Learning Forum

[jtowns03]

I'm trying to run LS-PrePost 4.12 in batch mode with the -nographics option on Stanford's Sherlock HPC to process d3plot data (~2TB) without downloading it locally. However, despite the -nographics flag, I get errors due to numerous missing graphical libraries (e.g., liblibApipWrapper.so, liblsreader_c.so.0.1.77) that are not available on the HPC. Has anyone successfully run LS-PrePost on an HPC in this mode? Are there alternative methods to extract d3plot data without the GUI or workarounds for these dependencies?

Example of the error:

/home/groups/camarilo/LS-PrePost_4.12/lsprepost: error while loading shared libraries: liblibApipWrapper.so: cannot open shared object file: No such file or directory 

[Raman Babu]

Hello,

Does the linux box have a graphics card?
If No, we need to send display to Xvfb

If it is not installed, you need to install it and can create a X virtual framebuffer.
Please see the below a shell script to create X virtual framebuffer.

#!/bin/sh
# Usage lsprepost_xvfb.sh arguments
# the paramter arguments are sent across to prepost 

LSPP_BIN_DIR=/data/cae/grp048/nbak/cae008/ref14/lzqq41/LSDYNA-ONESTEP/Linux/LSPP/lsprepost3.2_opensuse102/
display_id=$$
Xvfb="/usr/X11R6/bin/Xvfb"
LSPREPOST="${LSPP_BIN_DIR}/lsprepost"
export LD_LIBRARY_PATH=$LSPP_BIN_DIR/lib:$LD_LIBRARY_PATH
if [ "x${Xvfb}" = "x" ] ; then
    echo "Running LS-Prepost using no graphics mode"
    ${LSPREPOST} -nographics $@
else
    echo "Running LSPREPOST using VirtualFrameBuffer (VFB)"
#    ${Xvfb} :${display_id} -nolisten tcp -fbdir -screen 0 1920x1080x64 &
    ${Xvfb} :${display_id} -screen 0 800x600x24&
    pid=$!
    DISPLAY=":${display_id}"; export DISPLAY
    ${LSPREPOST} $@
    kill -9 ${pid} 
    rm -rf /tmp/.X${pid}"-lock"
fi
echo "Done.."

exit

[igandiko]

 

I suggest trying the below batch command instead of using -nographics option.

/path/lsprepost runc=cfile