Adding oversubscribe to all the examples

example/Numerics/Stoke_flow/0_2D_incompressible/Makefile

example/SparseGrid/1_gray_scott_3d_sparse/Makefile

example/SparseGrid/2_gray_scott_3d_sparse_gpu_opt/Makefile

example/SparseGrid/3_gray_scott_3d_sparse_cs/Makefile

example/SparseGrid/3_gray_scott_3d_sparse_gpu_cs/Makefile

...ple/SparseGrid/3_gray_scott_3d_sparse_gpu_cs_opt/Makefile

example/SparseGrid/5_gray_scott_3d_surface_cs_opt/Makefile

...rseGrid/6_gray_scott_3d_sparse_gpu_opt_weak_scal/Makefile

example/SparseGrid/8_filling_benchmark_gpu/Makefile

example/VCluster/0_simple/Makefile

example/Vector/7_SPH_dlb/Makefile

example/Vector/7_SPH_dlb_gpu_opt/Makefile