# Create a loop that is semantically equivalent to the reference loop.

# That is$,$ it computes a$[0]=$ a$[0]+$ a$[1]+$ a$[2]+$ a$[3]+$ a$[4]...+$ a$[$size$]$

# where size is passed in by the main source string.

#

# You should unroll by a factor of "partitions". This is done logically

# by splitting a into N partitions $($where N $==$ partitions$).$ You will compute

# N reductions, one computation for each partition per loop iteration.

#

# You will need a cleanup loop after the main loop to combine

# the values in each partition.

#