Hi all,

I am using foreach and doMC packages to do some parallel GO analyses with GOstats.

If I use 3 or less processors at the same time (i.e. the foreach loop goes up to n=3) all works fine but when I want to use n>3 I get this error:

"RSQLite driver: (RS_SQLite_fetch: failed: database disk image is malformed)"
I assume that   the error comes from the multiple connections to the annotation packages used by GOstats.  Is there a way to overcome this problem?
Thanks

Adi L. Tarca

> sessionInfo()
R version 2.12.0 (2010-10-15)
Platform: x86_64-unknown-linux-gnu (64-bit)

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

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

other attached packages:
[1] doMC_1.2.1           multicore_0.1-3      foreach_1.3.0
[4] codetools_0.2-2      iterators_1.0.3      GOstats_2.16.0
[7] RSQLite_0.9-3        DBI_0.2-5            graph_1.28.0
[10] Category_2.16.0      AnnotationDbi_1.12.0 Biobase_2.10.0
[13] limma_3.6.6

loaded via a namespace (and not attached):
[1] annotate_1.28.0   genefilter_1.32.0 GO.db_2.4.5       GSEABase_1.12.1
[5] RBGL_1.26.0       splines_2.12.0    survival_2.35-8   tools_2.12.0
[9] XML_3.2-0         xtable_1.5-6




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