[Bioc-devel] ‘SOCKcluster’ cluster error with bplapply() under merida2

Carmen M. Livi carmen.livi at ifom.eu
Wed Apr 18 15:22:36 CEST 2018

Hi all,

I was using parallel::mclapply() but have been encouraged to substitute 
it with BiocParallel::bplapply().

     BPPARAM = BiocParallel::MulticoreParam(workers =x ),
     FUN  =...)....

I never had problems with the code. Now the package got accepted and 
moved to the bioconductor-repository and suddenly I am getting errors in 
the vignette build when asking for 5 workers:

"Error in serialize(data, node$con, xdr = FALSE) : error writing to 

After reducing the number of requested workers to 3 my package passed 
under linux (malbec2 and malbec1) but still fails under OS X (merida2):

"Error : failed to stop ‘SOCKcluster’ cluster: error writing to connection "

Does anyone have an idea what is going on? Am I not supposed to ask for 
more then 1 worker in the vignette?

What if I just switch back to parallel::mclapply?

Thank you,

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