Date: Sat, 27 Jul 2013 10:13:43 +0200 From: Lukas Odzioba <lukas.odzioba@...il.com> To: john-dev@...ts.openwall.com Subject: phpass-opencl experiments Just to let you know. I played for a while with phpass-opencl code here are my remarks. nv - Titan amd - core 0 of 7990@...MHz Current KPC is equal 2048*96: amd: 1629K nv: 876K After I changed KPC to 2048*1024 amd: 1638K nv 1015K After applying attached patch: amd: 1762K nv: 1115K Speed of my old code with hash comparision on gpu side with hash "embedded" in salt, is 2125K on amd (nv - not tested). With proper comparision on gpu side via kernel_cmp we probably will not get so much improvement but it should help a bit. I'll try to implement those changes after cmiyc, now I want to play with md5crypt, because we could gain more there. Of course I don't mind if someone else pick it up. Lukas Download attachment "phpass_FFtweak.diff" of type "application/octet-stream" (1373 bytes)
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