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- r0: spmxv-gcc-ofast.exe
- r1: spmxv-gcc-o3.exe
- r2: spmxv-acfl-ofast.exe
- r3: spmxv-acfl-o3.exe
| Metric | r0 | r1 | r2 | r3 |
|---|
| Total Time (s) | 75.00 | 75.75 | 61.09 | 61.76 |
| Max (Thread Active Time) (s) | 60.69 | 63.73 | 58.70 | 59.43 |
| Average Active Time (s) | 57.85 | 60.68 | 55.82 | 56.49 |
| Activity Ratio (%) | 77.1 | 80.1 | 91.4 | 91.5 |
| Average number of active threads | 49.359 | 51.264 | 58.481 | 58.532 |
| Affinity Stability (%) | 96.3 | 96.3 | 100.0 | 100.0 |
| GFLOPS | 23.497 | 20.540 | 49.323 | 47.250 |
| Time in analyzed loops (%) | 77.0 | 78.9 | 85.6 | 85.7 |
| Time in analyzed innermost loops (%) | 70.6 | 72.9 | 77.4 | 79.4 |
| Time in user code (%) | 77.0 | 78.9 | 85.6 | 85.7 |
| Compilation Options Score (%) | 62.5 | 75.0 | 100 | 100 |
| Array Access Efficiency (%) | 33.3 | 33.3 | 63.6 | 64.3 |
|
| Potential Speedups |  |
| Perfect Flow Complexity | 1.00 | 1.00 | 1.00 | 1.00 |
| Perfect OpenMP + MPI + Pthread | 1.24 | 1.21 | 1.13 | 1.12 |
| Perfect OpenMP + MPI + Pthread + Perfect Load Distribution | 1.36 | 1.33 | 1.23 | 1.23 |
| No Scalar Integer | Potential Speedup | 1.05 | 1.06 | 1.06 | 1.00 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 |
| FP Vectorised | Potential Speedup | 1.00 | 1.00 | 1.58 | 1.66 |
| Nb Loops to get 80% | 1 | 1 | 2 | 1 |
| Fully Vectorised | Potential Speedup | 1.03 | 1.03 | 2.60 | 2.80 |
| Nb Loops to get 80% | 1 | 1 | 2 | 1 |
| Only FP Arithmetic | Potential Speedup | 1.05 | 1.06 | 1.06 | 1.00 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 |
| Source Object | Issue |
| ▼spmxv-gcc-ofast.exe– | |
| ▼main.cpp– | |
| ○ | -O3 or -Ofast is missing. |
| ○ | -funroll-loops is missing. |
| Source Object | Issue |
| ▼spmxv-gcc-o3.exe– | |
| ▼main.cpp– | |
| ○ | -funroll-loops is missing. |
| Source Object | Issue |
| ▼spmxv-acfl-ofast.exe– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼spmxv-acfl-o3.exe– | |
| ▼main.cpp– | |
| ○ | |
| r0 | r1 | r2 | r3 |
| Experiment Name | SPMxV Neoverse V1 Multicore run : spmxv-gcc-ofast.exe | SPMxV Neoverse V1 Multicore run : spmxv-gcc-o3.exe | SPMxV Neoverse V1 Multicore run : spmxv-acfl-ofast.exe | SPMxV Neoverse V1 Multicore run : spmxv-acfl-o3.exe |
| Application | ./spmxv-gcc-ofast.exe | ./spmxv-gcc-o3.exe | ./spmxv-acfl-ofast.exe | ./spmxv-acfl-o3.exe |
| Timestamp | 2025-07-01 07:57:36 | 2025-07-01 07:56:15 | 2025-07-01 09:32:58 | 2025-07-01 09:31:52 |
| Experiment Type | OpenMP; | same as r0 | same as r0 | same as r0 |
| Machine | ip-172-31-18-66 | same as r0 | same as r0 | same as r0 |
| Architecture | aarch64 | same as r0 | same as r0 | same as r0 |
| Micro Architecture | ARM_NEOVERSE_V1 | same as r0 | same as r0 | same as r0 |
| Model Name | | | | |
| Cache Size | | | | |
| Number of Cores | | | | |
