Here's the correct benchmark script, https://gist.github.com/isuruf/857e2236d2443ebd9085273b3e6ada3b
Isuru On Fri, Aug 27, 2021 at 2:14 PM Isuru Fernando <isu...@gmail.com> wrote: > Hi, > > On Fri, Aug 27, 2021 at 1:23 PM William Stein <wst...@gmail.com> wrote: > >> Hello Isuru -- thanks for popping in to comment! >> >> On Fri, Aug 27, 2021 at 10:56 AM Isuru Fernando <isu...@gmail.com> wrote: >> > >> > Hi, >> > >> > A SymEngine maintainer here. >> > >> > > Pynac has a lot of I think nontrivial efficient hooks back into Sage >> > for working with various data types, and doing things like equality >> > testing, fast evaluation of expression (fast_float, etc.), >> > >> > With SymEngine, we do have fast evaluation of expressions with >> > several backends. One backend is LLVM, where we compile the function >> > using LLVM and generate a callable C function using that. >> >> Wow, that's very cool. Do you know how it compares to Sage's >> fast_float and fast_callable "compilers" in terms of speed? Sage's >> don't actually depend on having LLVM installed (they aren't compiling >> to machine code), so I assume might be significantly slower, except >> that the people (=Robert Bradshaw) who wrote them are very clever, so >> you never know. It's probably also interesting to benchmark the >> compile time itself. >> > > I've attached a small script that I put together just now. Note how we can > pass sage expressions in symbolic ring to symengine functions. > > Timings are below. First one is sage and the second is symengine. > > one element > 625 loops, best of 3: 68 μs per loop > 625 loops, best of 3: 12.9 μs per loop > > create an output numpy array of 1000 elements > 5 loops, best of 3: 175 ms per loop > 625 loops, best of 3: 18.1 μs per loop > > compile time > 625 loops, best of 3: 478 μs per loop > 125 loops, best of 3: 2.69 ms per loop > > SymEngine LLVM backend has optimization levels (0, 1, 2, 3). 3 is the > default. > By setting to optimization level 0, compile time is half with a > performance penalty > of around 10%. > > Isuru > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/CA%2B01voMGc5aayc%2BuAdjNa-orR%3D0cWjiZqqpFSwsDuk-NDKw%2Bxw%40mail.gmail.com.
