Do you get this error when you compile a PETSc example [with the corresponding PETSc makefile]?
If not - you'll have to check the difference in compiler options between this example compile - and your application. Satish On Tue, 15 Aug 2023, maitri ksh wrote: > I was earlier using petsc with real-built, i tried configuring it for a > complex environment using the same procedure (at least I think so) but with > the addition of '--with-scalar-type=complex'. There appears to be no > problem during the configuration process and its checks ('*configure.log*' > is attached). But while compiling code, I ran into an error message > concerning conflicts due to multiple versions of mpi. How do I resolve > this? >