| Function: k_means(int, point_t*, point_t*, int*, point_t*, int, int) | Module: kmeans-gcc-Ofast | Source: main.cpp:55-96 [...] | Coverage (incl. loops): 5.35% | (excl. loops): 0.00% |
|---|
| Function: k_means(int, point_t*, point_t*, int*, point_t*, int, int) | Module: kmeans-gcc-Ofast | Source: main.cpp:55-96 [...] | Coverage (incl. loops): 5.35% | (excl. loops): 0.00% |
|---|
/home/fmusial/KMEANS_Benchmarks/kmeans/main.cpp: 55 - 96 |
-------------------------------------------------------------------------------- |
55: void k_means(int niters, point_t *points, point_t *centroids, int *assignment, point_t* memory, int n, int k) { |
56: for (int iter = 0; iter < niters; ++iter) { |
57: // determine nearest centroids |
58: #pragma omp parallel for |
[...] |
73: int count[k]; |
74: double sum_x[k]; |
75: double sum_y[k]; |
76: for (int j = 0; j < k; ++j) { |
77: count[j] = 0; |
78: sum_x[j] = 0.; |
79: sum_y[j] = 0.; |
80: } |
81: for (int i = 0; i < n; ++i) { |
82: count[assignment[i]]++; |
83: sum_x[assignment[i]] += points[i].x; |
84: sum_y[assignment[i]] += points[i].y; |
85: } |
86: for (int j = 0; j < k; ++j) { |
87: if (count[j] != 0) { |
88: centroids[j].x = sum_x[j] / count[j]; |
89: centroids[j].y = sum_y[j] / count[j]; |
90: } |
91: // save centroids to memory |
92: memory[(iter + 1) * k + j].x = centroids[j].x; |
93: memory[(iter + 1) * k + j].y = centroids[j].y; |
94: } |
95: } |
96: } |
0x2b60 PUSH %RBP |
0x2b61 VMOVQ %RSI,%XMM1 |
0x2b66 VMOVD %R9D,%XMM4 |
0x2b6b VPINSRQ $0x1,%RDX,%XMM1,%XMM2 |
0x2b71 MOV %RSP,%RBP |
0x2b74 PUSH %R15 |
0x2b76 PUSH %R14 |
0x2b78 PUSH %R13 |
0x2b7a PUSH %R12 |
0x2b7c PUSH %RBX |
0x2b7d SUB $0xb8,%RSP |
0x2b84 MOV %RDX,-0xc0(%RBP) |
0x2b8b MOV %R8,-0xc8(%RBP) |
0x2b92 MOV %FS:0x28,%R8 |
0x2b9b MOV %R8,-0x38(%RBP) |
0x2b9f MOV 0x10(%RBP),%R8D |
0x2ba3 VPINSRD $0x1,%R8D,%XMM4,%XMM3 |
0x2ba9 TEST %EDI,%EDI |
0x2bab JLE 2e01 |
0x2bb1 LEA -0x1(%R8),%EAX |
0x2bb5 MOV %EDI,%R11D |
0x2bb8 MOVSXD %R8D,%R14 |
0x2bbb MOV %R8D,-0x68(%RBP) |
0x2bbf INC %RAX |
0x2bc2 LEA 0xf(,%R14,4),%RDX |
0x2bca MOVL $0,-0x64(%RBP) |
0x2bd1 MOV %R9D,%R15D |
0x2bd4 LEA (,%RAX,4),%RDI |
0x2bdc SAL $0x3,%RAX |
0x2be0 SHR $0x4,%RDX |
0x2be4 MOV %R11D,-0xb4(%RBP) |
0x2beb MOV %RAX,-0x78(%RBP) |
0x2bef LEA -0x60(%RBP),%RAX |
0x2bf3 SAL $0x4,%RDX |
0x2bf7 MOV %RCX,%R12 |
0x2bfa MOV %RAX,-0x98(%RBP) |
0x2c01 LEA 0xf(,%R14,8),%RAX |
0x2c09 SHR $0x4,%RAX |
0x2c0d MOV %RDI,-0xd0(%RBP) |
0x2c14 SAL $0x4,%RAX |
0x2c18 MOV %RDX,-0x88(%RBP) |
0x2c1f MOV %RAX,-0x90(%RBP) |
0x2c26 MOV %RSI,-0xd8(%RBP) |
0x2c2d VMOVDQA %XMM2,-0xb0(%RBP) |
0x2c35 VMOVQ %XMM3,-0xa0(%RBP) |
0x2c3d NOPL (%RAX) |
(5) 0x2c40 MOV -0xa0(%RBP),%RAX |
(5) 0x2c47 VMOVDQA -0xb0(%RBP),%XMM6 |
(5) 0x2c4f XOR %EDX,%EDX |
(5) 0x2c51 XOR %ECX,%ECX |
(5) 0x2c53 MOV -0x98(%RBP),%RSI |
(5) 0x2c5a LEA -0x3a1(%RIP),%RDI |
(5) 0x2c61 MOV %RSP,-0x70(%RBP) |
(5) 0x2c65 MOV %RAX,-0x48(%RBP) |
(5) 0x2c69 MOV %R12,-0x50(%RBP) |
(5) 0x2c6d VMOVDQA %XMM6,-0x60(%RBP) |
(5) 0x2c72 CALL 21b0 <GOMP_parallel@plt> |
(5) 0x2c77 MOV -0x88(%RBP),%RAX |
(5) 0x2c7e MOV 0x10(%RBP),%EDX |
(5) 0x2c81 SUB %RAX,%RSP |
(5) 0x2c84 MOV -0x90(%RBP),%RAX |
(5) 0x2c8b MOV %RSP,%RBX |
(5) 0x2c8e SUB %RAX,%RSP |
(5) 0x2c91 MOV %RSP,%R13 |
(5) 0x2c94 SUB %RAX,%RSP |
(5) 0x2c97 INCL -0x64(%RBP) |
(5) 0x2c9a MOV %RSP,%R11 |
