A few notes about installing icemc on OSC Dependencies ROOT - download from CERN and install according to instructions FFTW - do "module load gnu/4.8.5" (or put it in your .bash_profile) The environment variable FFTWDIR must contain the directory where FFTW resides in my case this was /usr/local/fftw3/3.3.4-gnu set this up in your .bash_profile (not .bashrc) I copied my working instance of icemc from my laptop to a folder in my osc space Copy the whole icemc directory (maybe its icemc/trunk, depending on how you installed), EXCEPT for the "output" subdir because it's big and unnecessary in your icemc directory on OSC, do "mkdir output" In icemc/Makefile find a statement like this: LIBS += -lMathMore $(FFTLIBS) -lAnitaEvent and modify it to include the directory where the FFTW library is: LIBS += -L$(FFTWDIR)/lib -lMathMore $(FFTLIBS) -lAnitaEvent note: FFTLIBS contains the list of libraries (e.g., -lfftw3), NOT the library search paths Compile by doing "make" Remember you should set up a batch job on OSC using PBS.