Either way,. to download ORCA you need to join the ORCA forum:
https://orcaforum.cec.mpg.de/portal.php
Once you've joined you can go to Downloads and, well, download. I went for https://orcaforum.cec.mpg.de/downloads.php?view=detail&df_id=43
sudo mkdir /opt/orca sudo chown $USER /opt/orca cp ~/Downloads/orca_3_0_3_linux_x86-64.tbz /opt/orca cd /opt/orca tar xvf orca_3_0_3_linux_x86-64.tbz cd orca_3_0_3_linux_x86-64 ln -s orca orca_cc
The symmlink is there because debian already has a binary called orca.
And that's that installed. To add /opt/orca/orca_3_0_3_linux_x86-64 to PATH do
echo 'export PATH=$PATH:/opt/orca/orca_3_0_3_linux_x86-64' >> ~/.bashrc
To test, try one of the jobs on https://www.sharcnet.ca/help/index.php/ORCA#Parallel_ORCA_job and run using
/opt/orca/orca_3_0_3_linux_x86-64/orca_cc test.inp***************** * O R C A * ***************** --- An Ab Initio, DFT and Semiempirical electronic structure package --- ####################################################### # -***- # # Department of molecular theory and spectroscopy # # Directorship: Frank Neese # # Max Planck Institute for Chemical Energy Conversion # # D-45470 Muelheim/Ruhr # # Germany # # # # All rights reserved # # -***- # ####################################################### Program Version 3.0.3 - RELEASE - [..] ************************************************************ * Program running with 2 parallel MPI-processes * * working on a common directory * ************************************************************ ------------------------------------------------------------------------------ [..] ------------------------------------------------------------------------------ ORCA ELECTRIC PROPERTIES CALCULATION ------------------------------------------------------------------------------ Dipole Moment Calculation ... on Quadrupole Moment Calculation ... off Polarizability Calculation ... off GBWName ... test.gbw Electron density file ... test.scfp.tmp ------------- DIPOLE MOMENT ------------- X Y Z Electronic contribution: 0.00000 -0.00000 -0.00000 Nuclear contribution : -0.00000 0.00000 -0.00000 ----------------------------------------- Total Dipole Moment : -0.00000 0.00000 -0.00000 ----------------------------------------- Magnitude (a.u.) : 0.00000 Magnitude (Debye) : 0.00000 Timings for individual modules: Sum of individual times ... 45.891 sec (= 0.765 min) GTO integral calculation ... 5.511 sec (= 0.092 min) 12.0 % SCF iterations ... 26.269 sec (= 0.438 min) 57.2 % SCF Gradient evaluation ... 13.957 sec (= 0.233 min) 30.4 % Geometry relaxation ... 0.154 sec (= 0.003 min) 0.3 % ****ORCA TERMINATED NORMALLY**** TOTAL RUN TIME: 0 days 0 hours 0 minutes 50 seconds 359 msec
