remove png files from benchmarks and fix .gitignore to enforce
check for valid boundary_handling -- test added
first order implementation of python side clamping
some tests for python clamping
fix boundary problem calculation in ocl backend
more cleanup of library kernels
clamping indexing handled now for c backend, still need to fix interior points to now march into ghost zone when clamped
clamping now works with c backend with the interior points loop
wrote a simplistic test of clamping kernels
fixed bug in boundary test
HaloEnumerator works, a bit more cleanup to do
Some cleanup and comments added to halo stuff
tests for halo enumerator
looks good to 6 dimensions and more
Adding bilateral filter benchmark
some pep cleanup
put halo generation into Stencil
boundary handling copy now works for stencil with python backend
boundary handling copy now works for stencil with python backend
c backend now supports boundary_handling mode copy, which copies over values from in_grid to out_grid
some cleanup prepping for copy boundary handling under ocl
added test for ocl copy boundary handling, not working yet