此问题纠结近30个小时后终于得到解决，期间用过很多方法，一一列举如下：

Problem:

./lin_sol_svd_ex2

./lin_sol_svd_ex2: error while loading shared libraries: libimsl.so: cannot open shared object file:

No such file or directory

ldd lin_sol_svd_ex2

libimsl.so => not found

libimslsuperlu.so => not found

libimslscalar.so => not found

libimslblas.so => not found

libm.so.6 => /lib/tls/libm.so.6 (0x007df000)

libguide.so => /opt/intel/intel-10.0/fc-10.0/lib/libguide.so (0x00111000)

libpthread.so.0 => /lib/tls/libpthread.so.0 (0x0090d000)

libc.so.6 => /lib/tls/libc.so.6 (0x006b2000)

libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x0055a000)

libdl.so.2 => /lib/libdl.so.2 (0x00804000)

/lib/ld-linux.so.2 (0x00699000)

Solution: set LD_LIBRARY_PATH:

export LD_LIBRARY_PATH=$IMSL_LIB_DIR:$LD_LIBRARY_PATH

echo $LD_LIBRARY_PATH

/opt/imsl/imsl-6.0-intel/imsl/fnl600/lnxin100i32/lib:/opt/intel/intel-10.0/fc-10.0/lib:/opt/intel/intel-10.0/cc-10.0/lib

ldd lin_sol_svd_ex2

libimsl.so => /opt/imsl/imsl-6.0-intel/imsl/fnl600/lnxin100i32/lib/libimsl.so (0x006b0000)

libimslsuperlu.so => /opt/imsl/imsl-6.0-intel/imsl/fnl600/lnxin100i32/lib/libimslsuperlu.so (0x00111000)

libimslscalar.so => /opt/imsl/imsl-6.0-intel/imsl/fnl600/lnxin100i32/lib/libimslscalar.so (0x0016b000)

libimslblas.so => /opt/imsl/imsl-6.0-intel/imsl/fnl600/lnxin100i32/lib/libimslblas.so (0x002c2000)

libm.so.6 => /lib/tls/libm.so.6 (0x00316000)

libguide.so => /opt/intel/intel-10.0/fc-10.0/lib/libguide.so (0x00339000)

libpthread.so.0 => /lib/tls/libpthread.so.0 (0x0038c000)

libc.so.6 => /lib/tls/libc.so.6 (0x0039e000)

libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x0055a000)

libdl.so.2 => /lib/libdl.so.2 (0x004c9000)

libifport.so.5 => /opt/intel/intel-10.0/fc-10.0/lib/libifport.so.5 (0x004cd000)

libifcore.so.5 => /opt/intel/intel-10.0/fc-10.0/lib/libifcore.so.5 (0x00564000)

libimf.so => /opt/intel/intel-10.0/fc-10.0/lib/libimf.so (0x041b8000)

libintlc.so.5 => /opt/intel/intel-10.0/fc-10.0/lib/libintlc.so.5 (0x004ed000)

/lib/ld-linux.so.2 (0x00699000)

按照此方法没有有效的解决，不知道原因！

2：修改过 /etc/profile 以及home目录下的.bash_profile，添加了imsl库的路径，问题依然没有解决！

3：随后问百度，告诉我几个答案

按照这个方法问题得到有效解决：

步骤如下，

因为我系统中有其所需库文件，因此，我只用root用户(似乎必须用root用户，因为在执行ldconfig时只能是root)修改了/etc/ld.so.conf，添加了我的库路径/opt/imsl/imsl/install/imsl/fnl600/rdhin111e64/lib/，添加过程中出现一个小小的错误，lib后面的“/”忘记写了，导致失效。

添加好以上路径后如下：

include ld.so.conf.d/*.conf

/opt/imsl/imsl/install/imsl/fnl600/rdhin111e64/lib/

然后用root用户执行 ldconfig，再 $ldd a.out

发现可以检索到相关库！

问题解决！

最后感谢 linux群中的热心网友，谢谢你们的鼓励和指导！尤其是 亂纃㈧蹧D僾(4947757**)的鼓励