changes to avoid PMPI_Scatterv: Invalid buffer pointer in Intel MPI

diff --git a/source/unres/src_MD/lagrangian_lesyng.F b/source/unres/src_MD/lagrangian_lesyng.F
index 8a9163a..775142b 100644 (file)
--- a/source/unres/src_MD/lagrangian_lesyng.F
+++ b/source/unres/src_MD/lagrangian_lesyng.F
@@ -499,7 +499,7 @@ c---------------------------------------------------------------------------
       include 'COMMON.TIME1'
       include 'COMMON.MD'
       double precision z(dimen3),d_a_tmp(dimen3),temp(maxres6),time00
-     &time01
+     &,time01,zcopy(dimen3)
 #ifdef MPI
       if (nfgtasks.gt.1) then
         if (fg_rank.eq.0) then
@@ -520,7 +520,10 @@ c        call MPI_Barrier(FG_COMM,IERROR)
         time00=MPI_Wtime()
         call MPI_Scatterv(z,ng_counts(0),ng_start(0),
      &    MPI_DOUBLE_PRECISION,
-     &    z,3*my_ng_count,MPI_DOUBLE_PRECISION,king,FG_COMM,IERR)
+     &    zcopy,3*my_ng_count,MPI_DOUBLE_PRECISION,king,FG_COMM,IERR)
+         do i=1,3*my_ng_count
+           z(i)=zcopy(i)
+         enddo
 c        write (2,*) "My chunk of z"
 c        do i=1,3*my_ng_count
 c          write (2,*) i,z(i)
@@ -651,7 +654,7 @@ c---------------------------------------------------------------------------
       include 'COMMON.LANGEVIN.lang0'
 #endif
       double precision z(dimen3),d_a_tmp(dimen3),temp(maxres6),time00
-     &time01
+     &,time01,zcopy(dimen3)
 #ifdef MPI
       if (nfgtasks.gt.1) then
         if (fg_rank.eq.0) then
@@ -665,7 +668,11 @@ c        call MPI_Barrier(FG_COMM,IERROR)
         time00=MPI_Wtime()
         call MPI_Scatterv(z,ng_counts(0),ng_start(0),
      &    MPI_DOUBLE_PRECISION,
-     &    z,3*my_ng_count,MPI_DOUBLE_PRECISION,king,FG_COMM,IERR)
+     &    zcopy,3*my_ng_count,MPI_DOUBLE_PRECISION,king,FG_COMM,IERR)
+
+         do i=1,3*my_ng_count
+          z(i)=zcopy(i)
+         enddo
 c        write (2,*) "My chunk of z"
 c        do i=1,3*my_ng_count
 c          write (2,*) i,z(i)