Liggghts compilation failed because "virtual memory exhausted"

Hello everybody,

I am trying to install CFD-DEM on my Ubuntu 12.04 machine (via VirtualBox).

So far, I seemingly installed with success OpenFoam 2.1.1 and git-cloned LIGGGHTS 2.1.2 as well as CFDEMcoupling 2.1.1.

My problem is that the compilation of LIGGGHTS through command
"cfdemCompLIG" failed with the error message "virtual memory exhausted: Cannot allocate memory". The original OS of my computer is Windows; I installed VirtualBox and Ubuntu 12.04 on it, without trouble.

I increased the RAM allocated to the VirtualBox machine to 1.5 GB. Each time I increase this value, the compilation process goes a little but further but I have now reached the maximum RAM I can have.

Is that normal ? What is the minimum RAM requirement to compile LIGGGHTS ?

If this is not normal, please find attached the log file.

If it helps, I can add that I followed the instructions and modified the ~/.bashrc file as below:

#================================================#
#- source cfdem env vars
export CFDEM_VERSION=PUBLIC
export
CFDEM_PROJECT_DIR=$HOME/CFDEM/CFDEMcoupling-$CFDEM_VERSION-$WM_PROJECT_VERSION
export CFDEM_SRC_DIR=$CFDEM_PROJECT_DIR/src/lagrangian/cfdemParticle
export CFDEM_SOLVER_DIR=$CFDEM_PROJECT_DIR/applications/solvers
export CFDEM_DOC_DIR=$CFDEM_PROJECT_DIR/doc
export CFDEM_UT_DIR=$CFDEM_PROJECT_DIR/applications/utilities
export CFDEM_TUT_DIR=$CFDEM_PROJECT_DIR/tutorials
export
CFDEM_PROJECT_USER_DIR=$HOME/CFDEM/$LOGNAME-$CFDEM_VERSION-$WM_PROJECT_VERSION
export CFDEM_bashrc=$CFDEM_SRC_DIR/etc/bashrc
export CFDEM_LIGGGHTS_SRC_DIR=$HOME/LIGGGHTS/LIGGGHTS-PUBLIC/src
export CFDEM_LIGGGHTS_MAKEFILE_NAME=fedora_fpic
export CFDEM_LPP_DIR=$HOME/mylpp/src
export CFDEM_PIZZA_DIR=$HOME/mylpp/src
. $CFDEM_bashrc
#================================================#

Compared to the
system/files/githubAccess_public_0.pdf
, the only change I brought concerns the LPP and PIZZA paths.

I did not change the content of
$HOME/CFDEM/../../../cfdemParticle/etc/bashrc file.

When I run the command cfdemSysTest , I can read that 7
out of 7 paths are set correctly.

Can anybody give me a hint ?

Best regards, Olivier