OV - exec - Function main.omp

	Function: main.omp_outlined.14	Module: exec	Source: stream.c:271-275	Coverage (incl. loops): 1.42% \| (excl. loops): 0.00%

/beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/build/stream-copy/src/stream.c: 271 - 275

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

271: #pragma omp parallel for

272:     for (j=0; j<STREAM_ARRAY_SIZE; j++) {

273: 	    a[j] = 1.0;

274: 	    b[j] = 2.0;

275: 	    c[j] = 0.0;

0x202f70 PUSH	%RBP

0x202f71 MOV	%RSP,%RBP

0x202f74 PUSH	%R15

0x202f76 PUSH	%R14

0x202f78 PUSH	%R12

0x202f7a PUSH	%RBX

0x202f7b SUB	$0x20,%RSP

0x202f7f MOV	(%RDI),%R14D

0x202f82 LEA	0x2c87(%RIP),%RBX

0x202f89 MOVQ	$0,-0x38(%RBP)

0x202f91 MOVQ	$0x3344ffff,-0x28(%RBP)

0x202f99 MOVQ	$0x1,-0x40(%RBP)

0x202fa1 MOVL	$0,-0x2c(%RBP)

0x202fa8 SUB	$0x8,%RSP

0x202fac MOV	$0x10c0,%RDI

0x202fb6 LEA	-0x40(%RBP),%RAX

0x202fba LEA	-0x2c(%RBP),%RCX

0x202fbe LEA	-0x38(%RBP),%R8

0x202fc2 LEA	-0x28(%RBP),%R9

0x202fc6 MOV	%R14D,%ESI

0x202fc9 MOV	$0x22,%EDX

0x202fce ADD	%RBX,%RDI

0x202fd1 PUSH	$0x1

0x202fd3 PUSH	$0x1

0x202fd5 PUSH	%RAX

0x202fd6 CALL	203a00 <@plt_start@+0x80>

0x202fdb ADD	$0x20,%RSP

0x202fdf MOV	-0x28(%RBP),%RAX

0x202fe3 MOV	-0x38(%RBP),%R12

0x202fe7 MOV	$0x3344ffff,%R15D

0x202fed CMP	$0x3344ffff,%RAX

0x202ff3 CMOVL	%RAX,%R15

0x202ff7 MOV	%R15,-0x28(%RBP)

0x202ffb CMP	%R15,%R12

0x202ffe JG	203072

0x203000 MOV	$0x3345011a0,%RAX

0x20300a XOR	%ESI,%ESI

0x20300c ADD	%RBX,%RAX

0x20300f LEA	(%RAX,%R12,8),%RDI

0x203013 MOV	%R15,%RAX

0x203016 SUB	%R12,%RAX

0x203019 LEA	0x8(,%RAX,8),%RDX

0x203021 CALL	203a10 <@plt_start@+0x90>

0x203026 MOV	$0x11a0,%RAX

0x203030 MOV	$0x19a2811a0,%RDX

0x20303a DEC	%R12

0x20303d MOV	$0x3ff0000000000000,%RCX

0x203047 MOV	$0x4000000000000000,%RSI

0x203051 ADD	%RBX,%RAX

0x203054 ADD	%RBX,%RDX

0x203057 NOPW	(%RAX,%RAX,1)

(2) 0x203060 MOV	%RCX,0x8(%RAX,%R12,8)

(2) 0x203065 MOV	%RSI,0x8(%RDX,%R12,8)

(2) 0x20306a INC	%R12

(2) 0x20306d CMP	%R15,%R12

(2) 0x203070 JL	203060

0x203072 MOV	$0x10d8,%RAX

0x20307c MOV	%R14D,%ESI

0x20307f ADD	%RAX,%RBX

0x203082 MOV	%RBX,%RDI

0x203085 CALL	203a20 <@plt_start@+0xa0>

0x20308a ADD	$0x20,%RSP

0x20308e POP	%RBX

0x20308f POP	%R12

0x203091 POP	%R14

0x203093 POP	%R15

0x203095 POP	%RBP

0x203096 RET

0x203097 NOPW	(%RAX,%RAX,1)

Coverage (%)	Name	Source Location	Module
►100.00+	__kmp_invoke_microtask		libomp.so
○	__kmp_invoke_task_func		libomp.so

Coverage (%)	Name	Source Location	Module
►100.00+	__kmp_invoke_microtask		libomp.so
○	__kmp_invoke_task_func		libomp.so

