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Subject: Re: [OMPI users] Begginers question: why does this program
From: George Bosilca (bosilca_at_[hidden])
Date: 2008-03-18 10:34:10


As indicated in the FAQ you should add the directory where Open MPI
was installed to the LD_LIBRARY_PATH.

   george.

On Mar 18, 2008, at 8:57 AM, Giovani Faccin wrote:

> Ok, I uninstalled the previous version. Then downloaded the pre-
> release version. Unpacked it, configure, make, make install....
>
> When running MPICC I get this:
> mpiCC: error while loading shared libraries: libopen-pal.so.0:
> cannot open shared object file: No such file or directory
>
> $whereis libopen-pal
> libopen-pal: /usr/local/lib/libopen-pal.so /usr/local/lib/libopen-
> pal.la
>
> So the library exists. How can I make mpiCC know it's location?
>
> Thanks!
>
> Giovani
>
>
>
> Giovani Faccin <giovanifaccin_at_[hidden]> escreveu: Yep, setting
> the card manually did not solve it.
>
> I'm compiling the pre-release version now. Let's see if it works.
>
> Giovani
>
> Giovani Faccin <giovanifaccin_at_[hidden]> escreveu: Hi Mark
>
> Compiler and flags:
>
> sys-devel/gcc-4.1.2 USE="doc* fortran gtk mudflap nls (-altivec) -
> bootstrap -build -d -gcj (-hardened) -ip28 -ip32r10k -libffi% (-
> multilib) -multislot (-n32) (-n64) -nocxx -objc -objc++ -objc-gc -
> test -vanilla"
>
> Network stuff:
>
> sonja gfaccin # ifconfig
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> inet6 addr: ::1/128 Scope:Host
> UP LOOPBACK RUNNING MTU:16436 Metric:1
> RX packets:33166 errors:0 dropped:0 overruns:0 frame:0
> TX packets:33166 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:9846970 (9.3 Mb) TX bytes:9846970 (9.3 Mb)
>
> wlan0 Link encap:Ethernet HWaddr 00:1C:BF:24:24:91
> inet addr:192.168.1.50 Bcast:192.168.0.255 Mask:
> 255.255.255.0
> inet6 addr: fe80::21c:bfff:fe24:2491/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:5944 errors:0 dropped:0 overruns:0 frame:0
> TX packets:6343 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:3058968 (2.9 Mb) TX bytes:1713598 (1.6 Mb)
>
> wmaster0 Link encap:UNSPEC HWaddr 00-1C-
> BF-24-24-91-60-00-00-00-00-00-00-00-00
> -00
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
>
> I have 2 cards in my laptop, one is an ethernet one that's not
> enabled (no kernel modules loaded). The other one is the wireless
> card, which is enabled. Those 2 interfaces appear because the driver
> creates them. The real one is wlan0.
>
> I'll try to find in the faq where is this flag to specify the card,
> just in case MPI might be trying to use wmaster0. Let's see if it
> works.
>
> Thanks!
>
> Giovani
>
>
> Mark Kosmowski <mark.kosmowski_at_[hidden]> escreveu: Giovani:
>
> Which compiler are you using?
>
> Also, you didn't mention this, but does "mpirun hostname" give the
> expected response? I (also new) had a hang similar to what you are
> describing due to ompi getting confused as to which of two network
> interfaces to use - "mpirun hostname" would hang when started on
> certain nodes. This problem was resolved by telling ompi which
> network interface to use (I forget the option needed to do this off
> the top of my head, but it is in the FAQ somewhere).
>
> Good luck,
>
> Mark
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