integer ireg(4,ntx,nty)
if ( ireg(1,bi,bj)*ireg(2,bi,bj).gt.0 ) then
my_tile_nx(num_tiles)=ireg(1,bi,bj)
my_tile_ny(num_tiles)=ireg(2,bi,bj)
my_tile_i0(num_tiles)=ireg(3,bi,bj)
my_tile_j0(num_tiles)=ireg(4,bi,bj)
& ' nx,ny=',ireg(1,bi,bj),ireg(2,bi,bj)
subroutine MITCOMPONENT_TILE_REGISTER( ntx, nty, ireg, rreg )