Degrees of freedom selection
I tried to run Nemoh and NemohQTF with only selected DOF in order to take advantage of the symmetry of the geometry and reduce the computational time needed when running waves in 180° or 0°. In the Nemoh.cal file I indicated 3 Number of degrees of freedom (line 11) and 3 Number of resulting generalized forces (line 18) and then deleted the lines belonging to Sway, Roll and Yaw motions. It worked well when running Nemoh, obtaining 3x3 matrices for the hydrodynamic coefficients and excitation forces for the selected motions only. However, when running NemohQTF (full QTF, option 3) I get an error and I does not calculate the QTFs. Specifically, the pre-processing and solver run properly, but they generate empty files of the QTF results (header only), and fail the postprocessing giving the following message "At line 138 of file /builds/lheea/Nemoh/QTF/PostProcessor/MQpostproc.f90; Fortran runtime error: End of file"
Is there a way to fix this problem? And following the same aim of reducing computational cost, do you have any guide/tutorial about how to use the Parallel Computing Toolbox in Matlab in order to optimize the computation? or is there another way to use parallel computing?