Coverage (%)	Name	Source Location	Module
►99.10+	__kmp_invoke_microtask		libomp.so
○	__kmp_invoke_task_func		libomp.so

Coverage (%)	Name	Source Location	Module
►99.11+	__kmp_invoke_microtask		libomp.so
○	__kmp_invoke_task_func		libomp.so

Coverage (%)	Name	Source Location	Module
►99.20+	__kmp_invoke_microtask		libomp.so
○	__kmp_invoke_task_func		libomp.so

Coverage (%)	Name	Source Location	Module
►100.00+	__kmp_invoke_microtask		libomp.so
○	__kmp_invoke_task_func		libomp.so

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 1x8

Source file and lines	stream.c:271-275
Module	exec

The function is defined in /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/build/stream-copy/src/stream.c:271-275.

Warnings:
Ignoring paths for analysis

gain
potential
hint
expert

Vectorization

Your function is not vectorized. Only 9% 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 10.83 to 0.73 cycles (14.84x 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): for(i) a[i].x = b[i].x; (slow, non stride 1) => for(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: 3 occurrences►
- /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/build/stream-copy/src/stream.c:271
- /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/build/stream-copy/src/stream.c:275
- /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/build/stream-copy/src/stream.c:271

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 20 bytes. The binary function is storing 36 bytes.

General properties

nb instructions	64
nb uops	65
loop length	286
used x86 registers	13
used mmx registers	0
used xmm registers	0
used ymm registers	0
used zmm registers	0
nb stack references	4

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	10.83 cycles
front end	10.83 cycles

Back-end

	ALU0/BRU0	ALU1	ALU2	ALU3	BRU1	AGU0	AGU1	AGU2	FP0	FP1	FP2	FP3	FP4	FP5
uops	8.25	8.25	8.00	8.00	2.50	3.67	3.67	3.67	0.00	0.00	0.00	0.00	0.00	0.00
cycles	8.25	8.25	8.00	8.00	2.50	3.67	3.67	3.67	0.00	0.00	0.00	0.00	0.00	0.00

Execution ports to units layout:

ALU0/BRU0: ALU, BRU
ALU1: ALU
ALU2: ALU
ALU3: ALU
BRU1: BRU
AGU0 (256 bits): store address, load
AGU1 (256 bits): store address, load
AGU2 (256 bits): store address, load
FP0 (256 bits): VPU, DIV/SQRT
FP1 (256 bits): VPU, DIV/SQRT
FP2 (256 bits): VPU
FP3 (256 bits): VPU
FP4 (256 bits): FP store data
FP5 (256 bits): FP store data

Cycles executing div or sqrt instructions

Cycles summary

Front-end	10.83
Dispatch	8.25
Overall L1	10.83

Vectorization ratios

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

Vector efficiency ratios

all	9%
load	6%
store	7%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	12%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	9%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 10.83 cycles. At this rate:

1% of peak load performance is reached (1.85 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
5% of peak store performance is reached (3.32 out of 64.00 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 10.83 to 8.25 cycles (1.31x speedup).

