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object '.lec.Random.seed.table' not found

2 messages · Chien Lin Terry Huang, Hana Sevcikova

Original
Chien Lin Terry Huang
# 
Hi all,

I attempted to install "RSPRNG" package in OSX Lion by just selecting it 
from the Package Installer menu, and later realised it was a stupid 
idea! However, after the installation failed, the error "object 
'.lec.Random.seed.table' not found" appeared when I run the following code:

test = function( iter , cores )
{
     cl = makeCluster( cores , type = "SOCK" );
     clusterSetupRNG( cl );
     registerDoSNOW( cl );


     output = foreach( i = 1:iter , .combine = "rbind") %dopar%
     {
         runif( 1 , 0 , 1 );
     }

     stopCluster( cl );

output;
}

test( 100 , 2 )

The reason that I wanted to install "RSPRNG", is because I seemed to get 
the same "random" number stream every time when I run the code above.

My question is, 1) how can I fix the error. 2) How can I avoid getting 
the same random number stream for each nodes?

Many thanks
Terry
Hana Sevcikova
# 
Terry,

The function clusterSetupRNG is using the RNGstream from rlecuyer 
package by default. There was a bug in the latest version of the 
rlecuyer package (0.3-2). A corrected version (0.3-3) is now sitting in 
the queue to be published on CRAN. So it should become available within 
the next few days.

Hana
On 2/1/12 8:21 PM, Chien Lin Terry Huang wrote: