Loop Id: 4041 | Module: exec | Source: vector.c:413-416 | Coverage: 0.15% |
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Loop Id: 4041 | Module: exec | Source: vector.c:413-416 | Coverage: 0.15% |
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0x4d7bd0 VMULPD (%RDX,%RSI,8),%YMM1,%YMM2 [1] |
0x4d7bd5 VMOVUPD %YMM2,(%RDX,%RSI,8) [1] |
0x4d7bda ADD $0x4,%RSI |
0x4d7bde CMP %RDI,%RSI |
0x4d7be1 JLE 4d7bd0 |
/home/kcamus/qaas_runs/169-443-9681/intel/AMG/build/AMG/AMG/seq_mv/vector.c: 413 - 416 |
-------------------------------------------------------------------------------- |
413: #pragma omp parallel for private(i) HYPRE_SMP_SCHEDULE |
414: #endif |
415: for (i = 0; i < size; i++) |
416: y_data[i] *= alpha; |
Coverage (%) | Name | Source Location | Module |
---|---|---|---|
►100.00+ | __kmp_invoke_microtask | libiomp5.so | |
○ | __kmp_fork_call | libiomp5.so | |
○ | __kmpc_fork_call | libiomp5.so | |
○ | hypre_SeqVectorScale | vector.c:422 | exec |
○ | hypre_PCGSolve | pcg.c:709 | exec |
○ | main | amg.c:419 | exec |
○ | __libc_init_first | libc.so.6 |
Path / |
Metric | Value |
---|---|
CQA speedup if no scalar integer | 1.00 |
CQA speedup if FP arith vectorized | 1.25 |
CQA speedup if fully vectorized | 2.00 |
CQA speedup if no inter-iteration dependency | NA |
CQA speedup if next bottleneck killed | 1.25 |
Bottlenecks | micro-operation queue, |
Function | hypre_SeqVectorScale.extracted |
Source | vector.c:413-416 |
Source loop unroll info | unrolled by 4 |
Source loop unroll confidence level | max |
Unroll/vectorization loop type | main |
Unroll factor | 4 |
CQA cycles | 1.25 |
CQA cycles if no scalar integer | 1.25 |
CQA cycles if FP arith vectorized | 1.00 |
CQA cycles if fully vectorized | 0.63 |
Front-end cycles | 1.25 |
DIV/SQRT cycles | 1.00 |
P0 cycles | 0.75 |
P1 cycles | 0.83 |
P2 cycles | 0.50 |
P3 cycles | 1.00 |
P4 cycles | 0.75 |
P5 cycles | 0.50 |
P6 cycles | 0.67 |
P7 cycles | 0.00 |
Inter-iter dependencies cycles | 1 |
FE+BE cycles (UFS) | 1.41 |
Stall cycles (UFS) | 0.00 |
Nb insns | 5.00 |
Nb uops | 4.00 |
Nb loads | 1.00 |
Nb stores | 1.00 |
Nb stack references | 0.00 |
FLOP/cycle | 3.20 |
Nb FLOP add-sub | 0.00 |
Nb FLOP mul | 4.00 |
Nb FLOP fma | 0.00 |
Nb FLOP div | 0.00 |
Nb FLOP rcp | 0.00 |
Nb FLOP sqrt | 0.00 |
Nb FLOP rsqrt | 0.00 |
Bytes/cycle | 51.20 |
Bytes prefetched | 0.00 |
Bytes loaded | 32.00 |
Bytes stored | 32.00 |
Stride 0 | 0.00 |
Stride 1 | 1.00 |
Stride n | 0.00 |
Stride unknown | 0.00 |
Stride indirect | 0.00 |
Vectorization ratio all | 100.00 |
Vectorization ratio load | 100.00 |
Vectorization ratio store | 100.00 |
Vectorization ratio mul | 100.00 |
Vectorization ratio add_sub | NA |
Vectorization ratio fma | NA |
Vectorization ratio div_sqrt | NA |
Vectorization ratio other | NA |
Vector-efficiency ratio all | 50.00 |
Vector-efficiency ratio load | 50.00 |
Vector-efficiency ratio store | 50.00 |
Vector-efficiency ratio mul | 50.00 |
Vector-efficiency ratio add_sub | NA |
Vector-efficiency ratio fma | NA |
Vector-efficiency ratio div_sqrt | NA |
Vector-efficiency ratio other | NA |
Metric | Value |
---|---|
CQA speedup if no scalar integer | 1.00 |
CQA speedup if FP arith vectorized | 1.25 |
CQA speedup if fully vectorized | 2.00 |
CQA speedup if no inter-iteration dependency | NA |
CQA speedup if next bottleneck killed | 1.25 |
Bottlenecks | micro-operation queue, |
Function | hypre_SeqVectorScale.extracted |
Source | vector.c:413-416 |
Source loop unroll info | unrolled by 4 |
Source loop unroll confidence level | max |
Unroll/vectorization loop type | main |
Unroll factor | 4 |
CQA cycles | 1.25 |
CQA cycles if no scalar integer | 1.25 |
CQA cycles if FP arith vectorized | 1.00 |
CQA cycles if fully vectorized | 0.63 |
Front-end cycles | 1.25 |
DIV/SQRT cycles | 1.00 |
P0 cycles | 0.75 |
P1 cycles | 0.83 |
P2 cycles | 0.50 |
P3 cycles | 1.00 |
P4 cycles | 0.75 |
P5 cycles | 0.50 |
P6 cycles | 0.67 |
P7 cycles | 0.00 |
Inter-iter dependencies cycles | 1 |
FE+BE cycles (UFS) | 1.41 |
Stall cycles (UFS) | 0.00 |
Nb insns | 5.00 |
Nb uops | 4.00 |
Nb loads | 1.00 |
Nb stores | 1.00 |
Nb stack references | 0.00 |
FLOP/cycle | 3.20 |
Nb FLOP add-sub | 0.00 |
Nb FLOP mul | 4.00 |
Nb FLOP fma | 0.00 |
Nb FLOP div | 0.00 |
Nb FLOP rcp | 0.00 |
Nb FLOP sqrt | 0.00 |
Nb FLOP rsqrt | 0.00 |
Bytes/cycle | 51.20 |
Bytes prefetched | 0.00 |
Bytes loaded | 32.00 |
Bytes stored | 32.00 |
Stride 0 | 0.00 |
