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LLNL · Sep 27, 2024 · 418f60b · 418f60b
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diff --git a/doc/arkode/guide/source/Usage/LSRKStep/User_callable.rst b/doc/arkode/guide/source/Usage/LSRKStep/User_callable.rst
@@ -214,15 +214,14 @@ Optional output functions
 ------------------------------
 
 
-.. c:function:: int LSRKStepGetNumRhsEvals(void* arkode_mem, long int* fe_evals, long int* fi_evals);
+.. c:function:: int LSRKStepGetNumRhsEvals(void* arkode_mem, int num_rhs_fn, long int* f_evals);
 
-   Returns the number of calls to the user's right-hand
-   side functions, :math:`f^E` and :math:`f^I` (so far).
+   Returns the number of calls to the user's right-hand side functions.
 
    **Arguments:**
       * *arkode_mem* -- pointer to the LSRKStep memory block.
-      * *fe_evals* -- number of calls to the user's :math:`f^E(t,y)` function.
-      * *fi_evals* -- number of calls to the user's :math:`f^I(t,y)` function.
+      * *num_rhs_fn* -- number of input  RHS functions.
+      * *f_evals* -- number of calls to the user's :math:`f(t,y)` function.
 
    **Return value:**
       * *ARK_SUCCESS* if successful

diff --git a/include/arkode/arkode_lsrkstep.h b/include/arkode/arkode_lsrkstep.h
@@ -81,8 +81,7 @@ SUNDIALS_EXPORT int LSRKStepSetSSPStageNum(void* arkode_mem, int num_of_stages);
 
 /* Optional output functions */
 
-SUNDIALS_EXPORT int LSRKStepGetNumRhsEvals(void* arkode_mem, long int* fe_evals,
-                                           long int* fi_evals);
+SUNDIALS_EXPORT int LSRKStepGetNumRhsEvals(void* arkode_mem, int num_rhs_fn, long int* f_evals);
 
 SUNDIALS_EXPORT int LSRKStepGetNumDomEigUpdates(void* arkode_mem,
                                                 long int* num_dom_eig_updates);

diff --git a/src/arkode/arkode_lsrkstep_io.c b/src/arkode/arkode_lsrkstep_io.c
@@ -325,8 +325,7 @@ int LSRKStepSetSSPStageNum(void* arkode_mem, int num_of_stages)
 
   Returns the current number of calls to f
   ---------------------------------------------------------------*/
-int LSRKStepGetNumRhsEvals(void* arkode_mem, long int* fe_evals,
-                           long int* fi_evals)
+int LSRKStepGetNumRhsEvals(void* arkode_mem, int num_rhs_fn, long int* f_evals)
 {
   ARKodeMem ark_mem;
   ARKodeLSRKStepMem step_mem;
@@ -338,8 +337,7 @@ int LSRKStepGetNumRhsEvals(void* arkode_mem, long int* fe_evals,
   if (retval != ARK_SUCCESS) { return (retval); }
 
   /* get values from step_mem */
-  *fe_evals = step_mem->nfe;
-  *fi_evals = step_mem->nfi;
+  *f_evals = step_mem->nfe;
 
   return (ARK_SUCCESS);
 }