spmd_min_max.F

Go to the documentation of this file.

Copyright>        OpenRadioss
Copyright>        Copyright (C) 1986-2025 Altair Engineering Inc.
Copyright>
Copyright>        This program is free software: you can redistribute it and/or modify
Copyright>        it under the terms of the GNU Affero General Public License as published by
Copyright>        the Free Software Foundation, either version 3 of the License, or
Copyright>        (at your option) any later version.
Copyright>
Copyright>        This program is distributed in the hope that it will be useful,
Copyright>        but WITHOUT ANY WARRANTY; without even the implied warranty of
Copyright>        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Copyright>        GNU Affero General Public License for more details.
Copyright>
Copyright>        You should have received a copy of the GNU Affero General Public License
Copyright>        along with this program.  If not, see <https://www.gnu.org/licenses/>.
Copyright>
Copyright>
Copyright>        Commercial Alternative: Altair Radioss Software
Copyright>
Copyright>        As an alternative to this open-source version, Altair also offers Altair Radioss
Copyright>        software under a commercial license.  Contact Altair to discuss further if the
Copyright>        commercial version may interest you: https://www.altair.com/radioss/.
!||====================================================================
!||    spmd_min_max          ../engine/source/mpi/anim/spmd_min_max.F
!||--- called by ------------------------------------------------------
!||    scanor                ../engine/source/output/anim/generate/scanor.F
!||--- calls      -----------------------------------------------------
!||--- uses       -----------------------------------------------------
!||    spmd_comm_world_mod   ../engine/source/mpi/spmd_comm_world.F90
!||====================================================================
      SUBROUTINE spmd_min_max(X1,Y1,Z1,X2,Y2,Z2)
C spmd_min_max calculates the minimum of the real numbers X1, Y1, Z1 and the
C maximum of the real numbers X2, Y2, Z2 on p0
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
        USE spmd_comm_world_mod, ONLY : spmd_comm_world
#include      "implicit_f.inc"
C-----------------------------------------------
C   M e s s a g e   P a s s i n g
C-----------------------------------------------
#include "spmd.inc"
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
#include      "task_c.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
C   REAL*4 ou REAL*8
      my_real
     .  x1, y1, z1, x2, y2, z2
C-----------------------------------------------
C   L o c a l  V a r i a b l e s
C-----------------------------------------------
#ifdef MPI
      INTEGER IERROR
      my_real
     .  tmp1(3),tmpo(3)
C-----------------------------------------------
C   S o u r c e  L i n e s
C-----------------------------------------------
      tmp1(1) = x1
      tmp1(2) = y1
      tmp1(3) = z1
      call mpi_allreduce(tmp1,tmpo,3,real,
     .                   mpi_min,
     .                   spmd_comm_world,ierror)
      x1 = tmpo(1)
      y1 = tmpo(2)
      z1 = tmpo(3)
C
      tmp1(1)=x2
      tmp1(2)=y2
      tmp1(3)=z2
      call mpi_allreduce(tmp1,tmpo,3,real,
     .                   mpi_max,
     .                   spmd_comm_world,ierror)
      x2 = tmpo(1)
      y2 = tmpo(2)
      z2 = tmpo(3)
 
C
#endif
      RETURN
      END