4654a8 MOVZ	X1, #0

(1131) 0x4654ac B.NE	4654e8

(1131) 0x4654b0 LDP	X19, X20, [SP, #16]

(1131) 0x4654b4 LDP	X21, X22, [SP, #32]

(1131) 0x4654b8 LDP	X23, X24, [SP, #48]

(1131) 0x4654bc LDR	X25, [SP, #64]

(1131) 0x4654c0 LDP	X29, X30, [SP], #496

(1131) 0x4654c4 RET

(1131) 0x4654c8 LDR	X0, [X30, X19]

(1131) 0x4654cc ORR	W1, WZR, W20

(1131) 0x4654d0 LDR	X15, [X0]

(1131) 0x4654d4 LDR	X18, [X15, #48]

(1131) 0x4654d8 BLR	X18

(1131) 0x4654dc ADD	X19, X19, X19

(1131) 0x4654e0 LDR	X30, [X22]

(1131) 0x4654e4 B	4652b8

0x4654e8 BL	403d80

0x4654ec ADD	X21, SP, #112

0x4654f0 ORR	X0, XZR, X21

0x4654f4 BL	4036a0

0x4654f8 ADRP	X4,

0x4654fc ORR	X0, XZR, X21

0x465500 ADD	X1, X4, #3360

0x465504 BL	403930

0x465508 ORR	W1, WZR, W20

0x46550c BL	403830

0x465510 ADRP	X5,

0x465514 ADD	X1, X5, #3384

0x465518 BL	403930

0x46551c LDR	W1, [X23, #2436]

0x465520 BL	403830

0x465524 ADRP	X6,

0x465528 ADRP	X7,

0x46552c LDR	X0, [X7, #4056]

0x465530 ADD	X1, X6, #3384

0x465534 BL	403930

0x465538 ADD	X20, SP, #80

0x46553c ORR	X19, XZR, X0

0x465540 ORR	X8, XZR, X20

0x465544 ADD	X0, SP, #120

0x465548 BL	4037b0

0x46554c ORR	X0, XZR, X19

0x465550 LDP	X1, X2, [SP, #80]

0x465554 BL	4039e0

0x465558 BL	45fb50

0x46555c ORR	X0, XZR, X20

0x465560 BL	403730

0x465564 MOVZ	W0, #1

0x465568 BL	403800

0x46556c ORR	X22, XZR, X0

0x465570 B	465588

0x465574 ORR	X22, XZR, X0

0x465578 ORR	X0, XZR, X20

0x46557c BL	403730

(1129) 0x465580 ORR	X0, XZR, X21

(1129) 0x465584 BL	403b30

(1129) 0x465588 ORR	X0, XZR, X24

(1129) 0x46558c BL	47a180

(1129) 0x465590 ORR	X0, XZR, X22

(1129) 0x465594 BL	403aa0

(1129) 0x465598 ORR	X22, XZR, X0

(1129) 0x46559c B	465580

Coverage (%)	Name	Source Location	Module
►100.00+	main._omp_fn.1	miniqmc.cpp:422	exec
○	GOMP_parallel		libomp.so
○	main	miniqmc.cpp:402	exec
○	__libc_start_main		libc-2.31.so
○	_start	miniqmc.cpp:546	exec

Path /

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

Source file and lines	ParticleSet.cpp:331-350
Module	exec

The function is defined in:

/usr/include/c++/11/sstream:917
/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Numerics/PETE/OperatorTags.h:183
/usr/include/c++/11/ostream:113
/usr/include/c++/11/bits/refwrap.h:338
/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Particle/ParticleSet.cpp:331-350
/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Numerics/OhmmsPETE/OhmmsVector.h:223
/usr/include/c++/11/bits/stl_vector.h:919,1046
/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Numerics/OhmmsPETE/VectorSoAContainer.h:216,235
/usr/include/c++/11/bits/basic_string.h:658,6522
/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Utilities/NewTimer.h:242,249

Warnings:
Ignoring paths for analysis

gain
potential
hint
expert

Vectorization

Your function is not vectorized. Only 22% of vector register length is used (average across all VPU instructions). By vectorizing your function, you can lower the cost of an iteration from 15.75 to 2.53 cycles (6.22x 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 15.75 to 7.50 cycles (2.10x speedup).

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 112 bytes. The binary function is storing 80 bytes.

