Is EINSTEIN client OPTIMIZED for speed?

It's optimized for speed as far we could get as long as the results stay correct within tolerances we found acceptable. Some calculations still need to be done in double precision, which means we can not make much use of e.g. SSE. It looks like the MSC compiler makes the most of our (C) code, so the Windows version is somewhat faster than the Linux & Mac versions (built with gcc). We didn't find a significant improvement with icc. When things have settled down a bit and became more stable, we may address this issue again. You may want to take a look at this old thread.

BM