(5) 0x2c9d TEST %EDX,%EDX |
(5) 0x2c9f JLE 2dd8 |
(5) 0x2ca5 MOV -0xd0(%RBP),%RDX |
(5) 0x2cac XOR %ESI,%ESI |
(5) 0x2cae MOV %RBX,%RDI |
(5) 0x2cb1 MOV %RSP,-0x80(%RBP) |
(5) 0x2cb5 CALL 20c0 <memset@plt> |
(5) 0x2cba MOV -0x78(%RBP),%RDX |
(5) 0x2cbe XOR %ESI,%ESI |
(5) 0x2cc0 MOV %R13,%RDI |
(5) 0x2cc3 CALL 20c0 <memset@plt> |
(5) 0x2cc8 MOV -0x78(%RBP),%RDX |
(5) 0x2ccc MOV -0x80(%RBP),%RDI |
(5) 0x2cd0 XOR %ESI,%ESI |
(5) 0x2cd2 CALL 20c0 <memset@plt> |
(5) 0x2cd7 MOV %RAX,%R11 |
(5) 0x2cda TEST %R15D,%R15D |
(5) 0x2cdd JLE 2d42 |
(5) 0x2cdf MOV -0xd8(%RBP),%RSI |
(5) 0x2ce6 XOR %EDX,%EDX |
(5) 0x2ce8 NOPW %CS:(%RAX,%RAX,1) |
(5) 0x2cf3 NOPW %CS:(%RAX,%RAX,1) |
(5) 0x2cfe XCHG %AX,%AX |
(4) 0x2d00 MOVSXD (%R12,%RDX,4),%RAX |
(4) 0x2d04 INC %RDX |
(4) 0x2d07 ADD $0x10,%RSI |
(4) 0x2d0b VMOVSD (%R13,%RAX,8),%XMM0 |
(4) 0x2d12 INCL (%RBX,%RAX,4) |
(4) 0x2d15 VADDSD -0x10(%RSI),%XMM0,%XMM0 |
(4) 0x2d1a VMOVSD %XMM0,(%R13,%RAX,8) |
(4) 0x2d21 VMOVSD (%R11,%RAX,8),%XMM0 |
(4) 0x2d27 VADDSD -0x8(%RSI),%XMM0,%XMM0 |
(4) 0x2d2c VMOVSD %XMM0,(%R11,%RAX,8) |
(4) 0x2d32 CMP %EDX,%R15D |
(4) 0x2d35 JG 2d00 |
(5) 0x2d37 MOV 0x10(%RBP),%EAX |
(5) 0x2d3a TEST %EAX,%EAX |
(5) 0x2d3c JLE 2de8 |
(5) 0x2d42 MOVSXD -0x68(%RBP),%RDX |
(5) 0x2d46 MOV -0xc8(%RBP),%RAX |
(5) 0x2d4d SAL $0x4,%RDX |
(5) 0x2d51 ADD %RAX,%RDX |
(5) 0x2d54 MOV -0xc0(%RBP),%RAX |
(5) 0x2d5b LEA 0x8(%RAX),%RSI |
(5) 0x2d5f XOR %EAX,%EAX |
(5) 0x2d61 JMP 2da2 |
0x2d63 NOPW %CS:(%RAX,%RAX,1) |
0x2d6e NOPW %CS:(%RAX,%RAX,1) |
0x2d79 NOPL (%RAX) |
(6) 0x2d80 VMOVSD -0x8(%RSI),%XMM1 |
(6) 0x2d85 VMOVSD (%RSI),%XMM0 |
(6) 0x2d89 INC %RAX |
(6) 0x2d8c VMOVSD %XMM1,(%RDX) |
(6) 0x2d90 ADD $0x10,%RSI |
(6) 0x2d94 ADD $0x10,%RDX |
(6) 0x2d98 VMOVSD %XMM0,-0x8(%RDX) |
(6) 0x2d9d CMP %RAX,%R14 |
(6) 0x2da0 JE 2de8 |
(6) 0x2da2 MOV (%RBX,%RAX,4),%ECX |
(6) 0x2da5 TEST %ECX,%ECX |
(6) 0x2da7 JE 2d80 |
(6) 0x2da9 VXORPD %XMM5,%XMM5,%XMM5 |
(6) 0x2dad VMOVSD (%R13,%RAX,8),%XMM1 |
(6) 0x2db4 VCVTSI2SD %ECX,%XMM5,%XMM2 |
(6) 0x2db8 VDIVSD %XMM2,%XMM1,%XMM1 |
(6) 0x2dbc VMOVSD %XMM1,-0x8(%RSI) |
(6) 0x2dc1 VMOVSD (%R11,%RAX,8),%XMM0 |
(6) 0x2dc7 VDIVSD %XMM2,%XMM0,%XMM0 |
(6) 0x2dcb VMOVSD %XMM0,(%RSI) |
(6) 0x2dcf JMP 2d89 |
0x2dd1 NOPL (%RAX) |
(5) 0x2dd8 TEST %R15D,%R15D |
(5) 0x2ddb JG 2cdf |
(5) 0x2de1 NOPL (%RAX) |
(5) 0x2de8 MOV 0x10(%RBP),%EDI |
(5) 0x2deb MOV -0x70(%RBP),%RSP |
(5) 0x2def ADD %EDI,-0x68(%RBP) |
(5) 0x2df2 MOV -0x64(%RBP),%EDI |
(5) 0x2df5 CMP %EDI,-0xb4(%RBP) |
(5) 0x2dfb JNE 2c40 |
0x2e01 MOV -0x38(%RBP),%RAX |
0x2e05 SUB %FS:0x28,%RAX |
0x2e0e JNE 2e1f |
0x2e10 LEA -0x28(%RBP),%RSP |
0x2e14 POP %RBX |
0x2e15 POP %R12 |
0x2e17 POP %R13 |
0x2e19 POP %R14 |
0x2e1b POP %R15 |
0x2e1d POP %RBP |
0x2e1e RET |
0x2e1f CALL 2130 <__stack_chk_fail@plt> |
0x2e24 NOPW %CS:(%RAX,%RAX,1) |
0x2e2f NOP |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | main | main.cpp:20 | kmeans-gcc-Ofast |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-Ofast |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | main | main.cpp:20 | kmeans-gcc-Ofast |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-Ofast |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | main | main.cpp:20 | kmeans-gcc-Ofast |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-Ofast |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | main | main.cpp:20 | kmeans-gcc-Ofast |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-Ofast |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | main | main.cpp:20 | kmeans-gcc-Ofast |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-Ofast |
