Set rearr opts using pio interface

Instead of filling in and passing pio_rearr_opt_t type in pio_init,
we now use pio_set_rearr_opts() interface to set the rearranger
options.

This change decouples the cime shared code from pio by avoiding
accessing the internal pio type (pio_rearr_opt_t) to set the
rearranger options.

This change requires pio1 to support the pio_set_rearr_opts()
interface.

Fixes #1296

src/share/util/shr_pio_mod.F90

@@ -52,7 +52,11 @@ module shr_pio_mod
   integer, allocatable :: io_compid(:)
   integer :: pio_debug_level=0, pio_blocksize=0
   integer(kind=pio_offset_kind) :: pio_buffer_size_limit=-1
-  type(pio_rearr_opt_t)  :: pio_rearr_opts
+  integer :: pio_rearr_opt_comm_type, pio_rearr_opt_fcd
+  logical :: pio_rearr_opt_c2i_enable_hs, pio_rearr_opt_c2i_enable_isend
+  integer :: pio_rearr_opt_c2i_max_pend_req
+  logical :: pio_rearr_opt_i2c_enable_hs, pio_rearr_opt_i2c_enable_isend
+  integer :: pio_rearr_opt_i2c_max_pend_req
   integer :: total_comps=0
 
 #define DEBUGI 1
@@ -144,6 +148,7 @@ subroutine shr_pio_init2(comp_id, comp_name, comp_iamin, comp_comm, comp_comm_ia
     integer :: ncomps
     character(len=shr_kind_cl) :: nlfilename, cname
     type(iosystem_desc_t) :: iosys
+    integer :: ret
     character(*), parameter :: subName = '(shr_pio_init2) '
 
     if(pio_debug_level>0) then
@@ -177,7 +182,18 @@ subroutine shr_pio_init2(comp_id, comp_name, comp_iamin, comp_comm, comp_comm_ia
 
     if(pio_async_interface) then
 #ifdef PIO1
-       call pio_init(total_comps,mpi_comm_world, comp_comm, io_comm, iosystems, rearr_opts=pio_rearr_opts)
+       call pio_init(total_comps,mpi_comm_world, comp_comm, io_comm, iosystems)
+       do i=1,total_comps
+         ret =  pio_set_rearr_opts(iosystems(i), pio_rearr_opt_comm_type,&
+                  pio_rearr_opt_fcd,&
+                  pio_rearr_opt_c2i_enable_hs, pio_rearr_opt_c2i_enable_isend,&
+                  pio_rearr_opt_c2i_max_pend_req,&
+                  pio_rearr_opt_i2c_enable_hs, pio_rearr_opt_i2c_enable_isend,&
+                  pio_rearr_opt_i2c_max_pend_req)
+         if(ret /= PIO_NOERR) then
+            write(shr_log_unit,*) "ERROR: Setting rearranger options failed"
+         end if
+       end do
 
 #else
        call pio_init(total_comps,mpi_comm_world, comp_comm, io_comm, iosystems)
@@ -199,7 +215,16 @@ subroutine shr_pio_init2(comp_id, comp_name, comp_iamin, comp_comm, comp_comm_ia
              call pio_init(comp_comm_iam(i), comp_comm(i), pio_comp_settings(i)%pio_numiotasks, 0, &
                   pio_comp_settings(i)%pio_stride, &
                   pio_comp_settings(i)%pio_rearranger, iosystems(i), &
-                  base=pio_comp_settings(i)%pio_root, rearr_opts=pio_rearr_opts)
+                  base=pio_comp_settings(i)%pio_root)
+             ret = pio_set_rearr_opts(iosystems(i), pio_rearr_opt_comm_type,&
+                    pio_rearr_opt_fcd,&
+                    pio_rearr_opt_c2i_enable_hs, pio_rearr_opt_c2i_enable_isend,&
+                    pio_rearr_opt_c2i_max_pend_req,&
+                    pio_rearr_opt_i2c_enable_hs, pio_rearr_opt_i2c_enable_isend,&
+                    pio_rearr_opt_i2c_max_pend_req)
+             if(ret /= PIO_NOERR) then
+                write(shr_log_unit,*) "ERROR: Setting rearranger options failed"
+             end if
              if(comp_comm_iam(i)==0) then
                 write(shr_log_unit,*) io_compname(i),' : pio_numiotasks = ',pio_comp_settings(i)%pio_numiotasks
                 write(shr_log_unit,*) io_compname(i),' : pio_stride = ',pio_comp_settings(i)%pio_stride
@@ -782,29 +807,29 @@ subroutine shr_pio_rearr_opts_set(comm, pio_rearr_comm_type, pio_rearr_comm_fcd,
     ! buf(6) = max_pend_req_io2comp
     ! buf(7) = enable_hs_io2comp
     ! buf(8) = enable_isend_io2comp
-    pio_rearr_opts%comm_type = buf(1)
-    pio_rearr_opts%fcd = buf(2)
-    pio_rearr_opts%comm_fc_opts_comp2io%max_pend_req = buf(3)
+    pio_rearr_opt_comm_type = buf(1)
+    pio_rearr_opt_fcd = buf(2)
+    pio_rearr_opt_c2i_max_pend_req = buf(3)
     if(buf(4) == 0) then
-      pio_rearr_opts%comm_fc_opts_comp2io%enable_hs = .false.
+      pio_rearr_opt_c2i_enable_hs = .false.
     else
-      pio_rearr_opts%comm_fc_opts_comp2io%enable_hs = .true.
+      pio_rearr_opt_c2i_enable_hs = .true.
     end if
     if(buf(5) == 0) then
-      pio_rearr_opts%comm_fc_opts_comp2io%enable_isend = .false.
+      pio_rearr_opt_c2i_enable_isend = .false.
     else
-      pio_rearr_opts%comm_fc_opts_comp2io%enable_isend = .true.
+      pio_rearr_opt_c2i_enable_isend = .true.
     end if
-    pio_rearr_opts%comm_fc_opts_io2comp%max_pend_req = buf(6)
+    pio_rearr_opt_i2c_max_pend_req = buf(6)
     if(buf(7) == 0) then
-      pio_rearr_opts%comm_fc_opts_io2comp%enable_hs = .false.
+      pio_rearr_opt_i2c_enable_hs = .false.
     else
-      pio_rearr_opts%comm_fc_opts_io2comp%enable_hs = .true.
+      pio_rearr_opt_i2c_enable_hs = .true.
     end if
     if(buf(8) == 0) then
-      pio_rearr_opts%comm_fc_opts_io2comp%enable_isend = .false.
+      pio_rearr_opt_i2c_enable_isend = .false.
     else
-      pio_rearr_opts%comm_fc_opts_io2comp%enable_isend = .true.
+      pio_rearr_opt_i2c_enable_isend = .true.
     end if
   end subroutine
 !===============================================================================