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/usr/share/scalapack/TRD.dat is in scalapack-test-common 1.8.0-9build1.

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The actual contents of the file can be viewed below.

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'ScaLAPACK TRD computation input file'
'MPI machine'
'TRD.out'		output file name
6                       device out
'L'			define Lower or Upper
4                       number of problems sizes
16 50 6 11 21 22 23	values of N
4                       number of NB's
1 2 3 4 5		values of NB
3                       Number of processor grids (ordered pairs of P & Q)
1 1 4 2 1 3 1 		values of P
1 4 1 2 3 1 1 		values of Q
10.0			threshold