| Coverage (%) | Name | Source Location | Module |
|---|---|---|---|
| ►100.00+ | main | main.cpp:20 | kmeans-gcc-Ofast |
| ○ | __libc_init_first | libc.so.6 | |
| ○ | __libc_start_main | libc.so.6 | |
| ○ | _start | basic_string.h:809 | kmeans-gcc-Ofast |
| 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:55-96 |
| Module | kmeans-gcc-Ofast |
| nb instructions | 64 |
| nb uops | 67 |
| loop length | 307 |
| used x86 registers | 15 |
| used mmx registers | 0 |
| used xmm registers | 4 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 17 |
| micro-operation queue | 16.75 cycles |
| front end | 16.75 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 6.50 | 6.50 | 10.67 | 10.67 | 21.00 | 6.50 | 6.50 | 10.67 |
| cycles | 6.50 | 6.50 | 10.67 | 10.67 | 21.00 | 6.50 | 6.50 | 10.67 |
| Cycles executing div or sqrt instructions | NA |
| FE+BE cycles | 20.11 |
| Stall cycles | 3.17 |
| SB full (events) | 4.54 |
| Front-end | 16.75 |
| Dispatch | 21.00 |
| Overall L1 | 21.00 |
| all | 4% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | 7% |
| 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% |
| all | 11% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | 12% |
| 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% |
| 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 |
| VMOVQ %RSI,%XMM1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | scal (12.5%) |
| VMOVD %R9D,%XMM4 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | scal (6.3%) |
| VPINSRQ $0x1,%RDX,%XMM1,%XMM2 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 3 | 2 | scal (12.5%) |
| MOV %RSP,%RBP | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| PUSH %R15 | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| PUSH %R14 | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| PUSH %R13 | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| PUSH %R12 | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| PUSH %RBX | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| SUB $0xb8,%RSP | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| MOV %RDX,-0xc0(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV %R8,-0xc8(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV %FS:0x28,%R8 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV %R8,-0x38(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV 0x10(%RBP),%R8D | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| VPINSRD $0x1,%R8D,%XMM4,%XMM3 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 3 | 2 | scal (6.3%) |
| TEST %EDI,%EDI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JLE 2e01 <_Z7k_meansiP7point_tS0_PiS0_ii+0x2a1> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| LEA -0x1(%R8),%EAX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| MOV %EDI,%R11D | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| MOVSXD %R8D,%R14 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| MOV %R8D,-0x68(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| INC %RAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| LEA 0xf(,%R14,4),%RDX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| MOVL $0,-0x64(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 2 | 1 | scal (6.3%) |
