K-ballo 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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<pedro_barbosa[m]>
diehlpk_work: you there?
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<YourNick[m]>
Is there any reason for us not having `std::accumulate()`
<YourNick[m]>
?
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<ms[m]>
gonidelis[m]: accumulate must be sequential, we have reduce instead which is allowed to run in parallel
<YourNick[m]>
ms[m]: cool thanks!
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<YourNick[m]>
hkaiser: pm ;)
<YourNick[m]>
Does anyone sees my nick as "YourNick" ?
YourNick[m] is now known as NewNickname[m]
<bering[m]>
Nope.
<NewNickname[m]>
bering[m]: thanks
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<ms[m]>
hkaiser: should we still wait for adrian to respond?
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<hkaiser_>
ms[m]: probably not, let's send it out
<rachitt_shah[m]>
Just remembered, we wouldn't be needing the user feedback form at the moment, if I'm correct?
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<ms[m]>
rachitt_shah: well, it's not strictly required, but it certainly wouldn't hurt either
<rachitt_shah[m]>
<ms[m] "rachitt_shah: well, it's not str"> Let me float it then, I've ran the docs locally, I'll ping if I'm stuck
<ms[m]>
👍️
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<diehlpk_work>
pedro_barbosa[m], I am here now
<hkaiser>
NewNickname[m]: are you sure your laptop has really 16 cores? or is it 8 cores with hyper-threading?
<NewNickname[m]>
8 cores with hyper threading
<NewNickname[m]>
hkaiser why?
<hkaiser>
because that would make a big difference
<hkaiser>
if it was 8 cores with hyper-threading it would not make sense to scale out to 16 threads
<NewNickname[m]>
really?
<NewNickname[m]>
I didn't know that
<NewNickname[m]>
why?
<hkaiser>
because HTs are not real cores
<NewNickname[m]>
yeah I know... but don't they work like logical cores? I mean, do we expect the samer result from an 8core system without hyperthreading?
<hkaiser>
using the HTs usually slows things down, at least with HPX
<hkaiser>
if you need real 16 or more cores, do it on rostam
<NewNickname[m]>
wow
<NewNickname[m]>
yeah I certainly will
<NewNickname[m]>
this is only for me to be sure that things do scale
<hkaiser>
ok
<pedro_barbosa[m]>
diehlpk_work: , I was trying to convert this kernel launch cycle (GIST: https://gist.github.com/PADBarbosa/3d703ef121606f614c259239039e8443) to HPXCL and was trying to follow the suggestion you recommended a few days ago, but I'm not sure I understood it correctly