Merge pull request #35 from zhuangqh/support-sd

cpu/Makefile

cpu/cpu-client-cublas.c

cpu/cpu-client-cublaslt.c

cpu/cpu-client-cudnn.c

cpu/cpu-client.c

cpu/cpu-libwrap.c

cpu/cpu-libwrap.h

cpu/cpu-server-cublas.c

cpu/cpu-server-cublaslt.c

cpu/cpu-server-cublaslt.h

cpu/cpu-server-cudnn.c

cpu/cpu-server-runtime.c

cpu/cpu_rpc_prot.x

cpu/resource-mg.h

gpu/src/main.c

tests/gpu/checkpoint.sh