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/usr/lib/x86_64-linux-gnu/lapack/dstest.in is in liblapack-test 3.7.1-4ubuntu1.

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Data file for testing DSGESV/DSPOSV LAPACK routines
11                                      Number of values of M
0 1 2 13 17 45 78 91 101 120 132        Values of M (row dimension)
4                                       Number of values of NRHS
1 2 15 16                               Values of NRHS (number of right hand sides)
30.0                                    Threshold value of test ratio
T                                       Put T to test the driver routine
T                                       Put T to test the error exits
DGE 11                                  Number of matrix types to be tested, list types on next line if 0 < NTYPES < 11
DPO  9                                  Number of matrix types to be tested, list types on next line if 0 < NTYPES < 11