Changeset 4624 for trunk/NEMOGCM/NEMO/TOP_SRC/CFC/trcnam_cfc.F90

Timestamp:

2014-04-28T14:09:03+02:00 (10 years ago)

Author:

acc

Message:

#1305. Fix slow start-up problems on some systems by introducing and using lwm logical to restrict output of merged namelists to the first (or only) processor. lwm is true only on the first processor regardless of ln_ctl. Small changes to all flavours of nemogcm.F90 are also required to write namctl and namcfg after the call to mynode which now opens output.namelist.dyn and writes nammpp.

File:

• trunk/NEMOGCM/NEMO/TOP_SRC/CFC/trcnam_cfc.F90 (modified) (4 diffs)

trunk/NEMOGCM/NEMO/TOP_SRC/CFC/trcnam_cfc.F90

@@ -55 +55 @@
       CALL ctl_opn( numnatc_ref, 'namelist_cfc_ref'   ,     'OLD', 'FORMATTED', 'SEQUENTIAL', -1, numout, .FALSE. )
       CALL ctl_opn( numnatc_cfg, 'namelist_cfc_cfg'   ,     'OLD', 'FORMATTED', 'SEQUENTIAL', -1, numout, .FALSE. )
-      CALL ctl_opn( numonc     , 'output.namelist.cfc', 'UNKNOWN', 'FORMATTED', 'SEQUENTIAL', -1, numout, .FALSE. )
+      IF(lwm) CALL ctl_opn( numonc, 'output.namelist.cfc', 'UNKNOWN', 'FORMATTED', 'SEQUENTIAL', -1, numout, .FALSE. )
 
       REWIND( numnatc_ref )              ! Namelist namcfcdate in reference namelist : CFC parameters
@@ -64 +64 @@
       READ  ( numnatc_cfg, namcfcdate, IOSTAT = ios, ERR = 902 )
 902   IF( ios /= 0 ) CALL ctl_nam ( ios , 'namcfcdate in configuration namelist', lwp )
-      WRITE ( numonc, namcfcdate )
+      IF(lwm) WRITE ( numonc, namcfcdate )
 
       IF(lwp) THEN                  ! control print
@@ -88 +88 @@
          READ  ( numnatc_cfg, namcfcdia, IOSTAT = ios, ERR = 904 )
 904      IF( ios /= 0 ) CALL ctl_nam ( ios , 'namcfcdia in configuration namelist', lwp )
-         WRITE ( numonc, namcfcdia )
+         IF(lwm) WRITE ( numonc, namcfcdia )
 
          DO jl = 1, jp_cfc_2d
@@ -110 +110 @@
       ENDIF
 
-   CALL FLUSH ( numonc )     ! flush output namelist CFC
+   IF(lwm) CALL FLUSH ( numonc )     ! flush output namelist CFC
 
    END SUBROUTINE trc_nam_cfc