| Loop Id: 2 | Module: kmeans-gcc-O3-funroll | Source: main.cpp:72-79 | Coverage: 5.78% |
|---|
| Loop Id: 2 | Module: kmeans-gcc-O3-funroll | Source: main.cpp:72-79 | Coverage: 5.78% |
|---|
0x2a70 MOV %R8D,%EBP |
0x2a73 VMOVSD (%RDI),%XMM3 |
0x2a77 VMOVSD 0x8(%RDI),%XMM2 |
0x2a7c MOV %R10,%RBX |
0x2a7f XOR %EDX,%EDX |
0x2a81 VMOVAPD %XMM5,%XMM0 |
0x2a85 AND $0x3,%EBP |
0x2a88 JE 2b19 |
0x2a8e CMP $0x1,%EBP |
0x2a91 JE 2aea |
0x2a93 CMP $0x2,%EBP |
0x2a96 JE 2ac5 |
0x2a98 VSUBSD 0x8(%R10),%XMM2,%XMM4 |
0x2a9e VSUBSD (%R10),%XMM3,%XMM1 |
0x2aa3 VMULSD %XMM4,%XMM4,%XMM6 |
0x2aa7 VFMADD132SD %XMM1,%XMM6,%XMM1 |
0x2aac VCOMISD %XMM1,%XMM5 |
0x2ab0 JBE 2abc |
0x2ab2 MOVL $0,(%RSI) |
0x2ab8 VMOVAPD %XMM1,%XMM0 |
0x2abc MOV $0x1,%EDX |
0x2ac1 LEA 0x10(%R10),%RBX |
0x2ac5 VSUBSD 0x8(%RBX),%XMM2,%XMM8 |
0x2aca VSUBSD (%RBX),%XMM3,%XMM7 |
0x2ace VMULSD %XMM8,%XMM8,%XMM9 |
0x2ad3 VFMADD132SD %XMM7,%XMM9,%XMM7 |
0x2ad8 VCOMISD %XMM7,%XMM0 |
0x2adc JBE 2ae4 |
0x2ade MOV %EDX,(%RSI) |
0x2ae0 VMOVAPD %XMM7,%XMM0 |
0x2ae4 INC %EDX |
0x2ae6 ADD $0x10,%RBX |
0x2aea VSUBSD 0x8(%RBX),%XMM2,%XMM11 |
0x2aef VSUBSD (%RBX),%XMM3,%XMM10 |
0x2af3 VMULSD %XMM11,%XMM11,%XMM12 |
0x2af8 VFMADD132SD %XMM10,%XMM12,%XMM10 |
0x2afd VCOMISD %XMM10,%XMM0 |
0x2b02 JBE 2b0a |
0x2b04 MOV %EDX,(%RSI) |
0x2b06 VMOVAPD %XMM10,%XMM0 |
0x2b0a INC %EDX |
0x2b0c ADD $0x10,%RBX |
0x2b10 CMP %EDX,%R8D |
0x2b13 JE 2bb7 |
(1) 0x2b19 VSUBSD 0x8(%RBX),%XMM2,%XMM14 |
(1) 0x2b1e VSUBSD (%RBX),%XMM3,%XMM13 |
(1) 0x2b22 VMULSD %XMM14,%XMM14,%XMM15 |
(1) 0x2b27 VFMADD132SD %XMM13,%XMM15,%XMM13 |
(1) 0x2b2c VCOMISD %XMM13,%XMM0 |
(1) 0x2b31 JBE 2b39 |
(1) 0x2b33 MOV %EDX,(%RSI) |
(1) 0x2b35 VMOVAPD %XMM13,%XMM0 |
(1) 0x2b39 VSUBSD 0x18(%RBX),%XMM2,%XMM4 |
(1) 0x2b3e VSUBSD 0x10(%RBX),%XMM3,%XMM1 |
(1) 0x2b43 INC %EDX |
(1) 0x2b45 LEA 0x10(%RBX),%RCX |
(1) 0x2b49 VMULSD %XMM4,%XMM4,%XMM6 |
(1) 0x2b4d VFMADD132SD %XMM1,%XMM6,%XMM1 |
(1) 0x2b52 VCOMISD %XMM1,%XMM0 |
(1) 0x2b56 JBE 2b5e |
(1) 0x2b58 MOV %EDX,(%RSI) |
(1) 0x2b5a VMOVAPD %XMM1,%XMM0 |
(1) 0x2b5e VSUBSD 0x18(%RCX),%XMM2,%XMM8 |
(1) 0x2b63 VSUBSD 0x10(%RCX),%XMM3,%XMM7 |
(1) 0x2b68 LEA 0x1(%RDX),%EAX |
(1) 0x2b6b VMULSD %XMM8,%XMM8,%XMM9 |
(1) 0x2b70 VFMADD132SD %XMM7,%XMM9,%XMM7 |
(1) 0x2b75 VCOMISD %XMM7,%XMM0 |
(1) 0x2b79 JBE 2b81 |
(1) 0x2b7b MOV %EAX,(%RSI) |
(1) 0x2b7d VMOVAPD %XMM7,%XMM0 |
(1) 0x2b81 VSUBSD 0x28(%RCX),%XMM2,%XMM11 |
(1) 0x2b86 VSUBSD 0x20(%RCX),%XMM3,%XMM10 |
(1) 0x2b8b LEA 0x2(%RDX),%R11D |
(1) 0x2b8f VMULSD %XMM11,%XMM11,%XMM12 |
(1) 0x2b94 VFMADD132SD %XMM10,%XMM12,%XMM10 |
(1) 0x2b99 VCOMISD %XMM10,%XMM0 |
(1) 0x2b9e JBE 2ba7 |
(1) 0x2ba0 MOV %R11D,(%RSI) |
(1) 0x2ba3 VMOVAPD %XMM10,%XMM0 |
(1) 0x2ba7 ADD $0x3,%EDX |
(1) 0x2baa LEA 0x30(%RCX),%RBX |
(1) 0x2bae CMP %EDX,%R8D |
(1) 0x2bb1 JNE 2b19 |
0x2bb7 ADD $0x10,%RDI |
0x2bbb ADD $0x4,%RSI |
0x2bbf CMP %RDI,%R9 |
0x2bc2 JNE 2a70 |
/home/fmusial/KMEANS_Benchmarks/kmeans/main.cpp: 72 - 79 |
-------------------------------------------------------------------------------- |
72: double optimal_dist = DBL_MAX; |
73: for (int j = 0; j < k; ++j) { |
74: double dist = |
75: (points[i].x - centroids[j].x) * (points[i].x - centroids[j].x) + |
76: (points[i].y - centroids[j].y) * (points[i].y - centroids[j].y); |
77: if (dist < optimal_dist) { |
78: optimal_dist = dist; |
79: assignment[i] = j; |
| Coverage (%) | Name | Source Location | Module |
|---|
| Coverage (%) | Name | Source Location | Module |
|---|
| Coverage (%) | Name | Source Location | Module |
|---|
| Coverage (%) | Name | Source Location | Module |
|---|
| 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 / |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.47 |
| CQA speedup if FP arith vectorized | 2.30 |
| CQA speedup if fully vectorized | 11.82 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.34 |
| Bottlenecks | micro-operation queue, |
| Function | k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] |
| Source | main.cpp:72-79 |
| Source loop unroll info | NA |
| Source loop unroll confidence level | NA |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 11.75 |
| CQA cycles if no scalar integer | 8.00 |
| CQA cycles if FP arith vectorized | 5.11 |
| CQA cycles if fully vectorized | 0.99 |
