Re: [Boost-users] [EXTERNAL] bjam hangs on select (in develop branch)

Subject: Re: [Boost-users] [EXTERNAL] bjam hangs on select (in develop branch)
From: Alain Miniussi (alain.miniussi_at_[hidden])
Date: 2014-10-24 08:39:44

Sorry, I probably screw up something with the last test, please ignore 
the minimized code.

On 24/10/2014 12:08, Alain Miniussi wrote:
> Hi,
>
> I don't know if it can help, but I attached a minimal (ok, let say 
> small) example that reproduces the problem without the mpi test nor 
> boost code.
> It's basically a minimized ~100loc version of bjam.
> I sent it to intel so they can investigate, since mpiexec.hydra might 
> be part of the problem. Although I think bjam should be able to deal 
> with it since the mpi test passes on the command line.
>
> Alain
>
> On 21/10/2014 15:56, Belcourt, Kenneth wrote:
>> On Oct 21, 2014, at 6:35 AM, Alain Miniussi <alain.miniussi_at_oca.eu> 
>> wrote:
>>
>>> Sorry, the problem is still here:
>>> 6817 alainm    20   0 S  0.0   0:01.74  4517 b2
>>> 6870 alainm    20   0 T  0.0   0:00.00  6817 sh
>>> 6871 alainm    20   0 T  0.0   0:00.00  6870 mpirun
>>> 6876 alainm    20   0 Z  0.0   0:00.00  6871 mpiexec.hydra <defunct>
>>>
>>> bottom of b2 strace:
>>>
>>> lseek(4, 0, SEEK_CUR)                   = -1 ESPIPE (Illegal seek)
>>> rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0
>>> select(5, [4], NULL, NULL, NULL
>> Okay, that’s helpful. Let me try a couple of other things. Thanks Alain.
>>
>> — Noel
>>
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-- 
---
Alain