2019-05-01 20:40:04 +00:00
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if ( !is.loaded("mpi_initialize") ){
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library(Rmpi)
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}
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2019-05-01 20:20:03 +00:00
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2019-05-01 20:40:04 +00:00
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number_of_plots = 5
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nodes = mpi.universe.size()
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mpi.spawn.Rslaves(nslaves=nodes)
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2019-05-01 20:20:03 +00:00
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2019-05-01 20:40:04 +00:00
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generate_plot <- function(filename){
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2019-05-01 21:05:34 +00:00
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print(mpi.comm.rank())
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2019-05-01 20:40:04 +00:00
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samples = rep(NA, 100000)
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for ( i in 1:100000 ){ samples[i] = mean(rexp(40, 0.2)) }
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jpeg(paste('plots/', filename, '.jpg', sep=""))
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hist(samples, main="", prob=T)
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lines(density(samples), col="darkblue", lwd=3)
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dev.off()
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}
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2019-05-01 20:20:03 +00:00
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2019-05-01 20:40:04 +00:00
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samples = 1:number_of_plots
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2019-05-01 20:20:03 +00:00
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2019-05-01 21:05:34 +00:00
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mpi.applyLB(samples, generate_plot)
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2019-05-01 20:40:04 +00:00
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mpi.close.Rslaves()
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mpi.quit()
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