ASM code

In the binary file, the address of the function is: 202f70

Instruction	Nb FU	ALU0/BRU0	ALU1	ALU2	ALU3	BRU1	AGU0	AGU1	AGU2	Latency	Recip. throughput	Vectorization
PUSH %RBP	1	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	0.17	N/A
PUSH %R15	1	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R14	1	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R12	1	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RBX	1	0	0	0	0	0	0	0	0	1	0.50	N/A
SUB $0x20,%RSP	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV (%RDI),%R14D	1	0	0	0	0	0	0.33	0.33	0.33	3	0.33	scal (6.3%)
LEA 0x2c87(%RIP),%RBX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOVQ $0,-0x38(%RBP)	1	0	0	0	0	0	0.33	0.33	0.33	4	0.50	scal (6.3%)
MOVQ $0x3344ffff,-0x28(%RBP)	1	0	0	0	0	0	0.33	0.33	0.33	4	0.50	scal (6.3%)
MOVQ $0x1,-0x40(%RBP)	1	0	0	0	0	0	0.33	0.33	0.33	4	0.50	scal (6.3%)
MOVL $0,-0x2c(%RBP)	1	0	0	0	0	0	0.33	0.33	0.33	4	0.50	scal (6.3%)
SUB $0x8,%RSP	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV $0x10c0,%RDI	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	N/A
LEA -0x40(%RBP),%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
LEA -0x2c(%RBP),%RCX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
LEA -0x38(%RBP),%R8	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
LEA -0x28(%RBP),%R9	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV %R14D,%ESI	1	0	0	0	0	0	0	0	0	0	0.17	scal (6.3%)
MOV $0x22,%EDX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (6.3%)
ADD %RBX,%RDI	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
PUSH $0x1	1	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH $0x1	1	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RAX	1	0	0	0	0	0	0	0	0	1	0.50	N/A
CALL 203a00 <@plt_start@+0x80>	2	0.50	0	0	0	0.50	0.33	0.33	0.33	0	0.50	N/A
ADD $0x20,%RSP	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV -0x28(%RBP),%RAX	1	0	0	0	0	0	0.33	0.33	0.33	3	0.33	N/A
MOV -0x38(%RBP),%R12	1	0	0	0	0	0	0.33	0.33	0.33	3	0.33	N/A
MOV $0x3344ffff,%R15D	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (6.3%)
CMP $0x3344ffff,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (12.5%)
CMOVL %RAX,%R15	1	0.50	0	0	0.50	0	0	0	0	1	0.50	scal (12.5%)
MOV %R15,-0x28(%RBP)	1	0	0	0	0	0	0.33	0.33	0.33	4	0.50	scal (12.5%)
CMP %R15,%R12	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (12.5%)
JG 203072 <main.omp_outlined.14+0x102>	1	0.50	0	0	0	0.50	0	0	0	1	0.50-1	N/A
MOV $0x3345011a0,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	N/A
XOR %ESI,%ESI	1	0	0	0	0	0	0	0	0	0	0.25	scal (6.3%)
ADD %RBX,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
LEA (%RAX,%R12,8),%RDI	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV %R15,%RAX	1	0	0	0	0	0	0	0	0	0	0.17	N/A
SUB %R12,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
LEA 0x8(,%RAX,8),%RDX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
CALL 203a10 <@plt_start@+0x90>	2	0.50	0	0	0	0.50	0.33	0.33	0.33	0	0.50	N/A
MOV $0x11a0,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	N/A
MOV $0x19a2811a0,%RDX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	scal (12.5%)
DEC %R12	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV $0x3ff0000000000000,%RCX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	scal (12.5%)
MOV $0x4000000000000000,%RSI	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	scal (12.5%)
ADD %RBX,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
ADD %RBX,%RDX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (12.5%)
NOPW (%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOV $0x10d8,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	N/A
MOV %R14D,%ESI	1	0	0	0	0	0	0	0	0	0	0.17	scal (6.3%)
ADD %RAX,%RBX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (12.5%)
MOV %RBX,%RDI	1	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 203a20 <@plt_start@+0xa0>	2	0.50	0	0	0	0.50	0.33	0.33	0.33	0	0.50	N/A
ADD $0x20,%RSP	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
POP %RBX	1	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R12	1	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R14	1	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R15	1	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %RBP	1	0	0	0	0	0	0	0	0	1	0.33	N/A
RET	1	0.50	0	0	0	0.50	0	0	0	1	0.50	N/A
NOPW (%RAX,%RAX,1)	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 1x8

Source file and lines	stream.c:271-275
Module	exec

gain
potential
hint
expert

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): for(i) a[i].x = b[i].x; (slow, non stride 1) => for(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: 3 occurrences►
- /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/build/stream-copy/src/stream.c:271
- /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/build/stream-copy/src/stream.c:275
- /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/build/stream-copy/src/stream.c:271

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 20 bytes. The binary function is storing 36 bytes.

General properties

nb instructions	64
nb uops	65
loop length	286
used x86 registers	13
used mmx registers	0
used xmm registers	0
used ymm registers	0
used zmm registers	0
nb stack references	4

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	10.83 cycles
front end	10.83 cycles

Back-end

	ALU0/BRU0	ALU1	ALU2	ALU3	BRU1	AGU0	AGU1	AGU2	FP0	FP1	FP2	FP3	FP4	FP5
uops	8.25	8.25	8.00	8.00	2.50	3.67	3.67	3.67	0.00	0.00	0.00	0.00	0.00	0.00
cycles	8.25	8.25	8.00	8.00	2.50	3.67	3.67	3.67	0.00	0.00	0.00	0.00	0.00	0.00

Execution ports to units layout:

ALU0/BRU0: ALU, BRU
ALU1: ALU
ALU2: ALU
ALU3: ALU
BRU1: BRU
AGU0 (256 bits): store address, load
AGU1 (256 bits): store address, load
AGU2 (256 bits): store address, load
FP0 (256 bits): VPU, DIV/SQRT
FP1 (256 bits): VPU, DIV/SQRT
FP2 (256 bits): VPU
FP3 (256 bits): VPU
FP4 (256 bits): FP store data
FP5 (256 bits): FP store data

