'ScaLAPACK LLS input file' 'MPI machine' 'LS.out' output file name (if any) 6 device out 3 number of problems sizes 55 17 31 values of M 5 71 31 values of N 3 number of NB's 2 3 5 values of NB 3 number of NRHS's 2 3 5 values of NRHS 2 number of NBRHS's 1 2 values of NBRHS 4 number of process grids (ordered pairs P & Q) 1 2 1 4 2 3 8 values of P 1 2 4 1 3 2 1 values of Q 4.0 threshold