Stride 1 | 1.00 |
Stride n | 0.00 |
Stride unknown | 0.00 |
Stride indirect | 0.00 |
Vectorization ratio all | 100.00 |
Vectorization ratio load | 100.00 |
Vectorization ratio store | 100.00 |
Vectorization ratio mul | 100.00 |
Vectorization ratio add_sub | NA |
Vectorization ratio fma | NA |
Vectorization ratio div_sqrt | NA |
Vectorization ratio other | NA |
Vector-efficiency ratio all | 50.00 |
Vector-efficiency ratio load | 50.00 |
Vector-efficiency ratio store | 50.00 |
Vector-efficiency ratio mul | 50.00 |
Vector-efficiency ratio add_sub | NA |
Vector-efficiency ratio fma | NA |
Vector-efficiency ratio div_sqrt | NA |
Vector-efficiency ratio other | NA |
Path / |
Function | hypre_SeqVectorScale.extracted |
Source file and lines | vector.c:413-416 |
Module | exec |
nb instructions | 5 |
nb uops | 4 |
loop length | 19 |
used x86 registers | 3 |
used mmx registers | 0 |
used xmm registers | 0 |
used ymm registers | 2 |
used zmm registers | 0 |
nb stack references | 0 |
micro-operation queue | 1.25 cycles |
front end | 1.25 cycles |
P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
---|---|---|---|---|---|---|---|---|
uops | 1.00 | 0.75 | 0.83 | 0.50 | 1.00 | 0.75 | 0.50 | 0.67 |
cycles | 1.00 | 0.75 | 0.83 | 0.50 | 1.00 | 0.75 | 0.50 | 0.67 |
Cycles executing div or sqrt instructions | NA |
Longest recurrence chain latency (RecMII) | 1.00 |
FE+BE cycles | 1.41 |
Stall cycles | 0.00 |
Front-end | 1.25 |
Dispatch | 1.00 |
Data deps. | 1.00 |
Overall L1 | 1.25 |
all | 100% |
load | 100% |
store | 100% |
mul | 100% |
add-sub | NA (no add-sub vectorizable/vectorized instructions) |
fma | NA (no fma vectorizable/vectorized instructions) |
div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
other | NA (no other vectorizable/vectorized instructions) |
all | 50% |
load | 50% |
store | 50% |
mul | 50% |
add-sub | NA (no add-sub vectorizable/vectorized instructions) |
fma | NA (no fma vectorizable/vectorized instructions) |
div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
other | NA (no other vectorizable/vectorized instructions) |
Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput |
---|---|---|---|---|---|---|---|---|---|---|---|
VMULPD (%RDX,%RSI,8),%YMM1,%YMM2 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 |
VMOVUPD %YMM2,(%RDX,%RSI,8) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 |
ADD $0x4,%RSI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
CMP %RDI,%RSI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
JLE 4d7bd0 | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 |
Function | hypre_SeqVectorScale.extracted |
Source file and lines | vector.c:413-416 |
Module | exec |
nb instructions | 5 |
nb uops | 4 |
loop length | 19 |
used x86 registers | 3 |
used mmx registers | 0 |
used xmm registers | 0 |
used ymm registers | 2 |
used zmm registers | 0 |
nb stack references | 0 |
micro-operation queue | 1.25 cycles |
front end | 1.25 cycles |
P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
---|---|---|---|---|---|---|---|---|
uops | 1.00 | 0.75 | 0.83 | 0.50 | 1.00 | 0.75 | 0.50 | 0.67 |
cycles | 1.00 | 0.75 | 0.83 | 0.50 | 1.00 | 0.75 | 0.50 | 0.67 |
Cycles executing div or sqrt instructions | NA |
Longest recurrence chain latency (RecMII) | 1.00 |
FE+BE cycles | 1.41 |
Stall cycles | 0.00 |
Front-end | 1.25 |
Dispatch | 1.00 |
Data deps. | 1.00 |
Overall L1 | 1.25 |
all | 100% |
load | 100% |
store | 100% |
mul | 100% |
add-sub | NA (no add-sub vectorizable/vectorized instructions) |
fma | NA (no fma vectorizable/vectorized instructions) |
div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
other | NA (no other vectorizable/vectorized instructions) |
all | 50% |
load | 50% |
store | 50% |
mul | 50% |
add-sub | NA (no add-sub vectorizable/vectorized instructions) |
fma | NA (no fma vectorizable/vectorized instructions) |
div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
other | NA (no other vectorizable/vectorized instructions) |
Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput |
---|---|---|---|---|---|---|---|---|---|---|---|
VMULPD (%RDX,%RSI,8),%YMM1,%YMM2 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 |
VMOVUPD %YMM2,(%RDX,%RSI,8) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 |
ADD $0x4,%RSI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
CMP %RDI,%RSI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 |
JLE 4d7bd0 | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 |