Added a define in rcm.cpp so that assert(expr) resolves to nothing in certain
cases.
TODO:
1. fix mic version to make sure that solution is equal to serial solution.
2. make sure host version produces the correct results.
Exact solution not reproduced by spmv in mic case, nonvectorized.  method_8a_multi
produces correct exact solution. TO WORK OUT. It has to do with how the matrices
are stored. Must fix and generalize some routines. First, create some CMakefiles.