Coupling PLASIM and PUMA requires some handwork currently. This is a quick introduction: 1) Start most.x and select: PUMA, CPU's=1, Instances=2, Orography, Annual Cycle, NSYNC=1, SYNCSTR=0.1 2) Click on "Save and Exit" 3) Copy the contents of puma/run to a new directory, say $WORK/run 4) PUMA will get the instance number #1, so files ending with _01 are necessary for PUMA 5) Start most.x and select: PLASIM, CPU's=1, Instances=2, NSYNC=1, SYNCSTR=0.1 6) Click on "Save & Exit" 7) Change to plasim/run 8) Copy the plasim executable to $WORK/run 9) Copy all *.sra files to $WORK/run 10) Copy all *_00 files to $WORK/run 11) Change to $WORK/run 12) Edit puma_namelist_00 (for PLASIM) 13) Insert NEQSIG=1 14) Insert N_DAYS_PER_YEAR=360 15) If you want to run with (two!) GUI's then copy from puma/dat/GUI.cfg to $WORK/run/GUI_01.cfg from plasim/dat/GUI.cfg to $WORK/run/GUI_00.cfg 16) Write a new run script for organizing output from both models, plasim files have the appendix "_00" and puma files "_01". 17) Or try it out b directly calling: openmpiexec -np 1 most_plasim_t21_l10_p1.x : -np 1 most_puma.x 32 10 18) Any help, e.g. a new runscript for coupled runs is appreciated.