| Function: k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] | Module: kmeans-gcc-O3-all | Source: main.cpp:58-67 | Coverage (incl. loops): 93.30% | (excl. loops): 0.00% |
|---|
| Function: k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0] | Module: kmeans-gcc-O3-all | Source: main.cpp:58-67 | Coverage (incl. loops): 93.30% | (excl. loops): 0.00% |
|---|
/home/fmusial/KMEANS_Benchmarks/kmeans/main.cpp: 58 - 67 |
-------------------------------------------------------------------------------- |
58: #pragma omp parallel for |
59: for (int i = 0; i < n; ++i) { |
60: double optimal_dist = DBL_MAX; |
61: for (int j = 0; j < k; ++j) { |
62: double dist = |
63: (points[i].x - centroids[j].x) * (points[i].x - centroids[j].x) + |
64: (points[i].y - centroids[j].y) * (points[i].y - centroids[j].y); |
65: if (dist < optimal_dist) { |
66: optimal_dist = dist; |
67: assignment[i] = j; |
0x2a00 PUSH %RBP |
0x2a01 MOV %RSP,%RBP |
0x2a04 PUSH %R12 |
0x2a06 MOV %RDI,%R12 |
0x2a09 PUSH %RBX |
0x2a0a CALL 2260 <omp_get_num_threads@plt> |
0x2a0f MOV %EAX,%EBX |
0x2a11 CALL 21d0 <omp_get_thread_num@plt> |
0x2a16 MOV %EAX,%ECX |
0x2a18 MOV 0x18(%R12),%EAX |
0x2a1d CLTD |
0x2a1e IDIV %EBX |
0x2a20 CMP %EDX,%ECX |
0x2a22 JL 2be1 |
0x2a28 IMUL %EAX,%ECX |
0x2a2b ADD %ECX,%EDX |
0x2a2d LEA (%RAX,%RDX,1),%ESI |
0x2a30 CMP %ESI,%EDX |
0x2a32 JGE 2bdc |
0x2a38 MOV 0x1c(%R12),%R8D |
0x2a3d MOV 0x10(%R12),%R11 |
0x2a42 MOV 0x8(%R12),%R9 |
0x2a47 MOV (%R12),%R10 |
0x2a4b TEST %R8D,%R8D |
0x2a4e JLE 2bdc |
0x2a54 MOVSXD %EDX,%R12 |
0x2a57 MOV %EAX,%EBX |
0x2a59 VMOVSD 0x16e7(%RIP),%XMM5 |
0x2a61 MOV %R12,%RDI |
0x2a64 ADD %R12,%RBX |
0x2a67 LEA (%R11,%R12,4),%RSI |
0x2a6b SAL $0x4,%RDI |
0x2a6f SAL $0x4,%RBX |
0x2a73 ADD %R10,%RDI |
0x2a76 ADD %RBX,%R10 |
0x2a79 NOPL (%RAX) |
(2) 0x2a80 MOV %R8D,%ECX |
(2) 0x2a83 VMOVSD (%RDI),%XMM3 |
(2) 0x2a87 VMOVSD 0x8(%RDI),%XMM2 |
(2) 0x2a8c MOV %R9,%RBX |
(2) 0x2a8f XOR %EDX,%EDX |
(2) 0x2a91 VMOVAPD %XMM5,%XMM0 |
(2) 0x2a95 AND $0x3,%ECX |
(2) 0x2a98 JE 2b29 |
(2) 0x2a9e CMP $0x1,%ECX |
(2) 0x2aa1 JE 2afa |
(2) 0x2aa3 CMP $0x2,%ECX |
(2) 0x2aa6 JE 2ad5 |
(2) 0x2aa8 VSUBSD 0x8(%R9),%XMM2,%XMM4 |
(2) 0x2aae VSUBSD (%R9),%XMM3,%XMM1 |
(2) 0x2ab3 VMULSD %XMM4,%XMM4,%XMM6 |
(2) 0x2ab7 VFMADD132SD %XMM1,%XMM6,%XMM1 |
(2) 0x2abc VCOMISD %XMM1,%XMM5 |
(2) 0x2ac0 JBE 2acc |
(2) 0x2ac2 MOVL $0,(%RSI) |
(2) 0x2ac8 VMOVAPD %XMM1,%XMM0 |
(2) 0x2acc MOV $0x1,%EDX |
(2) 0x2ad1 LEA 0x10(%R9),%RBX |
(2) 0x2ad5 VSUBSD 0x8(%RBX),%XMM2,%XMM8 |
(2) 0x2ada VSUBSD (%RBX),%XMM3,%XMM7 |
(2) 0x2ade VMULSD %XMM8,%XMM8,%XMM9 |
(2) 0x2ae3 VFMADD132SD %XMM7,%XMM9,%XMM7 |
(2) 0x2ae8 VCOMISD %XMM7,%XMM0 |
(2) 0x2aec JBE 2af4 |
(2) 0x2aee MOV %EDX,(%RSI) |
(2) 0x2af0 VMOVAPD %XMM7,%XMM0 |
(2) 0x2af4 INC %EDX |
(2) 0x2af6 ADD $0x10,%RBX |
(2) 0x2afa VSUBSD 0x8(%RBX),%XMM2,%XMM11 |
(2) 0x2aff VSUBSD (%RBX),%XMM3,%XMM10 |
(2) 0x2b03 VMULSD %XMM11,%XMM11,%XMM12 |
(2) 0x2b08 VFMADD132SD %XMM10,%XMM12,%XMM10 |
(2) 0x2b0d VCOMISD %XMM10,%XMM0 |
(2) 0x2b12 JBE 2b1a |
(2) 0x2b14 MOV %EDX,(%RSI) |
(2) 0x2b16 VMOVAPD %XMM10,%XMM0 |
(2) 0x2b1a INC %EDX |
(2) 0x2b1c ADD $0x10,%RBX |
(2) 0x2b20 CMP %EDX,%R8D |
(2) 0x2b23 JE 2bcb |
(1) 0x2b29 VSUBSD 0x8(%RBX),%XMM2,%XMM14 |
(1) 0x2b2e VSUBSD (%RBX),%XMM3,%XMM13 |
(1) 0x2b32 VMULSD %XMM14,%XMM14,%XMM15 |
(1) 0x2b37 VFMADD132SD %XMM13,%XMM15,%XMM13 |
(1) 0x2b3c VCOMISD %XMM13,%XMM0 |
(1) 0x2b41 JBE 2b49 |
(1) 0x2b43 MOV %EDX,(%RSI) |
(1) 0x2b45 VMOVAPD %XMM13,%XMM0 |
(1) 0x2b49 VSUBSD 0x18(%RBX),%XMM2,%XMM4 |
(1) 0x2b4e VSUBSD 0x10(%RBX),%XMM3,%XMM1 |
(1) 0x2b53 INC %EDX |
(1) 0x2b55 LEA 0x10(%RBX),%R11 |
(1) 0x2b59 VMULSD %XMM4,%XMM4,%XMM6 |
(1) 0x2b5d VFMADD132SD %XMM1,%XMM6,%XMM1 |
(1) 0x2b62 VCOMISD %XMM1,%XMM0 |
(1) 0x2b66 JBE 2b6e |
(1) 0x2b68 MOV %EDX,(%RSI) |
(1) 0x2b6a VMOVAPD %XMM1,%XMM0 |
(1) 0x2b6e VSUBSD 0x18(%R11),%XMM2,%XMM8 |
(1) 0x2b74 VSUBSD 0x10(%R11),%XMM3,%XMM7 |
(1) 0x2b7a LEA 0x1(%RDX),%EAX |
