Why do the null handles not follow a consistent scheme, at least in
Open-MPI 4.1.2?
ompi_mpi_<handle>_null is used except when handle={request,message}, which
drop the "mpi_".
The above have an associated ..null_addr except ompi_mpi_datatype_null and
ompi_message_null.
Why?
Jeff
Open MPI v4.1.2, package: Debian OpenMPI, ident: 4.1.2, repo rev: v4.1.2,
Nov 24, 2021
$ nm -gD /usr/lib/x86_64-linux-gnu/libmpi.so | grep ompi | grep null | grep
-v fn
0000000000134040 B ompi_message_null
0000000000126300 B ompi_mpi_comm_null
0000000000115898 D ompi_mpi_comm_null_addr
0000000000120f40 D ompi_mpi_datatype_null
000000000012cb00 B ompi_mpi_errhandler_null
0000000000116030 D ompi_mpi_errhandler_null_addr
0000000000134660 B ompi_mpi_file_null
00000000001163e8 D ompi_mpi_file_null_addr
0000000000126200 B ompi_mpi_group_null
0000000000115890 D ompi_mpi_group_null_addr
000000000012cf80 B ompi_mpi_info_null
0000000000116038 D ompi_mpi_info_null_addr
0000000000133720 B ompi_mpi_op_null
00000000001163c0 D ompi_mpi_op_null_addr
0000000000135740 B ompi_mpi_win_null
0000000000117c80 D ompi_mpi_win_null_addr
000000000012d080 B ompi_request_null
0000000000116040 D ompi_request_null_addr
--
Jeff Hammond
jeff.scie...@gmail.com
http://jeffhammond.github.io/
