Add tridiagonal solve
add block-tridiagonal (currently unstable)
debug instability
Revert "debug instability"

This reverts commit c77b7e04cf927a0bec78b4091f08ae9983cdf9c7.
tridiag update
sync from public
Update queue and even share descriptor methods
Adding seg reduce
updates
update
- Fix sorting bug with long keys on 64-bit linux (bad BFE)
- Fix caching allocator unload messages
- Device methods now report the same temp memory requirements regardless
of whether launched from host or CDP
- Radix sort test method now runs in 32-bit mode without running out of
memory
update
Update
working radix sort
Adding iterator tests (incomplete)
update iterator tests
update to iterator testing
Working iterators
update iterator code