tags 666110 +patch
thanks
On Thu, Mar 29, 2012 at 12:17:46AM +0200, Michael Banck wrote:
> Even if I just run /usr/bin/ompi-ps without arguments, it eats 100%
> cpu and spins at sched_yield() forever accordings to
> strace:
>
> socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 7
> setsockopt(7, SOL_TCP, TCP_NODELAY, [1], 4) = 0
> setsockopt(7, SOL_SOCKET, SO_SNDBUF, [131072], 4) = 0
> setsockopt(7, SOL_SOCKET, SO_RCVBUF, [131072], 4) = 0
> fcntl64(7, F_GETFL) = 0x2 (flags O_RDWR)
> fcntl64(7, F_SETFL, O_RDWR|O_NONBLOCK) = 0
> connect(7, {sa_family=AF_INET, sin_port=htons(37855),
> sin_addr=inet_addr("172.28.17.11")}, 16) = -1 EINPROGRESS (Operation now
> in progress)
> sched_yield() = 0
> sched_yield() = 0
> sched_yield() = 0
> sched_yield() = 0
> sched_yield() = 0
> sched_yield() = 0
> [...]
>
> Reassigning to openmpi-bin for now, I am of course open to suggestions
> for any work-arounds or other things to try.
Ubuntu has a patch and fixed package, see
https://bugs.launchpad.net/ubuntu/+source/openmpi/+bug/949044
Michael
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