Using MKL_DIRECT_CALL in Fortran Applications
The following examples of code and link lines show how to activate direct calls to Intel® oneAPI Math Kernel Library kernels in Fortran applications:
Include mkl_direct_call.fi, to be preprocessed by the Fortran compiler preprocessor
# include "mkl_direct_call.fi" program DGEMM_MAIN .... * Call Intel MKL DGEMM .... call sub1() stop 1 end * A subroutine that calls DGEMM subroutine sub1 * Call Intel MKL DGEMM end
For multi-threaded Intel® oneAPI Math Kernel Library, compile with/fpp option for Intel Fortran compiler and with MKL_DIRECT_CALL preprocessor macro:
ifort /DMKL_DIRECT_CALL /fpp your_application.f mkl_intel_lp64.lib mkl_core.lib mkl_intel_thread.lib /Qopenmp -I%MKLROOT%/include
To use Intel® oneAPI Math Kernel Library in the sequential mode, compile with/fpp option for Intel Fortran compiler (or with -Mpreprocess for PGI compilers) and with MKL_DIRECT_CALL_SEQ preprocessor macro:
ifort /DMKL_DIRECT_CALL_SEQ /fpp your_application.f mkl_intel_lp64.lib mkl_core.lib mkl_sequential.lib -I%MKLROOT%/include
Product and Performance Information
Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.
Notice revision #20201201
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