FWIW, we have had verbal agreement in the past that the v1.8 series was the 
last one to contain MX support.  I think it would be fine for all MX-related 
components to disappear from v1.10.

Don't forget that Myricom as an HPC company no longer exists.


> On Aug 24, 2015, at 2:34 PM, Paul Hargrove <phhargr...@lbl.gov> wrote:
> 
> 
> On Mon, Aug 24, 2015 at 10:52 AM, Paul Hargrove <phhargr...@lbl.gov> wrote:
> Thus if this newly reported problem is (as I am going to guess) in 
> config/ompi_check_mx.m4 then it may go unfixed.
> You say you and I are the only ones to care, and I think we both care for 
> reasons related to software quality rather than any desire to use MX.
> 
> I looked to see where the -rpath options are coming from.
> I am 95% certain that libtool is constructing them from the network-specific 
> .la files (such as libfabric.la).
> That is also the reason why libfabric gets linked by full path instead of a 
> "-l" option.
> 
> So, my conclusions:
> 
> 1. Since there is no libmyriexpress.la, one should either
>    1a.  add the MX libdir to LD_LIBRARY_PATH
>    1b.  use the wrapper-ldflags family of configure arguments to add an rpath
> 
> 2. There is *probably* no Open MPI bug here assuming the authors of MX 
> support assumed "1a".
> 
> In support of these conclusion, the following is quoted from the MX 
> installation instructions:
>         For Linux, FreeBSD and Solaris, add the MX library directory to the
>         system library search path. Otherwise, individual users will have to
>         either manage their LD_LIBRARY_PATH(_64) environment variable or link
>         their program with an "-rpath/-R" option for the dynamic linker to
>         locate the MX shared library.
> 
> So, I am actually wondering if Ralph's changes yesterday to "fix" 
> $(WRAPPER_EXTRA_LDFLAGS) might have been unnecessary.
> Instead, I think *removing* those [testname]_LDFLAGS lines may be the correct 
> solution - they were *empty* until rc6.
> 
> IMHO:  dropping MX support in 1.10 is probably wise given the lack of vendor 
> support .
> 
> -Paul
> 
> -- 
> Paul H. Hargrove                          phhargr...@lbl.gov
> Computer Languages & Systems Software (CLaSS) Group
> Computer Science Department               Tel: +1-510-495-2352
> Lawrence Berkeley National Laboratory     Fax: +1-510-486-6900
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-- 
Jeff Squyres
jsquy...@cisco.com
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