Optimization of 2opt based Algorithm for multiple core systems

The Algorithm for solving TSP using 2opt heuristics.

The code optimized for IBM POWER8 and Intel Xeon Phi: Knights Landing systems

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Features:

1. Compatible with and multi-core and many-core architectures.
2. Fully vectorized for both the systems with AVX2 and AVX512 technology.
3. Uses OpenMP for multi-threading on a single node.
4. Compatible with multi-nodes using MPI based implementation.
5. Almost linear scaling across a cluster.
6. Lower memory footprint compared to other algorithms.