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DLASRT2(l)                             )                            DLASRT2(l)

NAME
       DLASRT2 - the numbers in D in increasing order (if ID = 'I') or in
       decreasing order (if ID = 'D' )

SYNOPSIS
       SUBROUTINE DLASRT2( ID, N, D, KEY, INFO )
           CHARACTER ID
           INTEGER INFO, N
           INTEGER KEY( * )
           DOUBLE PRECISION D( * )

PURPOSE
       Sort the numbers in D in increasing order (if ID = 'I') or in
       decreasing order (if ID = 'D' ).  Use Quick Sort, reverting to
       Insertion sort on arrays of
       size <= 20. Dimension of STACK limits N to about 2**32.

ARGUMENTS
       ID      (input) CHARACTER*1
               = 'I': sort D in increasing order;
               = 'D': sort D in decreasing order.

       N       (input) INTEGER
               The length of the array D.

       D       (input/output) DOUBLE PRECISION array, dimension (N)
               On entry, the array to be sorted.  On exit, D has been sorted
               into increasing order (D(1) <= ... <= D(N) ) or into decreasing
               order (D(1) >= ... >= D(N) ), depending on ID.

       KEY     (input/output) INTEGER array, dimension (N)
               On entry, KEY contains a key to each of the entries in D()
               Typically, KEY(I) = I for all I On exit, KEY is permuted in
               exactly the same manner as D() was permuted from input to
               output Therefore, if KEY(I) = I for all I upon input, then
               D_out(I) = D_in(KEY(I))

       INFO    (output) INTEGER
               = 0:  successful exit
               < 0:  if INFO = -i, the i-th argument had an illegal value

ScaLAPACK version 1.7           13 August 2001                      DLASRT2(l)