TransferBench v1.61.00

v1.61.00

Added

• Added a2a_n preset which conducts alltoall GPU-to-GPU tranfers over nearest NIC executors
• Re-implemented GFX_BLOCK_ORDER which allows for control over how threadblocks of multiple transfers are ordered
  • 0 = sequential, 1 = interleaved, 2 = random
• Added a2asweep preset which tries various CU/unroll options for GFX-executed all-to-all
• Rewrite main GID index detection logic
• Show the GID index and description in the topology table. It is helpful for debugging purposes
• Added GFX_WORD_SIZE to allow for different packed float sizes to use for GFX kernel. Must be either 4 (default), 2 or 1

Fixed

• Avoid build errors for CMake and Makefile if infiniband/verbs.h header is not present and disable NIC executor in such case
• Have a priority list of which GID entry to go for instead of hardcoding choices based on underdocumented user input (such as RoCE version and IP address family)
• Use link-local when it is the only choice (i.e. when routing information is not available beyond local link)