Venado build

[pguthrey]

Summary

Build system work for LANL's Grace Hopper machine, Venado. Thanks @white238 for the help.

• This PR is a feature
• It does the following (modify list as needed):
  • Provides a host-config and build script for LANL's Venado machine

Design review (for API changes or additions---delete if unneeded)

On (date), we reviewed this PR. We discussed the design ideas:

1. First idea or goal
2. Second idea
3. Third idea

This PR implements 1. and 3. It leaves out 2. for the following reasons

• (impractical)
• (too big)
• (not a good idea anyway)

[MrBurmark]

This puts more setting of options and configuring paths in the host-config rather than the script which is a little different than how we've done things before. @rhornung67 what do you think about this direction?

[rchen20]

Was there supposed to be something else in the example here apart from make test?

[rhornung67]

Probably. Our other nvcc scripts have something like this: https://github.com/LLNL/RAJA/blob/develop/scripts/lc-builds/blueos_nvcc_gcc.sh#L63

[rhornung67]

This puts more setting of options and configuring paths in the host-config rather than the script which is a little different than how we've done things before. @rhornung67 what do you think about this direction?

@MrBurmark I think keeping as much in the script as possible is best for flexibility. When things are hard-wired in the host-config, you have to edit that file to change something. In general, I think scripts with args and instructions with examples are best. Even if something is hardwired in the script file, it's easier to modify than finding the host-config and editing that.