NMO is a memory-centric profiling tool suite for heterogeneous memory.
NMO can be built using Make. It depends on libpfm, libnuma and openssl.
make -j
Documentation of NMO is available in the NMO User Manual.
- Intel Skylake-X
- ARM64
NMO use SPE to sample data in the ARM architecture, so we need to load SPE into perf tool when profiling virtual address of memory. Disable kernel page table isolation for the target. To ensure that kernel page table isolation is disabled, boot the machine with the command-line argument kpti=off. Use the following command to check if SPE loaded successfully.
$ perf list | grep "arm_spe"
arm_spe_0// [Kernel PMU event]
J. Wahlgren, G. Schieffer, M. Gokhale, and I. B. Peng, “A Quantitative Approach for Adopting Disaggregated Memory in HPC Systems,” in Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis (SC), 2023.
S. Miksits, R. Shi, M. Gokhale, J. Wahlgren, G. Schieffer, and I. B. Peng, “Multi-level Memory-Centric Profiling on ARM Processors with ARM SPE,” in International Workshop on Memory System, Management and Optimization (MEMO), 2024.
NMO is licensed under the GNU General Public License version 3.
Copyright 2023-2024 Jacob Wahlgren, Ivy B. Peng, Samuel Miksits, Ruimin Shi.
The development of NMO is supported by the European Commission under the Horizon project OpenCUBE (101092984) and the Swedish Research Council (no. 2022.03062).