function benchmark_dtmm (m, n, nvec)
description:
Dense transposed matrix-matrix and matrix-vector multiplication benchmark.
This is to test the "compound operators" feature introduced in Octave.
arguments:
m = row dimension of matrices
n = col dimension of matrices
nvec = number of vector op repeats
results:
time_tmm = Time for A'*B (A,B m-by-n matrices)
time_smm = Time for A'*A
time_mtm = Time for A*B' (A,B n-by-m matrices)
time_msm = Time for A*A'
time_tmv = Time for A'*v nvec-times (A m-by-n matrix)
ratio_tmv = Ratio to precomputed transpose time
time_mtv = Time for v*A' nvec-times (A m-by-n matrix)
ratio_mtv = Ratio to precomputed transpose time
