Added host Gauss-Seidel relaxation. Verified working. 23s for 1000 iterations.
Added host Jacobi relaxation. Need to add padding to internal variable.
Added some Jacobi stuff for the GPU. Unsure if it works.
Replaced deprecated cudaThreadSynchronize() with cudaDeviceSynchronize()
Printing MSE instead of SSD error
Integrated cpu Jacobi solver into main program
Integrated Gauss-Seidel CPU solver to main.
Merge branch 'cpusolvers'