On Wed, 4 Dec 2019 at 20:59, Joseph Heled <jhe...@gmail.com> wrote: > An 8 "core" machine, i.e. fake intel count number > > $ grep -m1 '^model name' /proc/cpuinfo > model name : Intel(R) Core(TM) i7-4810MQ CPU @ 2.80GHz > > in debian rules file: > SSE = --enable-simd=avx --enable-simd=sse2 --enable-threads -with-gtk > --with-board3d --with-python > compiled with gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0 -O3 > > position id: 4NvBGECYr8ELAA:MBngAAAAIAAE > > rollout cube action: > > So make this sse2.
> 8 threads: 93 seconds > 4 threads: 100 seconds On stock debian: 111 seconds > 2 threads: 172 seconds > 1 thread: 312 > with avx, 8 threads: 81 seconds and 99 seconds with 4 threads, so maybe a small improvement, maybe not. > -Joseph > > > On Wed, 4 Dec 2019 at 20:29, Ralph Corderoy <ra...@inputplus.co.uk> wrote: > > > > Hi Joseph, > > > > > What we really need is someone with access to some computing power > > > (aka grid) to run a set of reference positions - 0-ply cube decisions > > > vs 2-ply, and see what the difference is. That would give a hint as to > > > what to do. > > > > How about reporting your > > > > grep -m1 '^model name' /proc/cpuinfo > > > > along with the stock Ubuntu package version's time on a reference > > position when given 1, 2, ... threads. And then you're self-compiled > > version for comparison, noting what you changed in debian/rules. > > > > It would be a start, and also offer some precision so if something is > > awry then others on the list may have data to judge by. > > > > -- > > Cheers, Ralph. > > >
