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    Author Topic: Vanitygen: Vanity bitcoin address generator/miner [v0.22]  (Read 1155141 times)
    samr7 (OP)
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    August 08, 2011, 07:41:56 PM
    Last edit: August 09, 2011, 03:42:21 AM by samr7
     #241

    New version posted.  This includes a lot of changes.

    • Bugfix for private key encoder.  It was possible for it to output a shorter-than-expected private key.  If you have a private key that does not start with a 5, or is less than 51 characters long, don't use it.  If you have such a private key with a bitcoin balance, contact me for assistance.
    • Oclvanitygen #pragma unroll has been removed, for Rassah.  If you experienced a crash with a Radeon card, but safe mode (-S) worked, this should fix the problem.
    • Oclvanitygen work size autoconfiguration now sets more reasonable limits for smaller GPUs.
    • Numerous performance tweaks to oclvanitygen, including AMD BFI_INT instruction patching.
    • Edit: Meaning of oclvanitygen -w flag has changed: It now specifies number of work items per hardware thread per job, and constrains the grid size.  -w1 now specifies a smaller overall work size.  The previous effect can be done with -t.
    • Windows binary package now includes x64 build: vanitygen64.exe.  This binary runs about 50% faster, if you have a 64-bit edition of Windows.

    I never knew just how slow the 32-bit Windows build was until recently, and must apologize for not posting a 64-bit build sooner.  64-bit arithmetic makes a huge difference.  The Windows binaries for 0.17 are also built and linked with more MSVC optimizations enabled, and now include statically-linked OpenSSL.  Despite all of this, the x64 Windows build seems to run about 10% slower than an equivalent Linux build.
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