On Feb 2, 2020, at 2:17 AM, Marco Atzeri via devel <devel@lists.open-mpi.org> wrote: > > not a new issue as it was also in 3.1.5. what is causing the > last line of warning ? > And why a simple run should try to run a debugger ? > > $ mpirun -n 4 ./hello_c > ... > Hello, world, I am 3 of 4, (Open MPI v3.1.6rc2, package: Open MPI > Marco@LAPTOP-82F08ILC Distribution, ident: 3.1.6rc2, repo rev: v3.1.6rc2, Jan > 30, 2020, 125) > [LAPTOP-82F08ILC:00154] [[18244,0],0] unable to open debugger attach fifo > > this is a Cygwin 64 bit.
Can you get a stack trace for that, perchance? The function in question to trap is open_fifo() in orted_submit.c. This function can be called from 3 different places; it would be good to know in which of the 3 it is happening. Does Cygwin support mkfifo()? -- Jeff Squyres jsquy...@cisco.com
