OV - exec - Function hypre_IJVectorSetValuesPar.omp

	Function: hypre_IJVectorSetValuesPar.omp_outlined	Module: exec	Source: IJVector_parcsr.c:440-443	Coverage (incl. loops): 0.02% \| (excl. loops): 0.00%

/home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c: 440 - 443

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

440: #pragma omp parallel for private(j) HYPRE_SMP_SCHEDULE

441: #endif

442:       for (j = 0; j < num_values; j++)

443:          data[j] = values[j];

0x2f1cf0 PUSH	%RBP

0x2f1cf1 MOV	%RSP,%RBP

0x2f1cf4 PUSH	%R15

0x2f1cf6 PUSH	%R14

0x2f1cf8 PUSH	%R12

0x2f1cfa PUSH	%RBX

0x2f1cfb SUB	$0x20,%RSP

0x2f1cff MOV	(%RDX),%R12

0x2f1d02 TEST	%R12,%R12

0x2f1d05 JLE	2f1e95

0x2f1d0b MOV	(%RDI),%EBX

0x2f1d0d DEC	%R12

0x2f1d10 MOV	%R8,%R15

0x2f1d13 MOV	%RCX,%R14

0x2f1d16 MOVQ	$0,-0x38(%RBP)

0x2f1d1e MOVQ	$0x1,-0x40(%RBP)

0x2f1d26 MOVL	$0,-0x2c(%RBP)

0x2f1d2d MOV	%R12,-0x28(%RBP)

0x2f1d31 SUB	$0x8,%RSP

0x2f1d35 LEA	-0x40(%RBP),%RAX

0x2f1d39 LEA	0x195c0(%RIP),%RDI

0x2f1d40 LEA	-0x2c(%RBP),%RCX

0x2f1d44 LEA	-0x38(%RBP),%R8

0x2f1d48 LEA	-0x28(%RBP),%R9

0x2f1d4c MOV	%EBX,%ESI

0x2f1d4e MOV	$0x22,%EDX

0x2f1d53 PUSH	$0x1

0x2f1d55 PUSH	$0x1

0x2f1d57 PUSH	%RAX

0x2f1d58 CALL	305fa0 <@plt_start@+0x90>

0x2f1d5d ADD	$0x20,%RSP

0x2f1d61 MOV	-0x28(%RBP),%RAX

0x2f1d65 CMP	%R12,%RAX

0x2f1d68 CMOVL	%RAX,%R12

0x2f1d6c MOV	-0x38(%RBP),%RAX

0x2f1d70 MOV	%R12,-0x28(%RBP)

0x2f1d74 CMP	%R12,%RAX

0x2f1d77 JG	2f1e84

0x2f1d7d MOV	(%R15),%RCX

0x2f1d80 MOV	(%R14),%RDX

0x2f1d83 MOV	%R12,%RSI

0x2f1d86 SUB	%RAX,%RSI

0x2f1d89 INC	%RSI

0x2f1d8c CMP	$0x4,%RSI

0x2f1d90 JB	2f1e5f

0x2f1d96 LEA	(%RDX,%RAX,8),%RDI

0x2f1d9a LEA	(%RCX,%RAX,8),%R8

0x2f1d9e MOV	%RDI,%R9

0x2f1da1 SUB	%R8,%R9

0x2f1da4 CMP	$0x100,%R9

0x2f1dab JB	2f1e5f

0x2f1db1 CMP	$0x20,%RSI

0x2f1db5 JAE	2f1dbc

0x2f1db7 XOR	%R9D,%R9D

0x2f1dba JMP	2f1e32

0x2f1dbc LEA	(,%RAX,8),%R11

0x2f1dc4 MOV	%RSI,%R9

0x2f1dc7 AND	$-0x20,%R9

0x2f1dcb XOR	%R14D,%R14D

0x2f1dce LEA	0xc0(%RCX,%R11,1),%R10

0x2f1dd6 LEA	0xc0(%RDX,%R11,1),%R11

0x2f1dde XCHG	%AX,%AX

(3449) 0x2f1de0 VMOVUPS	-0xc0(%R10,%R14,8),%ZMM0

(3449) 0x2f1de8 VMOVUPS	-0x80(%R10,%R14,8),%ZMM1

(3449) 0x2f1df0 VMOVUPS	-0x40(%R10,%R14,8),%ZMM2

(3449) 0x2f1df8 VMOVUPS	(%R10,%R14,8),%ZMM3

(3449) 0x2f1dff VMOVUPS	%ZMM0,-0xc0(%R11,%R14,8)