(1) 0x2b7d VMULSD %XMM8,%XMM8,%XMM9 |
(1) 0x2b82 VFMADD132SD %XMM7,%XMM9,%XMM7 |
(1) 0x2b87 VCOMISD %XMM7,%XMM0 |
(1) 0x2b8b JBE 2b93 |
(1) 0x2b8d MOV %EAX,(%RSI) |
(1) 0x2b8f VMOVAPD %XMM7,%XMM0 |
(1) 0x2b93 VSUBSD 0x28(%R11),%XMM2,%XMM11 |
(1) 0x2b99 VSUBSD 0x20(%R11),%XMM3,%XMM10 |
(1) 0x2b9f LEA 0x2(%RDX),%R12D |
(1) 0x2ba3 VMULSD %XMM11,%XMM11,%XMM12 |
(1) 0x2ba8 VFMADD132SD %XMM10,%XMM12,%XMM10 |
(1) 0x2bad VCOMISD %XMM10,%XMM0 |
(1) 0x2bb2 JBE 2bbb |
(1) 0x2bb4 MOV %R12D,(%RSI) |
(1) 0x2bb7 VMOVAPD %XMM10,%XMM0 |
(1) 0x2bbb ADD $0x3,%EDX |
(1) 0x2bbe LEA 0x30(%R11),%RBX |
(1) 0x2bc2 CMP %EDX,%R8D |
(1) 0x2bc5 JNE 2b29 |
(2) 0x2bcb ADD $0x10,%RDI |
(2) 0x2bcf ADD $0x4,%RSI |
(2) 0x2bd3 CMP %RDI,%R10 |
(2) 0x2bd6 JNE 2a80 |
0x2bdc POP %RBX |
0x2bdd POP %R12 |
0x2bdf POP %RBP |
0x2be0 RET |
0x2be1 INC %EAX |
0x2be3 XOR %EDX,%EDX |
0x2be5 JMP 2a28 |
0x2bea NOPW (%RAX,%RAX,1) |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►98.60+ | GOMP_parallel | parallel.c:140 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-O3-all |
| ○ | main | main.cpp:19 | kmeans-gcc-O3-all |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-O3-all |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►48.37+ | GOMP_parallel | parallel.c:140 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-O3-all |
| ○ | main | main.cpp:19 | kmeans-gcc-O3-all |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-O3-all |
| ►47.03+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | pthread_condattr_setpshared | libc.so.6 | |
| ○ | __clone | libc.so.6 |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►71.28+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | pthread_condattr_setpshared | libc.so.6 | |
| ○ | __clone | libc.so.6 | |
| ►23.83+ | GOMP_parallel | parallel.c:140 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-O3-all |
| ○ | main | main.cpp:19 | kmeans-gcc-O3-all |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-O3-all |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►87.22+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | pthread_condattr_setpshared | libc.so.6 | |
| ○ | __clone | libc.so.6 | |
| ►12.50+ | GOMP_parallel | parallel.c:140 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-O3-all |
| ○ | main | main.cpp:19 | kmeans-gcc-O3-all |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-O3-all |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►93.22+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | pthread_condattr_setpshared | libc.so.6 | |
| ○ | __clone | libc.so.6 | |
| ►6.22+ | GOMP_parallel | parallel.c:140 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-O3-all |
| ○ | main | main.cpp:19 | kmeans-gcc-O3-all |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-O3-all |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►95.92+ | gomp_thread_start | team.c:130 | libgomp.so.1.0.0 |
| ○ | pthread_condattr_setpshared | libc.so.6 | |
| ○ | __clone | libc.so.6 | |
| ►3.85+ | GOMP_parallel | parallel.c:140 | libgomp.so.1.0.0 |
| ○ | k_means(int, point_t*, point_t[...] | main.cpp:73 | kmeans-gcc-O3-all |
| ○ | main | main.cpp:19 | kmeans-gcc-O3-all |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-O3-all |
| 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 / |
The code analyzed by CQA in that panel excludes loops and represents 0.00% of application time for run run_1_thread
| Source file and lines | main.cpp:58-67 |
| Module | kmeans-gcc-O3-all |
| nb instructions | 44 |
| nb uops | 55 |
| loop length | 148 |
| used x86 registers | 13 |
| used mmx registers | 0 |
| used xmm registers | 1 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 0 |
| micro-operation queue | 13.75 cycles |
| front end | 13.75 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 8.00 | 8.00 | 5.17 | 4.83 | 5.00 | 8.00 | 8.00 | 5.00 |
| cycles | 8.00 | 8.00 | 5.17 | 4.83 | 5.00 | 8.00 | 8.00 | 5.00 |