Cycles executing div or sqrt instructions

Cycles summary

Front-end	10.83
Dispatch	8.25
Overall L1	10.83

Vectorization ratios

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

Vector efficiency ratios

all	9%
load	6%
store	7%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	12%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	9%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 10.83 cycles. At this rate:

1% of peak load performance is reached (1.85 out of 96.00 bytes loaded per cycle (GB/s @ 1GHz))
5% of peak store performance is reached (3.32 out of 64.00 bytes stored per cycle (GB/s @ 1GHz))

Front-end bottlenecks

ASM code

In the binary file, the address of the function is: 202f70

Instruction	Nb FU	ALU0/BRU0	ALU1	ALU2	ALU3	BRU1	AGU0	AGU1	AGU2	Latency	Recip. throughput	Vectorization
PUSH %RBP	1	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	0.17	N/A
PUSH %R15	1	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R14	1	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R12	1	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RBX	1	0	0	0	0	0	0	0	0	1	0.50	N/A
SUB $0x20,%RSP	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV (%RDI),%R14D	1	0	0	0	0	0	0.33	0.33	0.33	3	0.33	scal (6.3%)
LEA 0x2c87(%RIP),%RBX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOVQ $0,-0x38(%RBP)	1	0	0	0	0	0	0.33	0.33	0.33	4	0.50	scal (6.3%)
MOVQ $0x3344ffff,-0x28(%RBP)	1	0	0	0	0	0	0.33	0.33	0.33	4	0.50	scal (6.3%)
MOVQ $0x1,-0x40(%RBP)	1	0	0	0	0	0	0.33	0.33	0.33	4	0.50	scal (6.3%)
MOVL $0,-0x2c(%RBP)	1	0	0	0	0	0	0.33	0.33	0.33	4	0.50	scal (6.3%)
SUB $0x8,%RSP	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV $0x10c0,%RDI	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	N/A
LEA -0x40(%RBP),%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
LEA -0x2c(%RBP),%RCX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
LEA -0x38(%RBP),%R8	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
LEA -0x28(%RBP),%R9	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV %R14D,%ESI	1	0	0	0	0	0	0	0	0	0	0.17	scal (6.3%)
MOV $0x22,%EDX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (6.3%)
ADD %RBX,%RDI	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
PUSH $0x1	1	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH $0x1	1	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RAX	1	0	0	0	0	0	0	0	0	1	0.50	N/A
CALL 203a00 <@plt_start@+0x80>	2	0.50	0	0	0	0.50	0.33	0.33	0.33	0	0.50	N/A
ADD $0x20,%RSP	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV -0x28(%RBP),%RAX	1	0	0	0	0	0	0.33	0.33	0.33	3	0.33	N/A
MOV -0x38(%RBP),%R12	1	0	0	0	0	0	0.33	0.33	0.33	3	0.33	N/A
MOV $0x3344ffff,%R15D	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (6.3%)
CMP $0x3344ffff,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (12.5%)
CMOVL %RAX,%R15	1	0.50	0	0	0.50	0	0	0	0	1	0.50	scal (12.5%)
MOV %R15,-0x28(%RBP)	1	0	0	0	0	0	0.33	0.33	0.33	4	0.50	scal (12.5%)
CMP %R15,%R12	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (12.5%)
JG 203072 <main.omp_outlined.14+0x102>	1	0.50	0	0	0	0.50	0	0	0	1	0.50-1	N/A
MOV $0x3345011a0,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	N/A
XOR %ESI,%ESI	1	0	0	0	0	0	0	0	0	0	0.25	scal (6.3%)
ADD %RBX,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
LEA (%RAX,%R12,8),%RDI	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV %R15,%RAX	1	0	0	0	0	0	0	0	0	0	0.17	N/A
SUB %R12,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
LEA 0x8(,%RAX,8),%RDX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
CALL 203a10 <@plt_start@+0x90>	2	0.50	0	0	0	0.50	0.33	0.33	0.33	0	0.50	N/A
MOV $0x11a0,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	N/A
MOV $0x19a2811a0,%RDX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	scal (12.5%)
DEC %R12	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
MOV $0x3ff0000000000000,%RCX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	scal (12.5%)
MOV $0x4000000000000000,%RSI	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	scal (12.5%)
ADD %RBX,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
ADD %RBX,%RDX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (12.5%)
NOPW (%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOV $0x10d8,%RAX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.33	N/A
MOV %R14D,%ESI	1	0	0	0	0	0	0	0	0	0	0.17	scal (6.3%)
ADD %RAX,%RBX	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	scal (12.5%)
MOV %RBX,%RDI	1	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 203a20 <@plt_start@+0xa0>	2	0.50	0	0	0	0.50	0.33	0.33	0.33	0	0.50	N/A
ADD $0x20,%RSP	1	0.25	0.25	0.25	0.25	0	0	0	0	1	0.25	N/A
POP %RBX	1	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R12	1	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R14	1	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R15	1	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %RBP	1	0	0	0	0	0	0	0	0	1	0.33	N/A
RET	1	0.50	0	0	0	0.50	0	0	0	1	0.50	N/A
NOPW (%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0.09	N/A

