The Truss solver uses a 2D Truss element to oputput the resultant nodal deflections and forces in the elements. It is written in fortran 90 and accepts an input file that contains the information required by the solver. Please refer to the documentation to use the solver.
Usage : Assuming that both the executable and input files are in the same folder (say FEA), you may start the solver as
C:\FEA\Truss_FEA_solver.exe Truss1.sinpwhere Truss_FEA_solver.exe is the executable compiled from source and Truss1.sinp is the input file.
$ ./Truss_FEA_solver Truss1.sinpwhere Truss_FEA_solver is the executable compiled from source and Truss1.sinp is the input file.