+ int time_steps; /* amount of iterations */
+ double tau; /* delta t */
+ double tau_square; /* delta t squared */
+ double elapsed; /* total elapsed time */
+
+ double energy; /* energy */
+
+ t_visual vis; /* visualization/log/save interface structure */
+ u8 lvstat; /* log & vis properties */
+ unsigned int ewrite; /* how often to log energy */
+ char efb[64]; /* energy log filename */
+ int efd; /* fd for energy log */
+ unsigned int mwrite; /* how often to log momentum */
+ char mfb[64]; /* momentum log filename */
+ int mfd; /* fd for momentum log */
+ unsigned int vwrite; /* how often to visualize atom information */
+ char vfb[64]; /* visualization file name base */
+ void *visual; /* pointer (hack!) */
+ unsigned int swrite; /* how often to create a save file */
+
+ u8 status; /* general moldyn properties */
+
+ t_random random; /* random interface */