pthreads-timing

A short program demonstrating the benefits of pthreads on a parallelizable algorithm, a (step-wise) array summation. Each thread is given a block of memory to sum.

• -b # set the number blocks in which to divide the input array (one block per pthread)
• -m # set init mode; 0 for arr[i] = i, 1 for rng
• -p # the step size for the array summation (default 1, with a single pass over each block)
• -r # the seed (the random number generator is unseeded if this value is not provided)