Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
mpi-devel
openmpi3-devel
openmpi3-devel(x86-64)
pkgconfig(ompi)
pkgconfig(ompi-c)
pkgconfig(ompi-cxx)
pkgconfig(ompi-f77)
pkgconfig(ompi-f90)
pkgconfig(ompi-fort)
pkgconfig(orte)

Requires :

libhwloc.so.5()(64bit)
libc.so.6()(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libutil.so.1()(64bit)
rtld(GNU_HASH)
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
librt.so.1()(64bit)
libpthread.so.0(GLIBC_2.2.5)(64bit)
libpthread.so.0()(64bit)
libmpi.so.40()(64bit)
liboshmem.so.40()(64bit)
libc.so.6(GLIBC_2.8)(64bit)
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(CompressedFileNames) <= 3.0.4-1
libmpi_usempi.so.40()(64bit)
libc.so.6(GLIBC_2.4)(64bit)
/usr/bin/pkg-config
gcc-gfortran
libmpi_mpifh.so.40()(64bit)
openmpi3(x86-64) = 3.1.3-2.el7
libm.so.6()(64bit)
libmpi_cxx.so.40()(64bit)
rpmlib(PayloadIsXz) <= 5.2-1
libz.so.1()(64bit)
libdl.so.2()(64bit)

Content of RPM :
/usr/include/openmpi3-x86_64
/usr/include/openmpi3-x86_64/mpi-ext.h
/usr/include/openmpi3-x86_64/mpi.h
/usr/include/openmpi3-x86_64/mpi_portable_platform.h
/usr/include/openmpi3-x86_64/mpif-c-constants-decl.h
/usr/include/openmpi3-x86_64/mpif-config.h
/usr/include/openmpi3-x86_64/mpif-constants.h
/usr/include/openmpi3-x86_64/mpif-ext.h
/usr/include/openmpi3-x86_64/mpif-externals.h
/usr/include/openmpi3-x86_64/mpif-handles.h
/usr/include/openmpi3-x86_64/mpif-io-constants.h
/usr/include/openmpi3-x86_64/mpif-io-handles.h
/usr/include/openmpi3-x86_64/mpif-sentinels.h
/usr/include/openmpi3-x86_64/mpif-sizeof.h
/usr/include/openmpi3-x86_64/mpif.h
/usr/include/openmpi3-x86_64/mpp
/usr/include/openmpi3-x86_64/mpp/shmem.fh
/usr/include/openmpi3-x86_64/mpp/shmem.h
/usr/include/openmpi3-x86_64/openmpi
/usr/include/openmpi3-x86_64/openmpi/ompi
/usr/include/openmpi3-x86_64/openmpi/ompi/mpi
/usr/include/openmpi3-x86_64/openmpi/ompi/mpi/cxx
/usr/include/openmpi3-x86_64/openmpi/ompi/mpi/cxx/comm.h
/usr/include/openmpi3-x86_64/openmpi/ompi/mpi/cxx/comm_inln.h
/usr/include/openmpi3-x86_64/openmpi/ompi/mpi/cxx/constants.h
/usr/include/openmpi3-x86_64/openmpi/ompi/mpi/cxx/cxx_glue.h
/usr/include/openmpi3-x86_64/openmpi/ompi/mpi/cxx/datatype.h
/usr/include/openmpi3-x86_64/openmpi/ompi/mpi/cxx/datatype_inln.h
/usr/include/openmpi3-x86_64/openmpi/ompi/mpi/cxx/errhandler.h
/usr/include/openmpi3-x86_64/openmpi/ompi/mpi/cxx/errhandler_inln.h
There is 770 files more in these RPM.