request is not correctly released, leading to assert in
> >> debug
> >>>> mode. This is because you avoid calling
> >> MCA_PML_BASE_RECV_REQUEST_FINI,
> >>>> fact that leaves the request in an ACTIVE state, condition
> >>
>>>>
>>>> I attached a second patch that fixes the issue above, and
>> implement a
>>>> similar optimization for the blocking send.
>>>>
>>>> Unfortunately, this is not enough. The mca_pml_ob1_send_inline
>>>>
end_inline optimization on the multithreaded
>case. All
>>> the others optimizations should be safe in all cases.
>>>
>>> George.
>>>
>>> On Jan 8, 2014, at 01:15 , Shamis, Pavel <sham...@ornl.gov>
&g
ization for the blocking send.
>> >>
>> >> Unfortunately, this is not enough. The mca_pml_ob1_send_inline
>> >> optimization is horribly wrong in a multithreaded case as it alter
>> the
>> >> send_sequence without storing it.
the
> send_sequence
> >> a deadlock will __definitively__ occur. I strongly suggest you turn
> off
> >> the mca_pml_ob1_send_inline optimization on the multithreaded case.
> All
> >> the others optimizations should be safe in all cases
e as it alter the
> >> send_sequence without storing it. If you create a gap in the
> >> send_sequence
> >> a deadlock will __definitively__ occur. I strongly suggest you turn off
> >> the mca_pml_ob1_send_inline optimization on the multithreaded case. All
>>
>>> Overall it looks good. It would be helpful to validate performance
>> numbers for other interconnects as well.
>>> -Pasha
>>>
>>>> -Original Message-
>>>> From: devel [mailto:devel-boun...@open-mpi.org] On Behalf Of N
elm
> >> Sent: Tuesday, January 07, 2014 6:45 PM
>>> To: Open MPI Developers List
>>> Subject: [OMPI devel] RFC: OB1 optimizations
>>>
>>> What: Push some ob1 optimizations to the trunk and 1.7.5.
>>>
>>&g
;> Sent: Tuesday, January 07, 2014 6:45 PM
>> To: Open MPI Developers List
>> Subject: [OMPI devel] RFC: OB1 optimizations
>>
>> What: Push some ob1 optimizations to the trunk and 1.7.5.
>>
>> What: This patch contains two optimizations:
>>
>>
Developers List
> Subject: [OMPI devel] RFC: OB1 optimizations
>
> What: Push some ob1 optimizations to the trunk and 1.7.5.
>
> What: This patch contains two optimizations:
>
> - Introduce a fast send path for blocking send calls. This path uses
> the btl sendi funct
What: Push some ob1 optimizations to the trunk and 1.7.5.
What: This patch contains two optimizations:
- Introduce a fast send path for blocking send calls. This path uses
the btl sendi function to put the data on the wire without the need
for setting up a send request. In the case of
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