| Cycles executing div or sqrt instructions | 6.00 |
| FE+BE cycles | 12.73 |
| Stall cycles | 0.68 |
| ROB full (events) | 0.53 |
| RS full (events) | 0.65 |
| Front-end | 13.75 |
| Dispatch | 8.00 |
| DIV/SQRT | 6.00 |
| Overall L1 | 13.75 |
| all | 0% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 0% |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 0% |
| all | 0% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| 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 | 0% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 0% |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | 0% |
| other | 0% |
| all | 9% |
| load | 10% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 6% |
| add-sub | 12% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 8% |
| all | 12% |
| load | 12% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| 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 | 9% |
| load | 10% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 6% |
| add-sub | 12% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | 6% |
| other | 8% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PUSH %RBP | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| MOV %RSP,%RBP | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (12.5%) |
| PUSH %R12 | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| MOV %RDI,%R12 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| PUSH %RBX | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| CALL 2260 <omp_get_num_threads@plt> | 2 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 1 | 0.33 | 0 | 1 | N/A |
| MOV %EAX,%EBX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| CALL 21d0 <omp_get_thread_num@plt> | 2 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 1 | 0.33 | 0 | 1 | N/A |
| MOV %EAX,%ECX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| MOV 0x18(%R12),%EAX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| CLTD | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (6.3%) |
| IDIV %EBX | 10 | 2.50 | 2.50 | 0 | 0 | 0 | 2.50 | 2.50 | 0 | 26 | 6 | scal (6.3%) |
| CMP %EDX,%ECX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JL 2be1 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x1e1> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| IMUL %EAX,%ECX | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | scal (6.3%) |
| ADD %ECX,%EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| LEA (%RAX,%RDX,1),%ESI | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| CMP %ESI,%EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JGE 2bdc <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x1dc> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOV 0x1c(%R12),%R8D | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| MOV 0x10(%R12),%R11 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV 0x8(%R12),%R9 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| MOV (%R12),%R10 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| TEST %R8D,%R8D | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JLE 2bdc <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x1dc> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOVSXD %EDX,%R12 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| MOV %EAX,%EBX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| VMOVSD 0x16e7(%RIP),%XMM5 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| MOV %R12,%RDI | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (12.5%) |
| ADD %R12,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| LEA (%R11,%R12,4),%RSI | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| SAL $0x4,%RDI | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (12.5%) |
| SAL $0x4,%RBX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (12.5%) |
| ADD %R10,%RDI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| ADD %RBX,%R10 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| POP %RBX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 2 | 0.50 | N/A |
