[ET Trac] [Einstein Toolkit] #1764: Error with compilation of HWLOC

[Einstein Toolkit]

#1764: Error with compilation of HWLOC
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  Reporter:  maxim.barkov@…         |       Owner:  eschnett           
      Type:  defect                 |      Status:  assigned           
  Priority:  blocker                |   Milestone:  ET_2015_05         
 Component:  EinsteinToolkit thorn  |     Version:  development version
Resolution:                         |    Keywords:  HWLOC              
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Comment (by eschnett):

 In this case, MPI should also be set to "build".

 We need to decide whether it is okay to ask for new packages to be
 installed on Ubuntu. Currently we do ask for packages, and if so, asking
 for hwloc-dev and numa-dev etc. should be fine. With these, hwloc is not
 broken any more; we just add -lnuma to the list of hwloc libraries.

 Alternatively, we say that no new package should be required. We then call
 the system "hwloc" broken, since hwloc-dev may not be present. We then
 need to make sure we don't use it, neither directly nor indirectly. Every
 Ubuntu package that may use hwloc then cannot be used. Thus we need to
 build MPI ourselves, and possibly also HDF5 if we cannot ensure that the
 system HDF5 is a serial one. Overall, I don't think this is a good idea
 for Ubuntu in general.

 Maybe we should have a "standalone.cfg" option list that does not expect
 anything from the system, but builds everything, unless we are really sure
 that a system library that we find is good. Given that libraries depend on
 each other, that's difficult to detect.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1764#comment:15>
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