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Attendance
Committee Members
| Name | Present |
|---|---|
| Kanta Vekaria (OCTO, Linaro) |   |
| Martin Stadtler (Director of LEG, Linaro) | |
Darren Cepulis (ARM) |
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| Eric Van Hensbergen (ARM) | |
Kangkang Shen (HiSilicon) |
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Bhalchandra Deshpande(Broadcom) |
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Larry Wikelius (Cavium) |
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Gary Yurcak (Qualcomm) |
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Rammohan Peddibhotla (Qualcomm) |
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Linda Knippers (HPE) |
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Jon Masters (RedHat) |
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Takeharu Kato (Fujitsu) |
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| Koichi Hirai (Fujitsu) | |
Guests
| Name | Present |
|---|---|
David Rusling (CTO, Linaro) |
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| Mark Orvek (EVP, Linaro Engineering) | |
| Andrea Gallo (VP of Segment Groups, Linaro) |
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| Anoop Saxena (Project Manager, Segments) |
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Francoise Ozog (Director of LNG, Linaro) |
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Renato Golin |
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Agenda
- Update on openHPC - Eric Van Hensbergen / Alan Hayward (ARM)
- Update on ARM open source SVE work - Will Lovett (ARM)
View file name Linaro - ARM SVE OSS work Dec 2016.pdf height 250
Minutes
notes hereOpenHPC
Release of 1.3 version last week
Works well on a simple setup
May not work (not tested) with InfiniBand
Cavium can help with that
ARM is using their own compiler to build OpenHPC packages
May need to have a complete version of the whole system
Setup a new open build system or use OpenHPC’s own?
Suse building all packages with their open build system
Which would probably fragment the ecosystem (PPA?)
Definite intention to have LLVM
In addition, libc++, libomp
ARM and Linaro interactions
Compiler upstreaming
GCC is on a forward branch (not master yet), but usable and being tested by ARM
People can use it now, but will be officially out not earlier than gcc-8
Most discussions will be target-independent
Talk to Maxim to check if we can further validate this (emulator?)
Binutils is released in 2.28
LLVM snapshot in GitHub
Linaro to look again to the MVT patch
RISC-V guys haven’t came back, so let’s proceed
SVE docs are public
This gives us the missing piece to start reviewing patches
Barring specific complaints, we can start accepting them
ACLE almost there?
Vector libraries
Working on Libmvec, parallel-libs
Initial SVE implementation in the Linux kernel
Glibc is probably good, not much to do
Fortran
It’s in ARM’s Clang (PGI’s)
Worth starting the fight with Flang?
Do we have support from the community?
Move to GitHub first, improve and upstream?
Can ARM validate Fortran internally?
Talk to Hal Finkel to help
Benchmarks for SVE
Darren sent a list of SVE-important benchmarks
We should look at those from a vectorizer point of view
They’re not used by programs, but they contain common HPC code
Huawei
https://github.com/open-mpi/ompi/issues/2160
Requesting assistance for work on v2.1.0: Fix OOS issues in vader BTL with single-threaded scenarios #2160