hydra: --configfile option - related to issue 1542

[TomMelt]

I commented at the bottom of issue #1542. But I think it might not get picked up.

Feel free to close this if you don't want duplication, but the previous issue was closed as solved.

My comments on issues 1542 below

FWIW I am experiencing the same issue with --configfile in version:

$ mpichversion 
MPICH Version:      4.2.3
MPICH Release date: Wed Oct  2 09:35:21 AM CDT 2024
MPICH ABI:          16:3:4
MPICH Device:       ch4:ofi
MPICH configure:    --prefix=/software/spack/opt/spack/linux-ubuntu24.04-skylake/gcc-13.3.0/mpich-4.2.3-znn2tyjor4f43jtjwfshemtd4reor6de --disable-maintainer-mode --disable-silent-rules --enable-shared --with-pm=hydra --enable-romio --without-ibverbs --enable-wrapper-rpath=yes --with-yaksa=/software/spack/opt/spack/linux-ubuntu24.04-skylake/gcc-13.3.0/yaksa-0.3-2sgm4n4mh6ffoyi77oap2jvnhixl7mhp --without-ze --with-hwloc=/software/spack/opt/spack/linux-ubuntu22.04-x86_64_v3/gcc-11.4.0/hwloc-2.11.1-fwtuzgpmp2dy3udiekh6nwnbcld22kmk --enable-fortran --with-slurm=no --without-cuda --without-hip --with-device=ch4:ofi --with-libfabric=/software/spack/opt/spack/linux-ubuntu24.04-skylake/gcc-13.3.0/libfabric-1.22.0-dxsgzhbyeaygi6rqaqwx5wywf2gq424u --enable-libxml2 --with-datatype-engine=auto
MPICH CC:           /software/spack/lib/spack/env/gcc/gcc    -O2
MPICH CXX:          /software/spack/lib/spack/env/gcc/g++   -O2
MPICH F77:          /software/spack/lib/spack/env/gcc/gfortran   -O2
MPICH FC:           /software/spack/lib/spack/env/gcc/gfortran   -O2
MPICH features:     threadcomm

e.g.,

$ cat config
-n 1 echo "hi"
-n 2 echo "hello"
$ mpirun --configfile config
"hi" -n 2 echo "hello"

Whereas, if I add a colon : I get the correct behavior.

$ cat config2 
-n 1 echo "hi" :
-n 1 echo "hello"
$ mpirun --configfile config2
"hi"
"hello"

Should I open this as a separate issue?

[hzhou]

Yes, it is a known bug that we never got around to fix. I'll take a stab at it.