Re: [OMPI users] ARM/Allinea DDT

[Charles A Taylor]

Understood.  But since the OpenMPI versions in question are not listed as 
supported on the ARM/Allinea product page, I thought I’d ask if it is 
_supposed_ to work before bothering folks with details.

In the meantime, ARM/Allinea has responded so I’ll provide them with the 
details.  But, in short, DDT can’t seem to attach to the 3.0 processes/ranks 
and just hangs trying.  Using the same code, that doesn’t happen with OpenMPI 
1.10.2 nor IntelMPI 5.1.1.  This is under RHEL 7.4 and launching with srun 
under SLURM 16.05.11 (for those who want to know).

Thanks for the replies,

Charlie


> On Apr 11, 2018, at 3:15 PM, r...@open-mpi.org wrote:
> 
> You probably should provide a little more info here. I know the MPIR attach 
> was broken in the v2.x series, but we fixed that - could be something remains 
> broken in OMPI 3.x.
> 
> FWIW: I doubt it's an Allinea problem.
> 
>> On Apr 11, 2018, at 11:54 AM, Charles A Taylor  wrote:
>> 
>> 
>> Contacting ARM seems a bit difficult so I thought I would ask here.  We rely 
>> on DDT for debugging but it doesn’t work with OpenMPI 3.x and I can’t find 
>> anything about them having plans to support it.
>> 
>> Anyone know if ARM DDT has plans to support newer versions of OpenMPI?
>> 
>> Charlie Taylor
>> UF Research Computing
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Re: [OMPI users] ARM/Allinea DDT

[r...@open-mpi.org]

This inadvertently was sent directly to me, and Ryan asked if I could please 
post it on his behalf - he needs to get fully approved on the mailing list.

Ralph


> On Apr 11, 2018, at 1:19 PM, Ryan Hulguin  wrote:
> 
> Hello Charlie Taylor,
>  
> I have replied to your support ticket indicating that we do not claim to 
> fully support OpenMPI 3.0, since we are still running tests ourselves to 
> ensure everything works smoothly with DDT.
> However, we will work with you to help identify the problems you are 
> encountering, and to determine whether or not anything can be done at this 
> time.
> Please provide more detailed information in the support ticket you have open 
> with us so that we can be of further assistance.
>  
> Regards,
> Ryan Hulguin
>  
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> confidential and may also be privileged. If you are not the intended 
> recipient, please notify the sender immediately and do not disclose the 
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Re: [OMPI users] ARM/Allinea DDT

[r...@open-mpi.org]

You probably should provide a little more info here. I know the MPIR attach was 
broken in the v2.x series, but we fixed that - could be something remains 
broken in OMPI 3.x.

FWIW: I doubt it's an Allinea problem.

> On Apr 11, 2018, at 11:54 AM, Charles A Taylor  wrote:
> 
> 
> Contacting ARM seems a bit difficult so I thought I would ask here.  We rely 
> on DDT for debugging but it doesn’t work with OpenMPI 3.x and I can’t find 
> anything about them having plans to support it.
> 
> Anyone know if ARM DDT has plans to support newer versions of OpenMPI?
> 
> Charlie Taylor
> UF Research Computing
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> users@lists.open-mpi.org
> https://lists.open-mpi.org/mailman/listinfo/users

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[OMPI users] ARM/Allinea DDT

[Charles A Taylor]

Contacting ARM seems a bit difficult so I thought I would ask here.  We rely on 
DDT for debugging but it doesn’t work with OpenMPI 3.x and I can’t find 
anything about them having plans to support it.

Anyone know if ARM DDT has plans to support newer versions of OpenMPI?

Charlie Taylor
UF Research Computing
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