</PRE>
<PRE>
NPROW   (global output)               int *
        On exit,   NPROW  specifies the number of process rows in the
        grid. NPROW is at least one.
</PRE>
<PRE>
NPCOL   (global output)               int *
        On exit,   NPCOL  specifies  the number of process columns in
        the grid. NPCOL is at least one.
</PRE>
<PRE>
MYROW   (global output)               int *
        On exit,  MYROW  specifies my  row process  coordinate in the
        grid. MYROW is greater than or equal  to zero