| POP %R12 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 2 | 0.50 | N/A |
| POP %RBP | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 2 | 0.50 | N/A |
| RET | 1 | 0 | 0 | 0.33 | 0.33 | 0 | 0 | 1 | 0.33 | 0 | 1 | N/A |
| INC %EAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| XOR %EDX,%EDX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| JMP 2a28 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x28> | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1-2 | N/A |
| NOPW (%RAX,%RAX,1) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
The code analyzed by CQA in that panel excludes loops and represents 0.00% of application time for run run_1_thread
| Source file and lines | main.cpp:58-67 |
| Module | kmeans-gcc-O3-all |
| nb instructions | 44 |
| nb uops | 55 |
| loop length | 148 |
| used x86 registers | 13 |
| used mmx registers | 0 |
| used xmm registers | 1 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 0 |
| micro-operation queue | 13.75 cycles |
| front end | 13.75 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 8.00 | 8.00 | 5.17 | 4.83 | 5.00 | 8.00 | 8.00 | 5.00 |
| cycles | 8.00 | 8.00 | 5.17 | 4.83 | 5.00 | 8.00 | 8.00 | 5.00 |
| Cycles executing div or sqrt instructions | 6.00 |
| FE+BE cycles | 12.73 |
| Stall cycles | 0.68 |
| ROB full (events) | 0.53 |
| RS full (events) | 0.65 |
| Front-end | 13.75 |
| Dispatch | 8.00 |
| DIV/SQRT | 6.00 |
| Overall L1 | 13.75 |
| all | 0% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 0% |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 0% |
| all | 0% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| 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 | 0% |
| load | 0% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 0% |
| add-sub | 0% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | 0% |
| other | 0% |
| all | 9% |
| load | 10% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 6% |
| add-sub | 12% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| other | 8% |
| all | 12% |
| load | 12% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | NA (no mul vectorizable/vectorized instructions) |
| 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 | 9% |
| load | 10% |
| store | NA (no store vectorizable/vectorized instructions) |
| mul | 6% |
| add-sub | 12% |
| fma | NA (no fma vectorizable/vectorized instructions) |
| div/sqrt | 6% |
| other | 8% |
| Instruction | Nb FU | P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | Latency | Recip. throughput | Vectorization |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PUSH %RBP | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| MOV %RSP,%RBP | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (12.5%) |
| PUSH %R12 | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| MOV %RDI,%R12 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| PUSH %RBX | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| CALL 2260 <omp_get_num_threads@plt> | 2 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 1 | 0.33 | 0 | 1 | N/A |
| MOV %EAX,%EBX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| CALL 21d0 <omp_get_thread_num@plt> | 2 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 1 | 0.33 | 0 | 1 | N/A |
| MOV %EAX,%ECX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| MOV 0x18(%R12),%EAX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| CLTD | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (6.3%) |
| IDIV %EBX | 10 | 2.50 | 2.50 | 0 | 0 | 0 | 2.50 | 2.50 | 0 | 26 | 6 | scal (6.3%) |
| CMP %EDX,%ECX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JL 2be1 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x1e1> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| IMUL %EAX,%ECX | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | scal (6.3%) |
