library(umx)
manifests = c("mpg", "disp", "gear")
m1 = mxModel("ind", type = "RAM",
manifestVars = manifests,
mxPath(from = manifests, arrows = 2),
mxPath(from = "one", to = manifests),
mxData(mtcars[, manifests], type = "raw")
)
umx_set_cores() # print current value
oldCores = umx_set_cores(silent = TRUE) # store existing value
umx_set_cores(omxDetectCores()) # set to max
umx_set_cores(-1); umx_set_cores() # set to max
m1 = umx_set_cores(1, m1) # set m1 usage to 1 core
umx_set_cores(model = m1) # show new value for m1
umx_set_cores(oldCores) # reinstate old global value
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