NetCDF (Network Common Data Format) is a set of software libraries supporting machine-independent data file formats that are useful for accessing and sharing array-oriented scientific data.

Versions and Availability

▶ Display Softenv Keys for netcdf_fortran on all clusters
Machine Version Softenv Key
None Available N/A N/A
▶ Softenv FAQ?

The information here is applicable to LSU HPC and LONI systems.


SoftEnv is a utility that is supposed to help users manage complex user environments with potentially conflicting application versions and libraries.

System Default Path

When a user logs in, the system /etc/profile or /etc/csh.cshrc (depending on login shell, and mirrored from csm:/cfmroot/etc/profile) calls /usr/local/packages/softenv-1.6.2/bin/ to set up the default path via the SoftEnv database.

SoftEnv looks for a user's ~/.soft file and updates the variables and paths accordingly.

Viewing Available Packages

Using the softenv command, a user may view the list of available packages. Currently, it can not be ensured that the packages shown are actually available or working on the particular machine. Every attempt is made to present an identical environment on all of the LONI clusters, but sometimes this is not the case.


$ softenv
These are the macros available:
*   @default
These are the keywords explicitly available:
+amber-8                       Applications: 'Amber', version: 8 Amber is a
+apache-ant-1.6.5              Ant, Java based XML make system version: 1.6.
+charm-5.9                     Applications: 'Charm++', version: 5.9 Charm++
+default                       this is the default environment...nukes /etc/
+essl-4.2                      Libraries: 'ESSL', version: 4.2 ESSL is a sta
+gaussian-03                   Applications: 'Gaussian', version: 03 Gaussia
Listing of Available Packages

See Packages Available via SoftEnv on LSU HPC and LONI.

For a more accurate, up to date list, use the softenv command.


Currently there are some caveats to using this tool.

  1. packages might be out of sync between what is listed and what is actually available
  2. resoft and soft utilities are not; to update the environment for now, log out and login after modifying the ~/.soft file.

softenv is available on all LSU HPC and LONI clusters to all users in both interactive login sessions (i.e., just logging into the machine) and the batch environment created by the PBS job scheduler on Linux clusters and by loadleveler on AIX clusters..

Packages Availability

This information can be viewed using the softenv command:

% softenv
Managing Environment with SoftEnv

The file ~/.soft in the user's home directory is where the different packages are managed. Add the +keyword into your .soft file. For instance, ff one wants to add the Amber Molecular Dynamics package into their environment, the end of the .soft file should look like this:



To update the environment after modifying this file, one simply uses the resoft command:

% resoft
▶ Display Module Names for netcdf_fortran on all clusters.
Machine Version Module
qb 4.2 netcdf_fortran/4.2/INTEL-140-MVAPICH2-2
smic 4.2 netcdf_fortran/4.2/INTEL-140-MVAPICH2-2
▶ **FIX-ME** FAQ?


For clusters using module, use the module disp command to determine the location of the netcdf_fortran path and then add it to your build options:

$ module disp netcdf_fortran/4.2/INTEL-140-MVAPICH2-2.0

module-whatis    Description: NetCDF (network Common Data Form) is a set of software libraries 
 and machine-independent data formats that support the creation, access, and sharing of array-oriented 
  scientific data. - Homepage: 
  conflict   netcdf_fortran 
. . .  
  setenv         LHPC_ROOTNETCDF_FORTRAN /usr/local/packages/netcdf_fortran/4.2/INTEL-140-MVAPICH2-2.0 
  setenv         LHPC_VERSIONNETCDF_FORTRAN 4.2 
  setenv         LHPC_DEVELNETCDF_FORTRAN /usr/local/packages/netcdf_fortran/4.2/INTEL-140-MVAPICH2-2.0/easybuild/netcdf_fortran-4.2-INTEL-140-MVAPICH2-2.0-easybuild-devel 
. . .
libnetcdff.a  pkgconfig

The libraries are used at link time by the compiler, so the following options could be used:

   -L${LHPC_ROOTNETCDF}/lib -lnetcdff

Please refer to the documentation in Resources for a discussion of the API and how to choose the correct library.


Last modified: June 25 2015 10:59:13.