I tested this software, got about 10 Megahashes/second with mobile quad core CPU. Of course that is not much if you compare to GPUs,
but if you have high-performance server at your disposal - with a lot of server-class CPUs - that command line software could help you a lot
Make a brief look at README file before using. If you would get htobe32 compilation error, open eschalot.c file and uncomment "#define NEED_HTOBE32"