There's finally a beta out that does multiple GPU, multiple-hash cracking for the Cryptohaze tables.
Right now, it's Linux-only, MD5-only (len 6-10), and has a way of segfaulting... sometimes. It's compiled with debug symbols, so if you can reliably reproduce a segfault, PLEASE, let me know with gdb output!
It takes large hashlists (any size, though beyond a few hundred is of questionable value), uses all avaiable GPUs to generate the candidate hashes, merges any duplicates, searches the table (using the index if possible), again merges the chains to eliminate duplicates, and uses all GPUs to regenerate chains.
Please, try it out and let me know how it works for you!
Windows & Mac versions coming soon.