https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-10-0-1-14-on-em64t/m-p/883318#M9785 Could you help me with compilation on my new Xeon with FC8 x86_64 machine? The same routine compiles on a different 64 bit machine, but on a new one ld complains. The machine without problems:<BR />2.6.9-55.0.12.ELsmp #1 SMP Fri Nov 2 12:38:56 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux<BR /> Flags= -lmkl_intel_thread -lmkl_solver -lmkl_lapack -lmkl_em64t -lmkl -lguide -lpthread<BR /> LIB= /opt/intel/cmkl/10.0.1.014/lib/em64t<BR /><BR />The machine WITH problems:<BR />2.6.24.3-34.asl.1.fc8 #1 SMP Mon Mar 17 12:32:26 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux<BR /> Flags= -lmkl_intel_thread -lmkl_solver -lmkl_lapack -lmkl_em64t -lmkl -lguide -lpthread<BR /> LIB= /opt/intel/mkl/10.0.1.014/lib/em64t<BR />The comand and the error:<BR />/opt/intel/fc/10.1.015/bin/ifort -L/opt/intel/mkl/10.0.1.014/lib/em64t peslibs.o -lmkl_intel_thread -lmkl_solver -lmkl_lapack -lmkl_em64t -lmkl -lguide -lpthread orderpes.f -o orderpes.x<BR />ld: skipping incompatible /opt/intel/mkl/10.0.1.014/lib/em64t/libmkl_intel_thread.so when searching for -lmkl_intel_thread<BR />ld: skipping incompatible /opt/intel/mkl/10.0.1.014/lib/em64t/libmkl_intel_thread.a when searching for -lmkl_intel_thread<BR />ld: cannot find -lmkl_intel_thread<BR />make: *** [orderpes.x] Error 1 <BR /><BR /><B>OK, figured out the problem: I was compiling with 32 bit ifort (default in $INTEL/fc) rather than 64 bit ifort (default in $INTEL/fce)</B><BR /><BR /> Fri, 23 May 2008 22:57:14 GMT Vitaly_R_ 2008-05-23T22:57:14Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-10-0-1-14-on-em64t/m-p/883318#M9785 Could you help me with compilation on my new Xeon with FC8 x86_64 machine? The same routine compiles on a different 64 bit machine, but on a new one ld complains. The machine without problems:<BR />2.6.9-55.0.12.ELsmp #1 SMP Fri Nov 2 12:38:56 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux<BR /> Flags= -lmkl_intel_thread -lmkl_solver -lmkl_lapack -lmkl_em64t -lmkl -lguide -lpthread<BR /> LIB= /opt/intel/cmkl/10.0.1.014/lib/em64t<BR /><BR />The machine WITH problems:<BR />2.6.24.3-34.asl.1.fc8 #1 SMP Mon Mar 17 12:32:26 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux<BR /> Flags= -lmkl_intel_thread -lmkl_solver -lmkl_lapack -lmkl_em64t -lmkl -lguide -lpthread<BR /> LIB= /opt/intel/mkl/10.0.1.014/lib/em64t<BR />The comand and the error:<BR />/opt/intel/fc/10.1.015/bin/ifort -L/opt/intel/mkl/10.0.1.014/lib/em64t peslibs.o -lmkl_intel_thread -lmkl_solver -lmkl_lapack -lmkl_em64t -lmkl -lguide -lpthread orderpes.f -o orderpes.x<BR />ld: skipping incompatible /opt/intel/mkl/10.0.1.014/lib/em64t/libmkl_intel_thread.so when searching for -lmkl_intel_thread<BR />ld: skipping incompatible /opt/intel/mkl/10.0.1.014/lib/em64t/libmkl_intel_thread.a when searching for -lmkl_intel_thread<BR />ld: cannot find -lmkl_intel_thread<BR />make: *** [orderpes.x] Error 1 <BR /><BR /><B>OK, figured out the problem: I was compiling with 32 bit ifort (default in $INTEL/fc) rather than 64 bit ifort (default in $INTEL/fce)</B><BR /><BR /> Fri, 23 May 2008 22:57:14 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-10-0-1-14-on-em64t/m-p/883318#M9785 Vitaly_R_ 2008-05-23T22:57:14Z