| Front-end cycles | 11.75 |
| P0 cycles | 8.75 |
| P1 cycles | 8.75 |
| P2 cycles | 4.00 |
| P3 cycles | 4.00 |
| P4 cycles | 3.00 |
| P5 cycles | 8.75 |
| P6 cycles | 8.75 |
| P7 cycles | 3.00 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | NA |
| FE+BE cycles (UFS) | 12.02 |
| Stall cycles (UFS) | 0.00 |
| Nb insns | 48.00 |
| Nb uops | 47.00 |
| Nb loads | 8.00 |
| Nb stores | 3.00 |
| Nb stack references | 0.00 |
| FLOP/cycle | 1.28 |
| Nb FLOP add-sub | 6.00 |
| Nb FLOP mul | 3.00 |
| Nb FLOP fma | 3.00 |
| Nb FLOP div | 0.00 |
| Nb FLOP rcp | 0.00 |
| Nb FLOP sqrt | 0.00 |
| Nb FLOP rsqrt | 0.00 |
| Bytes/cycle | 6.47 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 64.00 |
| Bytes stored | 12.00 |
| Stride 0 | NA |
| Stride 1 | NA |
| Stride n | NA |
| Stride unknown | NA |
| Stride indirect | NA |
| Vectorization ratio all | 12.12 |
| Vectorization ratio load | 0.00 |
| Vectorization ratio store | 0.00 |
| Vectorization ratio mul | 0.00 |
| Vectorization ratio add_sub | 0.00 |
| Vectorization ratio fma | 0.00 |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 28.57 |
| Vector-efficiency ratio all | 11.74 |
| Vector-efficiency ratio load | 12.50 |
| Vector-efficiency ratio store | 6.25 |
| Vector-efficiency ratio mul | 12.50 |
| Vector-efficiency ratio add_sub | 10.94 |
| Vector-efficiency ratio fma | 12.50 |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 12.95 |
| Metric | Value |
|---|---|
| CQA speedup if no scalar integer | 1.47 |
| CQA speedup if FP arith vectorized | 2.30 |
| CQA speedup if fully vectorized | 11.82 |
| CQA speedup if no inter-iteration dependency | NA |
| CQA speedup if next bottleneck killed | 1.34 |
| Bottlenecks | micro-operation queue, |
| Function | k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] |
| Source | main.cpp:72-79 |
| Source loop unroll info | NA |
| Source loop unroll confidence level | NA |
| Unroll/vectorization loop type | NA |
| Unroll factor | NA |
| CQA cycles | 11.75 |
| CQA cycles if no scalar integer | 8.00 |
| CQA cycles if FP arith vectorized | 5.11 |
| CQA cycles if fully vectorized | 0.99 |
| Front-end cycles | 11.75 |
| P0 cycles | 8.75 |
| P1 cycles | 8.75 |
| P2 cycles | 4.00 |
| P3 cycles | 4.00 |
| P4 cycles | 3.00 |
| P5 cycles | 8.75 |
| P6 cycles | 8.75 |
| P7 cycles | 3.00 |
| DIV/SQRT cycles | 0.00 |
| Inter-iter dependencies cycles | NA |
| FE+BE cycles (UFS) | 12.02 |
| Stall cycles (UFS) | 0.00 |
| Nb insns | 48.00 |
| Nb uops | 47.00 |
| Nb loads | 8.00 |
| Nb stores | 3.00 |
| Nb stack references | 0.00 |
| FLOP/cycle | 1.28 |
| Nb FLOP add-sub | 6.00 |
| Nb FLOP mul | 3.00 |
| Nb FLOP fma | 3.00 |
| Nb FLOP div | 0.00 |
| Nb FLOP rcp | 0.00 |
| Nb FLOP sqrt | 0.00 |
| Nb FLOP rsqrt | 0.00 |
| Bytes/cycle | 6.47 |
| Bytes prefetched | 0.00 |
| Bytes loaded | 64.00 |
| Bytes stored | 12.00 |
| Stride 0 | NA |
| Stride 1 | NA |
| Stride n | NA |
| Stride unknown | NA |
| Stride indirect | NA |
| Vectorization ratio all | 12.12 |
| Vectorization ratio load | 0.00 |
| Vectorization ratio store | 0.00 |
| Vectorization ratio mul | 0.00 |
| Vectorization ratio add_sub | 0.00 |
| Vectorization ratio fma | 0.00 |
| Vectorization ratio div_sqrt | NA |
| Vectorization ratio other | 28.57 |
| Vector-efficiency ratio all | 11.74 |
| Vector-efficiency ratio load | 12.50 |
| Vector-efficiency ratio store | 6.25 |
| Vector-efficiency ratio mul | 12.50 |
| Vector-efficiency ratio add_sub | 10.94 |
| Vector-efficiency ratio fma | 12.50 |
| Vector-efficiency ratio div_sqrt | NA |
| Vector-efficiency ratio other | 12.95 |
| Path / |
| Function | k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] |
| Source file and lines | main.cpp:72-79 |
| Module | kmeans-gcc-O3-funroll |
| nb instructions | 48 |
| nb uops | 47 |
| loop length | 186 |
| used x86 registers | 8 |
| used mmx registers | 0 |
| used xmm registers | 13 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 0 |
| ADD-SUB / MUL ratio | 2.00 |
| micro-operation queue | 11.75 cycles |
| front end | 11.75 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 8.75 | 8.75 | 4.00 | 4.00 | 3.00 | 8.75 | 8.75 | 3.00 |
| cycles | 8.75 | 8.75 | 4.00 | 4.00 | 3.00 | 8.75 | 8.75 | 3.00 |
