| 1 | !WRF:MEDIATION_LAYER |
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| 2 | ! |
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| 3 | SUBROUTINE init_modules( phase ) |
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| 4 | USE module_bc |
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| 5 | USE module_configure |
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| 6 | USE module_driver_constants |
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| 7 | USE module_model_constants |
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| 8 | USE module_domain |
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| 9 | USE module_machine |
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| 10 | USE module_nesting |
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| 11 | USE module_timing |
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| 12 | USE module_tiles |
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| 13 | USE module_io_wrf |
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| 14 | USE module_io |
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| 15 | #ifdef DM_PARALLEL |
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| 16 | USE module_wrf_quilt |
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| 17 | USE module_dm |
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| 18 | #endif |
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| 19 | #ifdef INTIO |
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| 20 | USE module_ext_internal |
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| 21 | #endif |
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| 22 | |
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| 23 | ! <DESCRIPTION> |
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| 24 | ! This routine USES the modules in WRF and then calls the init routines |
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| 25 | ! they provide to perform module specific initializations at the |
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| 26 | ! beginning of a run. Note, this is only once per run, not once per |
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| 27 | ! domain; domain specific initializations should be handled elsewhere, |
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| 28 | ! such as in <a href=start_domain.html>start_domain</a>. |
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| 29 | ! |
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| 30 | ! Certain framework specific module initializations in this file are |
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| 31 | ! dependent on order they are called. For example, since the quilt module |
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| 32 | ! relies on internal I/O, the init routine for internal I/O must be |
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| 33 | ! called first. In the case of DM_PARALLEL compiles, the quilt module |
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| 34 | ! calls MPI_INIT as part of setting up and dividing communicators between |
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| 35 | ! compute and I/O server tasks. Therefore, it must be called prior to |
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| 36 | ! module_dm, which will <em>also</em> try to call MPI_INIT if it sees |
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| 37 | ! that MPI has not be initialized yet (implementations of module_dm |
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| 38 | ! should in fact behave this way by first calling MPI_INITIALIZED before |
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| 39 | ! they try to call MPI_INIT). If MPI is already initialized before the |
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| 40 | ! the quilting module is called, quilting will not work. |
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| 41 | ! |
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| 42 | ! The phase argument is used to allow other superstructures like ESMF to |
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| 43 | ! place their initialization calls following the WRF initialization call |
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| 44 | ! that calls MPI_INIT(). When used with ESMF, ESMF will call wrf_init() |
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| 45 | ! which in turn will call phase 2 of this routine. Phase 1 will be called |
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| 46 | ! earlier. |
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| 47 | ! |
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| 48 | ! </DESCRIPTION> |
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| 49 | |
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| 50 | INTEGER, INTENT(IN) :: phase ! phase==1 means return after MPI_INIT() |
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| 51 | ! phase==2 means resume after MPI_INIT() |
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| 52 | |
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| 53 | IF ( phase == 1 ) THEN |
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| 54 | CALL init_module_bc |
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| 55 | CALL init_module_configure |
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| 56 | CALL init_module_driver_constants |
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| 57 | CALL init_module_model_constants |
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| 58 | CALL init_module_domain |
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| 59 | CALL init_module_machine |
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| 60 | |
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| 61 | #ifdef INTIO |
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| 62 | CALL init_module_ext_internal !! must be called before quilt |
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| 63 | #endif |
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| 64 | #ifdef DM_PARALLEL |
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| 65 | CALL split_communicator |
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| 66 | CALL init_module_wrf_quilt !! this *must* be called before init_module_dm |
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| 67 | CALL init_module_dm |
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| 68 | #endif |
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| 69 | ELSE |
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| 70 | CALL init_module_nesting |
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| 71 | CALL init_module_timing |
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| 72 | CALL init_module_tiles |
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| 73 | CALL init_module_io_wrf |
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| 74 | CALL init_module_io |
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| 75 | |
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| 76 | ! core specific initializations -- add new cores here |
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| 77 | #if (EM_CORE == 1) |
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| 78 | # if ( DA_CORE != 1) |
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| 79 | CALL init_modules_em |
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| 80 | # endif |
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| 81 | #endif |
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| 82 | #if (NMM_CORE == 1) |
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| 83 | CALL init_modules_nmm |
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| 84 | #endif |
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| 85 | #if (COAMPS_CORE == 1) |
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| 86 | CALL init_modules_coamps |
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| 87 | #endif |
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| 88 | ENDIF |
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| 89 | |
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| 90 | END SUBROUTINE init_modules |
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| 91 | |
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