Bug#1100880: mpich: MPII_init_gpu ... gpu_init failed

[Drew Parsons]

Package: mpich
Version: 4.3.0-2
Severity: serious
Justification: debci
Control: affects -1 src:armci-mpi

mpich 4.3 is doing something different with gpu support,
that is causing tests to fail, both mpich's own tests (on amd64 etc)
and build tests in other packages like armci-mpi.

For instance, mpich's amd64 tests at
https://ci.debian.net/packages/m/mpich/unstable/amd64/58761388/
show

 81s autopkgtest [07:37:03]: test hello4: [-----------------------
 82s Abort(672262671): Fatal error in internal_Init: Other MPI error, error stack:
 82s internal_Init(70)....: MPI_Init(argc=(nil), argv=(nil)) failed
 82s MPII_Init_thread(199): 
 82s MPII_init_gpu(51)....:  gpu_init failed


A fresh armci-mpi build sees the same error "gpu_init failed" in
armci-mpi tests.



-- System Information:
Debian Release: trixie/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.12.19-amd64 (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages mpich depends on:
ii  hwloc          2.12.0-1
ii  libamdhip64-5  5.7.1-5+b1
ii  libc6          2.41-6
ii  libhwloc15     2.12.0-1
ii  libmpich12     4.3.0-2
ii  libslurm42t64  24.11.3-2
ii  perl           5.40.1-2

Versions of packages mpich recommends:
ii  libmpich-dev  4.3.0-2

Versions of packages mpich suggests:
ii  mpich-doc  4.3.0-2

-- no debconf information