General properties

nb instructions	92
loop length	368
nb stack references	0

Front-end

FIT IN UOP CACHE

front end

11.50 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	12.50	12.50	15.75	15.75	15.75	15.75	0.00	0.00	0.00	0.00	6.67	6.67	6.67	3.00	3.00
cycles	12.50	12.50	15.75	15.75	15.75	15.75	0.00	0.00	0.00	0.00	6.67	6.67	6.67	3.00	3.00

Cycles executing div or sqrt instructions

Cycles summary

Front-end	11.50
Overall L1	15.75

Vectorization ratios

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

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 15.75 cycles. At this rate:

7% of peak load performance is reached (7.11 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
10% of peak store performance is reached (5.08 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

ASM code

In the binary file, the address of the function is: 4651e0

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P10	P11	P12	P13	P14	Latency	Recip. throughput
STP X29, X30, [SP, #528]!	1	0	0	0.25	0.25	0.25	0.25	0.50	0.50	0	0.50	0.50	1	0.50
ADD X29, SP, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADRP X2, <4c11e8>	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
STP X23, X24, [SP, #48]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
ORR X23, XZR, X0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
STP X19, X20, [SP, #16]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
ORR W20, WZR, W1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDR X1, [X23, #2728]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X0, [X2, #4016]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X24, [X1, #16]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STR X25, [SP, #64]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
LDR X2, [X0]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STR X2, [SP, #488]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
MOVZ X2, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X0, XZR, X24	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 479f20 <_ZN11qmcplusplus9TimerTypeINS_8CPUClockEE5startEv>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR W3, [X23, #2436]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STP X21, X22, [SP, #32]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
CMP W3, W20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.NE 4654ec <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x30c>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
LDR X30, [X23, #2576]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X22, X23, #2576	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDR X8, [X22, #8]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
SUB X9, X8, X30	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
SBFM X10, X9, #3, #63	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
CMP W10, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.LE 465430 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x250>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
SUB W21, W10, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
MOVZ X19, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADD X11, X21, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
UBFM X21, X11, #61, #60	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
SUB X12, X21, #8	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
UBFM X25, X12, #3, #5	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ANDS XZR, X12, #4285	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 465410 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x230>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
LDR X0, [X30]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ORR W1, WZR, W20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDR X13, [X0]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X14, [X13, #48]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
BLR X14	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
MOVZ X19, #8	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDR X30, [X22]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
CMP X25, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 465410 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x230>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
CMP X25, #2	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 465328 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x148>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
CMP X25, #3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 46530c <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x12c>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
CMP X25, #4	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 4652f0 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x110>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
CMP X25, #5	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 4652d4 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0xf4>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
CMP X25, #6	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.NE 4654c8 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x2e8>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
BL 403d80 <@plt_start@+0x700>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADD X21, SP, #112	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X0, XZR, X21	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 4036a0 <@plt_start@+0x20>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADRP X4, <49f4f8>	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X0, XZR, X21	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADD X1, X4, #3360	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403930 <@plt_start@+0x2b0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ORR W1, WZR, W20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403830 <@plt_start@+0x1b0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADRP X5, <49f510>	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADD X1, X5, #3384	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403930 <@plt_start@+0x2b0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR W1, [X23, #2436]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
BL 403830 <@plt_start@+0x1b0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADRP X6, <49e524>	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADRP X7, <4c1528>	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDR X0, [X7, #4056]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X1, X6, #3384	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403930 <@plt_start@+0x2b0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADD X20, SP, #80	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X19, XZR, X0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X8, XZR, X20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADD X0, SP, #120	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 4037b0 <@plt_start@+0x130>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ORR X0, XZR, X19	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDP X1, X2, [SP, #80]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
BL 4039e0 <@plt_start@+0x360>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
BL 45fb50 <_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_.isra.0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ORR X0, XZR, X20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403730 <@plt_start@+0xb0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
MOVZ W0, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403800 <@plt_start@+0x180>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ORR X22, XZR, X0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
B 465588 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x3a8>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
ORR X22, XZR, X0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X0, XZR, X20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403730 <@plt_start@+0xb0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50

Source file and lines	ParticleSet.cpp:331-350
Module	exec

The function is defined in:

/usr/include/c++/11/sstream:917
/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Numerics/PETE/OperatorTags.h:183
/usr/include/c++/11/ostream:113
/usr/include/c++/11/bits/refwrap.h:338
/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Particle/ParticleSet.cpp:331-350
/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Numerics/OhmmsPETE/OhmmsVector.h:223
/usr/include/c++/11/bits/stl_vector.h:919,1046
/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Numerics/OhmmsPETE/VectorSoAContainer.h:216,235
/usr/include/c++/11/bits/basic_string.h:658,6522
/home/hbollore/qaas/qaas-runs/169-816-8620/intel/miniqmc/build/miniqmc/src/Utilities/NewTimer.h:242,249

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 15.75 to 7.50 cycles (2.10x speedup).

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 112 bytes. The binary function is storing 80 bytes.

