Table 4.

Running time breakdown, in seconds, of the two FastKmer stages on the 32GB dataset with k fixed to 55 and a decreasing number of executors

	64 Workers	32 Workers	16 Workers	8 Workers
	Stage 1
Scheduler Delay time	0	0.1	0.1	0.2
Executor Deserialization time	0	0.4	0.8	2.7
Executor Compute time	293.4	569.7	1152.8	2575.2
Shuffle Read time	0	0	0	0
Shuffle Write time	0.8	1.7	3.3	7.4
Shuffle Read local (MB)	0	0	0	0
Shuffle Read remote (MB)	0	0	0	0
Shuffle Write (MB)	504.7	1009.5	2018.7	4542
	Stage 2
Scheduler Delay time	0	0	0.1	0.1
Executor Deserialization time	0.2	0.44	0.4	1.4
Executor Compute time	1083	1171.2	2060.2	4556.4
Shuffle Read time	0	2.3	0	0
Shuffle Write time	0	0	0	0
Shuffle Read local (MB)	15.6	62.5	250.6	1125.9
Shuffle Read remote (MB)	484.4	937.9	1749.9	3375.3
Shuffle Write (MB)	0	0	0	0

The table reports also the size, in megabytes, of the corresponding read and write shuffles