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Document --request-vector and --request-scalar options in README-OPENCL.

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1 parent fa44f74 commit 645d6a3ddb318ce2f3f14d6df5d72dce12db4b23 @magnumripper committed Mar 14, 2013
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@@ -165,6 +165,26 @@ xsha512-opencl Mac OS X 10.7+ salted SHA-512
zip-opencl ZIP-AES PBKDF2-HMAC-SHA-1
+Optional vecorizing
+A few formats honour the --request-vector option. A vectorized format runs
+faster on some devices (notably pre-Tahiti AMD GPUs, and CPUs). If a format
+defaults to vectorizing, --request-scalar will disable it. There has been a
+lot of problems with vectorizing, possibly due to driver bugs so it's usually
+not the default. The following formats currently support optional vectorizing:
+krb5pa-sha1-opencl Kerberos 5 AS-REQ PreAuth etype 17/18 aes-cts-hmac-sha1-96
+office2007-opencl Office 2007 SHA-1 AES
+office2010-opencl Office 2010 SHA-1 AES
+office2013-opencl Office 2013 SHA-512 AES
+wpapsk-opencl WPA-PSK PBKDF2-HMAC-SHA-1
+When a format runs vectorized, it will show algorithm name as eg. [OpenCL 4x]
+as opposed to just [OpenCL].
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