21:00:35 <oneswig> #startmeeting scientific-sig
21:00:36 <openstack> Meeting started Tue Jun 23 21:00:35 2020 UTC and is due to finish in 60 minutes.  The chair is oneswig. Information about MeetBot at http://wiki.debian.org/MeetBot.
21:00:37 <openstack> Useful Commands: #action #agreed #help #info #idea #link #topic #startvote.
21:00:39 <openstack> The meeting name has been set to 'scientific_sig'
21:01:02 <oneswig> Greetings
21:01:24 <oneswig> No set agenda for today
21:02:58 <b1airo> lurking
21:03:16 <oneswig> Hey b1airo, how's things
21:03:19 <oneswig> #chair b1airo
21:03:19 <openstack> Current chairs: b1airo oneswig
21:04:20 <b1airo> a bit fuzzy this morning... up a few times with nosebleed dramas - Eva is growing too fast at the moment apparently :-)
21:05:13 <oneswig> In her sleep?  Ouch.
21:05:54 <oneswig> I was up late but putting together some work stuff.  Not much to show for it.
21:06:05 <b1airo> the joys
21:06:48 <oneswig> Having fun now though - adding new telemetry sources to a deployment.  Watching Elastic and co eat all the RAM in the world.
21:07:19 <b1airo> i had a colleague from Melbourne get in touch recently regarding GPU P2P in an OpenStack KVM cloud
21:08:03 <oneswig> With questions or answers?
21:08:22 <b1airo> mainly questions
21:08:45 <b1airo> he appears to have a 4-way T4 box
21:09:31 <b1airo> he's working with Aptira. i pointed him in the direction of the experimental GPU clique stuff in KVM and he was going to see if they could try it out
21:09:57 <b1airo> though who knows if that even works - Google doesn't provide much hope
21:10:10 <oneswig> There have to be some developments in this area by now...
21:10:43 <b1airo> and looks like NVIDIA wants you to pay again for the privilege now and do it via GRID/vGPU (which recently got support for P2P by the looks of things)
21:10:56 <oneswig> It's pretty grunty stuff to get working though.  All those layers of indirection in PCI bus addresses.
21:11:19 <oneswig> Interesting.  Got a link to it?
21:11:54 <b1airo> https://docs.nvidia.com/grid/latest/grid-vgpu-user-guide/index.html
21:12:14 <b1airo> https://www.irccloud.com/pastebin/tGKYpyzo/
21:13:01 <b1airo> might be some devil in the "ifs" though
21:14:10 <oneswig> NVlink it says - I was hoping for PCI for generality.
21:14:49 <b1airo> yeah, there's that too
21:14:57 <martial> sorry to be late
21:14:59 <oneswig> Progress of sorts.
21:15:03 <oneswig> Hi martial
21:15:06 <oneswig> #chair martial
21:15:07 <openstack> Current chairs: b1airo martial oneswig
21:15:55 <oneswig> What's new with you martial?
21:16:38 <martial> not much
21:16:52 <martial> been fighting Tensorflow compilation issues lately :)
21:17:43 <martial> ie fun times
21:18:05 <martial> How is the meeting?
21:18:35 <oneswig> I don't think an agenda was posted so it's pretty quiet :-)
21:19:01 <martial> ah well :)
21:19:06 <oneswig> martial: I saw Mike has been active on Kolla-Ansible Ceph this last week
21:19:53 <martial> indeed, we are trying to design our core installation scripts
21:20:14 <oneswig> Somewhat interesting Next Platform discussion on Ceph usage at Sandia - https://www.youtube.com/watch?v=BEfZ3FyN0IQ&feature=youtu.be&t=1118
21:21:28 <oneswig> martial: watch out, I believe the long-term plan for Kolla-Ansible is to use Ceph-Ansible or CephAdm rather than reinvent that work.
21:22:05 <martial> will pass along the information
21:22:40 <oneswig> eg the warning here: https://docs.openstack.org/kolla-ansible/train/reference/storage/ceph-guide.html
21:24:05 <b1airo> urgh - liberal use of red warning boxes on that page
21:24:27 <b1airo> still, external looks eassy enough
21:24:35 <martial> Thank you
21:24:54 <martial> shared it with him (now just a matter for him to see it :) )
21:24:59 <b1airo> i'm afk for 5 to boost caffeine levels, gonna be a long day
21:25:14 <martial> Caffeine power :)
21:25:53 <oneswig> how was HPCW, did you participate?
