[R-sig-hpc] multicore mclapply hangs

[Dirk Eddelbuettel]

On 10 August 2009 at 13:55, Rune Schjellerup Philosof wrote:
| When I execute mclapply it creates the needed processes, but these
| processes never begin computing anything, they just wait indefinitely.

Would you have a reproducible example?  

      library(multicore)      
      example(mclapply)

works here as expected.

| I recently upgraded to version 2.9.1, which might have caused the problem.

That would surprise me but one never knows.

Dirk

| I use Ubuntu 8.10.
| 
| > sessionInfo()
| R version 2.9.1 (2009-06-26)
| x86_64-pc-linux-gnu
| 
| locale:
| LC_CTYPE=da_DK.UTF-8;LC_NUMERIC=C;LC_TIME=da_DK.UTF-8;LC_COLLATE=da_DK.UTF-8;LC_MONETARY=C;LC_MESSAGES=da_DK.UTF-8;LC_PAPER=da_DK.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=da_DK.UTF-8;LC_IDENTIFICATION=C
| 
| attached base packages:
| [1] stats     graphics  grDevices utils     datasets  methods   base
| 
| other attached packages:
| [1] multicore_0.1-3
| 
| loaded via a namespace (and not attached):
| [1] tcltk_2.9.1 tools_2.9.1
| 
| 
| 
| 
| -- 
| Med venlig hilsen
| Rune Schjellerup Philosof
| Ph.d.-studerende, Statistik, IST, SDU
| 
| Telefon:  6550 3607
| E-mail:   rphilosof at health.sdu.dk
| Adresse:  J.B. Winsløwsvej 9, 5000 Odense C
| 
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