Hi,
I failed to configue PETSc on Windows with latest Intel OneAPI toolkit: ./configure --with-cc="win32fe cl" --with-cxx="win32fe cl" --with-fc=0 \ --with-debugging=0 --with-shared-libraries=0 --with-x=0 --with-quad-precision=0 \ --with-threadcomm=1 --with-openmp=1 \ --with-blaslapack-include="$MKLROOT/include" \ --with-blaslapack-lib="-L$MKLROOT/lib/intel64 mkl_core.lib mkl_intel_thread.lib mkl_intel_lp64.lib libiomp5md.lib" \ --with-mpi-include="$I_MPI_ROOT/include" \ --with-mpi-lib="-L$I_MPI_ROOT/lib/release impi.lib" \ --with-mpiexec="$I_MPI_ROOT/bin/mpiexec" \ --ignore-cygwin-link However, the configuration was successful with Intel OneAPI 2022.1.0.93 or previous version. Error message: ============================================================================================= Configuring PETSc to compile on your system ============================================================================================= ============================================================================================= ***** WARNING ***** Using default optimization C flags "-O". You might consider manually setting optimal optimization flags for your system with COPTFLAGS="optimization flags" see config/examples/arch-*-opt.py for examples ============================================================================================= ============================================================================================= ***** WARNING ***** Using default Cxx optimization flags "-O". You might consider manually setting optimal optimization flags for your system with CXXOPTFLAGS="optimization flags" see config/examples/arch-*-opt.py for examples ============================================================================================= TESTING: checkCxxLibraries from config.compilers(config/BuildSystem/config/compilers.py:450) ********************************************************************************************* UNABLE to CONFIGURE with GIVEN OPTIONS (see configure.log for details): --------------------------------------------------------------------------------------------- Cxx libraries cannot directly be used with C as linker. If you don't need the C++ compiler to build external packages or for you application you can run ./configure with --with-cxx=0. Otherwise you need a different combination of C and C++ compilers ********************************************************************************************* makefile:24: /cygdrive/e/petsc-v3.19.2/arch-mswin-c-opt/lib/petsc/conf/petscrules: No such file or directory make[1]: *** No rule to make target '/cygdrive/e/petsc-v3.19.2/arch-mswin-c-opt/lib/petsc/conf/petscrules'. Stop. gmakefile:67: arch-mswin-c-opt/lib/petsc/conf/files: No such file or directory make: *** [GNUmakefile:17: /cygdrive/e/petsc-v3.19.2/arch-mswin-c-opt/include/petscconf.h] Error 2 makefile:24: /cygdrive/e/petsc-v3.19.2/arch-mswin-c-opt/lib/petsc/conf/petscrules: No such file or directory make[1]: *** No rule to make target '/cygdrive/e/petsc-v3.19.2/arch-mswin-c-opt/lib/petsc/conf/petscrules'. Stop. /cygdrive/e/petsc-v3.19.2/lib/petsc/conf/variables:140: /cygdrive/e/petsc-v3.19.2/arch-mswin-c-opt/lib/petsc/conf/petscvariables: No such file or directory make: *** [GNUmakefile:17: /cygdrive/e/petsc-v3.19.2/arch-mswin-c-opt/lib/petsc/conf/petscvariables] Error 2