Add a deterministic variant

[harshula]

• This PR is only focused on adding the deterministic variant.
• The general compiler flag audit will happen in Audit the compiler flags used to build on gadi with the Intel compiler ACCESS-OM2#12
• We'll likely end-up storing the compiler flags in an appropriate data structure and then extract the relevant compiler flags based on the variant/compiler.

[aidanheerdegen]

Looks good.