| MOV %R9D,%R15D | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| LEA (,%RAX,4),%RDI | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| SAL $0x3,%RAX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | N/A |
| SHR $0x4,%RDX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (12.5%) |
| MOV %R11D,-0xb4(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| MOV %RAX,-0x78(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| LEA -0x60(%RBP),%RAX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| SAL $0x4,%RDX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (12.5%) |
| MOV %RCX,%R12 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (12.5%) |
| MOV %RAX,-0x98(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| LEA 0xf(,%R14,8),%RAX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| SHR $0x4,%RAX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | N/A |
| MOV %RDI,-0xd0(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| SAL $0x4,%RAX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | N/A |
| MOV %RDX,-0x88(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV %RAX,-0x90(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV %RSI,-0xd8(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| VMOVDQA %XMM2,-0xb0(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 4 | 1 | vect (25.0%) |
| VMOVQ %XMM3,-0xa0(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| NOPW %CS:(%RAX,%RAX,1) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| NOPW %CS:(%RAX,%RAX,1) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| MOV -0x38(%RBP),%RAX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| SUB %FS:0x28,%RAX | 1 | 0.25 | 0.25 | 0.50 | 0.50 | 0 | 0.25 | 0.25 | 0 | 1 | 0.50 | N/A |
| JNE 2e1f <_Z7k_meansiP7point_tS0_PiS0_ii+0x2bf> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| LEA -0x28(%RBP),%RSP | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | 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 %R13 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 2 | 0.50 | N/A |
| POP %R14 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 2 | 0.50 | N/A |
| POP %R15 | 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 |
| CALL 2130 <__stack_chk_fail@plt> | 2 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 1 | 0.33 | 0 | 1 | N/A |
| NOPW %CS:(%RAX,%RAX,1) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| NOP | 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:55-96 |
| Module | kmeans-gcc-Ofast |
| nb instructions | 64 |
| nb uops | 67 |
| loop length | 307 |
| used x86 registers | 15 |
| used mmx registers | 0 |
| used xmm registers | 4 |
| used ymm registers | 0 |
| used zmm registers | 0 |
| nb stack references | 17 |
| micro-operation queue | 16.75 cycles |
| front end | 16.75 cycles |
| P0 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | |
|---|---|---|---|---|---|---|---|---|
| uops | 6.50 | 6.50 | 10.67 | 10.67 | 21.00 | 6.50 | 6.50 | 10.67 |
| cycles | 6.50 | 6.50 | 10.67 | 10.67 | 21.00 | 6.50 | 6.50 | 10.67 |
| Cycles executing div or sqrt instructions | NA |
| FE+BE cycles | 20.11 |
