GitLab

Fixes uninitialized bits occurring in the PaddedNumAtoms regions by properly constructing them. This should hopefully get rid of some of the NaN errors we've been seeing.

OpenCLArray is no longer templatized and doesn't provide a host buffer.  This is in preparation for adding mixed/double precision support.

Workaround for Nvidia compiler bug where compute level 1.2 processors try to compile double precision code

On Fermi, store forces as 64 bit fixed point and update with atomic operations.  Also various other minor optimizations.

Change suggested by Tony Tye to simplify debugging by including all compilation options in the kernel source

Only use the atomic version of charge spreading on compute level 2.0 or later, since it is slower than the other version on earlier GPUs.