<div dir="ltr">Howdy,<div><br></div><div>I am trying to install PETSc on windows with cygwin but got an mpi error. Could you have a look at my issue and give me some instructions?</div><div><br>Here is the information about my environment:<br>1. operation system: windows 11<br>2. visual studio version: 2019<br>3. intel one API toolkit is installed<br>4. Microsoft MS MPI is installed. <br>5. Intel MPI is uninstalled.<br>6. PETSc version: 3.16.1<br><br>this is my configuration:<br>./configure --with-cc='win32fe cl' --with-fc='win32fe ifort' --prefix=~/petsc-opt/ --PETSC_ARCH=windows-intel-opt --with-mpi-include=['/cygdrive/c/Program Files (x86)/Microsoft SDKs/MPI/Include','/cygdrive/c/Program Files (x86)/Microsoft SDKs/MPI/Include/x64'] --with-mpi-lib=['/cygdrive/c/Program Files (x86)/Microsoft SDKs/MPI/Lib/x64/msmpi.lib','/cygdrive/c/Program Files (x86)/Microsoft SDKs/MPI/Lib/x64/msmpifec.lib'] --with-blas-lapack-lib=['/cygdrive/c/Program Files (x86)/Intel/oneAPI/mkl/2021.3.0/lib/intel64/mkl_intel_lp64.lib','/cygdrive/c/Program Files (x86)/Intel/oneAPI/mkl/2021.3.0/lib/intel64/mkl_core.lib','/cygdrive/c/Program Files (x86)/Intel/oneAPI/mkl/2021.3.0/lib/intel64/mkl_sequential.lib'] --with-scalapack-include='/cygdrive/c/Program Files (x86)/Intel/oneAPI/mkl/2021.3.0/include' --with-scalapack-lib=['/cygdrive/c/Program Files (x86)/Intel/oneAPI/mkl/2021.3.0/lib/intel64/mkl_scalapack_lp64.lib','/cygdrive/c/Program Files (x86)/Intel/oneAPI/mkl/2021.3.0/lib/intel64/mkl_blacs_msmpi_lp64.lib'] --with-fortran-interfaces=1 --with-debugging=0<br><br>attached is the configure.log file.</div><div><br></div><div>Thanks </div><div><br></div><div>Ning Li</div></div>