[mvapich-discuss] failed to compile mvapich2 with upstream hwloc-2.2.0

[Honggang LI]

On Mon, Jun 08, 2020 at 01:32:35PM +0000, Subramoni, Hari wrote:
> Hi, Honggang.
> 
> Based on feedback from the HWLoc team, we had updated the version of HWLoc MVAPICH2 uses from 1.11.13 to 2.2.0 (git tag hwloc-2.2.0). The 2.* series and the 1.* series are not compatible with each other. Thus, the current release of MVAPICH2 only supports the 2.2 series.
> 
> The version of hwloc in [1] is from the MPICH team and probably has dependencies with the launcher. The version of hwloc in [2] is what we use and keep updating periodically. I checked that we do not use HWLOC_MEMBIND_REPLICATE in our version of HWLoc code. The version in [1] has it, but we have not hit any errors because of it.
> 
> I am surprised that you are hitting this error since we were able to use the included version of HWLoc without issues. Can you let me know how you are trying to build it? What is the use case you are trying where you want to build MVAPICH2 against a different hwloc version?

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