R handing after Java finished computing

[WillRust303]

Hi there,

I am trying to calculate the CPU time for a broad range of netlogo sims, however at the moment I am only running one simulation and timing that. I have noticed that simulations (even for one, small simulation) takes ~7x longer on nrlx than it does in NetLogo (NetLogo ~1 min, nlrx ~7 mins). Looking at the Processes in Windows Task Manager, it seems that when I run the sim from nlrx, java starts computing and then after about a minute, java finishes and closes. R then hangs for the remaining time before completeing its process.

I see other issues posted here on similar issues but the response is typically due to running too many sims / parameters. Whereas I am running only one simulation. I have pasted my code below:

R Code

Sys.setenv(JAVA_HOME='C:/Program Files/Java/jre-1.8')

netlogopath <- file.path("C:/Program Files/NetLogo 6.0.3")
modelpath <- "AJ2015_upscale_test.nlogo")
outpath <- file.path("C:/out")

#~~~~~~~~~~~~~~OPEN MODEL AND TEST~~~~~~~~~~~~~~~~~~#
nl <- nl(nlversion = "6.0.3",
nlpath = netlogopath,
modelpath = modelpath,
jvmmem = 2048*8)

nl@experiment <- experiment(expname = "worms",
outpath = outpath,
repetition = 1,
tickmetrics = "true",
idsetup = "setup",
idgo = "go",
runtime = 7300,
evalticks = seq(1,7300),
constants = list("Application_Rate" = 0,
"Application_Year" = 0,
"Application_Day" = 0,
"Initial_Number_Adults" = 300,
"Initial_Number_Juveniles" = 300,
"Initial_Number_Cocoons" = 300),
metrics.turtles = list("turtles" = c("who", "xcor", "ycor", "mass", "age", "breed")))

eval_variables_constants(nl)

nl@simdesign <- simdesign_simple(nl = nl, nseeds = 1)
start <- Sys.time()
results <- run_nl_all(nl = nl)
end <- Sys.time()

difftime(end, start, units = "mins")

Any help you could give would be great! Thanks again.