Specifically, Nathan is referring to:
https://www.open-mpi.org/nightly/v3.0.x/
> On Mar 9, 2018, at 12:51 PM, Nathan Hjelm <[email protected]> wrote:
>
> Fixed in master and I'm the 3.0.x branch. Try the nightly tarball.
>
> On Mar 9, 2018, at 10:01 AM, Alan Wild <[email protected]> wrote:
>
>> I’ve been running the OSU micro benchmarks (
>> http://mvapich.cse.ohio-state.edu/benchmarks/ ). on my various MPI
>> installations. One test that has been consistently failing is osu_put_bibw
>> when compiled with either openmpi 3.0.0 or openmpi 3.0.1rc3 when these
>> builds have also linked in the Mellanox mxm, hcoll, and SHaRP libraries AND
>> when running this two rank test across two nodes communicating with EDR
>> Infiniband.
>>
>> Fortunately this failure was true for both optimized and debug builds of
>> openmpi.
>>
>> Stepping into the code with Allinea DDT I think I found the issue...
>>
>> MPI_Win_post is ultimately calling ompi_osc_rdma_post_atomic() and on line
>> 245 there’s an if statement that reads:
>>
>> If (OPAL_UNLIKELY(OMPI_SUCCESS != ret)) {
>> return OMPI_ERR_OUT_OF_RESOURCE;
>> }
>>
>> (Sorry can’t easily cut and paste the code... my work PC can’t get to my
>> personal email so I have to post this from an iPad).
>>
>> Anyway, if you look at the proceeding ~16 lines of code... “ret” is never
>> initialized or assigned to in any way... (as far as I can tell). I’m not
>> completely familiar with the all the macros used, but it doesn’t appear that
>> any of them are assigning to “ret”. Surprised this isn’t causing more chaos.
>>
>> If I’m “right”.. is the right thing just to initialize ret to OMPI_SUCCESS
>> or perhaps should this condition just come out?
>>
>> Thoughts?
>>
>> -Alan
>> [email protected]
>> --
>> [email protected] http://humbleville.blogspot.com
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Jeff Squyres
[email protected]
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