The routines "get_elpa_communicators" and "elpa_get_row_col_comms"
have been replaced by "elpa_get_communicators"

These symbos have been replaced by "elpa_get_communicators" and will
be deleted at some point

configure can now distinguish the options --enable-assumed-size and
--disable-assumed-size

This can be switched off via --disable-assumed-size

Sometimes it might be desirable that only one of the specifc AVX
kernels (AVX, AVX2, and in the future AVX512) are build, even though the processor
supports all (or several) of these instructions.

The flag --disable-[avx | avx2 | avx512] allows to define which kernels
should NOT be build. The default is: what can be build will be build