Add tunable eigenvalues_only to elpa_index.c

src/elpa_index.c

@@ -139,6 +139,7 @@ static const elpa_index_int_entry_t int_entries[] = {
         BOOL_ENTRY("timings", "Enable time measurement", 0),
         BOOL_ENTRY("debug", "Emit verbose debugging messages", 0),
         BOOL_ENTRY("print_flops", "Print FLOP rates on task 0", 0),
+        BOOL_ENTRY("eigenvalues_only", "Only compute the eigenvalues and return", 0),
 };
 
 #define READONLY_DOUBLE_ENTRY(option_name, option_description) \