Help is available by moving the cursor above any
symbol or by checking MAQAO website.
- r0: run_1_thread
- r1: run_2_threads
- r2: run_4_threads
- r3: run_8_threads
- r4: run_16_threads
- r5: run_26_threads
| Metric | r0 | r1 | r2 | r3 | r4 | r5 |
|---|
| Total Time (s) | 298.34 | 201.12 | 150.32 | 124.72 | 110.57 | 106.11 |
| Max (Thread Active Time) (s) | 295.88 | 152.12 | 77.83 | 39.51 | 19.98 | 13.20 |
| Average Active Time (s) | 295.88 | 150.51 | 75.68 | 38.23 | 19.32 | 12.26 |
| Activity Ratio (%) | 99.2 | 74.8 | 50.4 | 30.7 | 17.5 | 11.6 |
| Average number of active threads | 0.992 | 1.497 | 2.014 | 2.452 | 2.796 | 3.004 |
| Affinity Stability (%) | 68.9 | 51.7 | 35.5 | 21.7 | 12.5 | 8.78 |
| GFLOPS | 3.766 | 5.671 | 7.588 | 9.128 | 10.169 | 10.481 |
| Time in analyzed loops (%) | 100.0 | 99.7 | 99.2 | 98.1 | 96.5 | 93.8 |
| Time in analyzed innermost loops (%) | 93.9 | 93.7 | 92.8 | 92.2 | 90.9 | 88.3 |
| Time in user code (%) | 100.0 | 99.7 | 99.2 | 98.1 | 96.5 | 93.8 |
| Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 | 100 |
| Array Access Efficiency (%) | Not Available | Not Available | Not Available | Not Available | Not Available | Not Available |
|
| Potential Speedups |  |
| Perfect Flow Complexity | 4.36 | 4.32 | 4.19 | 4.08 | 3.83 | 3.42 |
| Perfect OpenMP/MPI/Pthread/TBB | 1.00 | 1.00 | 1.00 | 1.00 | 1.01 | 1.01 |
| Perfect OpenMP/MPI/Pthread/TBB + Perfect Load Distribution | 1.00 | 1.01 | 1.04 | 1.05 | 1.07 | 1.15 |
| Scalability - Gap | 1.00 | 1.35 | 2.02 | 3.34 | 5.93 | 9.25 |
| No Scalar Integer | Potential Speedup | 1.24 | 1.23 | 1.23 | 1.23 | 1.22 | 1.21 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 |
| FP Vectorised | Potential Speedup | 1.94 | 1.94 | 1.93 | 1.91 | 1.87 | 1.80 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 |
| Fully Vectorised | Potential Speedup | 5.69 | 5.61 | 5.48 | 5.20 | 4.74 | 4.10 |
| Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 |
| Only FP Arithmetic | Potential Speedup | 1.64 | 1.64 | 1.63 | 1.62 | 1.60 | 1.56 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 |
| Source Object | Issue |
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | |
| r0 | r1 | r2 | r3 | r4 | r5 |
| Experiment Name | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 |
| Application | ./kmeans/kmeans-gcc-O3-all | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Timestamp | 2025-07-16 18:29:52 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Experiment Type | Sequential | OpenMP; | same as r1 | same as r1 | same as r1 | same as r1 |
| Machine | skylake | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Architecture | x86_64 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Micro Architecture | SKYLAKE | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Model Name | Intel(R) Xeon(R) Platinum 8170 CPU @ 2.10GHz | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Cache Size | 36608 KB | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Number of Cores | 26 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Maximal Frequency | 2.1 GHz | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| OS Version | Linux 6.15.5-arch1-1 #1 SMP PREEMPT_DYNAMIC Sun, 06 Jul 2025 11:14:36 +0000 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Architecture used during static analysis | x86_64 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Micro Architecture used during static analysis | SKYLAKE | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Compilation Options |
kmeans-gcc-O3-all: GNU C++14 15.1.1 20250425 -march=skylake-avx512 -mmmx -mpopcnt -msse -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -mavx -mavx2 -mno-sse4a -mno-fma4 -mno-xop -mfma -mavx512f -mbmi -mbmi2 -maes -mpclmul -mavx512vl -mavx512bw -mavx512dq -mavx512cd -mno-avx512vbmi -mno-avx512ifma -mno-avx512vpopcntdq -mno-avx512vbmi2 -mno-gfni -mno-vpclmulqdq -mno-avx512vnni -mno-avx512bitalg -mno-avx512bf16 -mno-avx512vp2intersect -mno-3dnow -madx -mabm -mno-cldemote -mclflushopt -mclwb -mno-clzero -mcx16 -mno-enqcmd -mf16c -mfsgsbase -mfxsr -mhle -msahf -mno-lwp -mlzcnt -mmovbe -mno-movdir64b -mno-movdiri -mno-mwaitx -mno-pconfig -mpku -mprfchw -mno-ptwrite -mno-rdpid -mrdrnd -mrdseed -mrtm -mno-serialize -mno-sgx -mno-sha -mno-shstk -mno-tbm -mno-tsxldtrk -mno-vaes -mno-waitpkg -mno-wbnoinvd -mxsave -mxsavec -mxsaveopt -mxsaves -mno-amx-tile -mno-amx-int8 -mno-amx-bf16 -mno-uintr -mno-hreset -mno-kl -mno-widekl -mno-avxvnni -mno-avx512fp16 -mno-avxifma -mno-avxvnniint8 -mno-avxneconvert -mno-cmpccxadd -mno-amx-fp16 -mno-prefetchi -mno-raoint -mno-amx-complex -mno-avxvnniint16 -mno-sm3 -mno-sha512 -mno-sm4 -mno-apxf -mno-usermsr -mno-avx10.2 -mno-amx-avx512 -mno-amx-tf32 -mno-amx-transpose -mno-amx-fp8 -mno-movrs -mno-amx-movrs --param=l1-cache-size=32 --param=l1-cache-line-size=64 --param=l2-cache-size=36608 -mtune=skylake-avx512 -g -O3 -std=c++14 -fno-omit-frame-pointer -fopenmp -ftree-vectorize -funroll-loops -ffast-math | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Number of processes observed | 1 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Number of threads observed | 1 | 2 | 4 | 8 | 16 | 26 |
| Frequency Driver | intel_cpufreq | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Frequency Governor | schedutil | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Huge Pages | always | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Hyperthreading | off | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Number of sockets | 2 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Number of cores per socket | 26 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| MAQAO version | 2025.1.1 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| MAQAO build | 933a186bb86a5daa8e86c3880bb3791669fb7baf::20250716-135632 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Comments | Intel Xeon Platinum 8170 (Skylake CPU), 1-26 threads runs | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |