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r0: OMP1
r1: OMP2
r2: OMP4
r3: OMP8
r4: OMP16
r5: OMP24
Metric r0 r1 r2 r3 r4 r5 Total Time (s) 4.73 E3 2.68 E3 1.64 E3 979.98 628.93 508.50 Max (Thread Active Time) (s) 4.71 E3 2.66 E3 1.62 E3 964.37 613.34 492.24 Average Active Time (s) 4.71 E3 2.61 E3 1.54 E3 880.25 525.13 402.11 Activity Ratio (%) 99.6 97.4 94.5 89.8 83.5 79.1 Average number of active threads 3.984 7.791 15.115 28.743 53.437 75.914 Affinity Stability (%) 100.0 100.0 99.9 99.9 99.8 99.8 GFLOPS 9.776 19.104 36.943 69.268 125.769 139.855 Time in analyzed loops (%) 0.42 0.36 0.30 0.27 0.23 0.20 Time in analyzed innermost loops (%) 0.41 0.36 0.30 0.27 0.22 0.20 Time in user code (%) 2.35 2.10 1.76 1.55 1.30 1.14 Compilation Options Score (%) 100 100 100 100 100 100 Array Access Efficiency (%) 55.2 55.2 55.1 55.3 54.9 55.1 Potential Speedups Perfect Flow Complexity 1.00 1.00 1.00 1.00 1.00 1.00 Perfect OpenMP + MPI + Pthread 1.01 1.01 1.01 1.02 1.03 1.04 Perfect OpenMP + MPI + Pthread + Perfect Load Distribution 1.01 1.03 1.07 1.14 1.25 1.34 Scalability - Gap 1.00 1.13 1.38 1.66 2.13 2.58 No Scalar Integer Potential Speedup 1.00 1.00 1.00 1.00 1.00 1.00 Nb Loops to get 80% 1 1 1 1 1 1 FP Vectorised Potential Speedup 1.00 1.00 1.00 1.00 1.00 1.00 Nb Loops to get 80% 1 1 1 1 1 1 Fully Vectorised Potential Speedup 1.00 1.00 1.00 1.00 1.00 1.00 Nb Loops to get 80% 3 3 3 3 3 4 Only FP Arithmetic Potential Speedup 1.00 1.00 1.00 1.00 1.00 1.00 Nb Loops to get 80% 3 3 3 3 3 3
▼ xhpl– ▼ HPL_lmul.c– ○ ▼ HPL_rand.c– ○ ▼ HPL_dlaswp02N.c– ○ ▼ HPL_bcast.c– ○ ▼ HPL_dlacpy.c– ○ ▼ HPL_dlaswp04N.c– ○ ▼ HPL_1ring.c– ○ ▼ HPL_pdmatgen.c– ○ ▼ HPL_setran.c– ○ ▼ HPL_pdlange.c– ○ ▼ HPL_ladd.c– ○ ▼ HPL_dlaswp03N.c– ○ ▼ HPL_dlaswp01N.c– ○
▼ xhpl– ▼ HPL_lmul.c– ○ ▼ HPL_rand.c– ○ ▼ HPL_dlaswp02N.c– ○ ▼ HPL_bcast.c– ○ ▼ HPL_dlacpy.c– ○ ▼ HPL_dlaswp04N.c– ○ ▼ HPL_1ring.c– ○ ▼ HPL_pdmatgen.c– ○ ▼ HPL_setran.c– ○ ▼ HPL_pdlange.c– ○ ▼ HPL_ladd.c– ○ ▼ HPL_dlaswp03N.c– ○ ▼ HPL_dlaswp01N.c– ○
▼ xhpl– ▼ HPL_lmul.c– ○ ▼ HPL_rand.c– ○ ▼ HPL_dlaswp02N.c– ○ ▼ HPL_bcast.c– ○ ▼ HPL_dlacpy.c– ○ ▼ HPL_dlaswp04N.c– ○ ▼ HPL_1ring.c– ○ ▼ HPL_pdmatgen.c– ○ ▼ HPL_setran.c– ○ ▼ HPL_pdlange.c– ○ ▼ HPL_ladd.c– ○ ▼ HPL_dlaswp03N.c– ○ ▼ HPL_dlaswp01N.c– ○
▼ xhpl– ▼ HPL_lmul.c– ○ ▼ HPL_rand.c– ○ ▼ HPL_dlaswp02N.c– ○ ▼ HPL_bcast.c– ○ ▼ HPL_dlacpy.c– ○ ▼ HPL_dlaswp04N.c– ○ ▼ HPL_1ring.c– ○ ▼ HPL_pdmatgen.c– ○ ▼ HPL_setran.c– ○ ▼ HPL_pdlange.c– ○ ▼ HPL_ladd.c– ○ ▼ HPL_dlaswp03N.c– ○ ▼ HPL_dlaswp01N.c– ○
▼ xhpl– ▼ HPL_lmul.c– ○ ▼ HPL_rand.c– ○ ▼ HPL_dlaswp02N.c– ○ ▼ HPL_bcast.c– ○ ▼ HPL_dlacpy.c– ○ ▼ HPL_dlaswp04N.c– ○ ▼ HPL_1ring.c– ○ ▼ HPL_pdmatgen.c– ○ ▼ HPL_setran.c– ○ ▼ HPL_pdlange.c– ○ ▼ HPL_ladd.c– ○ ▼ HPL_dlaswp03N.c– ○ ▼ HPL_dlaswp01N.c– ○
▼ xhpl– ▼ HPL_lmul.c– ○ ▼ HPL_rand.c– ○ ▼ HPL_dlaswp02N.c– ○ ▼ HPL_bcast.c– ○ ▼ HPL_dlacpy.c– ○ ▼ HPL_dlaswp04N.c– ○ ▼ HPL_1ring.c– ○ ▼ HPL_pdmatgen.c– ○ ▼ HPL_setran.c– ○ ▼ HPL_pdlange.c– ○ ▼ HPL_ladd.c– ○ ▼ HPL_dlaswp03N.c– ○ ▼ HPL_dlaswp01N.c– ○
r0 r1 r2 r3 r4 r5 Experiment Name Application ./bin/Linux_AArch64/xhpl same as r0 same as r0 same as r0 same as r0 same as r0 Timestamp 2025-06-23 12:25:04 same as r0 same as r0 same as r0 same as r0 same as r0 Experiment Type MPI; MPI; OpenMP; same as r1 same as r1 same as r1 same as r1 Machine ip-172-31-47-249.ec2.internal same as r0 same as r0 same as r0 same as r0 same as r0 Architecture aarch64 same as r0 same as r0 same as r0 same as r0 same as r0 Micro Architecture ARM_NEOVERSE_V2 same as r0 same as r0 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 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 same as r0 same as r0 Architecture used during static analysis aarch64 same as r0 same as r0 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 same as r0 same as r0 Compilation Options xhpl : 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 -o HPL_ladd.o -c -D Add__ -D F77_INTEGER=int -D StringSunStyle -D HPL_DETAILED_TIMING -D HPL_PROGRESS_REPORT -I /home/eoseret/hpl-2.3/include -I /home/eoseret/hpl-2.3/include/Linux_AArch64 -I /opt/arm/armpl-24.10.1_AmazonLinux-2023_arm-linux-compiler/include -fopenmp -O3 -ffast-math -g -grecord-command-line -mcpu=native -Wall ../HPL_ladd.c -I /home/eoseret/openmpi_acfl2410/include same as r0 same as r0 same as r0 same as r0 same as r0 Number of processes observed 4 same as r0 same as r0 same as r0 same as r0 same as r0 Number of threads observed 4 8 16 32 64 96 Frequency Driver NA same as r0 same as r0 same as r0 same as r0 same as r0 Frequency Governor NA same as r0 same as r0 same as r0 same as r0 same as r0 Huge Pages madvise 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 1 same as r0 same as r0 same as r0 same as r0 same as r0 Number of cores per socket 96 same as r0 same as r0 same as r0 same as r0 same as r0 MAQAO version 2025.1.0 same as r0 same as r0 same as r0 same as r0 same as r0 MAQAO build b107544c0173fc3785aa7d997ff783dc12b975d2::20250527-133805 same as r0 same as r0 same as r0 same as r0 same as r0 Comments HPL benchmark compiled with ARM ACfL/Armpl 24.10. Matrix order: 100K, block size 384. Run on AWS Graviton 4 with 1 NUMA node and 96 cores. Using 4 MPI ranks to limit multithreading overhead same as r0 same as r0 same as r0 same as r0 same as r0
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