[1D] Add 'clearStats' function for clearing accumulated solver stats

include/cantera/oneD/OneDim.h

@@ -241,6 +241,9 @@ public:
      */
     void saveStats();
 
+    //! Clear saved statistics
+    void clearStats();
+
     //! Set a function that will be called every time #eval is called.
     //! Can be used to provide keyboard interrupt support in the high-level
     //! language interfaces.

interfaces/cython/cantera/_cantera.pxd

@@ -462,6 +462,7 @@ cdef extern from "cantera/oneD/Sim1D.h":
         void save(string, string, string, int) except +
         void restore(string, string, int) except +
         void writeStats(int) except +
+        void clearStats()
         int domainIndex(string) except +
         double value(size_t, size_t, size_t) except +
         double workValue(size_t, size_t, size_t) except +

interfaces/cython/cantera/onedim.pyx

@@ -787,5 +787,11 @@ cdef class Sim1D:
         """
         self.sim.writeStats(print_time)
 
+    def clear_stats(self):
+        """
+        Clear solver statistics.
+        """
+        self.sim.clearStats()
+
     def __dealloc__(self):
         del self.sim

src/oneD/OneDim.cpp

@@ -129,6 +129,17 @@ void OneDim::saveStats()
     }
 }
 
+void OneDim::clearStats()
+{
+    m_gridpts.clear();
+    m_jacEvals.clear();
+    m_jacElapsed.clear();
+    m_funcEvals.clear();
+    m_funcElapsed.clear();
+    m_nevals = 0;
+    m_evaltime = 0.0;
+}
+
 void OneDim::resize()
 {
     m_bw = 0;