Actually -cpi and -bcpo must not be identical

Change-Id: Iac44c2dc7d7add1f951ff6018bbfaabe8160af25

diff --git a/src/tools/gmx_tune_pme.c b/src/tools/gmx_tune_pme.c
index 318738757d4f2637866794d6add1e831d714f2f2..5e00f8351da548a9d643f934c131d0540f3970cd 100644 (file)
--- a/src/tools/gmx_tune_pme.c
+++ b/src/tools/gmx_tune_pme.c
@@ -1578,10 +1578,11 @@ static void check_input(
     if (!gmx_fexist(opt2fn("-s",nfile,fnm)))
         gmx_fatal(FARGS, "File %s not found.", opt2fn("-s",nfile,fnm));
     
-    /* Make sure that the checkpoint file is not overwritten by the benchmark runs */
-    if ( (0 == strcmp(opt2fn("-cpi",nfile,fnm), opt2fn("-cpo",nfile,fnm)) ) && (sim_part > 1) )
-        gmx_fatal(FARGS, "Checkpoint input and output file must not be identical,\nbecause then the input file might change during the benchmarks.");
-    
+    /* Make sure that the checkpoint file is not overwritten during benchmarking */
+    if ( (0 == strcmp(opt2fn("-cpi",nfile,fnm), opt2fn("-bcpo",nfile,fnm)) ) && (sim_part > 1) )
+        gmx_fatal(FARGS, "Checkpoint input (-cpi) and benchmark checkpoint output (-bcpo) files must not be identical.\n"
+                         "The checkpoint input file must not be overwritten during the benchmarks.\n");
+
     /* Make sure that repeats is >= 0 (if == 0, only write tpr files) */
     if (repeats < 0)
         gmx_fatal(FARGS, "Number of repeats < 0!");