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On Nov 24, 2013, at 3:03 PM, Jed Brown <jedbrown_at_[hidden]> wrote:
> Ralph Castain <rhc_at_[hidden]> writes:
>> Given that we have no idea what Homebrew uses, I don't know how we
>> could clarify/respond.
Ralph, it is pretty easy to know what Homebrew uses, c.f. https://github.com/mxcl/homebrew/blob/master/Library/Formula/open-mpi.rb (sorry if you meant something else).
> Pierre provided a link to MacPorts saying that all of the following
> options were needed to properly enable threads.
> --enable-event-thread-support --enable-opal-multi-threads --enable-orte-progress-threads --enable-mpi-thread-multiple
> If that is indeed the case, and if passing some subset of these options
> results in deadlock, it's not exactly user-friendly.
> Maybe --enable-mpi-thread-multiple is enough, in which case MacPorts is
> doing something needlessly complicated and Pierre's link was a red
That is very likely, though on the other hand, Homebrew is doing something pretty straightforward. I just wanted a quick and easy fix back when I had the same hanging issue, but there should be a better explanation if --enable-mpi-thread-multiple is indeed enough.
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