(3449) 0x2f1e07 VMOVUPS	%ZMM1,-0x80(%R11,%R14,8)

(3449) 0x2f1e0f VMOVUPS	%ZMM2,-0x40(%R11,%R14,8)

(3449) 0x2f1e17 VMOVUPS	%ZMM3,(%R11,%R14,8)

(3449) 0x2f1e1e ADD	$0x20,%R14

(3449) 0x2f1e22 CMP	%R14,%R9

(3449) 0x2f1e25 JNE	2f1de0

0x2f1e27 CMP	%R9,%RSI

0x2f1e2a JE	2f1e84

0x2f1e2c TEST	$0x1c,%SIL

0x2f1e30 JE	2f1e5c

0x2f1e32 MOV	%RSI,%R10

0x2f1e35 AND	$-0x4,%R10

0x2f1e39 ADD	%R10,%RAX

0x2f1e3c NOPL	(%RAX)

(3450) 0x2f1e40 VMOVUPS	(%R8,%R9,8),%YMM0

(3450) 0x2f1e46 VMOVUPS	%YMM0,(%RDI,%R9,8)

(3450) 0x2f1e4c ADD	$0x4,%R9

(3450) 0x2f1e50 CMP	%R9,%R10

(3450) 0x2f1e53 JNE	2f1e40

0x2f1e55 CMP	%R10,%RSI

0x2f1e58 JNE	2f1e5f

0x2f1e5a JMP	2f1e84

0x2f1e5c ADD	%R9,%RAX

0x2f1e5f DEC	%RAX

0x2f1e62 NOPW	%CS:(%RAX,%RAX,1)

(3448) 0x2f1e70 VMOVSD	0x8(%RCX,%RAX,8),%XMM0

(3448) 0x2f1e76 VMOVSD	%XMM0,0x8(%RDX,%RAX,8)

(3448) 0x2f1e7c INC	%RAX

(3448) 0x2f1e7f CMP	%R12,%RAX

(3448) 0x2f1e82 JL	2f1e70

0x2f1e84 LEA	0x1948d(%RIP),%RDI

0x2f1e8b MOV	%EBX,%ESI

0x2f1e8d VZEROUPPER

0x2f1e90 CALL	305fb0 <@plt_start@+0xa0>

0x2f1e95 ADD	$0x20,%RSP

0x2f1e99 POP	%RBX

0x2f1e9a POP	%R12

0x2f1e9c POP	%R14

0x2f1e9e POP	%R15

0x2f1ea0 POP	%RBP

0x2f1ea1 RET

0x2f1ea2 NOPW	%CS:(%RAX,%RAX,1)

Coverage (%)	Name	Source Location	Module

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 aocc_2

Source file and lines	IJVector_parcsr.c:440-443
Module	exec

The function is defined in /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:440-443.

Warnings:
Ignoring paths for analysis

gain
potential
hint
expert

Vectorization

Your function is probably not vectorized. Only 11% 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 11.13 to 0.85 cycles (13.04x speedup).

Details

Store and arithmetical 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: 2 occurrences►
- /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:440
- /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:440

Complex instructions

Detected COMPLEX INSTRUCTIONS.

Details

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

CMOVL: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:442
LEA: 2 occurrences►
- /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:442
- /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:442

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 44 bytes. The binary function is storing 36 bytes.

