Also use DD partitioning in serial

[alexxy/gromacs.git] / src / gromacs / mdrun / shellfc.cpp

diff --git a/src/gromacs/mdrun/shellfc.cpp b/src/gromacs/mdrun/shellfc.cpp
index 1284b62fb5187d95cc4a705c80b113fe677680c9..7f15b180bc8bbe9d811eb54b6d7ced370665eebf 100644 (file)
--- a/src/gromacs/mdrun/shellfc.cpp
+++ b/src/gromacs/mdrun/shellfc.cpp
@@ -287,7 +287,7 @@ gmx_shellfc_t* init_shell_flexcon(FILE*             fplog,
                   "not supported in combination with shell particles.\nPlease make a new tpr file.",
                   nstcalcenergy);
     }
-    if (usingDomainDecomposition)
+    if (nshell > 0 && usingDomainDecomposition)
     {
         gmx_fatal(
                 FARGS,