All, I'm trying to build MPICH so that I can cross-compile MPI applications on my x86_64-linux system to run on an arm-linux machine. I want to emphasise that this is different from building a native ARM MPICH install that runs on ARM itself; the intent is that an x86-linux 'root' process compiles ARM MPI application binaries and distributes them to the ARM cores. I have a separate build for compiling the MPI binaries that lie on the root x86 system. I tried running configure with --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=arm-linux-gnueabi, but that didn't give me what I need. If, meanwhile, I try to run mpicc off the native x86 build (the MPICH installation used for running MPI applications on the root x86 system) it complains that the target type specified in the makefile (CFLAGS = -march=armv8-a -mtune=cortex-a53) isn't supported. It's not clear how one creates this sort of 'hybrid' build, running on one platform, compiling MPI applications for another. _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss