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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<heller>
So, we have a huge problem with TLS...
<zao>
Oh?
<heller>
Consider: thread_local static int i; int *ip=&i; suspend (); cout << ip;
<zao>
Ah, I'm snowed in on Transport Layer Security :)
<heller>
When this task gets stolen and executed on a different os thread, what will happen ;)
<heller>
Ha
<heller>
The problem is that there's no way that ip will be updated to the correct thread local position
<heller>
It's like passing the thread local pointer directly to a different thread
<zao>
"don't do that"
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<heller>
zao: severe restriction if you ask me. And also very subtle bugs
<zao>
Do we have any FLS-like thing?
<zao>
TLS-but-for-HPX-thingies?
<heller>
I was looking into this recently
<zao>
Or is that just "put it on the stack, you dummy"?
<heller>
Something something with the segment registers
<github>
[hpx] msimberg closed pull request #3239: Changing std::rand() to a better inbuilt PRNG generator. (master...master) https://git.io/vxUQt
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<github>
[hpx] hkaiser created replace_constexpr (+1 new commit): https://git.io/vxVxN
<github>
hpx/replace_constexpr 51199bb Hartmut Kaiser: Replace constexpr with HPX_CXX14_CONSTEXPR and HPX_CONSTEXPR...
<github>
[hpx] hkaiser opened pull request #3268: Replace constexpr with HPX_CXX14_CONSTEXPR and HPX_CONSTEXPR (master...replace_constexpr) https://git.io/vxVxh
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<github>
[hpx] msimberg created msimberg-patch-1 (+1 new commit): https://git.io/vxVhK
<github>
hpx/msimberg-patch-1 4634328 Mikael Simberg: Fix 0-sized allocation in block_allocator test
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<github>
[hpx] msimberg opened pull request #3269: Fix 0-sized allocation in block_allocator test (master...msimberg-patch-1) https://git.io/vxVjl