<heller1>
Yorlik: i see. so in this case, the "commit" operation is made explicit
<heller1>
Yorlik: (assuming that you have a mental model of atomic operations that undergo a modify/commit/rollback mechanism)
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<gonidelis>
Hello @channel. First of all I would like to thank you in my turn for all your support. You have proven to be a really interesting and helping group. I would also like to express my gratitude for trusting and accepting me for the Summer Period to work with you. I promise I will do my best. Is there any place where we (summer students) could talk
<gonidelis>
specifics with the mentors in order not to spam on this very fine channel?
<zao>
gonidelis: Welcome!
<gonidelis>
zao Thank you!!!
<heller1>
gonidelis: hey there
<heller1>
gonidelis: this channel is just fine. We want to setup a zoom call with you however in the next few days
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<Yorlik>
heller1: I do think, that this datastructure has the potential to be used in many different ways, could be implemented as template parameters: lock-free / mutable vs. immutable (w. lock-free under the hood for said operations). Rollback could probably be orthogonal to that.
<gonidelis>
heller1 Oh ok I get it. Thank you. I am looking forward to the meeting... :D
<zao>
GSoC is nice, livens up the channel.
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<heller1>
Yorlik: yt?
<Yorlik>
heller1: I'm here now.
<Yorlik>
Just was in the PC shop an ordered an AMD 3900 based machine. Fed up with the the compile wait. :)
<zao>
Welcome to team Red.
<Yorlik>
I'll keep around my Trusty old 4790k though ...
<Yorlik>
64 GB memory will also allow some virtual clustering
<Yorlik>
zao: I guess technically I'm team purple now :)
<hkaiser>
lol
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<hkaiser>
nikunj: that was an angry GSoC student yesterday - what did you do to him?
<diehlpk_work>
hkaiser, Abishek was just angry becuase he was not accepted
<hkaiser>
I think I even told him to select a different project to avoid being outsmarted
<diehlpk_work>
He was angry because we selected a friend of Nikunj and assumed that we just did it because he knows Nikunj
<nikunj>
hkaiser: I didn't do anything :/
<diehlpk_work>
His proposals was much better, but we all supported Kale because of whatever reason
<nikunj>
Fwiw, I helped everyone that came on irc to the best I could. That includes Abhishek as well.
<hkaiser>
nikunj: sure
<K-ballo>
nikunj: obviously, you shouldn't have friends
<weilewei>
lol
<gonidelis>
is there any way to prevent such behavior from the channel? Sth like ban from administration or sth?
<heller1>
Yorlik: do you have that trace with the memory leak still handy?
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<Yorlik>
I would have to create a new one I think - let me check
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<Yorlik>
heller1: I can make a new one if you want to look into it - the old one is gone.
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<heller1>
That would be cool
<jbjnr>
nikunj: did you finish your work on the stencil codes and simd stuff?
<nikunj>
jbjnr: yes
<nikunj>
Finalizing my report these days
<jbjnr>
great. look forward to seeing it
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<nikunj>
jbjnr: i will upload the results to arxiv. Unfortunately it's not novel to get a workshop paper :/
<hkaiser>
nikunj: you could try to get it working with hpx algorithms and a datapar execution policy ;-)
<nikunj>
Is that a new execution policy?
<nikunj>
And which hpx algorithm?
<nikunj>
I use parallel_for_loop already
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<Yorlik>
heller1: That specific leak seems to be gone in the moment, probably it was realted to that error with the lock checking in debug mode.
<Yorlik>
There are some other leaks not related to hpx.
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<Yorlik>
I suggest, when the big error is fixed, I revisit everything and see if there are remaining leaks
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<Yorlik>
There are still leaks going through hpx though - I wonder if it would be premature to visit them right now
<Yorlik>
I htink I need to brush my code more
<diehlpk_work>
hkaiser, operation bell meeting
<diehlpk_work>
Will you join?
<diehlpk_work>
An Optimum Tea Fermentation Detection Model Based on Deep Convolutional Neural Networks
<diehlpk_work>
G Kimutai, A Ngenzi, RN Said, A Kiprop, A Förster - Data, 2020
<diehlpk_work>
Our first Phylanx citation
<Yorlik>
join #valve
<Yorlik>
woops
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<gonidelis>
Are you guys have some sort of way to log in at the IRC channel automatically without filling name and channel id? Also the usernames that end with '[m]' are users from their mobile phones?
<jbjnr>
we are using some truly awful thing called matrix/riot that addm to our names and takes 30 seconds to post every comment.
<jbjnr>
`/rant off`
<gonidelis>
Is there any way I can keep my username stored and not have to reenter it every time? I mean, what if someone else enters with your names?
<heller1>
Yorlik: ok, I'm really interested. I'm running into an asan segfault at shutdown when it wants to print the leaks...
<heller1>
gonidelis: nickserv
<jbjnr>
nikunj: the comment "great. look forward to seeing it" that just appeared, was sent by me about an hour ago, it just appeared in the chat now!
