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FDS Source: Issue #14281. Limit MPI particle exchange to separate nodes #14287

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Merged
mcgratta merged 1 commit into from
Feb 27, 2025
Merged

FDS Source: Issue #14281. Limit MPI particle exchange to separate nodes #14287

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4 changes: 2 additions & 2 deletions Source/main.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -2660,7 +2660,7 @@ SUBROUTINE POST_RECEIVES(CODE)

! Set up persistent receive requests

IF (MPI_PARTICLE_EXCHANGE) THEN
IF (MPI_PARTICLE_EXCHANGE .AND. RNODE/=SNODE) THEN
OS => M3%PARTICLE_RECV_BUFFER
N_REQ2=N_REQ2+1 ; CALL MPI_RECV_INIT(OS%N_ITEMS ,1,MPI_INTEGER,SNODE,NOM,MPI_COMM_WORLD,REQ2(N_REQ2),IERR)
N_REQ2=N_REQ2+1 ; CALL MPI_RECV_INIT(OS%N_REALS ,1,MPI_INTEGER,SNODE,NOM,MPI_COMM_WORLD,REQ2(N_REQ2),IERR)
Expand Down Expand Up @@ -2871,7 +2871,7 @@ SUBROUTINE MESH_EXCHANGE(CODE)

! Initialize persistent send requests

IF (MPI_PARTICLE_EXCHANGE) THEN
IF (MPI_PARTICLE_EXCHANGE .AND. RNODE/=SNODE) THEN
OS => M3%PARTICLE_SEND_BUFFER
N_REQ2=N_REQ2+1 ; CALL MPI_SEND_INIT(OS%N_ITEMS ,1,MPI_INTEGER,RNODE,NM,MPI_COMM_WORLD,REQ2(N_REQ2),IERR)
N_REQ2=N_REQ2+1 ; CALL MPI_SEND_INIT(OS%N_REALS ,1,MPI_INTEGER,RNODE,NM,MPI_COMM_WORLD,REQ2(N_REQ2),IERR)
Expand Down