On 02/23/2017 02:49 PM, Tim Biedert wrote:
> Thanks for the hint.
> We're already getting deadlocks at 4 localities and we're not explicitly
> using any barriers.  Are there any internal barriers in HPX which might
> be affected by this just due to a high task count?

No. However, while attempting to fix #2516, I discovered something bad that
happens during parcel decoding.
The fix I came up with is in the following PR:
https://github.com/STEllAR-GROUP/hpx/pull/2518

This might also be the reason for the deadlock you are seeing. Could you
please try this patch
and see if that fixes your deadlocks?

> 
> Best,
> 
> Tim
> 
> 
> 
> On 02/22/2017 10:30 PM, Thomas Heller wrote:
>> If you are running with at least 256 localities (or are using
>> hpx::lcos::barrier with more than 256 participating threads), please
>> be aware
>> of:
>> https://github.com/STEllAR-GROUP/hpx/issues/2516
> 
> 
> 
> 
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> 


-- 
Thomas Heller
Friedrich-Alexander-Universität Erlangen-Nürnberg
Department Informatik - Lehrstuhl Rechnerarchitektur
Martensstr. 3
91058 Erlangen
Tel.: 09131/85-27018
Fax:  09131/85-27912
Email: [email protected]
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