* Returns the size of physical memory (RAM) in bytes. */

Return an iterator pointing to the beginning of block i

Combine two hash values into a single hash value. Formula borrowed from Boost

shift a left by n digits (i.e multiply a by d^n).

allocate and initialize an internal node

gamma currently not used

Grab a free ID from the available list, or if there are none available, allocate a new one.

must be vertices not already in set

Minimum size of the padding for p_malloc. For large allocations, uses a larger padding to guarantee at least 64-byte alignment. Needs to be at least s

parallel version of best cut

sequential version of best cut

parallel best cut

Check answer is correct (i.e. covers all elements that could be)

checks 500 randomly selected points for accuracy

Clasify a set of rows based on tree