Dahua Lin's post at http://julialang.org/blog/2013/09/fast-numeric/ might be helpful.
On Sunday, July 20, 2014 11:41:19 AM UTC-4, Andrei Zh wrote: > > Recently I found that my application spends ~65% of time in garbage > collector. I'm looking for ways to reduce amount of memory produced by > intermediate results. > For example, I found that "A * B" may be changed to "A_mul_B!(out, A, B)" > that uses preallocated "out" buffer and thus almost eliminates additional > memory allocation. But my application still produces lots of garbage on > operations like matrix addition/subtraction, multiplication by scalar, etc. > > Are there any other tricks that allow to decrease memory usage? >
