mgrmakevar: Create an 'Rdsm' shared variable.

In Rdsm: Threads Environment for R

Description

Creates an Rdsm shared variable.

Usage

mgrmakevar(cls,varname,nr,nc,vartype="double",fs=FALSE,mgrcpy=TRUE,savedesc=TRUE)

Arguments

cls	The parallel cluster.
varname	Name of the shared variable, quoted. (The variable must be a matrix, though it could be 1x1 etc.)
nr	Number of rows in the variable.
nc	Number of columns in the variable.
vartype	Atomic R type of the variable, quoted, "double" by default.
fs	Place in backing store? FALSE by default.
mgrcpy	Place a copy of the shared variable on the manager node? TRUE by default.
savedesc	Save the bigmemory descriptor for this variable on disk.

Details

Run this from the manager (the R process from which you create the cluster). The shared variable will be created, readable/writable from all threads. The variable will be of class big.matrix; see the library bigmemory for details.

Author(s)

Norm Matloff

Rdsm documentation built on May 1, 2019, 10:52 p.m.