<Yorlik>
heller1: I'm using a trial version of deleaker in the moment - I might just pay for a private license later or use vld - I still have to evaluate the free versions and how good they are (on windos)
<gonidelis>
'nickserv'?
<jbjnr>
The mirroring between HPX and #stellar in this riot thingy is messing me up.
<Yorlik>
They started adding ASAN support, but in the moment it's 32 bit only - whish sucks, but hopefully that will change
<nikunj>
jbjnr: woah. That was ages ago
<jbjnr>
I'm having trouble with tis irc stuff. this riot/matrix interface just doesn't seem to work. I gave up for a few weeks, but it thought I was still logged in and I missed messages
<jbjnr>
I don't know if I should post to #stellar or HPX,
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<nikunj>
jbjnr: try using hexchat?
<nikunj>
Have always worked nicely for me
* Yorlik
uses hexchat
<heller1>
biddisco: works for me usually
<jbjnr>
nikunj: I am trying to avoid having too many application windows ope, so went for this riot thingy cos it is web browser based and everyone said it was great.
<Yorlik>
Discord FTW (#it_is_2020) ;)
<nikunj>
I'd love to see stellar on discord as well
<jbjnr>
nikunj: and I wanted somethig that would record history when I was shut down. I think hexchat doesn't pickup old messages ...
<nikunj>
Or everything on slack
<nikunj>
jbjnr: hexchat does log messages as long as it is open. So if you are not logged in with Hexchat, it will not log those messages.
<Yorlik>
Slack or Discord, I'd agree to that.
<nikunj>
Btw if you're a phone person, you can install revolution irc.
<nikunj>
I'm always logged onto stellar through phone. nikunj is through revolution irc and nikunj97 through laptop using hexchat.
<gonidelis>
could you tell me who is Auriane Reverdell ? He is one of my two mentors...
<gonidelis>
he or she*
<jbjnr>
She works at CSCS and is one of our HPX team (we are 3 people)
<gonidelis>
You mean you are 3 people that work at HPX from CSCS?
<hkaiser>
gonidelis: Auriane's nick here is rori
<gonidelis>
perfect... thank you!
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<jbjnr>
gonidelis: yes. There's me (biddisco on github), Mikalel (@ms or simbergm) and Aurianne/Rori. We are developing HPX, but there are others who work on applications that are "using" hpx, when they have problems, we do our best to fix them.
<jbjnr>
^Mikael not Mikalal
<gonidelis>
That's great! Thank you
<gonidelis>
I like learning about team's members relations
<jbjnr>
Currently we have people developing linear algebra libraries using hpx, n-body simulations (proof of concept), potentially (including the work that weilewei is doing at LSU) monte carlo material structure simulations. etc etc
<weilewei>
Hi there :)
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<hkaiser>
ms[m]: yt?
<hkaiser>
nikunj: 'which algorithm'? let's start with for_each or copy
<hkaiser>
also datapar is an execution policy from the parallelism TS V2
<hkaiser>
not sure if it's still called datapar, you'll figure it out
<hkaiser>
;-)
<nikunj>
hkaiser: I don't use copy. Will have to look at datapar though
<hkaiser>
what algorithm do you use?
<hkaiser>
nikunj: ?
<nikunj>
I use the tactic you have in stencil
<hkaiser>
also, we do have some support for this, but built around VC
<nikunj>
Where you don't swap
<nikunj>
Also I use fill
<nikunj>
Also I need to make sure if I use hpx algorithms, they work with nsimd
<heller1>
hkaiser: do you remember which global had the memory leak in Yorlik's trace?
<zao>
gonidelis: I’m Lars Viklund, HPC sysadmin at Umeå University, and I do nothing at all with HPX but keep these people entertained :)
<gonidelis>
'=D '=D Actually you have answered lots of my questions so you are one of the top mentors as far as I am concerned
<hkaiser>
heller1: some global in the C runtime system
<heller1>
ok
<gonidelis>
I have literally friends working on LSU (physics department), Sweden (Lund - biomedical engineering) and ETH (some PHD CS guy). The world is so smal...
<heller1>
and surely not inside HPX?
<hkaiser>
heller1: afair no
<heller1>
hmm, what a bummer ... the leak sanitizer is segfaulting when it is trying to report the leaks...
<heller1>
so I am guessing that this is something inside of HPX
<heller1>
but I can't debug this...
<Yorlik>
heller1: I will get this reproduced, since I know how it happened - I'm juts busy with this help my codev needs right now.
<heller1>
sure
<heller1>
no worries
<heller1>
Yorlik: which jemalloc version were you using?
<Yorlik>
Latest
<Yorlik>
Latest tagged to be precise
<Yorlik>
But when I investigated the leaks I had it off
<heller1>
ok
<heller1>
it looks like it is trying to process a potentially leaked thing from a TLS
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