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Re: openmpi warning "unable to open debugger attach fifo"

Am 27.01.2020 um 22:28 schrieb Ken Brown:
On 1/27/2020 1:49 PM, Ken Brown wrote:
On 1/27/2020 11:41 AM, Satish Balay wrote:

On using openmpi from cygwin - I'm getting the following warning. Any idea how to avoid this?

balay@ps5 ~
$ /usr/bin/mpiexec -n 1 hostname
[ps5:00491] [[23611,0],0] unable to open debugger attach fifo

The attempt to open a FIFO in the source file orte/orted/orted_submit.c:2862 is
failing due to a Cygwin bug.  I think I see how to fix it.  Stay tuned.

Sorry, I spoke too soon and was misinterpreting some code I was reading.  I
don't see a Cygwin bug after all.  Moreover, if I run your command under gdb, I
don't get an error.


I will look if the release candidate for 3.1.6 has still that issue.
3.1.5 had another larger warning that I silenced and that was due
to an upstream bug that has been solved.
This warning passed below my radar after I solved the bigger one.

Unfortunately OpenMPI takes age to build so do not expect any
too early..


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