| Maximal Frequency | 0 GHz | same as r0 | same as r0 | same as r0 |
| OS Version | Linux 6.8.0-1030-aws #32-Ubuntu SMP Wed May 28 19:33:40 UTC 2025 | same as r0 | same as r0 | same as r0 |
| Architecture used during static analysis | aarch64 | same as r0 | same as r0 | same as r0 |
| Micro Architecture used during static analysis | ARM_NEOVERSE_V1 | same as r0 | same as r0 | same as r0 |
| Compilation Options |
spmxv-gcc-ofast.exe: GNU C++17 14.2.0 -mlittle-endian -mabi=lp64 -mcpu=neoverse-v1+sm4+crc+aes+sha3 -g -Ofast -fopenmp -fno-omit-frame-pointer GNU C17 14.2.0 -mlittle-endian -mabi=lp64 -g -g -g -O2 -O2 -O2 -fbuilding-libgcc -fno-stack-protector -fPIC | spmxv-gcc-o3.exe: GNU C++17 14.2.0 -mlittle-endian -mabi=lp64 -mcpu=neoverse-v1+sm4+crc+aes+sha3 -g -O3 -fopenmp -fno-omit-frame-pointer | spmxv-acfl-ofast.exe: Arm C/C++/Fortran Compiler version 24.10.1 (build number 4) (based on LLVM 19.1.0) /opt/arm/arm-linux-compiler-24.10.1_Ubuntu-20.04/llvm-bin/clang-19 --driver-mode=g++ -I . -I utils -MMD -MP -g -fopenmp -march=native -fno-omit-frame-pointer -Ofast -grecord-command-line -c -o main.o main.cpp Arm C/C++/Fortran Compiler version 24.10.1 (build number 4) (based on LLVM 19.1.0) /opt/arm/arm-linux-compiler-24.10.1_Ubuntu-20.04/llvm-bin/clang-19 --driver-mode=g++ -I . -I utils -MMD -MP -g -fopenmp -march=native -fno-omit-frame-pointer -Ofast -grecord-command-line -c -o utils/ooo_cmdline.o utils/ooo_cmdline.cpp | spmxv-acfl-o3.exe: Arm C/C++/Fortran Compiler version 24.10.1 (build number 4) (based on LLVM 19.1.0) /opt/arm/arm-linux-compiler-24.10.1_Ubuntu-20.04/llvm-bin/clang-19 --driver-mode=g++ -I . -I utils -MMD -MP -g -fopenmp -march=native -fno-omit-frame-pointer -O3 -grecord-command-line -c -o main.o main.cpp Arm C/C++/Fortran Compiler version 24.10.1 (build number 4) (based on LLVM 19.1.0) /opt/arm/arm-linux-compiler-24.10.1_Ubuntu-20.04/llvm-bin/clang-19 --driver-mode=g++ -I . -I utils -MMD -MP -g -fopenmp -march=native -fno-omit-frame-pointer -O3 -grecord-command-line -c -o utils/ooo_cmdline.o utils/ooo_cmdline.cpp |
| Number of processes observed | 1 | same as r0 | same as r0 | same as r0 |
| Number of threads observed | 64 | same as r0 | same as r0 | same as r0 |
| Frequency Driver | NA | same as r0 | same as r0 | same as r0 |
| Frequency Governor | NA | same as r0 | same as r0 | same as r0 |
| Huge Pages | madvise | same as r0 | same as r0 | same as r0 |
| Hyperthreading | off | same as r0 | same as r0 | same as r0 |
| Number of sockets | 1 | same as r0 | same as r0 | same as r0 |
| Number of cores per socket | 64 | same as r0 | same as r0 | same as r0 |
| MAQAO version | 2025.1.1 | same as r0 | same as r0 | same as r0 |
| MAQAO build | f3e40b5f1dbd62488bc0cc5f885d40677c87bfe8::20250630-094248 | same as r0 | same as r0 | same as r0 |
| Comments | | same as r0 | same as r0 | same as r0 |