Hi,

when I use `bplapply` the process basically stalls. I have to cancel it, when called from RStudio I also have to kill the process.

It happens with:

bplapply(1:10, paste)

I've seen a similar issue with someone on a Windows (https://support.bioconductor.org/p/70435/).

I am working on a openSUSE Leap 42.1 (x86_64)

R version 3.3.1 (2016-06-21)
Platform: x86_64-suse-linux-gnu (64-bit)
Running under: openSUSE Leap 42.1 (x86_64)

locale:
 [1] LC_CTYPE=de_DE.UTF-8       LC_NUMERIC=C              
 [3] LC_TIME=de_DE.UTF-8        LC_COLLATE=de_DE.UTF-8    
 [5] LC_MONETARY=de_DE.UTF-8    LC_MESSAGES=de_DE.UTF-8   
 [7] LC_PAPER=de_DE.UTF-8       LC_NAME=C                 
 [9] LC_ADDRESS=C               LC_TELEPHONE=C            
[11] LC_MEASUREMENT=de_DE.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] BiocParallel_1.6.6

loaded via a namespace (and not attached):
[1] parallel_3.3.1 tools_3.3.1

It could be ports are blocked, and that, in BiocParallel 1.8.1 (the current version of Bioconductor for R 3.3.1) you could options(port=...) to a port that you know to be open.

Hi Martin,

I also observe this issue on my Mac (Yosemite) on sporadic cases.

Sometimes it works without any issue, sometimes it just starts creating zombie processes, sometimes it doesn't do anything.
I tried setting ports, setting the Multicoreparam manually, nothing helps.

I can remember that we encountered a similar issue during the CSAMA2016 course in Brixen back in July and you had a solution for that (that also worked on Windows machines). Unfortunately I can't remember what it was, all I know is that it was a trivial thing :(

Best

Jan