v2.0.0

Added

• Load sustainment algorithm was added to testcases that execute simultaneously multiple copies
• CUDA Pool based multicast memory allocator
• A "bandwidthUnit" option to specify the unit used when reporting bandwidths was added to nvloom_cli.
• Scalable egm-to-rack testcase suite was added to nvloom_cli
• Rack-aware all-to-one testcase suite was added to nvloom_cli
• An option to plot a histogram of the results was added to plot_heatmaps.py
• Consistency checks of system settings (such as EGM or driver versions) between processes were added to nvloom_cli

Changed

• [Breaking change] nvloom_cli "bufferSize" argument is now interpreted as bytes, and supports parsing K/M/G/T units
• Copy kernels are now launched with NVLink-centric scheduling
• Asserts were enhanced by adding information about what copies were executing when the error happened
• Asserts were enhanced by adding information about what stage the benchmark was when the error happened
• Tuning of multicast copy kernels
• When running nvloom_cli with CUDA Pool allocators, tests use the newly added CUDA Pool multicast allocator
• Default value of the "gpuToRackSamples" argument was changed from 5 to 3
• Plot_heatmaps.py now uses uv to handle its dependencies using PEP 723
• Plot_heatmaps.py prints what nodes it was run on in the graph title
• Minor performance enhancements

Fixed

• Fixed a bug where a CSV testcase would ignore specified number of iterations
• Fixed a bug where nvloom_cli could hang when using "duration" option to repeat testcases

Removed

• Support for CUDA pre-13.0 was removed
• Support for drivers pre-580 was removed