Heat equation smoothing of IC (#805) #1908

Job	Run time
Detect File Changes	6s
Self Hosted (cpu, gt)	52m 17s
Github (ubuntu, mpi, debug, true)	1h 10m 2s
Github (ubuntu, mpi, debug, false)	1h 43m 16s
Self Hosted (gpu, gt)	1h 11m 54s
Github (ubuntu, mpi, no-debug, true)	1h 10m 50s
Self Hosted (gpu, frontier)	38m 17s
Github (ubuntu, mpi, no-debug, false)	1h 49m 40s
Github (macos, mpi, debug, false)	56m 8s
Github (macos, mpi, no-debug, false)	55m 50s
Github (ubuntu, no-mpi, single, no-debug, false)	21m 48s
	10h 50m 8s

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