General properties

nb instructions	88
nb uops	89
loop length	336
used x86 registers	15
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	11.13 cycles
front end	11.13 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15
uops	8.17	8.17	8.17	8.17	8.17	8.17	3.75	3.75	3.75	3.75	0.00	0.00	0.00	0.00	0.00	0.00
cycles	8.17	8.17	8.17	8.17	8.17	8.17	3.75	3.75	3.75	3.75	0.00	0.00	0.00	0.00	0.00	0.00

Execution ports to units layout:

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

Cycles executing div or sqrt instructions

Cycles summary

Front-end	11.13
Dispatch	8.17
Overall L1	11.13

Vectorization ratios

all	3%
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	5%

Vector efficiency ratios

all	11%
load	9%
store	8%
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	12%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 11.13 cycles. At this rate:

1% of peak load performance is reached (3.96 out of 256.00 bytes loaded per cycle (GB/s @ 1GHz))
2% of peak store performance is reached (3.24 out of 128.00 bytes stored per cycle (GB/s @ 1GHz))

Front-end bottlenecks

Performance is limited by instruction throughput (loading/decoding program instructions to execution core) (front-end is a bottleneck). By removing all these bottlenecks, you can lower the cost of an iteration from 11.13 to 8.17 cycles (1.36x speedup).

ASM code

In the binary file, the address of the function is: 2f1cf0

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	Latency	Recip. throughput	Vectorization
PUSH %RBP	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
MOV %RSP,%RBP	1	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
PUSH %R15	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R14	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R12	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RBX	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
SUB $0x20,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
MOV (%RDX),%R12	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	scal (12.5%)
TEST %R12,%R12	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JLE 2f1e95 <hypre_IJVectorSetValuesPar.omp_outlined+0x1a5>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
MOV (%RDI),%EBX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	scal (6.3%)
DEC %R12	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
MOV %R8,%R15	1	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV %RCX,%R14	1	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOVQ $0,-0x38(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	4	0.50	scal (6.3%)
MOVQ $0x1,-0x40(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	4	0.50	scal (6.3%)
MOVL $0,-0x2c(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	4	0.50	scal (6.3%)
MOV %R12,-0x28(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	4	0.50	scal (12.5%)
SUB $0x8,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
LEA -0x40(%RBP),%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
LEA 0x195c0(%RIP),%RDI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
LEA -0x2c(%RBP),%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
LEA -0x38(%RBP),%R8	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
LEA -0x28(%RBP),%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
MOV %EBX,%ESI	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (6.3%)
MOV $0x22,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
PUSH $0x1	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH $0x1	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RAX	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
CALL 305fa0 <@plt_start@+0x90>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0.50	N/A
ADD $0x20,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
MOV -0x28(%RBP),%RAX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	N/A
CMP %R12,%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
CMOVL %RAX,%R12	2	0.33	0.33	0.33	0.33	0.33	0.33	0	0	0	0	1	0.33	scal (12.5%)
MOV -0x38(%RBP),%RAX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	N/A
MOV %R12,-0x28(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	4	0.50	scal (12.5%)
CMP %R12,%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JG 2f1e84 <hypre_IJVectorSetValuesPar.omp_outlined+0x194>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
MOV (%R15),%RCX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	N/A
MOV (%R14),%RDX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	N/A
MOV %R12,%RSI	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
SUB %RAX,%RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
INC %RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
CMP $0x4,%RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JB 2f1e5f <hypre_IJVectorSetValuesPar.omp_outlined+0x16f>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
LEA (%RDX,%RAX,8),%RDI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
LEA (%RCX,%RAX,8),%R8	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
MOV %RDI,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
SUB %R8,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
CMP $0x100,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JB 2f1e5f <hypre_IJVectorSetValuesPar.omp_outlined+0x16f>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
CMP $0x20,%RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JAE 2f1dbc <hypre_IJVectorSetValuesPar.omp_outlined+0xcc>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
XOR %R9D,%R9D	1	0	0	0	0	0	0	0	0	0	0	0	0.25	scal (6.3%)
JMP 2f1e32 <hypre_IJVectorSetValuesPar.omp_outlined+0x142>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	1	N/A
LEA (,%RAX,8),%R11	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
MOV %RSI,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
AND $-0x20,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
XOR %R14D,%R14D	1	0	0	0	0	0	0	0	0	0	0	0	0.25	N/A
LEA 0xc0(%RCX,%R11,1),%R10	2	0	0	0.50	0.50	0	0	0.25	0.25	0.25	0.25	2	0.50	N/A
LEA 0xc0(%RDX,%R11,1),%R11	2	0	0	0.50	0.50	0	0	0.25	0.25	0.25	0.25	2	0.50	N/A
XCHG %AX,%AX	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
CMP %R9,%RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JE 2f1e84 <hypre_IJVectorSetValuesPar.omp_outlined+0x194>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
TEST $0x1c,%SIL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
JE 2f1e5c <hypre_IJVectorSetValuesPar.omp_outlined+0x16c>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
MOV %RSI,%R10	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
AND $-0x4,%R10	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
ADD %R10,%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
NOPL (%RAX)	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
CMP %R10,%RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JNE 2f1e5f <hypre_IJVectorSetValuesPar.omp_outlined+0x16f>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
JMP 2f1e84 <hypre_IJVectorSetValuesPar.omp_outlined+0x194>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	1	N/A
ADD %R9,%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
DEC %RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
NOPW %CS:(%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
LEA 0x1948d(%RIP),%RDI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
MOV %EBX,%ESI	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (6.3%)
VZEROUPPER	1	0	0	0	0	0	0	0	0	0	0	0	1	vect (25.0%)
CALL 305fb0 <@plt_start@+0xa0>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0.50	N/A
ADD $0x20,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
POP %RBX	1	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R12	1	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R14	1	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R15	1	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %RBP	1	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
RET	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50	N/A
NOPW %CS:(%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A