| Stall cycles | 3.17 |
| SB full (events) | 4.54 |
| Front-end | 16.75 |
| Dispatch | 21.00 |
| Overall L1 | 21.00 |
| all | 4% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | 7% |
| 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% |
| all | 11% |
| load | NA (no load vectorizable/vectorized instructions) |
| store | 12% |
| 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% |
| 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 |
| VMOVQ %RSI,%XMM1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | scal (12.5%) |
| VMOVD %R9D,%XMM4 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | scal (6.3%) |
| VPINSRQ $0x1,%RDX,%XMM1,%XMM2 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 3 | 2 | scal (12.5%) |
| MOV %RSP,%RBP | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| PUSH %R15 | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| PUSH %R14 | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| PUSH %R13 | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| PUSH %R12 | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| PUSH %RBX | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | N/A |
| SUB $0xb8,%RSP | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (12.5%) |
| MOV %RDX,-0xc0(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV %R8,-0xc8(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV %FS:0x28,%R8 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| MOV %R8,-0x38(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV 0x10(%RBP),%R8D | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| VPINSRD $0x1,%R8D,%XMM4,%XMM3 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 3 | 2 | scal (6.3%) |
| TEST %EDI,%EDI | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | scal (6.3%) |
| JLE 2e01 <_Z7k_meansiP7point_tS0_PiS0_ii+0x2a1> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| LEA -0x1(%R8),%EAX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| MOV %EDI,%R11D | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| MOVSXD %R8D,%R14 | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| MOV %R8D,-0x68(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| INC %RAX | 1 | 0.25 | 0.25 | 0 | 0 | 0 | 0.25 | 0.25 | 0 | 1 | 0.25 | N/A |
| LEA 0xf(,%R14,4),%RDX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| MOVL $0,-0x64(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 2 | 1 | scal (6.3%) |
| MOV %R9D,%R15D | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (6.3%) |
| LEA (,%RAX,4),%RDI | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| SAL $0x3,%RAX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | N/A |
| SHR $0x4,%RDX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (12.5%) |
| MOV %R11D,-0xb4(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (6.3%) |
| MOV %RAX,-0x78(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| LEA -0x60(%RBP),%RAX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| SAL $0x4,%RDX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | scal (12.5%) |
| MOV %RCX,%R12 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | scal (12.5%) |
| MOV %RAX,-0x98(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| LEA 0xf(,%R14,8),%RAX | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | N/A |
| SHR $0x4,%RAX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | N/A |
