CESM2.2.1 CISM CASEROOT Variable Definitions

b'Name of land ice-sheet component'

b'TRUE implies CISM is built with support for the trilinos library\n      When using the higher-order dynamical cores in CISM, one option is to\n      use the trilinos solver library for sparse matrix solves. In order to\n      exercise that option, you need to build CISM with trilinos support, and\n      link to the trilinos libraries when building the CESM executable. Setting\n      this variable to TRUE accomplishes these things. Note that you can set\n      this to TRUE and still choose not to use the trilinos solvers for the\n      sparse matrix solves. Also, note that trilinos is only available on a\n      limited set of machines; this must remain FALSE to run CISM on a\n      machine that does not have trilinos, or for which the CESM scripts are\n      not aware of the existence of trilinos.'

b'Version of CISM physics/dynamics to use'

b'Whether CISM ice evolution is on or off.\n\n     Setting CISM_EVOLVE to FALSE in a hybrid case also forces the use\n     of observed initial conditions, as if you had also set\n     CISM_OBSERVED_IC=TRUE.\n     '

b'For hybrid runs, whether CISM should use observed initial\n    conditions instead of restart file.\n\n    For hybrid runs, a value of FALSE (default) implies that CISM should\n    use the restart file from the reference case; a value of TRUE\n    implies that CISM should instead use the observed initial conditions\n    that are generally used for startup runs. This variable is ignored\n    for startup runs; for branch runs, it must be FALSE.\n\n    Note that setting CISM_EVOLVE to FALSE in a hybrid case also forces\n    the use of observed initial conditions, as if you had also set\n    CISM_OBSERVED_IC=TRUE.\n    '