The code analyzed by CQA in that panel excludes loops and represents 0.00% of application time for run aocc_2

Source file and lines	IJVector_parcsr.c:440-443
Module	exec

The function is defined in /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:440-443.

Warnings:
Ignoring paths for analysis

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: 2 occurrences►
- /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:440
- /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:440

Complex instructions

Detected COMPLEX INSTRUCTIONS.

Details

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

CMOVL: 1 occurrences►
- /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:442
LEA: 2 occurrences►
- /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:442
- /home/eoseret/qaas_runs_ZEN5/173-989-6379/intel/AMG/build/AMG/AMG/IJ_mv/IJVector_parcsr.c:442

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 44 bytes. The binary function is storing 36 bytes.

General properties

nb instructions	88
nb uops	89
loop length	336
used x86 registers	15
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	11.13 cycles
front end	11.13 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15
uops	8.17	8.17	8.17	8.17	8.17	8.17	3.75	3.75	3.75	3.75	0.00	0.00	0.00	0.00	0.00	0.00
cycles	8.17	8.17	8.17	8.17	8.17	8.17	3.75	3.75	3.75	3.75	0.00	0.00	0.00	0.00	0.00	0.00

Execution ports to units layout:

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

Cycles executing div or sqrt instructions

Cycles summary

Front-end	11.13
Dispatch	8.17
Overall L1	11.13

Vectorization ratios

all	3%
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	5%

Vector efficiency ratios

all	11%
load	9%
store	8%
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	12%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 11.13 cycles. At this rate:

1% of peak load performance is reached (3.96 out of 256.00 bytes loaded per cycle (GB/s @ 1GHz))
2% of peak store performance is reached (3.24 out of 128.00 bytes stored per cycle (GB/s @ 1GHz))

