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* Date: Tuesday, May 24, 2022 @ 18:00 UTC | |||
* Location: https://meet.jit.si/octave-dev | |||
== Today's topics == | |||
* The potential use of Jitter and other virtual machines to speed up Octave execution, by Mohammad-Reza Nabipoor. | |||
** [https://octave.discourse.group/t/vm-for-octave-interpreter/2686 Discourse thread] | |||
** '''Unfortunately the speaker didn't show. jwe presented his ideas on VM and linear evaluation instead.''' | |||
* Drop "native" MXE Octave builders from buildbot configuration? | |||
** [https://octave.discourse.group/t/drop-native-builds-from-mxe-octave/2689 Discourse thread] | |||
*** Drop the builder from the buildbot configuration. | |||
*** Don't '''actively''' remove support for native builds from MXE Octave. But don't spend too much time maintaining it. Maybe at some later time, someone will step up to maintain it again. | |||
* Timeframe for Octave 7.2 release? | |||
** Important fixes (among others possible loss of .m file content on exit) | |||
** still unresolved: bug {{bug|62308}} use of octave::feval causes error: function '...' not found | |||
*** '''jwe will create a RC within two weeks''' | |||
* Update on Fosshost? | |||
** Buildbot worker on ARM hardware? | |||
*** No, see below | |||
*** Maybe, at a later point ask again for access to their AARCH64 server farm. | |||
** Possible to run a Mercurial server? With mirror(?), forks for GSoC students(?), ... | |||
*** Possible, needs setup 😇 | |||
*** For the time being, GSoC students should use a public service for their fork. | |||
** Short summary: Octave got one x86_64 server instance '''(2 cores, 4 GB memory, 500 GB HDD)''', useful as webserver probably?! | |||
<syntaxhighlight lang="bash> | |||
$ uname -a | |||
Linux fosshost 5.10.0-14-amd64 #1 SMP Debian 5.10.113-1 (2022-04-29) x86_64 GNU/Linux | |||
$ free -h | |||
total | |||
Mem: 3.8Gi | |||
$ lsblk | |||
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT | |||
sda 8:0 0 64G 0 disk | |||
├─sda1 8:1 0 63G 0 part / | |||
├─sda2 8:2 0 1K 0 part | |||
└─sda5 8:5 0 975M 0 part [SWAP] | |||
sdb 8:16 0 500G 0 disk | |||
sr0 11:0 1 378M 0 rom | |||
$ cat /proc/cpuinfo # two cores | |||
processor : 0 | |||
vendor_id : GenuineIntel | |||
cpu family : 15 | |||
model : 6 | |||
model name : Common KVM processor | |||
stepping : 1 | |||
microcode : 0x1 | |||
cpu MHz : 2400.084 | |||
cache size : 16384 KB | |||
physical id : 0 | |||
siblings : 2 | |||
core id : 0 | |||
cpu cores : 2 | |||
apicid : 0 | |||
initial apicid : 0 | |||
fpu : yes | |||
fpu_exception : yes | |||
cpuid level : 13 | |||
wp : yes | |||
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx lm constant_tsc nopl xtopology cpuid tsc_known_freq pni cx16 x2apic hypervisor lahf_lm cpuid_fault pti | |||
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit | |||
bogomips : 4800.16 | |||
clflush size : 64 | |||
cache_alignment : 128 | |||
address sizes : 40 bits physical, 48 bits virtual | |||
power management: | |||
</syntaxhighlight> | |||
:* Access by Arun, jwe, Kai, anyone with time and interest (or '''ideas what to do with it''') is welcome to help with the setup. | |||
:** Kai thinks this could be a webserver, however, what is the benefit to the current situation? 😓 | |||
:** See jwe's note here about potential use cases. [https://octave.discourse.group/t/current-recommendation-for-mercurial-hosting/2726/5 Moving hg and buildbot from Digital Ocean to Fosshost] | |||
:'''Kai will start moving the wiki to FossHost; all web-services should move there eventually''' | |||
* State of <code>__unimplemented__</code> | |||
** https://octave.discourse.group/t/implementing-unimplemented-m/2706/5 | |||
** Need clarity about the purpose: Helping search vs. Motivate to join Octave community. | |||
* How to implement a classdef class in C++ code only? | |||
** Why is the classdef implementation so complicated? Does it need to be? | |||
** @carandraug and @Maged will look into this for their GSoC project. Pointers welcome. | |||
** Maybe, some kind of documentation could be a result of the GSoC project. | |||
== Previous topics == | |||
* Meet and greet 5 minutes before meeting (audio testing). | |||
* Performance over time (Arun, Rik) | |||
** [https://octave.discourse.group/t/a-small-benchmark-for-interpreted-code-for-three-versions-of-octave/2531/4 Discourse thread for background] | |||
** Analysis and profiling of existing code base -- share and solicit experiences. | |||
** Performance benchmark to track speed over time as part of CI? (Not as part of CI for now, can be done separately, Arun will share progress updates on Discourse) | |||
* GSoC: call for mentors (Nir/Kai) | |||
** Interesting mentors should write to Nir or Kai before: 2022-05-06, ideally before. | |||
** Final deadline (to the sponsor) is May 12. | |||
* Octave 7.1.0 post-release remarks: | |||
** Overall time from merge of default to stable (2021-11-24) until release of version 7.1.0 (2022-04-06): approx. 4 months | |||
*** Why does it take us so long for the last couple of releases? | |||
*** Should we start the release process earlier? | |||
** A couple of bugs have been solved on the stable branch since the release. Last time we released 6.2.0 pretty early after 6.1.0. Should we do the same again? | |||
** Regressions that should probably be solved before a potential 7.2.0: | |||
*** bug {{bug|62308}}: use of octave::feval causes error: function '...' not found | |||
*** patch {{patch|10200}}: wrong axes using stairs in subplot --- This affects a lot more plotting functions besides stairs. They always plot into <code>gca</code> and ignore the input axes handle. | |||
*** others? | |||
* Wikipedia updates - minor updates needed to bring up to date. | |||
** see https://octave.discourse.group/t/octave-wikipedia-pages/2600/1 | |||
== See also == | |||
* Next meeting: [[Online Developer Meeting (2022-06-28)]] | |||
* Last meeting: [[Online Developer Meeting (2022-04-26)]] | |||
[[Category:2022]] | |||
[[Category:Meetings]] | |||