Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Thu, 18 Oct 2012 08:08:36 +0530
From: Sayantan Datta <>
Subject: Re: bf-opencl fails self-test on CPU

HI magnum,

On Thu, Oct 18, 2012 at 2:49 AM, magnum <> wrote:

> Just try it. Usually it's increadibly simple to add vectorizing. Most of
> my formats run vectorized on CPU and non-GCN AMD, and scalar on nvidia &
> GCN. Just a few #ifdefs.
> I always use uint4 or ulong4 (even though those end up in different size).
> I think once you use eg. uint4 instead of uint, the auto vectorizer may
> change that to other vector sizes automatically if/when beneficial. That is
> much less magic than auto vectorization of scalar code.

I guess you mean I should vectorize the private arrays that have a compile
time constant indexing. Is it worthwhile to vectorize the arrays stored in
global memory /local memory ? For blowfish I don't have much private arrays
with compile time constant indexing. So I made a new kernel that process
two hash together using uint2 vectors. I will later try processing four of
them together using uint4.


Content of type "text/html" skipped

Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.