General properties

nb instructions	92
loop length	368
nb stack references	0

Front-end

FIT IN UOP CACHE

front end

11.50 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14
uops	12.50	12.50	15.75	15.75	15.75	15.75	0.00	0.00	0.00	0.00	6.67	6.67	6.67	3.00	3.00
cycles	12.50	12.50	15.75	15.75	15.75	15.75	0.00	0.00	0.00	0.00	6.67	6.67	6.67	3.00	3.00

Cycles executing div or sqrt instructions

Cycles summary

Front-end	11.50
Overall L1	15.75

Vectorization ratios

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

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 15.75 cycles. At this rate:

7% of peak load performance is reached (7.11 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
10% of peak store performance is reached (5.08 out of 48.00 bytes stored per cycle (GB/s @ 1GHz))

ASM code

In the binary file, the address of the function is: 4651e0

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P10	P11	P12	P13	P14	Latency	Recip. throughput
STP X29, X30, [SP, #528]!	1	0	0	0.25	0.25	0.25	0.25	0.50	0.50	0	0.50	0.50	1	0.50
ADD X29, SP, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADRP X2, <4c11e8>	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
STP X23, X24, [SP, #48]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
ORR X23, XZR, X0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
STP X19, X20, [SP, #16]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
ORR W20, WZR, W1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDR X1, [X23, #2728]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X0, [X2, #4016]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X24, [X1, #16]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STR X25, [SP, #64]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
LDR X2, [X0]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STR X2, [SP, #488]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
MOVZ X2, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X0, XZR, X24	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 479f20 <_ZN11qmcplusplus9TimerTypeINS_8CPUClockEE5startEv>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR W3, [X23, #2436]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
STP X21, X22, [SP, #32]	1	0	0	0	0	0	0	0.50	0.50	0	0.50	0.50	1	0.50
CMP W3, W20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.NE 4654ec <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x30c>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
LDR X30, [X23, #2576]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X22, X23, #2576	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDR X8, [X22, #8]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
SUB X9, X8, X30	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
SBFM X10, X9, #3, #63	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
CMP W10, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.LE 465430 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x250>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
SUB W21, W10, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
MOVZ X19, #0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADD X11, X21, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
UBFM X21, X11, #61, #60	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
SUB X12, X21, #8	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
UBFM X25, X12, #3, #5	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ANDS XZR, X12, #4285	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 465410 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x230>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
LDR X0, [X30]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ORR W1, WZR, W20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDR X13, [X0]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
LDR X14, [X13, #48]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
BLR X14	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
MOVZ X19, #8	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDR X30, [X22]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
CMP X25, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 465410 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x230>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
CMP X25, #2	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 465328 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x148>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
CMP X25, #3	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 46530c <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x12c>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
CMP X25, #4	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 4652f0 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x110>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
CMP X25, #5	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.EQ 4652d4 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0xf4>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
CMP X25, #6	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.33
B.NE 4654c8 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x2e8>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
BL 403d80 <@plt_start@+0x700>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADD X21, SP, #112	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X0, XZR, X21	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 4036a0 <@plt_start@+0x20>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADRP X4, <49f4f8>	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X0, XZR, X21	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADD X1, X4, #3360	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403930 <@plt_start@+0x2b0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ORR W1, WZR, W20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403830 <@plt_start@+0x1b0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADRP X5, <49f510>	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADD X1, X5, #3384	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403930 <@plt_start@+0x2b0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
LDR W1, [X23, #2436]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
BL 403830 <@plt_start@+0x1b0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADRP X6, <49e524>	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADRP X7, <4c1528>	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDR X0, [X7, #4056]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	0.33
ADD X1, X6, #3384	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403930 <@plt_start@+0x2b0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ADD X20, SP, #80	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X19, XZR, X0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X8, XZR, X20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ADD X0, SP, #120	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 4037b0 <@plt_start@+0x130>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ORR X0, XZR, X19	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
LDP X1, X2, [SP, #80]	1	0	0	0	0	0	0	0.33	0.33	0.33	0	0	4	1
BL 4039e0 <@plt_start@+0x360>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
BL 45fb50 <_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_.isra.0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ORR X0, XZR, X20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403730 <@plt_start@+0xb0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
MOVZ W0, #1	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403800 <@plt_start@+0x180>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50
ORR X22, XZR, X0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
B 465588 <_ZN11qmcplusplus11ParticleSet10acceptMoveEi+0x3a8>	1	0.50	0.50	0	0	0	0	0	0	0	0	0	1	0.50
ORR X22, XZR, X0	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
ORR X0, XZR, X20	1	0	0	0.25	0.25	0.25	0.25	0	0	0	0	0	1	0.25
BL 403730 <@plt_start@+0xb0>	1	0.50	0.50	0.50	0.50	0	0	0	0	0	0	0	1	0.50

Name	Coverage (%)	Time (s)
▼qmcplusplus::ParticleSet::acceptMove(int)–	0.01	0
○Loop 1129 - ParticleSet.cpp:349-349 - exec	0	0
▼Loop 1131 - stl_vector.h:1046-1046 - exec–	0	0
○Loop 1130 - ParticleSet.cpp:337-338 - exec	0.01	0

Report Configuration

Vectorization

Details

Workaround

Expensive FP math instructions/calls

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

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Cycles and memory resources usage

ASM code

Vectorization

Details

Workaround

Expensive FP math instructions/calls

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

General properties

Front-end

Back-end

Cycles summary

Vectorization ratios

Cycles and memory resources usage

ASM code