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- r0: spmxv-gcc-o3.exe
- r1: spmxv-gcc-ofast.exe
- r2: spmxv-acfl-o3.exe
- r3: spmxv-acfl-ofast.exe
Metric | r0 | r1 | r2 | r3 |
---|
Total Time (s) | 84.56 | 84.93 | 23.89 | 24.22 |
Max (Thread Active Time) (s) | 33.93 | 33.11 | 22.74 | 23.10 |
Average Active Time (s) | 31.13 | 30.03 | 21.09 | 21.40 |
Activity Ratio (%) | 36.8 | 35.4 | 88.3 | 88.4 |
Average number of active threads | 35.346 | 33.945 | 84.717 | 84.827 |
Affinity Stability (%) | 97.8 | 97.8 | 99.9 | 99.9 |
GFLOPS | 36.889 | 38.933 | 122.797 | 124.483 |
Time in analyzed loops (%) | 40.4 | 38.8 | 66.1 | 66.6 |
Time in analyzed innermost loops (%) | 38.7 | 35.0 | 63.0 | 61.2 |
Time in user code (%) | 40.4 | 38.8 | 66.1 | 66.6 |
Compilation Options Score (%) | 75.0 | 62.5 | 100 | 100 |
Array Access Efficiency (%) | 33.3 | 27.2 | 65.1 | 64.0 |
|
Potential Speedups |  |
Perfect Flow Complexity | 1.00 | 1.00 | 1.00 | 1.00 |
Perfect OpenMP + MPI + Pthread | 2.15 | 2.21 | 1.30 | 1.33 |
Perfect OpenMP + MPI + Pthread + Perfect Load Distribution | 2.69 | 2.83 | 1.63 | 1.62 |
No Scalar Integer | Potential Speedup | 1.01 | 1.03 | 1.00 | 1.04 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 |
FP Vectorised | Potential Speedup | 1.00 | 1.02 | 1.27 | 1.29 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 |
Fully Vectorised | Potential Speedup | 1.01 | 1.05 | 1.50 | 1.24 |
Nb Loops to get 80% | 1 | 2 | 1 | 2 |
Only FP Arithmetic | Potential Speedup | 1.02 | 1.04 | 1.00 | 1.04 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 |
Source Object | Issue |
▼spmxv-gcc-o3.exe– | |
▼main.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼spmxv-gcc-ofast.exe– | |
▼main.cpp– | |
○ | -O3 or -Ofast is missing. |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼spmxv-acfl-o3.exe– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼spmxv-acfl-ofast.exe– | |
▼main.cpp– | |
○ | |
| r0 | r1 | r2 | r3 |
Experiment Name | SPMxV Neoverse V2 Multicore run : spmxv-gcc-o3.exe | SPMxV Neoverse V2 Multicore run : spmxv-gcc-ofast.exe | SPMxV Neoverse V2 Multicore run : spmxv-acfl-o3.exe | SPMxV Neoverse V2 Multicore run : spmxv-acfl-ofast.exe |
Application | ./spmxv-gcc-o3.exe | ./spmxv-gcc-ofast.exe | ./spmxv-acfl-o3.exe | ./spmxv-acfl-ofast.exe |
Timestamp | 2025-07-01 07:48:01 | 2025-07-01 07:49:36 | 2025-07-01 09:33:55 | 2025-07-01 09:34:27 |
Experiment Type | OpenMP; | same as r0 | same as r0 | same as r0 |
Machine | ip-172-31-47-249.ec2.internal | same as r0 | same as r0 | same as r0 |
Architecture | aarch64 | same as r0 | same as r0 | same as r0 |
Micro Architecture | ARM_NEOVERSE_V2 | 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 6.1.109-118.189.amzn2023.aarch64 #1 SMP Tue Sep 10 08:58:40 UTC 2024 | 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_V2 | same as r0 | same as r0 | same as r0 |
Compilation Options |
spmxv-gcc-o3.exe: GNU C++17 14.2.0 -mlittle-endian -mabi=lp64 -mcpu=neoverse-v2+crc+sve2-aes+sve2-sha3+nossbs -g -O3 -fopenmp -fno-omit-frame-pointer | spmxv-gcc-ofast.exe: GNU C++17 14.2.0 -mlittle-endian -mabi=lp64 -mcpu=neoverse-v2+crc+sve2-aes+sve2-sha3+nossbs -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-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_AmazonLinux-2023/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_AmazonLinux-2023/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 | 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_AmazonLinux-2023/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_AmazonLinux-2023/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 |
Number of processes observed | 1 | same as r0 | same as r0 | same as r0 |
Number of threads observed | 96 | 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 | 96 | 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 |