▶Scalability Runs Description

Run 1x8	Number processes: 1Number nodes: NANumber processes per node: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to none --report-bindings Dataset: Run Directory: /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/run/oneview_runs/multicore/aocc_10/oneview_run_1773740769OMP_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: threadsOMP_NUM_THREADS: 8
Run 1x64	Number processes: 1Number processes per node: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to none --report-bindings Dataset: Run Directory: /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/run/oneview_runs/multicore/aocc_10/oneview_run_1773740769OMP_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
Run 1x96	Number processes: 1Number processes per node: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to none --report-bindings Dataset: Run Directory: /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/run/oneview_runs/multicore/aocc_10/oneview_run_1773740769OMP_NUM_THREADS: 96OMP_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 1x128	Number processes: 1Number processes per node: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to none --report-bindings Dataset: Run Directory: /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/run/oneview_runs/multicore/aocc_10/oneview_run_1773740769OMP_NUM_THREADS: 128OMP_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 1x160	Number processes: 1Number processes per node: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to none --report-bindings Dataset: Run Directory: /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/run/oneview_runs/multicore/aocc_10/oneview_run_1773740769OMP_NUM_THREADS: 160OMP_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 1x192	Number processes: 1Number processes per node: 1Run Command: <executable>MPI Command: mpirun -n <number_processes> --bind-to none --report-bindings Dataset: Run Directory: /beegfs/hackathon/users/eoseret/qaas_runs_test/ins01.benchmarkcenter.megware.com/177-374-0012/stream-copy/run/oneview_runs/multicore/aocc_10/oneview_run_1773740769OMP_NUM_THREADS: 192OMP_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

(1x8) Efficiency	(1x8) Potential Speed-Up (%)	(1x64) Efficiency	(1x64) Potential Speed-Up (%)	(1x96) Efficiency	(1x96) Potential Speed-Up (%)	(1x128) Efficiency	(1x128) Potential Speed-Up (%)	(1x160) Efficiency	(1x160) Potential Speed-Up (%)	(1x192) Efficiency	(1x192) Potential Speed-Up (%)
1	0	0.75	0.14	0.46	0.33	0.3	0.46	0.2	0.63	0.16	0.69

Speed-Up and Efficiency

▶Detailed Speed-Up and Efficiency

Run	Number of threads	Efficiency (ideal is 1)	Speedup	Ideal Speedup	Time (s)	Coverage (%)
1x8	8	1	1	1	0.089999996125698	1.4201951026917
1x64	57	0.75	6.01	8	0.030000001192093	0.56658381223679
1x96	93	0.46	5.57	12	0.025000000372529	0.61133450269699
1x128	128	0.3	4.86	16	0.029999999329448	0.65584015846252
1x160	159	0.2	4.02	20	0.029999999329448	0.78549575805664
1x192	176	0.16	3.91	24	0.050000000745058	0.8226124048233

Name	Coverage (%)	Time (s)
▼main.omp_outlined.14–	1.42	0.07
○Loop 2 - stream.c:272-274 - exec	1.42	0.07

Report Configuration

Vectorization

Details

Workaround

Execution units bottlenecks

CALL instructions

Details

Type of elements and instruction set

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

General properties

Front-end

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Cycles summary

Vectorization ratios

Vector efficiency ratios

Cycles and memory resources usage

Front-end bottlenecks

ASM code

Vectorization

Details

Workaround

Execution units bottlenecks

CALL instructions

Details

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

▶Scalability Runs Description

▼Columns Filter

Speed-Up and Efficiency

▶Detailed Speed-Up and Efficiency