| Cycles executing div or sqrt instructions | NA |
| FE+BE cycles | 12.02 |
| Stall cycles | 0.00 |
| Front-end | 11.75 |
| Dispatch | 8.75 |
| Overall L1 | 11.75 |
| all | 0% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | 0% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 0% |
| all | 19% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 0% |
| add-sub | 0% |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 57% |
| all | 12% |
| load | 0% |
| store | 0% |
| mul | 0% |
| add-sub | 0% |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 28% |
| all | 6% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | 6% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 6% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 6% |
| all | 14% |
| load | 12% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 12% |
| add-sub | 12% |
| fma | 12% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 19% |
| all | 11% |
| load | 12% |
| store | 6% |
| mul | 12% |
| add-sub | 10% |
| fma | 12% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 12% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MOV %R8D,%EBP | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| VMOVSD (%RDI),%XMM3 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| VMOVSD 0x8(%RDI),%XMM2 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| MOV %R10,%RBX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| XOR %EDX,%EDX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| VMOVAPD %XMM5,%XMM0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | vect (25.0%) |
| AND $0x3,%EBP | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2b19 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x129> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| CMP $0x1,%EBP | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2aea <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0xfa> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| CMP $0x2,%EBP | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2ac5 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0xd5> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| VSUBSD 0x8(%R10),%XMM2,%XMM4 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VSUBSD (%R10),%XMM3,%XMM1 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VMULSD %XMM4,%XMM4,%XMM6 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VFMADD132SD %XMM1,%XMM6,%XMM1 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VCOMISD %XMM1,%XMM5 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | scal (12.5%) |
| JBE 2abc <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0xcc> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOVL $0,(%RSI) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 2 | 1 | scal (6.3%) |
| VMOVAPD %XMM1,%XMM0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | vect (25.0%) |
| MOV $0x1,%EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| LEA 0x10(%R10),%RBX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| VSUBSD 0x8(%RBX),%XMM2,%XMM8 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VSUBSD (%RBX),%XMM3,%XMM7 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VMULSD %XMM8,%XMM8,%XMM9 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VFMADD132SD %XMM7,%XMM9,%XMM7 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VCOMISD %XMM7,%XMM0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | scal (12.5%) |
| JBE 2ae4 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0xf4> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOV %EDX,(%RSI) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| VMOVAPD %XMM7,%XMM0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | vect (25.0%) |
| INC %EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| ADD $0x10,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| VSUBSD 0x8(%RBX),%XMM2,%XMM11 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VSUBSD (%RBX),%XMM3,%XMM10 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VMULSD %XMM11,%XMM11,%XMM12 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VFMADD132SD %XMM10,%XMM12,%XMM10 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VCOMISD %XMM10,%XMM0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | scal (12.5%) |
