coll/han does not compile with nvcc 22.X

[hppritcha]

In trying to build Open MPI main and 5.0.0rc10 with nvidia compilers (22.7), an internal compiler error is hit when compiling coll_han_component.c

NVC++-F-0000-Internal compiler error. unhandled type      44 

I do not have access to a newer compiler.

The workaround for now is to build Open MPI without the HAN collective component. Add --enable-mca-no-build=coll-han to the Open MPI configure line.

[bosilca]

I'm not sure how I can help here, we don't even know what type or around what line the issue is located. @hppritcha do you have any additional information ?

[hppritcha]

The compiler doesn't seem to like the COMPONENT_T component at ~line 250 in the file. No idea why that is. Nothing illegal looking about its definition. It seems to be a little more complex than this structure alone though, because a simple standalone test declaring that structure and using it doesn't exhibit the compiler failure.

[bosilca]

Try to change it from COMPONENT_T to uint32_t. I bet it does not like to use an enum as an iterator in the loop at line 466.

[hppritcha]

i'll give that a try.

[hppritcha]

unfortunately that suggestion didn't change the result - compiler still fails with an internal error.

[hppritcha]

okay the problem for nvcc was initializing mca_coll_han_component without setting
dynamic_rules_filename to NULL. apparently its static initializer code is kind of iffy.

[hppritcha]

closed vida #11413
and #11416