snowfall Questions
1
I’ve successfully used snowfall to setup a cluster on a single server with 16 processors.
require(snowfall)
if (sfIsRunning() == TRUE) sfStop()
number.of.cpus <- 15
sfInit(parallel = TRUE, cpu...
Awad asked 30/3, 2016 at 1:0
2
Solved
I'm trying to build an animated barplot with ggplot2 and magick that's growing on a "day per day" base. Unfortunately, I've got tenthousands of entries in my dataset (dates for each day for several...
Redtop asked 5/6, 2018 at 10:12
2
I'm developing an R package which needs to use parallelisation as made available by the snowfall package. snowfall doesn't seem to import the same was as other packages like ggplot2, data.table, et...
2
Solved
My project for today was to write a fast correlation routine in R using the basic skillset I have. I have to find the correlation between almost 400 variables each having almost a million observati...
Panto asked 23/9, 2013 at 16:59
1
Solved
I've got two servers on a LAN with fresh installs of Centos 6.4 minimal and R 3.0.1. Both computers have doParallel, snow, and snowfall packages installed.
The servers can ssh to each other fine.
...
Waiver asked 29/7, 2013 at 11:50
1
Solved
I've been trying to run Rmpi and snowfall on my university's clusters but for some reason no matter how many compute nodes I get allocated, my snowfall initialization keeps running on only one node...
Prehensile asked 27/7, 2013 at 16:2
3
Solved
I have a dataset with 500k appointments lasting between 5 and 60 minutes.
tdata <- structure(list(Start = structure(c(1325493000, 1325493600, 1325494200, 1325494800, 1325494800, 1325495400, 13...
Schlicher asked 18/6, 2013 at 12:15
1
I am having trouble initialising a connection to an AWS EC2 instance from R as I seem to keep getting the error: Permission denied (publickey) I am currently using a Mac OS X 10.6.8 as my OS
The c...
Impregnable asked 22/11, 2012 at 22:42
2
Solved
I'm trying to dig a bit deeper into parallelziation of R routines.
What are my options with respect to the communication of a bunch of "worker" processes regarding
the communication between the...
Carping asked 20/7, 2012 at 16:3
1
Solved
I am conducting a simulation study using snowfall package on Windows 7.
I like to print out a message for every 10 runs to main R console to monitor the progress, but it fails to do so. ie. nothi...
2
Solved
In relation to my earlier similar SO question , I tried using snow/snowfall on AWS for parallel computing.
What I did was:
In the sfInit() function, I provided the public DNS to socketHosts para...
Vergara asked 7/9, 2011 at 12:20
3
Solved
I have a data.frame of cells, values and coordinates. It resides in the global environment.
> head(cont.values)
cell value x y
1 11117 NA -34 322
2 11118 NA -30 322
3 11119 NA -26 322
4 11120...
Honk asked 6/6, 2011 at 11:58
1
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