dsecnd - return the user time for a process in seconds
     DOUBLE PRECISION FUNCTION DSECND()
     DOUBLE PRECISION FUNCTION DSECND_64()
  F95 INTERFACE
     REAL(8) FUNCTION DSECND()
     REAL(8) FUNCTION DSECND_64()
  C INTERFACE
     #include <sunperf.h>
     double dsecnd();
     double dsecnd_64();
     dsecnd returns the user time for a process in seconds.  This
     version gets the time from the system function ETIME.