aserio changed the topic of #ste||ar to: STE||AR: Systems Technology, Emergent Parallelism, and Algorithm Research | stellar.cct.lsu.edu | HPX: A cure for performance impaired parallel applications | github.com/STEllAR-GROUP/hpx | Buildbot: http://rostam.cct.lsu.edu/ | Log: http://irclog.cct.lsu.edu/
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<jbjnr_> heller_: daint went down today, so I can't run more tests. Might have seen a 1% or so increase in the smaller matrix blocks, but I'm hoping that there's more to come.
<heller_> jbjnr_: ok
<heller_> too bad, i was hoping for more :?
<jbjnr_> tried rebasing onto today's master, but many conflicts, I suspect that the thread_id changes are now merged to amster and I need to be very careful.
<jbjnr_> heller_: are you finished with those improvements, or still working on it?
<heller_> jbjnr_: still working on it
<jbjnr_> ok great.
<heller_> jbjnr_: have to postpone right now as I need to give a talk tonigh
<heller_> t
<heller_> and have to do my slides
<jbjnr_> no probs
<jbjnr_> and submit your thesis
<heller_> sure sure
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<github> [hpx] StellarBot pushed 1 new commit to gh-pages: https://git.io/vN6hR
<github> hpx/gh-pages 002f35e StellarBot: Updating docs
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<jbjnr_> heller_: ?
<jbjnr_> constexpr operator thread_data*() const
<jbjnr_> home/biddisco/src/hpx/hpx/runtime/threads/thread_id_type.hpp:79:19: error: ‘constexpr hpx::threads::thread_id_type::operator hpx::threads::thread_data*() const’ cannot be overloaded
<jbjnr_> constexpr operator thread_data*() const
<jbjnr_> ^oops
<K-ballo> the constexprs on that branch are messed up
<jbjnr_> k
<jbjnr_> It compiled this morning, but I wiped my build dir and tried something new, and now ...
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<jbjnr_> kisaacs: yt?
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<jbjnr_> that'd be a 'no' then
<hkaiser> jaafar: it's 6:20am for her
<hkaiser> jbjnr_: ^^
<hkaiser> or even 5:20
<jbjnr_> hkaiser: Am I right in thinking that she is the author of the trace viz tool?
<jbjnr_> I'd like a gsoc project looking at that
<hkaiser> yah sure, pls add that
<hkaiser> not sure if it's her tool, though
<jbjnr_> nor I, but her username matches. the ravel one, so I'm guessing
<hkaiser> nod
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<hkaiser> let's ask her later today
<jbjnr_> never seem to get her online. Should use email instead.
<hkaiser> jbjnr_: I'll talk to her today anyways, will poke her
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<jbjnr_> kisaacs: test - yt?
<jbjnr_> (expecting a no)
<github> [hpx] msimberg opened pull request #3127: Add `hpx::start` nullptr overloads (master...hpx-start-overloads) https://git.io/vNiCg
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<github> [hpx] msimberg opened pull request #3128: Make docbook dtd and xsl path names consistent (master...fix-docs-variables) https://git.io/vNiRK
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<hkaiser> heller_: yt?
<jbjnr_> anyone wanting a job, or wanting to forward links to friends wantring jobs https://apply.refline.ch/845721/5963/pub/1/index.html
<K-ballo> python bindings, nice
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<jbjnr_> K-ballo: it's not for everyone, but ...
* K-ballo was not mocking it
<K-ballo> I'd even consider it, depending on how permanent the position were, but it asks for degrees
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<github> [hpx] hkaiser pushed 1 new commit to master: https://git.io/vNiVP
<github> hpx/master 834eb49 Hartmut Kaiser: Fixing possible double free at shutdown
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<jbjnr_> hkaiser: I contacted kisaacs via email and have started the ball rolling.
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<heller_> hkaiser: what's up?
<jbjnr_> K-ballo: for you, they'd make an exception
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<hkaiser> heller_: comment wrt the thread overheads branch
<hkaiser> or rather a question
<heller_> ok
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<hkaiser> do I understand correctly that the changes inhibit telling the scheduler what thread to run next after the curren thtread terminates?
<heller_> it shouldn't
<hkaiser> why?
<heller_> I hope I didn't mess it up ;)
<hkaiser> you can still 'return' the next thread id while yielding, but not anymore while terminating
<heller_> ah, ok
<heller_> that's what you mean
<heller_> yes
<heller_> that wasn't ever used
<hkaiser> we don't use this ufnctionality, currently, so the question is do we want to support such a use case
<heller_> that's a good question
<hkaiser> is was theoretically possible before
<heller_> yup
<heller_> I am not sure if it is a valid use case...
<hkaiser> hmm, why not?
<hkaiser> you schedule a new thread and exit
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<heller_> create
<heller_> but yes
<heller_> that's the description of the feature, where is the usecase ;)
<hkaiser> sure, sure
<heller_> I couldn't identify a proper use case
<heller_> especially since the thread functions are seldomly used directly
<kisaacs> I'm running into abi problems I thought I had quashed. I can't install OTF2 on rostam with clang, so I am using gcc/6.4.0 with CXXFLAG=-std=c++11 but then it won't play nice with Ravel (given cmake compilers linked directly to the gcc/6.4.0 in /opt/mn). It all worked a month ago. Any ideas on what I'm missing/expertience with otf2 on rostam? Thanks.
<hkaiser> kisaacs: akheir is your friend here
<hkaiser> heller_: at least we have to keep in mind that this functionality is removed by the PR
<heller_> hkaiser: i have no problem adding that back... It just seemed unnecessary
<akheir> kisaacs: What did you use to compile Ravel?
<hkaiser> if it's not a problem to add back - I'd say do it, and I'm aware that we don't use it
<hkaiser> if for nothing else but symmetry
<akheir> kisaacs: And what seems to be problem compiling OTF with clang?
<kisaacs> akheir: There's a linking failure during make at otf2-marker, I set CC, CCX, CC_FOR_BUILD, and CXX_FOR_BUILD all to clang and have clang/5.0.0 loaded.
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<heller_> hkaiser: symmetry is a good point.
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<akheir> kisaacs: let me check it
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<kisaacs> By the way, I'm using a Phylanx from like 10 days ago, but just noticed that when I re-run the lra I get a different result each time. Is that supposed to happen?
<bibek> kisaacs: nope that should not happen
<bibek> kissacs: i am able to reproduce it, I will look into it
<bibek> kissacs: lra_csv is working fine for me
<bibek> the plain lra is producing different result each run
<kisaacs> Is there a sample CSV I should use for that?
<bibek> breast_cancer.csv should work
<bibek> its in the same directory
<kisaacs> thanks!
<bibek> did that work ?
<kisaacs> it's still running (srun -n 1)
<bibek> you may want to pass -t2 so that it uses only 2 threds , makes it faster for small runs
<bibek> ./lra_csv --data_csv=./../../source/examples/algorithms/breast_cancer.csv -t2
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<akheir> kisaacs: there is still some problem with my compilation
<akheir> kisaacs: I'm looking to it, I'll let you know
<kisaacs> thanks akheir!
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<kisaacs> bibek: Yeah it worked and thanks on the -t2, made the second run much faster.
<bibek> kissacs: nice
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