Package: openmpi-checkpoint Version: 1.4.1-1 Severity: important
openmpi-checkpoint does not currently depend on blcr-util. However, ompi-restart will segfault unless blcr-util (upstream bug maybe, I reported to the OpenMPI users mailing list, still got no reply). Although you can take checkpoints without blcr-util installed, restoring a checkpoint with ompi-restart fails. Due to bug #572021 that I also reported, you'll need to compile OpenMPI from sources to verify this bug (or fix #572021 first): 1) Install openmpi-bin, openmpi-checkpoint (or compile OpenMPI from source, if #572021 is not fixed yet), and make sure you don't have brcl-util installed. 2) Compile a simple MPI app (the typical "ring" app will do it). 3) Run it like this, for example: modprobe blcr mpirun -np 4 -am ft-enable-cr ./ring 4) Take a checkpoint, for example: ompi-checkpoint --term <PID OF THE MPIRUN PROCESS> 5) Try to restore the checkpoint: ompi-restart ompi-global-snapshot-<PID>.ckpt The expected result would be having the ring app complete. Instead ompi-restart (or one of its children, I'm not sure) segfaults. Now install the package brcl-util and repeat this procedure. You'll see that ompi-restart does not segfault. This indicates that openmpi-checkpoint should depend on blcr-util. Proposed fix: Add blcr-util to Depends. Note that brcl-util provides binaries like cr_restore, cr_checkpoint, etc. One would think ompi-checkpoint/ompi-restart uses only libcr directly, but that doesn't seem to be the case for ompi-restart. -- System Information: Debian Release: squeeze/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 2.6.32-2-amd64 (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages openmpi-checkpoint depends on: ii libc6 2.10.2-6 Embedded GNU C Library: Shared lib ii libcr0 0.8.2-9 Libraries to Checkpoint and Restar ii libopenmpi1.3 1.4.1-1 high performance message passing l ii openmpi-bin 1.4.1-1 high performance message passing l openmpi-checkpoint recommends no packages. openmpi-checkpoint suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
