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szilard/h2o_sum_1bn.R

Created November 4, 2015 19:00
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H2O sum 1 bn numbers
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h2o_sum_1bn.R
install.packages("h2o", type="source", repos=(c("http://h2o-release.s3.amazonaws.com/h2o/rel-slater/9/R")))
library(h2o)
h2oServer <- h2o.init(nthreads = -1)
system.time({
d <- h2o.createFrame(h2oServer, rows = 1e9, cols = 1, missing_fraction = 0,
categorical_fraction = 0, binary_fraction = 0, integer_fraction = 0)
})
system.time({ s <- sum(d$C1) })
system.time({ for(i in 1:10) s <- sum(d$C1) })
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