| JBE 2b0a <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x11a> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOV %EDX,(%RSI) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| VMOVAPD %XMM10,%XMM0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | vect (25.0%) |
| INC %EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| ADD $0x10,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| CMP %EDX,%R8D | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2bb7 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x1c7> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| ADD $0x10,%RDI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| ADD $0x4,%RSI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| CMP %RDI,%R9 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| JNE 2a70 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x80> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| Function | k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] |
| Source file and lines | main.cpp:72-79 |
| Module | kmeans-gcc-O3-funroll |
| nb instructions | 48 |
| nb uops | 47 |
| loop length | 186 |
| used x86 registers | 8 |
| used mmx registers | 0 |
| used xmm registers | 13 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 0 |
| ADD-SUB / MUL ratio | 2.00 |
| micro-operation queue | 11.75 cycles |
| front end | 11.75 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 8.75 | 8.75 | 4.00 | 4.00 | 3.00 | 8.75 | 8.75 | 3.00 |
| cycles | 8.75 | 8.75 | 4.00 | 4.00 | 3.00 | 8.75 | 8.75 | 3.00 |
| Cycles executing div or sqrt instructions | NA |
| FE+BE cycles | 12.02 |
| Stall cycles | 0.00 |
| Front-end | 11.75 |
| Dispatch | 8.75 |
| Overall L1 | 11.75 |
| all | 0% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | 0% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 0% |
| all | 19% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 0% |
| add-sub | 0% |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 57% |
| all | 12% |
| load | 0% |
| store | 0% |
| mul | 0% |
| add-sub | 0% |
| fma | 0% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 28% |
| all | 6% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | 6% |
| mul | NA (no mul vectorizable/vectorized instructions) |
| add-sub | 6% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 6% |
| all | 14% |
| load | 12% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 12% |
| add-sub | 12% |
| fma | 12% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 19% |
| all | 11% |
| load | 12% |
| store | 6% |
| mul | 12% |
| add-sub | 10% |
| fma | 12% |
| div/sqrt | NA (no div/sqrt vectorizable/vectorized instructions) |
| other | 12% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MOV %R8D,%EBP | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| VMOVSD (%RDI),%XMM3 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| VMOVSD 0x8(%RDI),%XMM2 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| MOV %R10,%RBX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| XOR %EDX,%EDX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| VMOVAPD %XMM5,%XMM0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | vect (25.0%) |
| AND $0x3,%EBP | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2b19 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x129> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| CMP $0x1,%EBP | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2aea <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0xfa> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| CMP $0x2,%EBP | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2ac5 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0xd5> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| VSUBSD 0x8(%R10),%XMM2,%XMM4 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VSUBSD (%R10),%XMM3,%XMM1 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VMULSD %XMM4,%XMM4,%XMM6 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VFMADD132SD %XMM1,%XMM6,%XMM1 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VCOMISD %XMM1,%XMM5 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | scal (12.5%) |
