Dear R developers:
...
7: lapply(seq_len(cores), inner.do)
8: FUN(1:3[[3]], ...)
9: sendMaster(try(lapply(X = S, FUN = FUN, ...), silent = TRUE))
Selection: .....................Error in sendMaster(try(lapply(X = S, FUN =
FUN, ...), silent = TRUE)) :
long vectors not supported yet: memory.c:3100
admittedly, my outcome will be a very big list, with 30,000 elements, each
containing data frames with 14 variables and around 200 to 5000
observations (say, 64KB on average). thus, I estimate that the resulting
list is 20GB. the specific code that triggers this is
exposures.list <- mclapply(1:length(crsp.list.by.permno),
FUN=function(i, NMO=NMO) {
calcbeta.for.one.stock(crsp.list.by.permno[[i]], NMO=NMO)
},
NMO=NMO, mc.cores=3 )
the release docs to 3.0.0 suggest this error should occur primarily in
unusual situations. so, it's not really a bug. but I thought I would
point this out. maybe this is a forgotten updatedlet.
regards,
/iaw
----
Ivo Welch ([email protected])
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