Table 1.

ACO architecture and hardware configurations explored. LAC - Longest Common Subsequence Problem, MKP - Multidimensional Knapsack Problem, TSP - Travelling Salesman problem. IAC – Independent Ant Colonies, IntAC – Interactive Ant Colonies, PA – Parallel Ants.

	Task parallelism, IAC	Task parallelism, IntAC	Task parallelism, PA	Data parallelism, PA
CPU	Scheduling (Thiruvady, Ernst, & Singh, 2016)	Scheduling (Thiruvady, Ernst, & Singh, 2016)	TSP (Guerrero et al., 2014, Yang et al., 2016) Scheduling (Thiruvady, Ernst, & Singh, 2016) Supply chain [this paper]	TSP (Zhou, He, Hou, & Qiu, 2018) Supply chain [this paper]
GPU	n/a	n/a	Protein folding (Llanes, Vélez, Sánchez, Pérez-Sánchez, & Cecilia, 2016) TSP (Guerrero, Cecilia, Llanes, García, Amos, & Ujaldón, 2014) MKP (Fingler, Cáceres, Mongelli, & Song, 2014) LAC (Markvica, Schauer, & Raidl, 2015)	TSP (Zhou et al., 2018, Cecilia et al., 2018, Skinderowicz, May 2020) Edge detection (Dawson & Stewart, 2014) Supply chain [this paper]
CPU cluster	Scheduling (Huo & Huang, 2016)	TSP (Randall & Lewis, 2002)	TSP (Weidong, Jinqiao, Yazhou, Hongjun, & Jidong, 2015)	n/a
Xeon Phi	n/a	n/a	Supply chain[this paper]	TSP (Tirado et al., 2015, Tirado et al., 2017, Lloyd and Amos, 2017) Supply chain[this paper]