Front-end bottlenecks

ASM code

In the binary file, the address of the function is: 2f1cf0

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	Latency	Recip. throughput	Vectorization
PUSH %RBP	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
MOV %RSP,%RBP	1	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
PUSH %R15	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R14	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R12	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RBX	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
SUB $0x20,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
MOV (%RDX),%R12	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	scal (12.5%)
TEST %R12,%R12	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JLE 2f1e95 <hypre_IJVectorSetValuesPar.omp_outlined+0x1a5>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
MOV (%RDI),%EBX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	scal (6.3%)
DEC %R12	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
MOV %R8,%R15	1	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV %RCX,%R14	1	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOVQ $0,-0x38(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	4	0.50	scal (6.3%)
MOVQ $0x1,-0x40(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	4	0.50	scal (6.3%)
MOVL $0,-0x2c(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	4	0.50	scal (6.3%)
MOV %R12,-0x28(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	4	0.50	scal (12.5%)
SUB $0x8,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
LEA -0x40(%RBP),%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
LEA 0x195c0(%RIP),%RDI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
LEA -0x2c(%RBP),%RCX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
LEA -0x38(%RBP),%R8	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
LEA -0x28(%RBP),%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
MOV %EBX,%ESI	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (6.3%)
MOV $0x22,%EDX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
PUSH $0x1	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH $0x1	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RAX	1	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
CALL 305fa0 <@plt_start@+0x90>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0.50	N/A
ADD $0x20,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
MOV -0x28(%RBP),%RAX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	N/A
CMP %R12,%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
CMOVL %RAX,%R12	2	0.33	0.33	0.33	0.33	0.33	0.33	0	0	0	0	1	0.33	scal (12.5%)
MOV -0x38(%RBP),%RAX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	N/A
MOV %R12,-0x28(%RBP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	4	0.50	scal (12.5%)
CMP %R12,%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JG 2f1e84 <hypre_IJVectorSetValuesPar.omp_outlined+0x194>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
MOV (%R15),%RCX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	N/A
MOV (%R14),%RDX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	3	0.25	N/A
MOV %R12,%RSI	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
SUB %RAX,%RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
INC %RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
CMP $0x4,%RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JB 2f1e5f <hypre_IJVectorSetValuesPar.omp_outlined+0x16f>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
LEA (%RDX,%RAX,8),%RDI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
LEA (%RCX,%RAX,8),%R8	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
MOV %RDI,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
SUB %R8,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
CMP $0x100,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JB 2f1e5f <hypre_IJVectorSetValuesPar.omp_outlined+0x16f>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
CMP $0x20,%RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JAE 2f1dbc <hypre_IJVectorSetValuesPar.omp_outlined+0xcc>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
XOR %R9D,%R9D	1	0	0	0	0	0	0	0	0	0	0	0	0.25	scal (6.3%)
JMP 2f1e32 <hypre_IJVectorSetValuesPar.omp_outlined+0x142>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	1	N/A
LEA (,%RAX,8),%R11	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
MOV %RSI,%R9	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
AND $-0x20,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
XOR %R14D,%R14D	1	0	0	0	0	0	0	0	0	0	0	0	0.25	N/A
LEA 0xc0(%RCX,%R11,1),%R10	2	0	0	0.50	0.50	0	0	0.25	0.25	0.25	0.25	2	0.50	N/A
LEA 0xc0(%RDX,%R11,1),%R11	2	0	0	0.50	0.50	0	0	0.25	0.25	0.25	0.25	2	0.50	N/A
XCHG %AX,%AX	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
CMP %R9,%RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JE 2f1e84 <hypre_IJVectorSetValuesPar.omp_outlined+0x194>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
TEST $0x1c,%SIL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
JE 2f1e5c <hypre_IJVectorSetValuesPar.omp_outlined+0x16c>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
MOV %RSI,%R10	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
AND $-0x4,%R10	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
ADD %R10,%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
NOPL (%RAX)	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
CMP %R10,%RSI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	scal (12.5%)
JNE 2f1e5f <hypre_IJVectorSetValuesPar.omp_outlined+0x16f>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50-1	N/A
JMP 2f1e84 <hypre_IJVectorSetValuesPar.omp_outlined+0x194>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	1	N/A
ADD %R9,%RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
DEC %RAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
NOPW %CS:(%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
LEA 0x1948d(%RIP),%RDI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.25	N/A
MOV %EBX,%ESI	1	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (6.3%)
VZEROUPPER	1	0	0	0	0	0	0	0	0	0	0	0	1	vect (25.0%)
CALL 305fb0 <@plt_start@+0xa0>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0.50	N/A
ADD $0x20,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	1	0.17	N/A
POP %RBX	1	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R12	1	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R14	1	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R15	1	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %RBP	1	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
RET	1	0	0	0	0.33	0.33	0.33	0	0	0	0	1	0.50	N/A
NOPW %CS:(%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A

Name	Coverage (%)	Time (s)
▼hypre_IJVectorSetValuesPar.omp_outlined–	0.02	0.01
○Loop 3449 - IJVector_parcsr.c:443-443 - exec	0.02	0.01
○Loop 3448 - IJVector_parcsr.c:442-443 - exec	0.00	0.00
○Loop 3450 - IJVector_parcsr.c:443-443 - exec	0.00	0.00

Report Configuration

Vectorization

Details

Workaround

Execution units bottlenecks

CALL instructions

Details

Complex 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

Vectorization

Details

Workaround

Execution units bottlenecks

CALL instructions

Details

Complex 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