| ADD %ECX,%EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| LEA (%RAX,%RDX,1),%ESI | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| CMP %ESI,%EDX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JGE 2bdc <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x1dc> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOV 0x1c(%R12),%R8D | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (6.3%) |
| MOV 0x10(%R12),%R11 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV 0x8(%R12),%R9 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| MOV (%R12),%R10 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| TEST %R8D,%R8D | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JLE 2bdc <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x1dc> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| MOVSXD %EDX,%R12 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| MOV %EAX,%EBX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| VMOVSD 0x16e7(%RIP),%XMM5 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | scal (12.5%) |
| MOV %R12,%RDI | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (12.5%) |
| ADD %R12,%RBX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| LEA (%R11,%R12,4),%RSI | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| SAL $0x4,%RDI | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (12.5%) |
| SAL $0x4,%RBX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (12.5%) |
| ADD %R10,%RDI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| ADD %RBX,%R10 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| POP %RBX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 2 | 0.50 | N/A |
| POP %R12 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 2 | 0.50 | N/A |
| POP %RBP | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 2 | 0.50 | N/A |
| RET | 1 | 0 | 0 | 0.33 | 0.33 | 0 | 0 | 1 | 0.33 | 0 | 1 | N/A |
| INC %EAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| XOR %EDX,%EDX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| JMP 2a28 <_Z7k_meansiP7point_tS0_PiS0_ii._omp_fn.0+0x28> | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1-2 | N/A |
| NOPW (%RAX,%RAX,1) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | 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: closeOMP_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: closeOMP_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: closeOMP_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: closeOMP_NUM_THREADS: 8 |
| Run run_16_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: closeOMP_NUM_THREADS: 16 |
| Run run_26_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: closeOMP_NUM_THREADS: 26 |
| (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_16_threads) Efficiency | (run_16_threads) Potential Speed-Up (%) | (run_26_threads) Efficiency | (run_26_threads) Potential Speed-Up (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 0 | 0.94 | 5.49 | 0.84 | 14.62 | 0.7 | 27.57 | 0.52 | 42.22 | 0.41 | 51.13 |
| Run | Number of threads | Efficiency (ideal is 1) | Speedup | Ideal Speedup | Time (s) | Coverage (%) |
|---|---|---|---|---|---|---|
| run_1_thread | 1 | 1 | 1 | 1 | 151.74998474121 | 93.304229736328 |
| run_2_threads | 2 | 0.94 | 1.88 | 2 | 75.854995727539 | 92.972946166992 |
| run_4_threads | 4 | 0.84 | 3.37 | 4 | 37.949996948242 | 92.336708068848 |
| run_8_threads | 8 | 0.7 | 5.58 | 8 | 18.979999542236 | 91.123062133789 |
| run_16_threads | 16 | 0.52 | 8.39 | 16 | 9.5049962997437 | 88.773239135742 |
| run_26_threads | 26 | 0.41 | 10.54 | 26 | 5.8550004959106 | 85.983695983887 |
| Name | Coverage (%) | Time (s) |
|---|---|---|
| ▼k_means(int, point_t*, point_t*, int*, point_t*, int, int) [clone ._omp_fn.0]– | 93.30 | 151.75 |
| ▼Loop 2 - main.cpp:60-67 - kmeans-gcc-O3-all– | 5.97 | 9.71 |
| ○Loop 1 - main.cpp:61-67 - kmeans-gcc-O3-all | 87.33 | 142.03 |
