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Difference in output of ldd command with and without sudo
Hi,
I'm working on following Linux OS.
Ubuntu 14.04.3 LTS \n \l
Linux Debian jessie/sid ( 3.13.0-62-generic x86_64)
I'm seeing difference in output of ldd command with and without sudo for the same executable as below.
$ ldd ./hpcc
linux-vdso.so.1 => (0x00007fff74ba6000)
libmpi.so.12 => /home/lml/install_1/lib/libmpi.so.12 (0x00007f4a5559a000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f4a5537c000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f4a55076000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f4a54cb1000)
libOpenCL.so.1 => /usr/lib/x86_64-linux-gnu/libOpenCL.so.1 (0x00007f4a54aa8000)
libibmad.so.5 => /usr/lib/x86_64-linux-gnu/libibmad.so.5 (0x00007f4a5488f000)
libibumad.so.3 => /usr/lib/x86_64-linux-gnu/libibumad.so.3 (0x00007f4a54688000)
libibverbs.so.1 => /usr/lib/libibverbs.so.1 (0x00007f4a5447b000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f4a54273000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f4a5405d000)
/lib64/ld-linux-x86-64.so.2 (0x00007f4a55c31000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f4a53e59000)
$ sudo ldd ./hpcc
[sudo] password for lml:
linux-vdso.so.1 => (0x00007fffc1d61000)
libmpi.so.12 => not found
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fd9c81ad000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fd9c7ea7000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fd9c7ae2000)
/lib64/ld-linux-x86-64.so.2 (0x00007fd9c83cb000)
Why is libmpi.so.12 not found when ldd is run with sudo command.
Because of this, when I run hpcc executable under sudo, I get following error.
$ sudo mpirun -np 4 ./hpcc
./hpcc: error while loading shared libraries: libmpi.so.12: cannot open shared object file: No such file or directory
Thank you.
LML
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