| MOV %RDI,-0xd0(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| SAL $0x4,%RAX | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 1 | 0.50 | N/A |
| MOV %RDX,-0x88(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV %RAX,-0x90(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| MOV %RSI,-0xd8(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| VMOVDQA %XMM2,-0xb0(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 4 | 1 | vect (25.0%) |
| VMOVQ %XMM3,-0xa0(%RBP) | 1 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 0 | 0.33 | 3 | 1 | scal (12.5%) |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| NOPW %CS:(%RAX,%RAX,1) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| NOPW %CS:(%RAX,%RAX,1) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| NOPL (%RAX) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| MOV -0x38(%RBP),%RAX | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 4-5 | 0.50 | N/A |
| SUB %FS:0x28,%RAX | 1 | 0.25 | 0.25 | 0.50 | 0.50 | 0 | 0.25 | 0.25 | 0 | 1 | 0.50 | N/A |
| JNE 2e1f <_Z7k_meansiP7point_tS0_PiS0_ii+0x2bf> | 1 | 0.50 | 0 | 0 | 0 | 0 | 0 | 0.50 | 0 | 0 | 0.50-1 | N/A |
| LEA -0x28(%RBP),%RSP | 1 | 0 | 0.50 | 0 | 0 | 0 | 0.50 | 0 | 0 | 1 | 0.50 | 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 %R13 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 2 | 0.50 | N/A |
| POP %R14 | 1 | 0 | 0 | 0.50 | 0.50 | 0 | 0 | 0 | 0 | 2 | 0.50 | N/A |
| POP %R15 | 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 |
| CALL 2130 <__stack_chk_fail@plt> | 2 | 0 | 0 | 0.33 | 0.33 | 1 | 0 | 1 | 0.33 | 0 | 1 | N/A |
| NOPW %CS:(%RAX,%RAX,1) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| NOP | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.25 | N/A |
| Run run_1_thread | Number processes: 1Number nodes: 1Number processes per node: 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: 1Number processes per node: 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: 1Number processes per node: 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: 1Number processes per node: 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: 1Number processes per node: 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: 1Number processes per node: 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 | 0.95 | 0.25 | 0.87 | 0.69 | 0.74 | 1.35 | 0.58 | 2.16 | 0.46 | 2.7 |
| Run | Number of threads | Efficiency (ideal is 1) | Speedup | Ideal Speedup | Time (s) | Coverage (%) |
|---|---|---|---|---|---|---|
| run_1_thread | 1 | 1 | 1 | 1 | 10.869999885559 | 5.352174282074 |
| run_2_threads | 1 | 0.95 | 1.91 | 2 | 10.859999656677 | 5.3119421005249 |
| run_4_threads | 1 | 0.87 | 3.48 | 4 | 10.874999046326 | 5.2887539863586 |
| run_8_threads | 1 | 0.74 | 5.93 | 8 | 10.875 | 5.233775138855 |
| run_16_threads | 1 | 0.58 | 9.25 | 16 | 10.875000953674 | 5.121383190155 |
| run_26_threads | 1 | 0.46 | 11.91 | 26 | 10.859998703003 | 4.9886312484741 |
| Name | Coverage (%) | Time (s) |
|---|---|---|
| ▼k_means(int, point_t*, point_t*, int*, point_t*, int, int)– | 5.35 | 10.87 |
| ▼Loop 5 - main.cpp:56-95 - kmeans-gcc-Ofast– | 0.00 | 0.00 |
| ○Loop 4 - main.cpp:81-84 - kmeans-gcc-Ofast | 5.35 | 10.87 |
| ○Loop 6 - main.cpp:86-93 - kmeans-gcc-Ofast | 0.00 | 0.00 |
