README CUDA:
If you have problems with JtR CUDA support:
  Please check that paths to yours CUDA library are proper in Makefile:
    CUDAPATH = /usr/local/cuda/lib
    CUDA64PATH = /usr/local/cuda/lib64
  Please check that yours PATH contains cuda lib,bin and include paths.
  Please check that yours LD_LIBRARY_PATH contains cuda lib path

Performance issues:
  If you have got Fermi or newer card change "-arch sm_10" to "-arch sm_20" in the NVCC_FLAGS (Makefile).
  Default THREADS and BLOCKS settings might not be optimal.
  To get better performance you can experiment with THREADS and BLOCKS macros defined for each format in cuda*.h file.
  For MSCash2[1]:
    CARD NAME	BLOCKS	THREADS	SM	RESULT
    GTX460	14	128	20	14194 c/s
  For WPAPSK[1]:
    CARD NAME	BLOCKS	THREADS	SM	RESULT
    GTX460	14	256	20	15186 c/s
  For PWSAFE[1]:
    CARD NAME	BLOCKS	THREADS SM	RESULT
    GTX460	112	512	10	50746 c/s
  For XSHA512[2]:
    CARD NAME	BLOCKS	THREADS	SM	RESULT
    GTX570	1600	256	??	67385K c/s

You can contact us at
[1] lukas[dot]odzioba[at]gmail[dot]com
[2] qqlddg[at]gmail[dot]com
or john-dev mailing list
