Looking for input: More core architecture decisions

[HendrikTolman-NOAA]

@ardhuin, @mickaelaccensi, @ukmo-ccbunney, @ukmo-juan-castillo, @ukmo-jianguo-li, @ukmo-kitstokes, @ukmo-daisybrown, @thesser1, @benoitp-cmc, @aronroland, @jcwarner-usgs, @sbrus89, @ErickRogers, @OceanYu2022

@JessicaMeixner-NOAA, @kestonsmith-noaa, @mingchen-NOAA, @sbanihash, @EJRainville-NOAA, @DeniseWorthen, @aerorahul, @mwilliswave

Dear Community,

As a second step in discussing core architecture decisions for WW4, here are another set of Issues for which we would like your input.

• Issue Grid representation #40
• Issue Data Structures #41
• Issue Model options #42
• Issue CPU - GPU architecture #43

Understanding that many of us may be in summer mode, we still would appreciate input by August 14, but will leave the discussion open longer.

Thanks for your collaboration as usual!