R version 2.5.1 (2007-06-27)
I' running some simple R jobs via the Sun Grid Engine on our Linux cluster
in preparation for some bigger ones.
I checked R's capabilities on the cluster nodes (after failing to create a
png file) and am getting the following warning message:
[Run on a cluster node using qrsh:]
> capabilities()
jpeg png tcltk X11 http/ftp sockets libxml fifo
FALSE FALSE FALSE FALSE TRUE TRUE TRUE TRUE
cledit iconv NLS profmem
TRUE TRUE TRUE FALSE
Warning message:
unable to load shared library
'/n/site/inst/Linux-i686/bioinfo/R/2.5.1/lib/R/modules//R_X11.so':
libSM.so.6: cannot open shared object file: No such file or directory in:
capabilities()
Is the double slash (//) in the path above a bug in how we've configured R
here (the /n/site/inst/ directory is shared but is platform specific), or a
bug in how the capabilities command works? The file does exist if the
double slash in the path had not caused the warning above.
How can one programmatically get the info from ?Devices, which appears to be
dynamic based on one's system? Is it safe to assume that pdf's or
postscript files are always available in R since they're not listed in
capabilities and seem to be shown everywhere under ?Devices ?
Part of the ?Devices output on a cluster node says this:
The following devices will be available if R was compiled to use
them:
* 'X11' The graphics driver for the X11 Window system
* 'png' PNG bitmap device
* 'jpeg' JPEG bitmap device
We can just recompile to get png or jpeg support? Are X11 libraries used on
cluster nodes while running "headless"? Can I create pngs or jpegs without
X11?
Thanks for any advice about this.
efg
Earl F. Glynn
Scientific Programmer
Stowers Institute for Medical Research
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