| JBE 2abc <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0xcc> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOVL $0,(%RSI) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 2 | 1 | scal (6.3%) |
| VMOVAPD %XMM1,%XMM0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | vect (25.0%) |
| MOV $0x1,%EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| LEA 0x10(%R10),%RBX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| VSUBSD 0x8(%RBX),%XMM2,%XMM8 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VSUBSD (%RBX),%XMM3,%XMM7 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VMULSD %XMM8,%XMM8,%XMM9 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VFMADD132SD %XMM7,%XMM9,%XMM7 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VCOMISD %XMM7,%XMM0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | scal (12.5%) |
| JBE 2ae4 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0xf4> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOV %EDX,(%RSI) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| VMOVAPD %XMM7,%XMM0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | vect (25.0%) |
| INC %EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| ADD $0x10,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| VSUBSD 0x8(%RBX),%XMM2,%XMM11 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VSUBSD (%RBX),%XMM3,%XMM10 | 1 | 0.50 | 0.50 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VMULSD %XMM11,%XMM11,%XMM12 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VFMADD132SD %XMM10,%XMM12,%XMM10 | 1 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.50 | scal (12.5%) |
| VCOMISD %XMM10,%XMM0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | scal (12.5%) |
| JBE 2b0a <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x11a> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOV %EDX,(%RSI) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| VMOVAPD %XMM10,%XMM0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | vect (25.0%) |
| INC %EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| ADD $0x10,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| CMP %EDX,%R8D | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JE 2bb7 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x1c7> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| ADD $0x10,%RDI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| ADD $0x4,%RSI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| CMP %RDI,%R9 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| JNE 2a70 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x80> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| Run run_1_thread | Number processes: 1Number nodes: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 1 |
|---|---|
| Run run_2_threads | Number processes: 1Number nodes: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 2 |
| Run run_4_threads | Number processes: 1Number nodes: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 4 |
| Run run_8_threads | Number processes: 1Number nodes: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 8 |
| Run run_10_threads | Number processes: 1Number nodes: 1Run Command: <executable> input/100000000.in 1000 100000000 50 25MPI Command: Dataset: Run Directory: /home/fmusial/KMEANS_BenchmarksOMP_PROC_BIND: trueOMP_NUM_THREADS: 10 |
| (run_1_thread) Efficiency | (run_1_thread) Potential Speed-Up (%) | (run_2_threads) Efficiency | (run_2_threads) Potential Speed-Up (%) | (run_4_threads) Efficiency | (run_4_threads) Potential Speed-Up (%) | (run_8_threads) Efficiency | (run_8_threads) Potential Speed-Up (%) | (run_10_threads) Efficiency | (run_10_threads) Potential Speed-Up (%) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 0 | 0.94 | 0.37 | 0.73 | 1.69 | 0.61 | 2.32 | 0.57 | 2.62 |
| Run | Number of threads | Efficiency (ideal is 1) | Speedup | Ideal Speedup | Time (s) | Coverage (%) |
|---|---|---|---|---|---|---|
| run_1_thread | 1 | 1 | 1 | 1 | 6.1699995994568 | 5.7814841270447 |
| run_2_threads | 2 | 0.94 | 1.87 | 2 | 3.1949996948242 | 5.6794753074646 |
| run_4_threads | 4 | 0.73 | 2.92 | 4 | 1.8049998283386 | 6.2284936904907 |
| run_8_threads | 8 | 0.61 | 4.92 | 8 | 0.9549999833107 | 6.0151338577271 |
| run_10_threads | 10 | 0.57 | 5.65 | 10 | 0.7700001001358 | 6.0202665328979 |
