[Bioc-devel] BiocParallel::bpvec() and DNAStringSet objects, problem

[Robert Castelo]

hi,

I have encountered a problem when using the bpvec() function from the 
BiocParallel package with DNAStringSet objects and the "SerialParam" 
backend:

library(Biostrings)
library(BiocParallel)


## all correct when using the multicore backend

bpvec(X=DNAStringSet(c("AC", "GT")), FUN=as.character, BPPARAM=bpparam())
[1] "AC" "GT"

bpvec(X=DNAStringSet(c("AC", "GT")), FUN=as.character, 
BPPARAM=MulticoreParam())
[1] "AC" "GT"


## problem when using the SerialParam backend

bpvec(X=DNAStringSet(c("AC", "GT")), FUN=as.character, 
BPPARAM=bpparam("SerialParam"))
[1] "1" "2"


the problem is that elements of the DNAStringSet object get somehow 
coerced to integers when using the "SerialParam" backend.


this occurs in both current release and devel, please find the 
corresponding sessionInfo()'s below.


thanks!

robert.

## release
sessionInfo()
R version 3.2.0 (2015-04-16)
Platform: x86_64-unknown-linux-gnu (64-bit)
Running under: Fedora release 12 (Constantine)

locale:
  [1] LC_CTYPE=en_US.UTF8       LC_NUMERIC=C
  [3] LC_TIME=en_US.UTF8        LC_COLLATE=en_US.UTF8
  [5] LC_MONETARY=en_US.UTF8    LC_MESSAGES=en_US.UTF8
  [7] LC_PAPER=en_US.UTF8       LC_NAME=C
  [9] LC_ADDRESS=C              LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF8 LC_IDENTIFICATION=C

attached base packages:
[1] stats4    parallel  stats     graphics  grDevices utils     datasets
[8] methods   base

other attached packages:
[1] BiocParallel_1.2.20 Biostrings_2.36.4   XVector_0.8.0
[4] IRanges_2.2.7       S4Vectors_0.6.5     BiocGenerics_0.14.0
[7] vimcom_1.2-3        setwidth_1.0-4      colorout_1.1-0

loaded via a namespace (and not attached):
[1] zlibbioc_1.14.0      futile.logger_1.4.1  tools_3.2.0
[4] lambda.r_1.1.7       futile.options_1.0.0

## devel
sessionInfo()
R Under development (unstable) (2015-04-28 r68268)
Platform: x86_64-unknown-linux-gnu (64-bit)
Running under: Fedora release 12 (Constantine)

locale:
  [1] LC_CTYPE=en_US.UTF8       LC_NUMERIC=C 
LC_TIME=en_US.UTF8
  [4] LC_COLLATE=en_US.UTF8     LC_MONETARY=en_US.UTF8 
LC_MESSAGES=en_US.UTF8
  [7] LC_PAPER=en_US.UTF8       LC_NAME=C                 LC_ADDRESS=C 

[10] LC_TELEPHONE=C            LC_MEASUREMENT=en_US.UTF8 
LC_IDENTIFICATION=C

attached base packages:
[1] stats4    parallel  stats     graphics  grDevices utils     datasets 
  methods   base

other attached packages:
[1] BiocParallel_1.3.51 Biostrings_2.37.8   XVector_0.9.3 
IRanges_2.3.18
[5] S4Vectors_0.7.14    BiocGenerics_0.15.6 vimcom_1.0-0 
setwidth_1.0-4
[9] colorout_1.0-3

loaded via a namespace (and not attached):
[1] zlibbioc_1.15.0      futile.logger_1.4.1  tools_3.3.0 
lambda.r_1.1.7
[5] futile.options_1.0.0