Fix possible request_cancel on MPI_REQUEST_NULL

Matthew-Whitlock · Matthew-Whitlock · commit e97c6c9616f4 · 2024-11-14T15:35:14.000-05:00
diff --git a/src/fenix_process_recovery.c b/src/fenix_process_recovery.c
@@ -819,7 +819,7 @@ void __fenix_finalize_spare()
         }
     }
 
-    MPI_Cancel(&recv_req);
+    if(recv_req != MPI_REQUEST_NULL) MPI_Cancel(&recv_req);
  
     MPI_Op_free(&fenix.agree_op);
     MPI_Comm_set_errhandler(*fenix.world, MPI_ERRORS_ARE_FATAL);

Original file line number	Diff line number	Diff line change
`@@ -819,7 +819,7 @@ void __fenix_finalize_spare()`
`819`	`819`	`}`
`820`	`820`	`}`
`821`	`821`
`822`		`- MPI_Cancel(&recv_req);`
	`822`	`+ if(recv_req != MPI_REQUEST_NULL) MPI_Cancel(&recv_req);`
`823`	`823`
`824`	`824`	`MPI_Op_free(&fenix.agree_op);`
`825`	`825`	`MPI_Comm_set_errhandler(*fenix.world, MPI_ERRORS_ARE_FATAL);`