----- Ricardo Wurmus <ricardo.wur...@mdc-berlin.de> wrote: > python-numpy currently depends on Atlas, which means that it cannot be > substituted with a binary built elsewhere. OpenBLAS is an alternative > to Atlas and the binary can be used on all supported CPUs at runtime. > This makes it possible for us to make numpy substitutable. [...] > Anyway, I just wanted to post this here to ask for opinions. Maybe this > is a bad idea. (In my case it makes sense not to use Atlas, because the > compile-time tuning is useless when a shared store is used and clients > use Atlas on machines other than the build host.) >
I would very much like to see OpenBLAS substituted for atlas whereever possible. The runtime performance of OpenBLAS is quite a bit better than ATLAS. I've seen e.g. OpenBLAS to be roughly 20% faster than ATLAS for GEMM calls on Sandybridge platforms. `~Eric
