Re: [Gretl-devel] matrix_perf results

Right you are, Allin. The first test was pretty much the first thing I did after booting up my computer. 2 subsequent runs show near-total openblas domination: 6/6 cases in one run, 5/6 in the other. The lone exception was dgemm experiment 2, variant 2, speed in Gflops m n k vanilla openmp openblas 10 2 1000 1.1782 0.77966 2.1771 20 2 1000 1.3308 0.99745 2.6331 40 2 1000 1.3111 1.3642 2.7879 80 2 1000 1.0477 1.4362 2.8529 160 2 1000 1.2724 1.8858 2.6338 320 2 1000 1.1903 1.8180 2.4244 640 2 1000 1.1162 1.6754 1.6777 1280 2 1000 1.1157 1.6019 1.5981 2560 2 1000 1.0857 1.7744 1.7199 5120 2 1000 1.1078 1.6811 1.7112 result: openblas dominates for mnk >= 10240000 PS -----Original Message----- From: gretl-devel-bounces(a)lists.wfu.edu [mailto:gretl-devel-bounces@lists.wfu.edu] On Behalf Of Allin Cottrell Sent: Wednesday, June 18, 2014 2:44 PM To: Gretl development Subject: Re: [Gretl-devel] matrix_perf results On Wed, 18 Jun 2014, Summers, Peter wrote: Thanks, Peter, this is encouraging with regard to the new Windows build. Maybe this is worth trying for 32-bit Windows too. Small comment: that poor result from openblas on the very first test is probably just a matter of warming up the machine's vector registers; if you were to run it a second time you'd probably see openblas dominating from the get-go. [...] Allin _______________________________________________ Gretl-devel mailing list Gretl-devel(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-devel