Merge "Improved warning note with DD and periodic molecules" into release-4-5-patches

diff --git a/src/mdlib/domdec.c b/src/mdlib/domdec.c
index b9fed1d2683ffeae60b297676a4dce0b07ec0717..3cf36b09c8db16dfb5a94aa063e65e42ebdfc4e8 100644 (file)
--- a/src/mdlib/domdec.c
+++ b/src/mdlib/domdec.c
@@ -6313,7 +6313,7 @@ gmx_domdec_t *init_domain_decomposition(FILE *fplog,t_commrec *cr,
         else if (ir->bPeriodicMols)
         {
             /* Can not easily determine the required cut-off */
-            dd_warning(cr,fplog,"NOTE: Periodic molecules: can not easily determine the required minimum bonded cut-off, using half the non-bonded cut-off\n");
+            dd_warning(cr,fplog,"NOTE: Periodic molecules are present in this system. Because of this, the domain decomposition algorithm cannot easily determine the minimum cell size that it requires for treating bonded interactions. Instead, domain decomposition will assume that half the non-bonded cut-off will be a suitable lower bound.\n");
             comm->cutoff_mbody = comm->cutoff/2;
             r_bonded_limit = comm->cutoff_mbody;
         }