build

default CHOLMOD: no cuda #1241

Job	Run time
mingw (MINGW64)	22m 12s
mingw (MINGW32)	26m 2s
mingw (UCRT64)	20m 12s
mingw (CLANG64)	21m 49s
ubuntu (gcc with CUDA with OpenMP, both)	8m 20s
ubuntu (gcc without CUDA with OpenMP, both)	6m 14s
ubuntu (clang with CUDA with OpenMP, both)	11m 18s
ubuntu (clang without CUDA with OpenMP, both)	7m 33s
ubuntu (gcc without CUDA without OpenMP, )	5m 56s
ubuntu (gcc with CUDA with OpenMP, static)	9m 15s
	2h 18m 51s

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