Problem : 

Build an Intel® MKL program on Mac OS* with Intel® Fortran Compiler,

For example, m_cprof_p_11.1.076,
MKLPATH=/opt/intel/Compiler/11.1/076/Frameworks/mkl/lib/em64t
MKLINCLUDE=/opt/intel/Compiler/11.1/076/Frameworks/mkl/include
> ifort  main. f -o  main -L$(MKLPATH) -I$(MKLINCLUDE) -lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core  -lpthread 

get compiler warning:
ld64 warning: indirect library libiomp5.dylib could not be loaded: file not found: libiomp5.dylib

Or runtime error:
dyld: Library not loaded: libiomp5.dylib
  Referenced from: /opt/intel/Compiler/11.1/076/Frameworks/mkl/lib/em64t/libmkl_intel_thread.dylib
  Reason: image not found
Trace/BPT trap


Root Cause : 
Since MKL 10.0, the MKL libraries for Mac OS* have been integrated into Intel® C++/Fortran Compiler Professional Edition or Intel® C++/Fortran Composer XE for Mac OS* X. The default path of MKL libraries were changed from 
"/Library/Frameworks/Intel_MKL.framework/Versions/10.0.x.xxx/"  
to "/opt/intel/Compiler/11.x/0xx/Frameworks/mkl/"  

At the same time, the default OpenMP libraries (libiomp5.dylib, libiomp5.a) used by MKL are not in <MKL Libraries>/lib directory as in previous versions. They are under the Intel compiler lib directory now. 
for example,  in /opt/intel/Compiler/11.0/0xx/lib

(IPP is the same, please see the article XCode link error: "file not found: libiomp5.dylib" )

Resolution : 
For compiler warning:
Please refer to the MKL link line advisor.
the command line could be
>ifort  main. f -o  main -L$(MKLPATH) -I$(MKLINCLUDE) -lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core -openmp -lpthread 

or
ifort  main. f -o  main -L$(MKLPATH) -I$(MKLINCLUDE) -lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core 
-L/opt/intel/Compiler/11.1/076/lib -liomp5 -lpthread 

For runtime error:  like dyld: Library not loaded: lib[mkl|ipp]_x.dylib

Please add the path of lib*.dylib in system environment before run binary.
>export DYLD_LIBRARY_PATH="/opt/intel/Compiler/11.1/076/lib:$DYLD_LIBRARY_PATH"

In Xcode 2.3 development environment,
Under Executables, Double click active Executable, click "Arguments" Tab, under Variables to be set in the environment, Add DYLD_LIBRARY_PATH , set value, for example,
/opt/intel/Compiler/11.1/076/lib:/opt/intel/Compiler/11.1/080/Frameworks/mkl/lib/em64t

December 1, 2009 1:08 PM PST tj

in the last line of the article, "/" should be added in front of opt >export DYLD_LIBRARY_PATH="/opt/intel/Compiler/11.1/076/lib:$DYLD_LIBRARY _PATH"

December 1, 2009 6:14 PM PST Intel Software Network Support Total Points: 5,380 Green Belt

Fixed, thank you.

July 18, 2010 1:15 PM PDT Ted Christopher Total Points: 165 Green Belt

Hi, Where is the line >export DYLD_LIBRARY_PATH="/opt/intel/Compiler/11.1/076/lib:$DYLD_LIBRARY _PATH" placed? Thanks for any help. Ted C.

July 19, 2010 12:56 AM PDT Ying H (Intel) Total Points: 19,146 Brown Belt

Hi Ted, if you build and run your program under command line, then put the line before run the application. for example, in cmd windows enter, $export DYLD_LIBRARY_PATH="/opt/intel/Compiler/11.1/076/lib:$DYLD_LIBRARY _PATH" $./main If you build and run your program in some develop IDE, like Xcode 3.0, then add the envioronment variable in the IDE. Regards, Ying

July 19, 2010 11:30 AM PDT Ted Christopher Total Points: 165 Green Belt

Hi and thanks Ying, I am using the Unix command line and I get, DYLD_LIBRARY: Undefined variable. when I tried executing the export line. I know very little about the Unix command/environment world. What is this if statement in ippvarsem64t.csh trying to do? if !($?DYLD_LIBRARY_PATH) then setenv DYLD_LIBRARY_PATH ${IPPROOT}/Libraries else setenv DYLD_LIBRARY_PATH ${IPPROOT}/Libraries:${DYLD_LIBRARY_PATH} endif Thanks again, Ted

July 21, 2010 2:36 PM PDT Ted Christopher Total Points: 165 Green Belt

Hi, I tried the suggested export statement without success (see above). Is there something else I should try? Thanks, Ted

July 22, 2010 1:18 AM PDT Ying H (Intel) Total Points: 19,146 Brown Belt

Hi Ted, If DYLD_LIBRARY: Undefined variable, you may try >export DYLD_LIBRARY_PATH="/opt/intel/Compiler/11.1/076/lib" If it still doesn't work, please sumbit your question to MKL forum (with more details information, like what kind OS and processor,what software IPP or MKL are you using) Thanks Ying

July 22, 2010 1:20 AM PDT Ying H (Intel) Total Points: 19,146 Brown Belt

MKL forum URL : http://software.intel.com/en-us/forums/intel-math-kernel-library/

To obtain technical support, please go to Software Support.