openmpi warning "unable to open debugger attach fifo"

Ken Brown
Mon Jan 27 18:49:00 GMT 2020

On 1/27/2020 11:41 AM, Satish Balay wrote:
> Hi,
> 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
> [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.


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