CIME Development Plans

Near term

Fix bugs and harden for release in ACME and CESM.

(who is planning to work on it)

Support for configuring system with different couplers (CSEG and ACME)
An alternate hierarchical coupling layer and driver using NUOPC/EMSF (CSEG)
An alternative coupling layer and driver supporting exascale (ACME)
Support for runtime mapping weight calculation (CSEG and ACME)
Support for second order conservative remapping (CSEG)
Support for pause/resume/rewind capability and the addition of a new component that will perform ensemble kalman filter file-based data assimilation. Rewind capability will also be leveraged to incorporate new fault tolerant capabilities (CSEG)

Faster configure, test and build systems in a more modern language (ACME and CSEG)
Extension of code and machine coverage in tests (ACME and CSEG)
Separation of configure and build systems (ACME and CSEG)
Faster and larger number of system tests (ACME and CSEG)
Fewer invocations of build when testing (ACME and CSEG)
Support in build for more compiled languages (ACME and CSEG).
Removal of hard-coding of fields exchanged by components and incorporation of new xml-based namelist generation mechanism to generate the required fields exchanged from the compset specification (CSEG and ACME)
New post-processing diagnostic capability that will accompany an experimental case (CSEG)

Support only PIO2 across the system (currently both PIO1 and PIO2 are supported) (ACME and CSEG),
Performance improvements to pio2 (ACME and CSEG)
Update and test load balancing tool (ACME)
ACME is also doing work in standalone remapping and statistical testing tools but they are not part of or based on CIME’s tools.