21:26:38 <martial> I listened in to some of the conversations
21:27:03 <martial> but I did not present this year
21:27:08 <martial> it was good and busy
21:27:18 <martial> the videos are on you tube already
21:27:34 <martial> and there were quiet a few conversations on slack
21:27:44 <martial> let me find the link
21:27:55 <oneswig> I wonder - what counts for busy with online workshops?
21:28:18 <martial> #link https://www.youtube.com/playlist?list=PLfE3_wJGw9KTx8t6byn5bCWpk4L5bRORY
21:28:25 <oneswig> I'm wondering how ISC will go next week
21:29:28 <oneswig> Looks like Christian did a lot of legwork to get all those videos done
21:29:42 <martial> I know Christian posted a number of views ... looking for it
21:32:46 <martial> I can not find it (lost in all the slack messages that day) but I remember something in the 70 concurrent viewers
21:33:22 <oneswig> That's good going I'd say.
21:34:15 <martial> it was very interesting
21:34:22 <martial> (wish I could have been there the entire time)
21:35:11 <martial> Good conversation on Saurus, Buildah and other topics (as last year actually :) )
21:36:23 <oneswig> Not heard of Saurus
21:36:58 <b1airo> https://sarus.readthedocs.io/en/stable/
21:37:38 <oneswig> lmgtfy :-)
21:37:53 <b1airo> it's CSCS's container engine
21:38:08 <b1airo> still haven't worked out why they need their own though
21:39:41 <oneswig> I remember one of the authors was doing a lot with Shifter a couple of years ago.
21:40:00 <martial> they had a good slide deck that explained the use case (looking for it)
21:41:19 <martial> it was not posted in the channel it looks like but there is a similar one in the HPC container google drive
21:41:21 <martial> let me check
21:43:20 <martial> found a PDF
21:44:04 <oneswig> martial: What's going on with Singularity?  Does it still have good uptake?
21:45:12 <martial> Christian was running a few live polls,
21:46:26 <martial> 14 docker / 7 shifter / 10 singularity / 3 sarus / 5 charliecloud / 10 podman / 3 KataContainers / 6 LXC
21:46:42 <martial> so yes still very much used
21:46:49 <martial> keep in mind this was an HPC crowd
21:47:57 <martial> Image building was high on Dockerfile with Docker (10) with distant (3) singularity
21:49:10 <martial> Christian in particular had a good idea to add to the "machine" type conversation, see https://github.com/opencontainers/image-spec/pull/761
21:49:23 <oneswig> What a fascinating split between so many contenders.
21:50:05 <martial> podman keeps getting higher in popularity
21:50:59 <martial> easy to understand too .. their tagline is alias docker=podman
21:51:24 <b1airo> i guess as deployments get it "for free" with RHEL/CENTOS 8 it will continue to get greater uptake
21:53:40 <martial> Sarus was "push to docker" "deploy to HPC" without any job
21:54:01 <martial> the link I have was too permissive so I found another PDF
21:54:04 <martial> #link http://www.hpcadvisorycouncil.com/events/2019/swiss-workshop/pdf/030419/K_Mariotti_CSCS_SARUS_OCI_ContainerRuntime_04032019.pdf
21:55:26 <martial> no news on Berlin?
21:57:21 <oneswig> Not that I've heard.  At the end of this month there is an OpenDev online conference on infrastructure scaling. Should be interesting
21:57:34 <martial> got a link?
21:58:02 <martial> #link https://www.openstack.org/events/opendev-2020/opendev-schedule
21:58:29 <oneswig> thanks - it's a lousy name because in browser history it hits on so many other things
21:58:51 <martial> so that is the one?
21:59:13 <oneswig> yes - I'm going to participate in the Tools session.
21:59:41 <martial> cool!
22:00:03 <oneswig> We are nearly out of time...
22:00:10 <oneswig> final comments?
22:00:21 <oneswig> thanks for the update on HPCW martial
22:00:33 <martial> happy to do so
22:00:41 <oneswig> #endmeeting