Send actual filename to checkpoint creator

Author: ndevelder

glue-codes/openfast-cpp/src/OpenFAST.cpp

@@ -1360,7 +1360,7 @@ void fast::OpenFAST::advance_to_next_driver_time_step(bool writeFiles) {
       for (int iTurb=0; iTurb < nTurbinesProc; iTurb++) {
           int tStepRatio = time_step_ratio(dtFAST, dtDriver);
           if ( (restartFreq_*tStepRatio > 0) && (((nt_global - ntStart) % (restartFreq_*tStepRatio)) == 0 )  && (nt_global != ntStart) ) {
-              turbineData[iTurb].FASTRestartFileName = " "; // if blank, it will use FAST convention <RootName>.nt_global
+                turbineData[iTurb].FASTRestartFileName = turbineData[iTurb].outFileRoot + "." + std::to_string(nt_global); // if blank, it will use FAST convention <RootName>.nt_global
               FAST_CreateCheckpoint(&iTurb, turbineData[iTurb].FASTRestartFileName.data(), &ErrStat, ErrMsg);
               checkError(ErrStat, ErrMsg);
               writeRestartFile(iTurb, nt_global);
@@ -1521,7 +1521,7 @@ void fast::OpenFAST::step(bool writeFiles) {
         int tStepRatio = time_step_ratio(dtFAST, dtDriver);
         for (int iTurb=0; iTurb < nTurbinesProc; iTurb++) {
             if ( (((nt_global - ntStart) % (restartFreq_ * tStepRatio)) == 0 )  && (nt_global != ntStart) ) {
-                turbineData[iTurb].FASTRestartFileName = " "; // if blank, it will use FAST convention <RootName>.nt_global
+                turbineData[iTurb].FASTRestartFileName = turbineData[iTurb].outFileRoot + "." + std::to_string(nt_global); // if blank, it will use FAST convention <RootName>.nt_global
                 FAST_CreateCheckpoint(&iTurb, turbineData[iTurb].FASTRestartFileName.data(), &ErrStat, ErrMsg);
                 checkError(ErrStat, ErrMsg);
                 writeRestartFile(iTurb, nt_global);