[Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow

[Dmitri A. Sergatskov]

Follow-up Comment #15, bug #45890 (project octave):

I get numbers that are very similar to Rik's (oldish Xeon).


t =

   3.23645   3.28782   3.28776   3.32183   3.19292
   0.30566   0.32043   0.32495   0.30760   0.31066
   2.51998   2.52266   2.61129   2.49808   2.45491
   0.88806   0.88445   0.89706   0.85344   0.85099
   0.42461   0.41365   0.44222   0.41224   0.39768
   2.97178   3.02007   3.04358   2.98643   2.97333


I also noticed that it is all running single-thread
(though I expected A*x and A'*x to utilize 
multithreaded blas).

(this is with 4.4.1)

Dmitri.
-- 


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