2018-11-08

OpenHPC Mellanox Ansible task

• Fujitsu confirms their MOFED task works in their cluster (HPC-351)
  • Works on both SMS and Warewulf VNFS
  • Not confirmed if Ansible runs on compute nodes (the way Linaro does)
    • Linaro will test locally
• Restart during installation will split installation in two
  • This is required because further tasks later (Lustre, IPoIB) will require IB interfaces up
  • Our IPoIB step should run after restart (or not, if using OSS drivers)

LLVM changes almost done, using Linaro's git now

• Bug found in branch elimination, fixing
• Pipeliner discussed with Arm, will update the list with a new RFC
• Regression testing for s3111, should be ready in a few days
• s278 forcing vectoriser works, need to work on legality

Ansible repository merge

• Needs a cleanup on the big patches, then we can start proposing merges
• We'll have to test on both sides and only merge when it's green everywhere
• The order doesn't matter much, but getting the clean up first would help either way

OpenHPC v1.3.6 has GCC 8

• SVE QEMU user emulation available upstream
• Fujitsu SVE hardware can now be tested with OpenHPC
• Linaro still has to test the new release and move to it by default

OpenBLAS

• Improve ARMv8 base support, would be good for undetected/internal/experimental cores
• Need to also improve libm (Arm is doing it) & string functions (@renato: ask again about Cortex Strings)
• Make sure they're not on by default, as specialised kernels can't use FP registers (-mfpu=none could help?)
  
  

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