A multifrontal code is introduced for the efficient solution of the linear system of equations arising from the analysis of structures.The factorization phase is reduced into a series of interleaved element as-sembly and dense matrix operations for which the BLAS3 kernels are used.A similar approach is general-ized for the forward and back substitution phases for the efficient solution of structures having multiple load conditions.The program performs all assembly and solution steps in parallel.Examples are presented which demonstrate the code's performance on single and dual core processor computers.