DCHKAA is the main test program for the DOUBLE PRECISION LAPACK


 linear equation routines


 The program must be driven by a short data file. The first 15 records


 (not including the first comment  line) specify problem dimensions


 and program options using list-directed input. The remaining lines


 specify the LAPACK test paths and the number of matrix types to use


 in testing.  An annotated example of a data file can be obtained by


 deleting the first 3 characters from the following 40 lines:


 Data file for testing DOUBLE PRECISION LAPACK linear eqn. routines


 7                      Number of values of M


 0 1 2 3 5 10 16        Values of M (row dimension)


 7                      Number of values of N


 0 1 2 3 5 10 16        Values of N (column dimension)


 1                      Number of values of NRHS


 2                      Values of NRHS (number of right hand sides)


 5                      Number of values of NB


 1 3 3 3 20             Values of NB (the blocksize)


 1 0 5 9 1              Values of NX (crossover point)


 3                      Number of values of RANK


 30 50 90               Values of rank (as a % of N)


 20.0                   Threshold value of test ratio


 T                      Put T to test the LAPACK routines


 T                      Put T to test the driver routines


 T                      Put T to test the error exits


 DGE   11               List types on next line if 0 < NTYPES < 11


 DGB    8               List types on next line if 0 < NTYPES <  8


 DGT   12               List types on next line if 0 < NTYPES < 12


 DPO    9               List types on next line if 0 < NTYPES <  9


 DPS    9               List types on next line if 0 < NTYPES <  9


 DPP    9               List types on next line if 0 < NTYPES <  9


 DPB    8               List types on next line if 0 < NTYPES <  8


 DPT   12               List types on next line if 0 < NTYPES < 12


 DSY   10               List types on next line if 0 < NTYPES < 10


 DSR   10               List types on next line if 0 < NTYPES < 10


 DSK   10               List types on next line if 0 < NTYPES < 10


 DSA   10               List types on next line if 0 < NTYPES < 10


 DS2   10               List types on next line if 0 < NTYPES < 10


 DSP   10               List types on next line if 0 < NTYPES < 10


 DTR   18               List types on next line if 0 < NTYPES < 18


 DTP   18               List types on next line if 0 < NTYPES < 18


 DTB   17               List types on next line if 0 < NTYPES < 17


 DQR    8               List types on next line if 0 < NTYPES <  8


 DRQ    8               List types on next line if 0 < NTYPES <  8


 DLQ    8               List types on next line if 0 < NTYPES <  8


 DQL    8               List types on next line if 0 < NTYPES <  8


 DQP    6               List types on next line if 0 < NTYPES <  6


 DTZ    3               List types on next line if 0 < NTYPES <  3


 DLS    6               List types on next line if 0 < NTYPES <  6


 DEQ


 DQT


 DQX


 DTQ


 DXQ


 DTS


 DHH

  NMAX    INTEGER


          The maximum allowable value for M and N.


  MAXIN   INTEGER


          The number of different values that can be used for each of


          M, N, NRHS, NB, NX and RANK


  MAXRHS  INTEGER


          The maximum number of right hand sides


  MATMAX  INTEGER


          The maximum number of matrix types to use for testing


  NIN     INTEGER


          The unit number for input


  NOUT    INTEGER


          The unit number for output

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